China fiber optic Factory
Copper SFP Transceivers
Copper SFP Manufacturer, Direct Sales from Factory
DATA CENTER CABLING
fiber to the home
fiber to the antenna
10G SFP Copper module
1000BASE-T Copper SFP
10GBase Ethernet Introduction
Choosing Between 10GBASE-T and SFP+
Huihongfiber’s Copper SFPs currently have two types: Copper SFPs and SFP+ Copper SFPs.
Copper SFP: According to different transmission rates, it can also be divided into 100M Copper SFP, Gigabit Copper SFP and self-adaptive Copper SFP. The gigabit optical module integrated on the CMOS chip can be used for high-speed Ethernet and Gigabit Ethernet. Different from other Copper SFPs, this Copper SFP is more innovative in speed and can meet various needs.
SFP+ Copper SFP: also known as 10 Gigabit Copper SFP, the rate is 10G, designed for high-speed communication links, mainly used in 10 Gigabit Ethernet, and its power consumption is also very small. In addition, the SFP+ Copper SFP is the first 10G optical module that transmits through a network cable. It can be used in the SFP+ port of a switch or a network card to realize the connection with a network device with an RJ45 interface.
The maximum transmission distance of the 10GBASE-T SFP+ RJ45 Copper SFP on the Cat6a/7 network cable is 100 meters. Compared with the embedded 10GBASE-T RJ45 port, each port saves at least 0.5W of power. It is the first module that can provide 10Gb/s rate through Ethernet copper cable (network cable), and this module complies with SFF-8431 and SFF-8432 MSA standards. In addition, compared with 10GBASE-T fixed port electrical port switches, 10GBASE-T SFP+ Copper SFPs can work on existing SFP+ ports, providing greater flexibility for their applications.
The typical features of 10GBASE-T SFP+ Copper SFP are as follows:
Dimensions: Interoperable with any rack system with SFP+ ports.
Performance: Using the PHY standard, data can be transmitted error-free over copper cables using block encoding.
Innovation: Support manageable hot-plug function.
Auto-negotiated backward compatibility: It can be compatible with previous generation 10/100/1000BASE-T networks for seamless migration to 10Gb Ethernet.
10GBASE-T SFP+ Copper SFP, 10G DAC high-speed cable and 10G SFP+ optical module are the main solutions for 10G Ethernet. However, with cheap SFP+ DAC high-speed cables and SFP+ optical modules that can be used for 10G Ethernet, why do we need 10Gb SFP+ Copper SFPs?
First of all, the RJ45 ports on the switch are used to connect to the network cable, but the few RJ45 ports on the switch are not enough to meet the needs of copper cabling in the data center. In this case, the 10GBASE-T SFP+ Copper SFP can convert the optical port into an electrical port to meet the shortage of RJ45 ports on the switch.
Secondly, in data centers and enterprise networks, the length of most links is between 10m and 100m, and the 10GBASE-T SFP+ Copper SFP can provide 10Gb/s data transmission within a distance of 100 meters, which is very good It makes up for the limitation that the SFP+ DAC high-speed cable can only transmit 10 meters.
Finally, 10GBASE-T Copper SFPs can be backward compatible with 10/100/1000BASE-T optical modules, thus saving a lot of budget for data center networks. When connecting the 10G optical module to the copper cable network, the 10GBASE-T Copper SFP can be directly added to the copper cable network, while the 10G SFP+ optical module needs to be used together with the fiber optic transceiver to realize this application, so 10GBASE-T T SFP+ copper module has advantages over SFP+ optical module solution, because the cost of copper cable infrastructure is much lower than that of optical fiber.
Huihong Technologies makes both 10Gbase-T copper SFP+ and 10/100/1000Base copper SFP, factory price, super quality and fast delivery.
Thank you for your inquiry
At present, the link distance between devices in most data centers is between 10m and 100m, and the use of 10G SFP+ Copper SFP can make up for the lack of transmission distance of SFP+ high-speed cables. The 10G SFP+ Copper SFP adopts the RJ45 interface and is used together with the super six or seven network cables, and the cost of copper cable wiring is lower than that of optical cable wiring. The 10G SFP+ Copper SFP can be directly used in the existing copper cable wiring system to achieve 10G transmission, while using the SFP+ optical module requires wiring with optical cables, which will increase deployment costs. If you want to use SFP+ optical modules in the existing copper cabling system, you need to add devices such as Ethernet switches or photoelectric converters. 10G SFP+ electrical port module is a cost-saving 10G connection solution, huihongfiber makes Gigabit and 10 Gigabit electrical port modules, compatible with Cisco, Huawei and other switches.


RETURN to HDTV.videotechnology.com
CAMERAS AND SENSORS: BACKSTAGE
Nearly all broadcast cameras today use CCD sensors to produce video and emerging electronic cinema. Unfortunately, as broadcast technology expands its resolution from NTSC and PAL to HDTV at the necessary frame rates, the S/N ratio of CCD-based cameras degrades ~3 dB per octave. For example, broadcast camera S/N ratio under standard illumination of 2000 lux at f/8 is at least 62 dB for NTSC (700x520), but degrades to 54 dB for HDTV (1920x1080). Prototype UHDTV (~4000x2000) cameras, which are otherwise attractive for electronic cinema, have SNR <45 dB, which is on a par with the best VHS video.
Fortunately, two fiercely competitive factors are resulting in a superior alternative to CCDs, which have enjoyed nearly 20 years as the preeminent sensor technology for video. First, the CMOS integrated circuit technology used for memory and microprocessors is continuing to improve independent of the HDTV impasse. Second, a basic architectural difference relative to CCD sensors is enabling CMOS imaging systems-on-chip (i-SoC).
CMOS SoC technology is best represented by microprocessors that make today’s consumer PCs more powerful than the supercomputers used to put a man on the moon and help end the Cold War. While the first derivative SoC imaging sensors were inferior to CCDs, the emerging technology is now technically superior in many respects because deep submicron technology is widely available. Deep submicron refers to the lithographic dimension where the smallest electronic circuit feature is less than 0.25 microns. The nascent submicron CMOS devices for HDTV and UHDTV have hence become digital sensors offering lower noise and better resolution while using ~10X lower power to directly generate 12-bit video. Consequently, it’s now possible for Electronic News Gathering (ENG) cameras to finally migrate to the compact form factor of consumer camcorders by embracing CMOS.
While NTSC television has held on for over 50 years and CCDs have ruled as the best imaging sensors for about 20 years, it is thus a likely point in time for HDTV to move forward by exploiting the emerging CMOS technology.
CCD technology is mature with respect to yield and performance. Both benchmarks are either at theoretical limits or practical levels that have not changed significantly for several years. While their noise can be extremely low for applications such as astronomy where the image is read at a leisurely rate, generating high-speed video results in higher noise and a concomitant degradation in S/N ratio.
Assembled in Figure 1 are CCD noise in volts and electrons and camera S/N ratio data from CCD and camera manufacturer datasheets. These many CCD-based cameras and sensors support applications encompassing astronomy through video in its many forms. Also shown for convenient reference is the approximate camera S/N ratio, including the well-known data points for standard definition video and HDTV.
The figure clearly shows the practical lower limit for CCD noise due to the composite white noise of the sensor and the camera electronics. The trend also graphically reflects the typical 3 dB increase in CCD noise per octave in video frequency as has been reported. Of utmost importance for camera manufacturers and broadcast studio engineers is, consequently, the associated upper limit on the S/N ratio. This upper limit, which is depicted for all practical purposes by the trend line labeled “empirical white noise limit”, is increasingly unattractive as sensors move well into the megapixel regime for video applications.
At lower frequencies, CCD noise and SNR varies over several orders of magnitude due to the variation in flicker noise for the different sensors, camera designs and semiconductor fabrication processes.
CMOS-based imagers for both infrared and visible applications now use pixel-based amplifiers in the imaging system-on-chip architecture shown in Figure 2. The pixel-based amplification can appropriately set the signal bandwidth so that there is no longer need for external 30 to 33 MHz filtering for HD cameras.
This factor reduces the relevant noise bandwidth from tens of MHz for CCDs to tens of kHz for CMOS imaging SoCs. This significant advantage holds even for HDTV and UHDTV cameras, so that the dominant noise can instead be set by the reset noise of the specific pixel design. Conversely, the read noise of a large format CCD is often dominated by the output amplifier’s thermal noise. This is especially true after CCD video bandwidth is best doubled to perform correlated double sampling without compromising CCD MTF. Instead, however, the analog video bandwidth is usually constrained to minimize the noise at the expense of resolution.
Designers of CMOS-based sensors reduce noise while eliminating the classic noise vs. resolution trade because the pixel-based amplifier’s bandwidth better matches the imager sampling frequency. The CMOS output buffer’s noise is usually negligible.
In practice, therefore, CMOS can circumvent the “3 dB per octave” increase in noise that is experienced with CCD sensors and the associated degradation in camera S/N. Several CMOS manufacturers have now shown this basic trait. Included in Figure 3, for example, are noise measurements at frequencies as high as 75 MHz with Rockwell Scientific’s ProCam-HD sensor wherein the read noise is <25 e- so that the camera S/N ratio can be boosted well above 54 dB. Recently, Takayanagi’s  8.3M pixel CMOS sensor for UHDTV offers 10-bit performance at the composite data rate of ~ 500 MHz.
Today’s broadcast cameras offer the camera operator the choice of changing the video bandwidth to trade lower noise vs. higher resolution. This option is not necessary with CMOS-based cameras because the noise-setting bandwidth is at the pixel amplifier rather than the video output amplifier. So, besides the potential for lower noise and higher S/N ratio, broadcast cameras with CMOS sensors can have full Nyquist-limited resolution.
Thus, for the same architectural reasons that enable lower read noise at high video rates, higher square wave modulation transfer function is achieved with CMOS-based imaging sensors than competing CCDs. Figure 4 directly compares actual video waveforms from the green channels of CCD and CMOS cameras for several pixels of video and one line of video. In the case of the CMOS sensor, a square wave pattern with continuously variable frequency was used to produce the line video. Since the CMOS sensor has digital output, the analog video is reconstructed data using a high-speed video DAC.
While the modulation for the CCD at 1000 lines is seen to be nearly zero due to the 33 MHz filter used to reduce white noise, the ProCam-HD CMOS sensor maintains full resolution. Further, while the former’s read noise is up to 4 times higher than the latter, the CCD rise and fall times are unsettled and about 3 times slower than the DAC’s 1.5 ns response time.
The square wave MTF’s for the two 1920x1080 sensors are compared in Figure 5. The CCD data is for the green channel of a 3-CCD camera and the CMOS data include the blue, green, and red channels. The blue channel MTF at the Nyquist frequency is only slightly below the Nyquist limited value of ~ 70%. Even the red channel from the CMOS sensor, which is degraded by the MTF of the test optics, is superior to the critical green channel of the CCD.
Perhaps the highest amount of the criticism aimed at CMOS sensors is directed equally toward sensitivity and fixed pattern noise. The latter is an issue that is being handled by the on-chip signal processing capability, both analog and digital. The former can be more difficult to mitigate since manufacturers of CCD-based cameras have cleverly enhanced their sensitivity beyond the limit constrained by each pixel’s area by further compromising resolution. Since CCD MTF is not Nyquist-limited for HD video, CCD manufacturers offer an operating mode where two adjacent video lines are co-added to nearly double sensitivity. While this degrades vertical resolution, concerns for maximizing sensitivity and S/N ratio usually take precedence.
The sensitivity of today’s best CMOS sensors matches the sensitivity of the comparable CCD devices since the amount of light collected at each pixel is now roughly equal. Specifically, when deep submicron CMOS processes are used to design and fabricate the sensor, the photon collection efficiency of a CMOS pixel supporting progressive image formation is significantly higher than for a progressive CCD at the 5 micron pixel pitch that produces 2/3 inch HDTV sensors.
In the absence of microlens technology, both Frame Interline Transfer and Frame Transfer CCDs can collect more light than today’s CMOS sensor. The former, however, supports only interlaced image formation with a full field time delay to further degrade resolution. The latter are still being developed to support HD video and pose challenges with respect to vertical smear, shading and cost.
Other factors must be considered as broadcast camera technology migrates from NTSC to ATSC. These should include the following:
§ Reduce camera cost to enable quick acceptance and proliferation
§ Lower camera power to reduce heat and enhance battery life
§ Reduce camera size to enable proliferation and improve usability
§ Eliminate vertical smear
§ Provide digital video to enhance creativity, ease of use and facilitate cinema “look” when desired
§ Provide full performance support for 1080/60p to enhance content creation at highest quality to minimize generation of artifacts for broadcasting 1080/60i and 1080/30p
The collective evidence now available from several manufacturers strongly suggests that CMOS sensor technology best addresses both these factors and the highly technical issues previously discussed. CMOS imaging system-on-chip technology thus can truly help migrate broadcast technology to the next level.
CMOS sensor technology has already enabled the development of visible focal plane arrays with ultra-low read noise and high sensitivity for the HDTV market. The successful integration of silicon photodetectors with low-noise pixel-based amplifiers in fine pixel pitch via state-of-the-art CMOS fabrication technology now not only suggests, but is demonstrating the imminent obsolescence of CCDs in high-quality HD broadcast applications.
The charge-couple device (CCD) has been the preferred visible image-capture sensor technology in a variety of applications from consumer digital cameras to expensive scientific instruments primarily due to its relative low-noise operation. However, the CMOS-based paradigm today offers fundamental performance advantages including optimum bandwidth and higher sensitivity. CMOS image sensors available today offer the lowest noise, lowest power consumption, 12-bit ADC performance of any HD sensor on the market. These sensors contain photodetectors optimized for low dark current, high quantum efficiency and high uniformity that operate at high HDTV data rates with lower noise than any CCD alternative.
The advantages of CMOS sensor technology have arrived and offer the HDTV broadcast and Professional Video markets the most advanced performance available.
2. M. Loose, L.J. Kozlowski, A.M. Joshi, A. Kononenko, S. Xue, J. Lin, J. Luo, I. Ovsiannikov, J. Clarke and T. Paredes, “2/3-inch CMOS Imaging Sensor for High Definition Television,” 2001 IEEE Workshop on CMOS and CCD Imaging Sensors, June 2001.


