Sensors & Detectors
SENSORS & DETECTORS CASE STUDIES AND WHITE PAPERS
SENSORS & DETECTORS PRODUCTS
The Ophir® L40(500)A-LP2-DIF-35 is a compact, high damage threshold laser power/energy sensor capable of measuring up to 4kW without the need for water cooling. The Ophir® L40(500)A-LP2-DIF-35 can measure CW lasers up to 500W and pulsed lasers up to 2kJ. The compact design makes it easy to place between optical components when troubleshooting a beam path. The sensor can handle large, unfocused beams of 35mm diameter, as well as narrow, high density beams down to 1mm @ 1kW.
The Ophir® L2000W-PF-120 is a water-cooled Laser Power/Energy Sensor designed for measuring large pulsed lasers. This thermal sensor measures powers from 1 W to 200 W and energies form 6 J to 6000 J over the spectral range of 0.3 µm to 2.2 µm. The sensor features a large 120 m aperture to accommodate for high energy densities and short pulses.
Canon’s 35MMFHDXSB sensors are designed with deeper wells, resulting in an almost 45% increase in quantum efficiency (QE) at 800 nm verses the standard 19 µm pixel size sensor. Featuring 19µm pixel sizes available in monochrome (35MMFHDXSBM) or with a specialized RGB-NIR color filter array (35MMFHDXSBI), these CMOS sensors allow for expanded possibilities in a wide range of applications.
Canon’s 2U250MRXSAA CMOS sensor offers 250 MP resolution capable of capturing detail 125 times greater than in full HD resolution at a fast frame rate of 5 FPS. This APS-H format sensor leverages a square pixel arrangement of 1.5 µm x 1.5 µm pixels with progressive reading of 1.5 µm pixels across 16 digital output channels to handle the enormous amount of image data created by roughly 250 million effective pixels.
SENSORS & DETECTORS VIDEOS
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![Achieving HD, Full Color Video In Low Light]( "Achieving HD, Full Color Video In Low Light")
Achieving HD, Full Color Video In Low LightOn the last day of SPIE’s 2016 DCS exhibition in Baltimore, Kevin Fogarty with Canon showed us a 19 micron pixel pitch sensor that can achieve a full color and high definition image in extremely low light environments.
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![How To Specify Optical Coatings For Sensor Applications]( "How To Specify Optical Coatings For Sensor Applications")
How To Specify Optical Coatings For Sensor ApplicationsThis year at SPIE’s DCS exhibition, Donna with DSI gave us a quick on-location hello from the show floor before turning it over to principle investigator Kevin Gibbons so that he could offer some advice on what you should consider before determining an optical coating’s specifications for sensing applications.
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![Multi-Spectral Imaging And Sensing]( "Multi-Spectral Imaging And Sensing")
Multi-Spectral Imaging And SensingMarco Snikkers wrapped up our Photonics West 2016 coverage by introducing us to a pixel sensor that acts as an 8-channel spectrometer for biomedical, fluorescence marking, and colorimeter applications, as well as a multi-spectral camera that can monitor specific wavelengths in real-time.
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![Lowering Dark Current, Defects, And Bad Pixel Counts In Imaging Detectors]( "Lowering Dark Current, Defects, And Bad Pixel Counts In Imaging Detectors")
Lowering Dark Current, Defects, And Bad Pixel Counts In Imaging DetectorsSensors Unlimited — UTC Aerospace Systems cut the ribbon on their new facility on September 17th, 2014. Doug Malchow spent a few minutes with us explaining how the move to a bigger and better place has already resulted in better quality imaging detectors with lower defects, lower bad pixel counts, and much lower dark current.
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![dss14-hamamatsu_450x300.jpg]( "Sensors For A Diverse Range Of Applications")
Sensors For A Diverse Range Of ApplicationsJeff Eng, applications engineer with Hamamatsu, shows us a MEMS FTIR engine for IR spectroscopy instruments that works in applications involving gas sensing, materials analysis, and point of care devices. He also introduces us to 2D InGaAs image sensors for thermal imaging monitors, NIR image detection, and foreign object detection; compact radiation detectors; and more.
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![dss14-excelitas_450x300.jpg]( "12 Micron Camera Core And Silicon PIN Quadrant Detector For Sensing Applications")
12 Micron Camera Core And Silicon PIN Quadrant Detector For Sensing ApplicationsExcelitas and Qioptiq have joined together to provide custom optics manufacturing and a wide array of sensor offerings for various applications.
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![pw14-optodiode.jpg]( "New Detector For Beam Position Monitoring, UV Scanners, And Inspection Tools")
New Detector For Beam Position Monitoring, UV Scanners, And Inspection ToolsOpto Diode’s national sales manager Stan Duda kept us up to date on some new developments at Opto Diode. Watch the video to learn more about a new EUV compatible position sensing detector covering the 0.1 nm to 400 nm spectral range.
SENSORS / DETECTORS ABOUT DOCUMENT
LIGHT SENSORS & DETECTORS
A light sensor is a device senses or detects light. Various available kinds of light sensors and detectors function in different ways to give required results.
Active pixel sensors which are image sensors comprises of an integrated circuit with a number of pixel sensors. Each individual pixel has a light sensor as well as an active amplifier.
Charge-coupled devices (CCD)
These are applied in recording of images in astronomy, digital cinematography and digital photography.
Chemical detectors
A silver halide molecule is split into an atom of metallic silver and a halogen atom; the photographic developer causes adjacent molecules to split similarly. An example is a photographic plate.
Cryogenic detectors
They are sensitive enough to measure and determine the energy of single x-ray, visible and infrared photons.
Optical detectors
They are normally quantum devices where individual photons produces a discrete effect when exposed to light. This makes Optical detectors to behave like thermometers by responding solely to the heating effect of the incoming radiation.
Photo resistors or Light Dependent Resistors (LDR)
They change resistance according to light intensity. The light then can be measured or determined by measuring the resistance.
Photovoltaic cells or solar cells
When Illuminated they produce a voltage and supply an electric current. Which means the level of illumination is directly dependent on the amount of light being supplied.
Photomultiplier tubes
They contain a photocathode that emits electrons when illuminated. A chain of diodes then can be used to amplify the electrons.
Photo tubes
These contain a photo cathode which when illuminated emit electrons making the tube to conduct an electric current that is proportional to the light intensity.
Proximity Sensors
Has two photodiode arrays which convert light into current; one photodiode array responds to ambient light and the other responds only to infrared light; when joined with an infrared LED, this second LED array can operate as a proximity sensor.
Ambient Light Sensing Application
Ambient light sensors are incorporated in various laptops as well as cell phones to detect the lighting in the surrounding environment and appropriately adjust the backlight of the screen.