Lumen, Candela, Lux
Do you know the difference between Lumen, Candela e LUX?
Traço de Luz explains it!
Have you wondered what exactly means concepts like Lumen, Candela and Lux?
These concepts are part of the lighting design dictionary. They are essential for those of us who want to make the best of our professional architecture projects or from our personal projects for home with a nice and responsible lighting design project.
Light is part of our routine and it’s essential for our well-being. Each space has, accordingly to its activity, a specific light necessity.
To make sure your space provides the correct light following the standards for comfort and efficiency you should know precisely what’s the difference between Lumen, Candela and Lux.
Lumen (lm) Is the unit that measures the luminous flux describes the quantity of light emitted by a light source.
Candela (cd) Is the unit that measures the luminous intensity which describes the quantity of light that is radiated in a particular direction. This is a useful measurement for directive lighting elements such as reflectors. It is represented by the luminous intensity distribution curve (LDC).
Lux (lx) Is the unit that measures the Illuminance which describes the quantity of luminous flux falling on a surface. It decreases by the square of the distance (inverse square law). Relevant standards specify the required lluminance. Illuminance: E(lx) = luminous flux (lm) / area (m2)
Traço de Luz, Light up!
Because light matters!
Follow us and keep updated about the best of lighting design.


There is now a wide range of lenses available with distinct features.
We will give you the best advice on the type of lenses for you.
High Index Lenses
Much thinner and lighter than glass. With high index lenses, you can avoid having “milk bottle” lenses.
Lenses made with Trivex material are ultra-light for ultimate comfort. Trivex material is one of the lightest lens materials on the planet. Also Impact resistant.
Progressive Addition Lenses (PAL)
Recent technologies have developed this revolutionary lens. This new generation lens allows a seamless transition between your distance and near vision by incorporating multiple focal distances into one lens. The PAL improves the look and performance of the classic bifocal lens.
Reduces glare, reflections, and “ghost images.”
Scratch Resistant Coating
A great investment to prevent minor scratches.
Cosmetic and Specialty Tints
Available in a variety of colors and shades.
Very accommodating for an outdoor lifestyle. When the wearer goes outside, the lenses darken or tint. When the wearer goes back inside, the glasses become clear.
Eliminate almost all glare, reducing eye strain and increasing visibility.
No matter what your particular need, there’s a specialty lens designed for you.
Highest Quality Lens Designs + Brands some of our Trusted Ophthalmic lens Vendors: Essilor, Hoya, Transitions


👓👓See things again with clarity and clarity than before!🤓🤓
💥💥💥Get your "new eyes"
Get an instant 20/20 vision without going for an eye checkup with the Adjustable Glasses Unisex Dial Vision Lens. You can now achieve the clear vision and focus without any prescription with this glasses. Using the dial on the side of the glasses, you can adjust its focus to your comfortability.
The Wonderful Adjustable Glasses are the latest innovation in the field of optometry
Glasses are the important solution to solve problems such as the slow deterioration of vision that makes people always constantly need new glasses and the constant change of them when both eyes have a short and long distance vision impairment.
Each lens has a diopter range of -7.0 to +4.0, so you can adjust the magnification
How It Works
Unlike your usual glasses which only allows you o see in a definite distance, these adjustable glasses are not like that. It enables you to adjust the lend so you can zoom the distance and see clearly. This is NOT a replacement for your prescription glasses, but just an aid for reading in a more focus way. You can adjust its use from distance glasses to reading glasses! A great help for people with near and farsightedness. But remember, do not use this glasses for driving! These are only designed for reading and doing crafts. Rotate the dial on the side to adjust the glasses from viewing from near or afar.
See all the benefits
✔ Scratch resistant and anti-glare
✔ Shock and break proof
✔ Water and dirt repellent
✔ Dust repellent and easy care
✔ Increased contrast and without fatigue
You do not need new glasses
The Wonderful Adjustable Glasses solve the problem of needing new glasses when your vision has deteriorated. The ingenious mechanism allows you to change the magnification of the glasses, you just have to turn the knobs and you can see again well.
No more changes to read and view from a distance
Because the glasses are adjustable, you no longer have to change them every time you need to read or watch from a distance. This is done in a few seconds by turning the buttons.
The glasses are very strong and shock resistant and have a flexible design so that they do not break as fast as normal glasses. So you don't have to worry about them breaking when they fall.
Smart and Durable Design
The lens is made of durable acrylic materials. You can see that the lens is made of layers which are adjustable left to right. It has a dial on the side of the glasses so you can adjust to your needs depending if you want to see what is in the distance or what is near you. The design is both suitable for men and women. Very lightweight and comfortable when worn. Will not leave any marks in the nose bridge.


Dear Jaime Lasdauskus
I'm sure you've heard of radiation. Well, not all radiation is bad or dangerous like the radiation from nuclear reactors or bombs. Most radiation is good for us--in the right doses. We couldn't live without it.
Heat radiation is electromagnetic radiation with a medium wavelength.
The wavelength is like the distance between ripples that are travelling over a pond.
But what's this got to do with the sky's being blue?
What happens is that the light from the sun is white. Now you may know that white light is really a mixture of different colours...or different wavelengths of light. When all these different wavelengths reach the top part of the atmosphere most of them pass straight through but some of them don't. That's because there are molecules of gas (the air) that are about the same size as the wavelength of the blue and violet light (about 35 micrometres or 35 millionths of a metre across). So they get bumped off course.
The ultraviolet particles are just the right size to get absorbed by ozone molecules (groups of three oxygen atoms joined together). That's why the ozone layer is important--it absorbs most of the dangerous ultraviolet radiation.
But the blue light is scattered a bit and not absorbed so much. It zips and zaps around the sky until it finally bounces in our direction. So we see some of the sun's blue light coming from all over the sky.
That's why the sky does not appear to be blue at night. There's not enough blue light from the moon or stars for us to notice.
But during day time it is different. Because visible light is most intense at 0.5 micrometres (which we see as blue), more light is scattered at this wavelength than at any other wavelength--and the sky appears blue.


The eTOP Series 500G HMI products combine state-of-the-art features and top performance with an oustanding design. They are the ideal choice for all demanding HMI applications including factory, energy and marine applications.
The eTOP510G features a high-brightness, contrast-enhanced ruggedized 10.1” TFT widescreen display with LED backlight. The product has been designed for use in harsh environments and outdoor applications.Glass bonding assembly and glass surface treatment provide for superior optical performance resulting in a sunlight-readable product. The durable glass touchscreen requires the human touch, eliminating false activations, and offers high reliability and durability; it will continue to work even when surface is scratched or contaminated.


Someday we won't need curtains or blinds on our windows, and we will be able to block out light -- or let it in -- with just the press of a button. At least that's what Keith Goossen, associate professor of electrical and computer engineering at the University of Delaware, hopes. Goossen and Daniel Wolfe, who earned a doctoral degree from UD last year, developed panels that can switch between allowing light in and blocking it out. This "smart glass" technology could be utilized in eco-friendly windows, windshields, roof panes and building envelopes, absorbing light and heat in the winter and reflecting it away in the summer. Although Goossen isn't the first scientist to make smart glass, his team's invention is about one-tenth the price of other versions. It is also more transparent in its transparent state and more reflective in its reflective state than competitors, he said.
The principles behind this smart glass technology are surprisingly simple. It starts with two sheets of plastic separated by a thin cavity. The plastic contains tiny cube-shaped structures that make the material retroreflective, meaning that it bounces light back to its source, like a bicycle reflector does. Then the chamber is filled with a fluid called methyl salicylate -- an inexpensive wintergreen extract that happens to be the active ingredient in some over-the-counter pain relief creams. This liquid has optical properties, or interaction with visible light, that match the optical properties of the retroreflective plastic. When combined, the light can pass through, and the system becomes transparent. This is called refractive index matching. Goossen's smart glass system can switch from transparent to reflective a thousand times without degrading, as shown in a paper published late last year in the journal Optics Express Goossen uses 3-D printing to make his prototypes, but this technology could eventually be manufactured at a high volume and low cost using injection molding. He is now testing his system over a wide range of temperatures to see how it performs, especially as it approaches temperatures that could cause the fluid within to freeze, which will be between 3 and 16 degrees Fahrenheit, depending upon the eventual fluid that is used. Commercialization may eventually follow.


A photographer called Michael Schneiderusing captured a stunning image of the moment ice crystals froze midair, creating a ‘halo’ around the sun.
He captured the display using just an iPhone 11, while skiing down the Hörnligrat Mountain in the Swiss Alps.
The optical phenomenon, which is actually known as a 22° halo, occurs when light interacts with ice crystals suspended in the atmosphere.
The crystals can form high up in cirrus clouds, or close to the ground.
‘Just like raindrops scatter light into rainbows, the crystals of ice can reflect and refract light, acting as mirrors or prisms depending on the shape of the crystal and the incident angle of the light.’
Schneider said he was skiing down the mount when he looked behind towards the top of the mountain and saw the stunning event forming.
‘I quickly realized that a halo was developing in the backlight to the Sun, initially very inconspicuous until this light phenomenon increased incredibly,’ Schneider said in comments obtained by SWNS.
The image was taken in November 2019 around 11AM on the Hörnligrat, the mountain station.


Discover exceptional LED boat lights with minimal power draw in the Blue Water LED Extreme Pro Deck LED Lighting Kit. Featuring an IP68-rated waterproofing, this boat lighting kit stands above the competition with superior lighting and expert craftsmanship. The aluminum housing has a rugged compact design that stands up to the harshest boating conditions, and the 4′ wire lead provides versatile mounting options for a boost of light wherever you need it…the application possibilities are endless. The kit was redesigned to be extremely easy to install, high powered yet dimmable. Great for the deck of your boat, kayak, fishing canoe, truck bed, even in your truck wheel wells. Powerful 450-lumen lighting at a wide, 150° dispersion angle outshines imitators’ lights, and these LED boat lights sip just 4.5W of power from a 9–30V DC source for strong lighting that won’t drain the battery.
The Blue Water LED Extreme Pro Deck LED Lighting Kit includes mounting bases for straight and curved surfaces, and stainless steel mounting hardware. 2.8″ x 1.5″. Manufacturer’s lifetime limited warranty. Extreme Pro Deck LED is available in the following color options: Red, White, Blue, Green, or Amber.
Extreme Pro Deck Light LED Kit includes
- 1 – Extreme Pro Blue Water LED™ Deck Light
- 1 – Flat surface mounting pad
- 1 – Curved surface mounting pad
- 2 – Machine mounting screws
- 2 – Self-tapping mounting screws
- 2 – Flat washers
- Aluminum housing
- 2.8″ X 1.5″
- IP68 waterproof
- 150 degree light dispersion angle
- 4ft Wire Lead
- Mounting bases for straight and curved surfaces included
- Stainless steel mounting hardware included
- Voltage – 9-30 VDC
- Color Options – Red, White, Blue, Green, Amber
- Lifetime Limited Warranty
Amber, Blue, Green, Red, White
**Shipped factory direct
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SOLD Item #111
v900L Vision System
v900L Visual Enhancement System-New LED Technology with Mobility
The v900L Visualization System combines a proprietary superior white light LED with two-way polarization to enhance the vision of medical professionals during dermal inspection procedures by removing surface glare from the patient’s skin promoting improved viewing of sub-surface features. Reflected light is magnified and then polarized again as it passes back through the Visi-Shield to the viewer.
Estimated Value: $2,295
Minimum Bid: $1,500
Warranty: Syris Scientific (Syris) warrants that the Equipment conforms to any specifications provided in writing by Syris to Customer for that Equipment, is of sound materials and workmanship, is new and unused, unless otherwise specified.
Bidder Qualifications: Physicians only
Company: Syris Scientific
22 Shaker Rd, PO Box 127
Gray, Maine 4039
Company Phone: (207) 657-7050
Company Website: syrisscientific.com
For Additional Details Contact: Pam Wilkinson, email@example.com


Project titled “Quantum Optical Technologies” is carried out within the International Research Agendas programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund.
The Centre for Quantum Optical Technologies (QOT) explores quantum phenomena, such as superpositions and entanglement, in optical and optically controlled system, with the long-term prospects of their practical utilisation. In the long-term, the outcomes of this research are expected to be used in practice and translated, for example, into more sensitive sensors or safer communication methods. The Centre has been established by the University of Warsaw in partnership with the University of Oxford under the International Research Agenda Programme operated by the Foundation for Polish Science. It is hosted by the Centre of New Technologies, an interdisciplinary scientific unit of the University of Warsaw focused on research and technology development. The director of QOT is Prof Konrad Banaszek.
QOT currently consists of five laboratories focussing on:
- Quantum Technologies (QT Lab), led by Prof Konrad Banaszek.
- Quantum Memories (QM Lab), led by Dr Wojciech Wasilewski.
- Quantum Information and Inference (QI² Lab), led by Dr Jan Kołodyński.
- Quantum Resources and Information (QR+I Lab), led by Dr Alexander Streltsov.
- Quantum Optical Devices (QOD Lab), led by Dr Michał Parniak.
Financial support: 34 999 430,00 PLN
The International Scientific Board consisting of world-renowned researchers oversees the development of the QOT centre, and is responsible for the employment of new group leaders.
Members of the International Scientific Board:
Katarzyna Chałasińska-Macukow – University of Warsaw, Poland
Artur K. Ekert – University of Oxford, United Kingdom
Susana Gema Fernández-Huelga – Universität Ulm, Germany
Peter L. Knight – Imperial College London, United Kingdom
Gerd Leuchs – Max Planck Institute for the Science of Light, Erlangen, Germany
Paolo Mataloni – Sapienza Università di Roma, Italy
Eugene Polzik – Niels Bohr Institute, University of Copenhagen, Denmark
Christine Silberhorn – Universität Paderborn, Germany
Krishna Thyagarajan – Bennett University, Greater Noida, Uttar Pradesh, India
Nikolay V. Vitanov – St. Kliment Ohridski University of Sofia, Bulgaria
Ian A. Walmsley – University of Oxford, United Kingdom


Grove - UV Sensor
The Grove – UV Sensor is used for detecting the intensity of incident ultraviolet(UV) radiation. This form of electromagnetic radiation has shorter wavelengths than visible radiation. The Grove - UV Sensor is based on the sensor GUVA-S12D which has a wide spectral range of 200nm-400nm. The module outputs electrical signal which varies with the UV intensity, which gives your suggestion if it is a good idea to beach today.
High stability Good Sensitivity Low power consumption Schottky type photodiode sensor Wide response range Grove Interface Specification
Item Min Typical Max Unit Operating Voltage 3.0 5.0 5.1 VDC Current 0.31 mA Output Voltage mV Response wavelength 200 ~ 370 nm Working Temperature -30 ~ 85 ℃ Usage
UV sensors are used in many different applications. Examples include pharmaceuticals, automobiles, and robotics. UV sensors are also used in the printing industry for solvent handling and dyeing processes. In addition, UV sensors are also used in the chemical industry for the production, storage, and transportation of chemicals.
The fact of the UV sensor work is: In sunlight, the UV index and Photocurrent are a linear relationship.
About our Grove - UV Sensor, we have converted Photocurrent to corresponding voltage value collected by Arduino/www.simgin-chip.com. The output voltage and the UV index is linear:
illumination intensity = 307 * Vsig
where: Vsig is the value of voltage measured from the SIG pin of the Grove interface, unit V. illumination intensity unit: mW/m2 for the combination strength of UV light with wavelength range: 240nm~370nm
Note: To calculate the UV index value, please refer to http://www2.epa.gov/sunwise/uv-index. It's hard to say that the measurement from


Current DVDs employ a 650-nanometer red laser and have a recording capacity of 4.7 Gbytes. The Blu-ray Disc’s 405-nm blue-violet laser enables the recording and rewriting of up to 27 Gbytes of data.
Which color laser is used to read and write data in a DVD?
DVD uses a red colour laser to read and write data.
How does laser read DVD?
A DVD player is very similar to a CD player. It has a laser assembly that shines the laser beam onto the surface of the disc to read the pattern of bumps . The DVD player decodes the MPEG-2 encoded movie, turning it into a standard composite video signal.
Which Colour laser beam is used in CD and DVD?
The role of the laser
Initially, CD lasers with a wavelength of 780 nm, which is within infrared range, were used. For DVDs, the wavelength was reduced to 650 nm (red color), and the wavelength for Blu-ray Disc was reduced to 405 nm (violet color).
How does a laser read data on a CD or DVD?
The CD drive shines a laser at the surface of the CD and can detect the reflective areas and the bumps by the amount of laser light they reflect. The drive converts the reflections into 1s and 0s to read digital data from the disc.
Why does Blu-ray use a blue laser?
A blue-violet laser, emitting at a wavelength of 405 nanometres, reads the pits. Because the laser used in a Blu-ray is of a shorter wavelength than that used in DVDs (635 or 650 nanometres), the spiral track can be more tightly wound. Thus, the Blu-ray disc can hold more information than the DVD.
What is the working of DVD?
DVDs VS CDs. Digital versatile discs (DVDs) can store more information than compact discs (CDs) because they have smaller pits, placed closer together. It is the pattern of these pits burned onto a disc’s surface that encodes the 1’s and 0’s a player translates into sound and/or images.
What is the price of DVD player?
DVD Players Price list in India (September 2021)
|DVD Players NAME||PRICE|
|Samsung DVD-E370 DVD Player||Rs.2,980|
|Samsung DVD Player – DVD-E370||Rs.2,990|
|DXP PDVP-958 DVD Player Black||Rs.3,362|
|Dapic DS 959 DVD Player||Rs.2,360|
Is laser a photon?
“Laser” is an acronym for light amplification by stimulated emission of radiation. … These photons are all at the same wavelength and are “coherent,” meaning the crests and troughs of the light waves are all in lockstep. In contrast, ordinary visible light comprises multiple wavelengths and is not coherent.
What is difference between CD and DVD?
A Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. DVD+R is a recordable DVD format similar to CD-R. … The disc cannot be recorded onto a second time.
What is the difference between CD R and CD-RW?
A Compact Disc Recordable (CD-R) is a Write Once Read Multiple (WORM) disc. These discs can only record data once and then the data becomes permanent on the disc. … A Compact Disc Re-Writable (CD-RW) is an erasable disc that can be reused. The data on a CD-RW disc can be erased and recorded over numerous times.
How data is stored on CD?
Data is stored on the disc as a series of microscopic indentations called “pits”, with the non-indented spaces between them called “lands”. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands.
How is data recorded on a CD ROM?
A CD-ROM drive uses a low-power laser beam to read digitized (binary) data that has been encoded in the form of tiny pits on an optical disk. The drive then feeds the data to a computer for processing. The standard compact disc was introduced in 1982 for digital audio reproduction.


The Breathmeter is an instrument that measures specific biomarker molecules in exhaled breath. It uses mid- infrared tunable diode laser spectroscopy (TDLS) to measure specific gas phase molecules with sufficient sensitivity for medical applications. The table below lists some of the molecules that medical research has linked to different health conditions along with prominent mid-IR absorption bands. Breath analysis offers the promise of a truly revolutionary new tool for improving healthcare without adding significant new costs since expensive reagents or consumables are not needed. The Breathmeter is currently available for research purposes only, it has not been cleared for clinical use by the FDA.
Biomarkers in Breath


Global Optical Microscope Market 2016 by Manufacturers, Regions, Trends, Analysis, Forecast to 2021
To begin with, the report defines the Optical Microscope market and segments it based on the most important dynamics, such as applications, geographical/regional markets, and competitive scenario. Furthermore Optical Microscope market report provides detail analysis, forecast, Size, share, outlook, current trends, market demand, market growth. Macroeconomic and microeconomic factors environments that currently prevail and also those that are projected to emerge are covered in this report.
The optical microscope, often referred to as light microscope, is a type of microscope which uses visible light and a system of lenses to magnify images of small samples.
Request For Sample Report: http://www.fiormarkets.com/report-detail/24406/request-sample
Scope of the Report:
This report focuses on the Optical Microscope in Global market, especially in North America, Europe and Asia-Pacific, South America, Middle East and Africa. This report categorizes the market based on manufacturers, regions, type and application.
Market Segment by Manufacturers
Market Segment by Regions
North America (USA, Canada and Mexico)
Europe (Germany, France, UK, Russia and Italy)
Asia-Pacific (China, Japan, Korea, India and Southeast Asia)
South America, Middle East and Africa
Market Segment by Type
Market Segment by Applications
There are 13 Chapters to deeply display the global Optical Microscope market report.


Our eyes can be easily deceived when we view colour, and understanding the limitations of colour perception helps achieve clear expectations for colour accuracy. The deception is mostly due to our brain, which is processing a ton of information and doing the best it can. Some factors like genetics play a part, but so does the environment. The light in the environment is the biggest factor on how we perceive colour.
This post is a quick introduction to the different ways our perception of colour can be effected. This post is a summary – for a more in-depth look, please reference X-Rite’s Colour Perception Blog Series, the main source of this post.
Temperature of Light
The human eye can view millions of colours, but it breaks down to three primary colours: red, green, and blue.
RGB is the foundation of human colour vision.
It’s important to understand that objects don’t actually have a colour. They have properties that determine how light is absorbed and reflected. The mix of that reflected light is what our eyeball uses to perceive the colour.
This example of a red car under different light shows how our perception of colour can change when the ambient light changes. When the same colour is viewed under different light sources it can appear quite differently. Typically more blue under a night sky, or more yellow under a fluorescent light.
Our brains have learned that objects should look a certain way, so sometimes our brain applies this logic in interesting ways that can change our perception of colour.
The optical illusion below from Beau Lotto shows it really well. Once the rest of the colours on the cube are masked you can see how much they effect your perception of colour.
This is all very important to understand when colour communication is critical.
Reflectiveness and Texture
Since the colours an object absorbs and reflect have such a big effect on colour perception, the material of the object itself becomes important in the way the colour is perceived.
This can be a challenge in the manufacturing and print industries. Most print shops (including ours) will use bright ‘Day Light’ tuned bulbs to help ensure that colours are being viewed accurately, and to avoid common optical illusions.
Technology can be a roadblock to communicating colour, as well. One of the biggest challenges is between different displays on electronic devices. We view colour many ways: on our phones, TV, computer screens, in print, on a tablet, etc. The brightness and other variables will all change the way a colour is perceived.
The Environment and Fatigue
The environment that the colour is viewed in has a large effect on perception, but once that light passes through the eye there are other variables that can change the way a colour is perceived.
Retinal fatigue can contribute to colour perception issues. Just like the rest of our body, the eye benefits from rest, and is affected negatively by fatigue.
Use the example below from to experience retinal fatigue. If you stare at this image for around 30 seconds and then close your eyes, you will see a shadow of the image on the back of your eyelids. This ‘afterimage’ occurs because when we stare at an object the chemicals in our eye’s cones start to deplete and send incorrect information to our brain. Your eyes will adjust and reset shortly, but this is a good example of how quickly an eye can become fatigued and alter colour perception.
Background effects can play a role, as well. In the example below, are the arrows the same colour?
They really are. Each background colour strongly changes our eye’s ability to perceive colour.
So while light plays a big role, we need to remember that our eyes can be tricked. A tired eye cannot make great judgments. Surrounding colours and light in the environment can trick your eye and cloud your view.
Last but not least are our human traits. The human eye and brain has several limitations, and some people are better able to detect slight changes in colour. Curious about your colour deficiency? There’s a test at the end!
True colour blindness where a person sees only grey is apparently quite rare. We only use Red, Green, and Blue to perceive colour though, so any slight change in those chemical sensors will change the way we perceive light.
Age, poor colour memory, and life factors like stress can all play a role in your chemical reaction to wavelengths of light.
If you’re worried or curious about colour deficiency, the easiest thing to do is take a test!


I have a number of posts on my blog about upgrading your existing halogen bulbs to either HID (Xenon) bulbs for headlights or fog lights, as well as a number of articles on upgrading to LED bulbs for smaller things like DRLs, Reverse Bulbs, and City Lights. A commenter recently asked why I recommend HID vs LED setups depending on the bulb, which is a great question! Both LED and HID headlights have gained popularity in recent years because they offer the appeal of advance technology and high performance, as compared to traditional halogen bulbs. Whereas halogen bulbs more closely resemble the type of household bulbs that you would have at home, both LED and HID headlights use sophisticated technology to light your path. Both are good options for your vehicle, but there are some differences bear noting when choosing between the two. Let’s look at LED vs HID headlights and compare the two options throughout the rest of this post to understand when one option is better than the other.
Benefits of HID Lights
Also known as xenon headlights, HID (or high intensity charge bulbs) feature an arc of electricity created by electricity travelling between two tungsten electrodes inside the bulb, which is filled with xenon gas. The result is a brighter light than you get from a tungsten element alone. To put that into perspective, you can get about 3,000 lumens (a unit measuring the amount of light emitted per second) from an HID bulb, whereas a halogen bulb emits just about half that amount, for a difference of 90 square meters vs. 30 square meters of illumination. That results in better night driving visibility and increased safety, even in bad weather. HID bulbs also use much less energy than halogen bulbs and last much longer than halogen bulbs – 2000 hours of illumination as opposed to just 450. On the downside, HID lights are rather expensive when compared to other types of lights and because they are uniquely shaped, it can be difficult to retrofit an older car with these bulbs.
- Far brighter light, and a cooler color than halogen
- Far less energy consumption than halogen
- Longer lasting that halogen
- Bigger shape than halogen (may not fit)
- Needs a projector lens to focus beam or may blind oncoming drivers
- Requires a ballast to power it (needs room to mount)
- May need a coding update to your ECU
Benefits of LED lights
LED bulbs are relatively new on the automotive lighting scene, but they have gained huge popularity in recent years. LEDs are electrical conductors that emit light when they are turned on by way of an electrical circuit. The circuit is either switched on or it is off; these bulbs do not require a heating up period. One of the biggest advantages in favor of LED headlights is that they have very few parts. That means they can be made quite small and can withstand any vibrations and bumps that may occur on rough roads. They, too, consume less energy than halogen bulbs and are very long-lasting, sometimes up to tens of thousands of hours. One of the most popular reasons for choosing LED bulbs is that they come in many different colors of light.
- Brighter than halogen, but less bright than HID
- More color options than halogen or HID, option for strobe lighting
- Less energy consumption than halogen
- Longer lasting than halogen
- Smaller, easier to fit shape than HID
- No ballast required
- May require resistors to avoid a “bulb out” error on dash
- Light does not project as far
When to Pick HID over LED?
LEDs are cheaper, smaller, don’t need a special ballast or projector lens, and have more color options, which makes them the ideal choice for replacing smaller bulbs like turn signals, reverse lights, or reverse lights…but for lights that you need a longer field of vision, like your headlights, fog lights, or a separate spot light (i.e. on a roof or separate light rail) HIDs are the way to go. Automakers are now making LEDs that work well as a main headlight beam or fog light beam, but that technology is very expensive and requires special wiring and headlight lenses that can’t be easily retrofitted, so for now this technology isn’t obtainable unless your car also came with a OEM LED headlight/fog light option.
TL;DR: if it’s a smaller bulb, go LED. If it’s your headlights or fog lights, go for a HID kit. Anything in between, research your options and see what is the most cost-effective.


The included accessory kit provides everything you need to get started. Use with a host device or flip out the optical eyepiece for direct viewing. Capture resolution and exposure can be changed with a few clicks, and video or time-lapse modes allow for continuous observation of a subject. Multiple viewing options unlike a standard compound microscope that can only view thin slides, this inverted microscope design can fit larger subjects like metallurgical samples and petri dish cultures.
Common uses include classroom exploration, observing plant and animal cells, fiber analysis, and surface inspection. Placing microscopic objects in just the right spot can be difficult, but the postion adjustment knobs make it easy to set the stage for seeing small things in a big way. Illuminate your subject includes built-in LEDs above and below the stage that can be set to a range of brightness levels to properly illuminate your subject.
Useful and fun for students, scientists, collectors, testers, and anyone interested in exploring the microscopic world. Inverted microscope with optics below stage allows for larger objects such as petri dish cultures or metallurgical samples to be viewed. Flip the switch left or right to quickly adjust the brightness level, or press it in to toggle between the top and bottom LEDs.
Transmit light through translucent samples using the top LED with single lens condenser, or reflect light off opaque subjects with the bottom LEDs. Built-in dimmable leD illumination above and below the stage for both reflected and transmitted lighting modes.
AmScope BS-72P-100S-22 72 Pieces of Pre-Cleaned Blank Microscope Slides and 100 Pieces of 22x22mm Square Coverslips Cover Glass
The dimensions of the slide are 1" x 3" 25. 4x76. 2mm with ground edges. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0006" 22x22x013mm. They are brand new in factory-sealed box. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips.
Dimensions of slides: 1" x 3" x 004" 25. 4x76. 2x1mm. 72 piece pre-cleaned blank clear slides, dimensions of slides: 1" x 3" x 004" 25. 4x76. 2x1mm. The cover slips are 7/8 x 7/8" 22x22mm and 0006" 013-017mm in thickness. Features & specifications: Quantity: 72 blank slides and 100 coverslips. This is a package of 72pc pre-cleaned blank microscope glass slides with ground edges plus 100 piece 22x22mm square glass cover slips.
Material: optical glass. Dimensions of cover Slips: 7/8 x 7/8 x 0
AmScope M150C-I 40X-1000X All-Metal Optical Glass Lenses Cordless LED Student Biological Compound Microscope
AmScope PS25 Prepared Microscope Slide Set for Basic Biological Science Education, 25 Slides, Includes Fitted Wooden Case
AmScope SP-14 Microscope Slide Preparation Kit Including Stains
AmScope PS25W Prepared Microscope Slide Set for Basic Biological Science Education, 25 Slides, Includes Fitted Wooden Case
AmScope ML-A-A Microscope Immersion Oil, 1/4 Oz
The Ultimate Guide to Your Microscope
AmScope Optical Glass Lens All-Metal LED Compound Microscope, 6 Settings 40x-1000x, Portable AC or Battery Power
AmScope BS-C12 Microscope Slides Single Depression Concave Pack of 12
Innovating Science Bacteria Stain Chemicals Set
AmScope PS100A Prepared Microscope Slide Set for Basic Biological Science Education, 100 Slides, Set A, Includes Fitted Wooden Case
Carson MicroBrite Plus 60x-120x Power LED Lighted Pocket Microscope MM-300
Powerfully illuminated, crisp MagnificationThe LED illumination and internal aspheric lens system will ensure users a clear, bright and crisp image. Microbrite plus 60x -120x power led lighted pocket Microscope MM-300 The MicroBrite plus is an extremely powerful, compact and lightweight portable microscope.
Please contact Carson for additional warranty details. Ground edges. Carson will repair or replace your pocket microscope if it is found to have manufacturing defects in materials or workmanship. The variety of uses is endless it is the perfect tool to introduce young children to the joys of science or even for advanced users to enjoy microscopic viewing power on the move.
Compact, Lightweight and Portable Design. Material: optical glass. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips. Uses 1 aa battery not included | Not Recommended To Be Used In Conjunction With Eyeglasses. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0
006" 22x22x013mm. The microbrite plus is powered by 1 AA battery not included.
VIVOSUN 6.5" Gardening Hand Pruner Pruning Shear with Straight Stainless Steel Blades Orange
Carson MicroBrite 20x-40x LED Lighted Pocket Microscope for Learning, Education and Exploring (MM-24, MM-24MU)
Carson LumiLoupe 10X Power Stand Magnifier (LL-10)
Plugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand for Windows, Mac, Linux (2MP, 250x Magnification)
Growsun 2ft 8 Layer Black Mesh Hanging Herb Drying Rack Dry Net
30X 60X Illuminated Jewelers Eye Loupe Magnifier Magnifying with LED Lighting, Unique 2 Lens Design
Aomekie Universal Clip LED Zoom 60X-100X Pocket Microscope Magnifier for Cellphone UV Currency Detectting Biology Jewelry Appraisal Microscope
Ipomelo 2ft 6 Layer Clip On Collapsible Mesh Hanging Hydroponic Drying Dry Rack Net Heavy Duty Steel Rings Hanging Dryer Net Detachable Each Layer For Flower And Plants
Carson BugLoupe 4.5x Magnifier (HU-55)
VIVOSUN Gardening Hand Pruner Pruning Shear with Titanium Coated Curved Precision Blades (Curved Blade)
Plugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand for Windows, Mac, Linux 2MP, 250x Magnification
Product dimensions lxwxh: 1. 2 inch x 2. 25 inch x 3. 5 inch | backed by Carson's Limited Lifetime Warranty. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips. Flexible arm stand with observation pad includes graduated marks for easy measurement.
Optional software for Windows and OS X adds additional features. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0006" 22x22x013mm. 60x-120x power Pocket Microscope. Useful and fun for students, collectors, testers, and anyone interested in exploring the microscopic world.2. 0 megapixels, up to 250x magnification Note: Final magnification corresponds to monitor size.
No ios Support. Material: optical glass. Uses 1 aa battery not included | Not Recommended To Be Used In Conjunction With Eyeglasses. Native osx support using PhotoBooth in 105 or above, third party support in older versions. Uses a webcam chipset and sensor to support nearly any operating system using standard webcam software.
Carson MicroBrite Plus 60x-120x Power LED Lighted Pocket Microscope (MM-300)
Celestron 5 MP Handheld Digital Microscope Pro
Jiusion 40 to 1000x Magnification Endoscope, 2MP 8 LED USB 2.0 Digital Microscope, Mini Camera with OTG Adapter and Metal Stand, Compatible with Mac Window 7 8 10 Android Linux
Carson eFlex 75x/300x Effective Magnification (Based on a 21" monitor) LED Lighted USB Digital Microscope with Flexible Stand and Base (MM-840)
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Cherrypickers' Guide to Rare die Varieties of United States Coins, Volume II
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10/100Mbps WDM Media Converter with 1-Port PoE
Converts the data between fiber (optical signal) and copper (electric signal).
Extends fiber distance up to 20 km.
The 802.3af PoE output makes remote camera deployment easier and more convenient.
WDM (Wave Division Multiplexing) technology enables to transmit and receive data over one single fiber strand instead of two.
Wide operating temperature (0–50C) with reliability.
Auto-negotiation of Half-Duplex/Full-Duplex transfer mode.
What This Product Does
TL-FC111PB-20 is a 10/100 Mbps media converter with 802.3af PoE output, providing 1× 10/100 Mbps PoE RJ45 port and 1× 100 Mbps SC fiber port, which can convert between electrical and optical signals. With up to 20 km fiber transmission distance and 802.3af PoE output, the media converter is designed to address the needs of flexible long-range surveillance deployment with optical fibers. It provides an economical path towards extending the distance of an existing network.
How This Product Works
TL-FC111PB-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC111PB-20 transmits data at 1310 nm wavelength and receives data at 1550 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC111PB-20 should send data at a wavelength of 1550 nm and receive data at a wavelength of 1310 nm. TP-Link another media converter TL-FC111A-20 is one of the products that can cooperate with TL-FC111PB-20.
Besides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.
WDM Media Converter
Complies with 802.3u 10/100Base-TX, 100Base-FX standards
Auto-negotiation of Half-Duplex/Full-Duplex transfer mode
Adopts WDM technology, transmitting and receiving data on one single fiber
Extends fiber distance up to 20km
Supports 802.3af PoE Output, Max 15.4W
1 x SC fiber optic
1 x PoE RJ45
Standards and Protocols
IEEE802.3, IEEE802.3i, IEEE802.3u
1310nm Tx/1550nm Rx
Network Media 100BASE-TX
2-pair UTP/STP of Cat. 5 or above (<100 m)
PWR, Link/Act, PoE
94.5 x 73.0 x 27.0 mm
48 V/0.5 A
Operating Temperature: 0C~50C (32F~122F)
Storage Temperature: -40C~70C (-40F~158F)
Operating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing
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Want to know when TP-LINK (TL-FC111PB-20) 10/100 Mbps WDM Media Converter with 1-Port PoE, up to 20km, 802.3u 10/100Base-TX, 100Base-FX, Single-Mode, Half-Duplex/Full-Duplex drops below a certain price? Enter your email address and price below and we'll let you know when it drops below that price!
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Eye Surgery has become a mainstream technique of vision correction, and this article will explain the benefits and also downsides of 3 various methods being provided to the medical consumer.
Lasik Eye Surgery
LASIK is the phrase for Laser-Assisted Sitting Keratomileusis as well as is an eye medical system which permanently deals with vision by getting rid of a slim layer of the cornea. This treatment works best on patients with modest to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) as well as astigmatism connected with nearsightedness, as well as that have thick corneas. It is the most popular surgical vision correction technique.
People with typical eye sight see things clearly due to the fact that images are brought right into a right prime focus by the cornea and lens of the eye. Ideally, the cornea's curvature is evenly matched to its length in a regular eye. Individuals with astigmatism, nearsightedness or hyperopia have irregularly formed corneas, so the things seen are not focused appropriately. LASIK modifications corneal shape by precise elimination of corneal tissue, and by doing so deals with the eyes' concentrating power.
There are, however, risks to LASIK eye surgical procedure.
There is a remote opportunity of complete loss of vision. If this happens, it is generally since the client had a pre-existing problem which must have precluded the surgical procedure in the first place, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. Individuals with large students are also inadequate candidates for LASIK. Dry eye disorder will certainly be intensified by this treatment.
A few people complain that they completely see "ghost" images, have obscured vision, decreased comparison and poor evening vision. When LASIK was first introduced, 5% of individuals had post-operative grievances; nevertheless, improvements in the procedure have triggered this price to go down to less than 1% if LASIK is done by proficient specialists as well as individuals are effectively screened prior to surgery. If issues do occur, they can typically be resoved by a retreatment.
FDA has actually accepted LASIK laser eye surgical procedure because 1998. While there are a lot of pleased clients, there are nevertheless no long term research studies regarding its impacts. Recognize the restrictions as well as the risks of LASIK eye surgery prior to you sigh for the treatment.
Though less well known, these small implants could enhance vision in clients with mild to moderate nearsightedness without the danger of irreversible eye damages intrinsic in the cells elimination strategy of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter form. Though slightly much less exact compared to LASIK, they are removeable as well as replaceable, so if the client has an unforeseen over- or under-correction, the implant can be removed as well as another of a various dimension put to obtain the preferred adjustment. The implants lie beside the cornea, so the main aesthetic location is entirely undamaged and undamaged, and also the stamina of the cornea is undiminished, making it a much better option for pilots as well as those that engage in contact sporting activities where eye injury is a possibility.
Intacs disagree for serious nearsightedness and more than minor astigmatism (1.00 diopters), as the cornea could just be extended thus far. If the Intacs are gotten rid of, vision returns to its preoperative degree. Aside from vision modification, Intacs are also utilized to treat keratoconus.
Intacs are FDA authorized as well as 10 year research studies have actually disclosed no significant problems with Intacs and few client issues; nonetheless, since the procedure takes extra training compared to LASIK, there are less eye surgical procedure centers providing it. Nevertheless, the Intacs site provides a checklist of practitioners in each state, too a few in Canada, Europe as well as Mexico.
Because lots of people do not want to run the risk of LASIK as well as Intacs could not aid those with extreme vision issues, intraocular lens implants (IOL) are a new alternative authorized by the FDA in 2004 to deal with moderate to extreme nearsightedness. The Craftsmen lens, manufactured by Ophtec, is similar to the type of lens dental implant used to restore vision complying with cataract eye surgical procedure.
The brand-new IOL, called the Craftsmen, is intended for just individuals who have 2.5 diopters or less of astigmatism.
The synthetic lens does not change the all-natural lens, however is placed before it. The main issue found with the implant was the stable loss of endothelial cells in the corneas of people that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are vital in keeping the cornea clear. A three-year research study revealed a continual stable loss see this of endothelial cells of 1.8 percent a year. Now, no one can anticipate whether this loss will certainly continue at the very same More Help rate indefinitely, or perhaps its impact on corneal function.
To lessen lasting results of the device on the corneal endothelium, the FDA is requiring that the brand-new lenses be classified to specify that they must only be dental implanted in patients whose corneal endothelial cells are thick adequate to stand up to small cell loss.
Much more major issues were couple of: retinal detachment (0.6%), cataract advancement (0.6%), as well as corneal swelling (0.4%). The FDA is calling for Ophtec to carry out a five-year follow-up study of its dental implant patients to better evaluate the post-surgical occurrence of cataract development, retinal detachment and also other ocular diseases.
The Craftsmen lens is meant to be a permanent implant.Though it could be eliminated operatively, vision might not always return to just what it was before getting the lens. Due to the fact that it does not influence astigmatism, individuals with this trouble could still require glasses.


Fiber Optic Cables
We manufacture and market a wide variety of high performance standard and custom fiber optic cables for voice, data, and video communications
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Fiber Optic Patch Cables
In addition we supply other premise wiring components, such as:
Copper Patch Cable Assemblies
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Ethernet Crossover Cable Assemblies - Used to cascade switches and hubs
We have high quality requirements and 100% testing of each termination. Please call or request a quote for standard or custom fiber optic cables. Our facility features state-of-the-art equipment to
design and fabricate cables and wire harnesses of many types and standards.
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Value adding services (company uses satellite data to generate products),
Downstream / GIS services (main business not in EO but using satellite data
ReSe Applications Schläpfer is a small Swiss company focused on remote sensing data processing, and specifically on imaging spectroscopy. It was founded in 2000 as a spin-off from the Remote Sensing Laboratories (RSL) of the University of Zurich. The company is owned and run by Dr. Daniel Schläpfer. The major goal is the development and distribution of imaging spectroscopy and remote sensing software. The company expertise is in geometric and atmospheric modeling of radiation in optical remote sensing, as well as the preprocessing of optical remote sensing data. One ground breaking development of ReSe is the PARGE orthorectification software for airborne optical scanner systems. Furthermore, the company successfully advanced the development of the original ATCOR atmospheric correction software packages in close collaboration with the inventor, Dr. Rolf Richter, from DLR. Finally, ReSe is redistributor of the MODTRAN-4 and MODTRAN-5 radiative transfer cod as part of the MODO software.


Many early scientists, even Isaac Newton, wrestled with the problem of atmospheric distortion; but the real advances didn’t begin until the 1970s. That’s when the Pentagon was working on something seemingly unrelated to astronomy; it needed a way to focus a laser beam on a distant target, which meant protecting the beam from choppy wind. At the same time, the Defense Advanced Research Project Agency (DARPA), an agency within the Department of Defense, wanted to identify satellites launched by the Soviet Union.
Even at a good location, atmospheric turbulence smears out details smaller than 1 arcsecond across. That’s good enough to see the cylinder-shaped Hubble telescope, which is similar in size to most spy satellites, but not good enough to make out details. The military needed a way to do better.
If scientists could accurately measure how the atmosphere is moving, they could send that information along to a flexible secondary (or tertiary) mirror. In principle, this deform able mirror would exactly cancel distortions introduced by the atmosphere into the primary mirror’s image, sculpting the rays of light (from a satellite or any other target) back to near-perfect alignment.
One of the first AO demonstrations was installed in 1980 on DARPA’s telescope in Maui. Today the technology has advanced an amazing amount.
Compensating for the atmosphere is no easy task. The simplest method calls for a star in the field of view, which would look like a small point if its light could travel undisturbed to the telescope. The atmosphere introduces an extra blur. So keeping a telescope eye on the star gives a measure of atmospheric turbulence.
The figure above shows how adaptive optics (AO) works. As starlight shines through Earth’s atmosphere, turbulent air distorts is wavefront. A blurry image results. In a laser guide-star AO system, a sodium laser shoots up to the mesosphere, scattering among the sodium atoms there to create what appears to be a bright yellow star. Computer algorithms measure this artificial star’s wavefront, which is similarly jangled by the time it reaches the ground. The computer then deforms a flexible mirror to return both wavefronts to their undisturbed forms.
Obviously vital in astronomy, this technology is absolutely essential in contemporary intelligence work.
 See Shannon Hall, “Untwinkling the Stars,” Sky and Telescope (131, 5, May 2016, pp. 30-36)


Recently, Osram has launched a new generation of Oslon Square Hyper Red high-efficiency horticultural lighting LEDs, dedicated to providing growers with customized lighting solutions, saving planting space and energy consumption while making plants more productive, significantly improving production efficiency and performance. Far more than similar products on the market.
The world’s population has grown rapidly in recent years, with metropolitan areas in particular attracting more and more residents. In such places where arable land is limited but timely distribution is necessary, horticultural lighting has significant advantages. Advanced lighting technology can create a specific lighting environment and provide an ideal light source that can promote plant growth, or cultivate plants with certain characteristics. During the dark season, many people experience the effects of insufficient light, and with the shortening of sunshine hours, people are more prone to fatigue and burnout. The same is true for plants – if they don’t get enough light, they can’t photosynthesize efficiently. The growth of plants mainly requires red light (wavelength 640 to 700nm) and blue light (wavelength 400 to 490nm). Among them, red light can increase the output of plant biomass.
Plant lighting can provide supplemental lighting for areas that lack natural light.
Osram has expanded its LED product range for horticultural lighting with the new generation of Oslon Square ultra-red light.
The new generation of Oslon Square ultra-red light with a wavelength of 660nm is the flagship model of Osram Opto Semiconductors’ full range of horticultural lighting products. In addition to the excellent luminous efficacy value, the new generation of Oslon Square ultra-red light can obtain a radiant flux of 1.030mW at a light conversion rate of 73%, and a current of 700 mA, and the efficiency is as high as 5.0μmol/J. The luminous flux of 7 μmol/s enables greenhouse operators to obtain higher yields. In applications with higher efficiency requirements, the LED can achieve a conversion rate of 78% at a drive current of 350 mA, and a conversion rate of 80% at 250 mA, with an efficiency of 4.6 μmol/J. In addition to top efficiency values, the new generation of Oslon Square ultra-red light has a long service life of more than 100,000 hours and can withstand high temperature environments. This surface-mountable part also features a ceramic package and a solid silicone lens.
Yong Sheng Chew, Product Manager at Osram Opto Semiconductors, said: “The horticultural lighting market is booming, and by continuously optimizing and offering newer products, we have maintained a leading position in this market. The significant increase in efficiency values will effectively help customers save energy. The latest Oslon Square Ultra Red LEDs feature a compact 3.0mm x 3.0mm design size, allowing greenhouse owners to easily retrofit existing lighting systems.”
Osram’s horticultural lighting technology not only helps growers produce fresh, pesticide-free food in small spaces, but also provides consumers living in cities with faster access to fresh and healthy food.


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The best way to understand how motion detection works is to first look at how a camera functions. Inside every camera is the image sensor which the lens of the camera directs light to. The moment light reaches the image sensor, pixels then record how much light they receive. These dark and light areas then form the video images that we see. Motion detection works by comparing successive video images. So if the pattern of light changes between frames a change in pixels the smart camera concludes that something has moved and starts to record. As it begins to record, it also sends you an alert. The camera determines when enough has changed based on the motion detection settings see below. There are different methods of motion detection, i. e. infrared heat vision and microwave.
Private security as it is known in its current conception in the U.
wireless alarm systems for homes
enterprise wide security.


Armasight’s by FLIR extra long-range infrared illuminators provide greater, image-intensified viewing capabilities for operations in little to no ambient light.
Infrared illuminators are used in areas where the level of natural light is not sufficient. An IR illuminator provides near-infrared light, which, although invisible to the naked eye, can greatly enhance the performance of Night Vision devices. The illuminator features adjustments for field-of-view divergence and output power. Armasight by FLIR long-range IR illuminators significantly extend the capabilities of Night Vision weapon sights and observation devices.
The powerful XLR-IR850 model comes standard equipped with a rechargeable battery and charger unit. An Optional A-Focal Doubler for XLR-IR850 doubles the distance of IR beam for ultra long-distance observation.
Our infrared illuminators provide wide-range beam angle adjustment, which drastically improves the performance of the IR illuminator and extends the user’s nighttime visibility range.
Аccessory kit consists of XLR-IR850 Detachable X-Long Range Infrared Illuminator, Rechargeable Battery, and Charger.
The HD DVR is a high-performance, high-definition digital video recorder (DVR). It adjusts for H.264 video compression, single channel resolution up to 720*576, 30fps, and is areal-time, easily-operated, professional DVR that consumes minimal power. It includes powerup recording functionality as well as motion detection and manual recording options. The SD card holds up to 32 GB expandable, and is enabled or direct TV, monitor, and PC playback using an SD card reader.
The HD DVR is lightweight but durable and robust. the DVR has a 1/4”-20 thread that allows you to mount it anywhere.
HD-DVR Kit Includes:
High-performance, high-definition digital video recorder (DVR). It adjusts for MPEG-4 video compression, single channel resolution up to D1(704*576), 30fps, and is a real-time, easily-operated, professional DVR that consumes minimal power. It includes power-up recording functionality as well as motion detection, scheduled, and manual recording options. The SD card holds up to 32GB expandable, and is enabled or direct TV, monitor, and PC playback using an SD card reader. The Recorder DT is lightweight but durable, robust, and designed to fit any Armasight by FLIR Digital or Thermal scope, Picatinny MIL-STD-1913, or Weaver rail. The rubber mount ensures quick, easy and reliable mounting and disassembly.
Quick detachable, multiple eye relief mounting base that attaches to weaver type rail and flat-top receivers.


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Silicon Photonics for Solid-State LiDAR and Beyond
By enabling the integration of millions of micro-scale optical components on compact millimeter-scale computer chips, silicon photonics is positioned to enable next-generation optical technologies that facilitate revolutionary advances for numerous fields spanning science and engineering. An emerging class of silicon photonic systems is integrated optical phased arrays (OPAs), which enable manipulation and dynamic control of free-space light in a compact formfactor, at low costs, and in a non-mechanical way. In this talk, I will highlight our work on developing novel OPA-based platforms, devices, and systems that enable chip-based solutions to high-impact problems, with a focus on solid-state LiDAR sensors for autonomous systems.


Under certain conditions, the scattering light has the properties of stimulated emission and is coherent radiation, which is called stimulated Raman scattering effect (SRS). Barium nitrate crystals are one of the most excellent solid-state materials with stimulated Raman scattering effect, and the frequency of pumped lasers can be transformed into many different spectral ranges.
Barium nitrate crystals, as Raman frequency shift components, can efficiently convert Nd: YAG lasers 1.318-1. The output of 338μm is converted to 1.535-1.556μm beam, the Output light field uniformity is better than the pump light and the peak width becomes narrower. 1.535-1. The 556μm wavelength is the air window, and the human eye is safe, it is very suitable for the LiDAR of the range finder, and it is also the excellent functional material of optical fiber communication and space free communication.
Main use: Barium nitrate crystals have an important use in health care, but also a kind of excellent Raman conversion material, and also a good functional material for optical fiber optics communication and space free communication.


PRESS RELEASE FROM NATURE PHOTONICS
This press release is copyrighted to Nature Photonics.
A PDF of the paper mentioned on this release can be found in the relevant journal’s section of http://press.nature.com. Press contacts for the Nature journals are listed at the end of this release.
PLEASE CITE Nature PHOTONICS AND THE Nature PHOTONICS WEBSITE AS THE SOURCE OF THE FOLLOWING ITEM. IF PUBLISHING ONLINE, PLEASE CARRY A HYPERLINK TO www.nature.com/nphoton
 Caged light
Light likes to keep on moving no matter what. But researchers have built an optical cage that can temporarily catch light and release it again, they report in the January issue of Nature Photonics. The development is an important step towards solid-state optical memory devices that may ultimately play a crucial role in ultra-fast optical communication networks or optical computers.
Takasumi Tanabe and colleagues use a photonic crystal – a piece of silicon riddled with tiny holes – to create an optical cavity that can store light particles for more than a billionth of a second. This may not seem very long, but the beauty of these structures is in their size. Photonic crystals are man-made structures that can control the flow of light on the very smallest length scale possible – down to the wavelength of the waves. The team’s cavity is less than ten millionths of a metre long and made from silicon, which means that it could be integrated into miniature optical chips that can process light in the way microelectronics processes electrons.
The temporary storage effect means that light travelling through the cage is effectively slowed down to a speed of just 5.8 km per second, 50,000 times slower than in a vacuum. This is the slowest speed ever measured in an insulator material.
Takasumi Tanabe (NTT Basic Research Laboratories, Kanagawa, Japan)
Tel: +81 46 240 4825; E-mail: [email protected]
 Optical buffer on a silicon chip
By exploiting state of the art semiconductor manufacturing technology, scientists have created an optical buffer memory on a miniature silicon chip. The device – a kind of temporary storage area for light signals that works by slowing them down – is described in the January issue of Nature Photonics. Once optimized, it could help future optical networks to synchronize different data streams without needing to convert the signals into the electronic domain.
The optical buffer is made by connecting together a string of up to 100 tiny silicon ring waveguides – tiny oval racetracks with a perimeter of just 55 micrometres. By experimenting with various designs, Yurii Vlasov and colleagues have shown that it is possible to create a buffer with a total footprint of less than 0.1mm squared that is able store up to 10 bits of information at data-rates of up to 20Gbit per second.
Although silicon ring waveguides have been reported before, Vlasov’s team is the first to show that it is possible to make a device from such a large number of rings, and to test its compatibility with real data at gigabit speeds. Although further work is needed to reduce the losses and increase the delay/storage time of the buffer, the work is an important demonstration of the future potential of nanophotonics.
Yurii Vlasov (IBM Thomas J Watson Research Center, Yorktown Heights, NY, USA)
Tel: +1 914 945 2028; E-mail: [email protected]
 Blue microdisk lasers hit room temperature
Very small and efficient sources of blue laser light could now be on the horizon thanks to the demonstration of the first gallium nitride (GaN) microdisk laser to offer continuous operation at room temperature. In the January issue of Nature Photonics Adele Tamboli and colleagues reveal how they attain the lasing with blue (428nm) light at a threshold of 300 Watts per square centimetre – several orders of magnitude lower than previously reported devices. Until now, GaN microdisks have been limited to pulsed operation or have required cooling to low temperatures.
Microdisk lasers are attractive future sources of light because they are potentially very efficient, small and emit from their top surface rather than the side. With their knowledge that small, smooth microdisks should offer ultra low thresholds, the researchers fabricated microdisks with a diameter of 1.2 micrometres using photoelectrochemical etching, and used electron beam lithography to create very smooth sidewalls.
The development is a step towards the realization of tiny, efficient sources of blue light that could perhaps one day act as an alternative to the conventional edge-emitting semiconductor lasers found in CD and DVD players. But before this can happen, a scheme for directly electrically powering the lasers needs to be found as they currently need another laser as a pump source to power themselves.
Adele Tamboli (University of California, Santa Barbara, CA, USA)
Tel: +1 805 448 7560 or +1 805 893 4875; E-mail: [email protected]
Additional contact for comment on paper:
Shuji Nakamura (University of California, Santa Barbara, CA, USA)
Tel: +1 805 893 5552; E-mail: [email protected]
 Optical devices lose their sensitive side
Truly useful optical devices built onto microchips are a step closer to becoming a reality, thanks to the work of Tymon Barwicz and colleagues. In the inaugural issue of Nature Photonics, the team describes a way of producing tiny optical devices that process incoming light correctly even if it has a randomly-oriented electric field. They achieve this despite the fact that the individual components making up the device are very picky about the field orientation.
Most devices that control light inside microscopic spaces are, unfortunately, extremely sensitive to the orientation of the light. This limits the usefulness of the technology. Barwicz and co-workers overcome this sensitivity with the aid of a clever miniature photonic circuit. Their circuit splits a light beam into its two constituent perpendicular orientations, rotates one orientation, and recombines the beams after forcing them to pass through identical optical devices. Essentially by aligning the orientation of both beams within the circuit, the initial direction of the field becomes irrelevant and the sensitivity no longer matters.
For the trick to work, Barwicz and co-workers had to design intricate splitters and rotator components and make use of advance manufacturing techniques. By overcoming this barrier, they move us along the path to optical devices that can be integrated onto tiny chips in a big way.
Tymon Barwicz (IBM Thomas J Watson Research Center, Yorktown Heights, NY, USA)
Tel: +1 914 945 3454; E-mail: [email protected]
 Follow the light
Mapping the orientation of light fields on a microscopic scale is shown to be possible for the first time in the first issue of Nature Photonics. Light is made up of fields with a direction as well as an intensity. Most optical probes measure only the strength of the field. But Kwang Geol Lee and colleagues have built a microscope that allows the direction of the electric field to be captured down to a nanometre scale.
Their device contains a nano-sized gold particle attached to the tip of a glass fibre. By scanning the tip along the surface of an object and capturing light that is scattered off the nanoparticle, they can create an image of the sample and uncover features smaller than the wavelength of the light. Lee and co-workers insert a polarizer just in front of the imaging camera that allows them to identify the components of the electric field.
This new way of ‘seeing’ light tells us how light behaves near very tiny objects. It could help in the design of miniature optical components, or lead to new biosensors, where light interacts with biological molecules in different ways depending on the orientation of the electric field.
DaiSik Kim (Seoul National University, Korea)
Tel: +82 2880 8174; E-mail: [email protected]
Ruth Francis, Nature London
Tel: +44 20 7843 4562; E-mail [email protected]
Katherine Anderson, Nature London
Tel: +44 20 7843 4502; E-mail: [email protected]
For media inquiries relating to editorial content/policy for Nature Photonics, please contact the journal directly:
Oliver Graydon Nature Photonics (Tokyo)
Tel: +81 332 678 776; Email: [email protected]
About Nature Publishing Group
Nature Publishing Group (NPG) is a division of Macmillan Publishers Ltd, dedicated to serving the academic, professional scientific and medical communities. NPG's flagship title, Nature, was first published in 1869. Other publications include Nature research journals, Nature Reviews, Nature Clinical Practice and a range of prestigious academic journals including society-owned publications. NPG also provides news content through [email protected] and scientific career information through Naturejobs.
NPG is a global company with headquarters in London and offices in New York, San Francisco, Washington DC, Boston, Tokyo, Paris, Munich, Hong Kong, Melbourne, Delhi, Mexico City and Basingstoke. For more information, please go to www.nature.com


Longridge 800S Laser Distance Finder Only £159.00
Longridge 800S Laser
The Longridge 800-S Laser Distance Finder is the latest in a range of premium distance measurers, allowing you to gain the accurate distance of any object or location within 800 meters.
- Use the one touch scan function to pan the landscape while viewing a continually updated distance with the through-the lens LCD distance display.
- The 6x magnification allows you to accurate pin point the object you want to scan, with eye-piece focussing to ensure a crisp image.
- The Range Finder is adapted with the latest digital circuit design and optical system that is superior to other models in lens quality and reliability.
- The Longridge 800-S is suitable for a range of outdoor activities, including golf, hunting, hiking surveying and sailing.
- One touch scan allows you to pan across the landscape while viewing a continually updated distance.
- Size: H13.9cm, W17.3cm, D6.6cm.
- Manufacturer’s 2 year guarantee.


1. Product Name:
Non-Contact Forehead And Ear Infrared Thermometer
2. Product Description:
(1) This infrared thermometer is used for measuring the temperature of the object's surface, which is applicable for various hot, hazardous or hard-toreach objects without contact safely and quickly.
(2) This unit consist of Optics, Temperature Sensor Signal amplifier, Processing circuit and LCD Display. The Optics collected the infrared energy emitted by object and focus onto the Sensor. Then the sensor translates the energy into an electricity signal.This signal will be turned out to be digital shown on the LCD after the signal amplifier and processing circuit.
|Measurement Range||Body mode:32~42.5°C(89.6°F~108.5°F) Surface mode:0°C~100°C(32°F~212°F)|


We have invested in an advanced DeMeet 400 optical measuring device.
If there are requirements for documentation of measurement tolerances, then we have our own optical measuring machine that can handle the task.
With this device we can provide proven quality products that require very fine tolerances. We can deliver and document the tolerances that fit your task.
The resolution of the DeMeet 400 is: 0.5 μm (0.0005 mm) and the maximum format is: 400x250 mm (XY)


The software is mainly used to control the laser light switch of the machine and display related product information.
1. Fix the display abnormality of Dobiy series laser instrument.
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Sarid D., Challener W.A., Modern Introduction to Surface Plasmons Theory, Mathematica Modeling, and Applications, 1st ed., Cambridge University Press, New York, 122-125, 2010.
 Kabashin A.V., Patskovsky S., Grigorenko A.N, Phase and amplitude sensitivities in surface plasmon resonance bio and chemical sensing, Optics Express, 17, 21191-21204, 2009.
 Wu C., Jian Z., Joe S., Chang L., High-sensitivity sensor based on surface plasmon resonance and heterodyne interferometry, Sensors and Actuators B: Chemical, 92, 133-136, 2003.
 Kabashin A.V., Kochergin V.E., Beloglazov A.A., Nikitin P.I., Phase-polarisation contrast for surface plasmon resonance biosensors, Biosensors and Bioelectronics, 13, 1263–1269, 1998.
 Naraoka R., Kajikawa K., Phase detection of surface plasmon resonance using rotating analyzer method, Sensors and Actuators B, 107, 952–956, 2005.
 Su D.C., Chiu M.H., Chen C.D., Simple two-frequency laser, Precision Engineering, 18, 161–163, 1996.
 Kuo W.K., Chang C.H., Phase detection sensitivity enhancement of surface plasmon resonance sensor in a heterodyne interferometer system, Applied Optics, 50, 1345–1349, 2011.
 Hsieh M., Liao C., Lin J., Optical relative humidity sensor based on a polyvinyl alcohol film and a phase-enhancement total-internal-reflection heterodyne interferometer, Sensors and Actuators A: Physical, 316, 112412, 2020.
 Wu C.M., Pao M.C., Sensitivity-tunable optical sensors based on surface plasmon resonance and phase detection, Optics Express, 12, 3509-3514, 2004.
 Lee .J.Y., Mai L.W., Hsu C.C., Sung Y.Y., Enhanced sensitivity to surface plasmon resonance phase in wavelength-modulated heterodyne interferometry, Optics Communication, 289 ,28–32, 2013.
 Aref S.H., Mahjor F., Phase shift mesurement in surface plasmon resonance sensor by the common-path polarization heterodyne interferometer, J. Res. Many. Sys., 8, 121-127, 2018. (in Persian)
 Aref S.H., SPR phase sensitivity enhancement in common-path polarization heterodyne interferometer by polarization tuning, Optik, 156, 619-627, 2018.
 Fallah N., Aref S.H., Increasing the phase sensitivity of the surface plasmon resonance in common-path interferometry, 26th Iranian conference on optics and photonics and 12th Iranian conference on engineering photonics, Kharazmi University, Karaj, 4-5 February 2020. (in Persian)
 Peyghambarian, N., Koch, S.W., Mysyrowicz, A., Introduction to Semiconductor Optics (Prentice Hall Series in Solid State Physical Electronics), 1st ed., Pearson College Div., 72-80, 1993.
 Gwon H.R., Lee S.H., Spectral and angular responses of surface plasmon resonance based on the Kretschmann prism configuration, Materials transactions, 51, 1150-1155, 2010.
 Wang S.F., Chiu M.H., Lai C.W., Chang R.S., High-sensitivity small-angle sensor based on surface plasmon resonance technology and heterodyne interferometry, Applied Optics, 45, 6702-6707, 2006.


Two cameras launch this month, each offering a completely polarised view of what a camera can be.
The Impossible Project, the company responsible for saving Polaroid’s Type 600 instant film format, will release its first instant camera on May 10th. The I-1 can handle Polaroid film, but also offers a host of advanced features, such as full manual control through its bluetooth-enabled companion app. It joins the Instant Lab smartphone Polaroid printer released in 2013. Both devices aim to re-emphasise the immediacy and physicality of film photography.
In contrast, the newly launched Lytro Cinema captures as much detail of a scene as possible, enabling users to change the fundamental makeup of video footage long after it has been taken. Lytro’s light field technology captures a huge, 3D picture of the scene, running at 755 RAW megapixels at up to 300 frames every second. With the resulting depth information, it’s easy for filmmakers to change the focus, composition, or backgrounds of the scene.
Jimmy Irwin, MB Senior Motion Designer, thinks the Lytro “could change everything. Lytro’s previous light field stills cameras have been an interesting development, but when applied to moving image, this technology really comes into its own. Previously, footage has always been a two-dimensional medium, so when combined with computer generated imagery, concessions had to be made. This new camera will open up new ways for footage to be combined with CGI, further blurring the line between what is captured in camera, and what is created digitally.”
Although the Lytro Cinema isn’t available to buy yet, rental packages start at a cool $125,000.
This originally appeared in Moving Brands Wednesday 20160413.
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