Request InfoSpectral Evolution Inc.LAWRENCE, Mass., Aug. 20, 2013 — Spectral Evolution’s SR-1100-TE spectroradiometer has a 320- to 1100-nm spectral range designed for radiometric calibration transfer involving satellite sensors and integrated spheres. The device features a 512-element TE-cooled silicon photodiode array with temperature control across a wide range of environments, as well as auto-temperature control at ambient temperatures of 15 to 40 °C. It also offers a minimum scan speed of 100 ms, a spectral resolution of <3.2 nm and a sampling bandwidth of 1.5 nm. The spectroradiometer features diffraction-based optics, auto dark...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra October 2020 IssueFiber Pistol GripsSpectral Evolution Inc. now offers two pistol grip models for use with field portable spectroradiometers. The grips ergonomically hold and accurately aim fibers in remote sensing applications....Photonics.com 4/22/2022Line Scan CameraThe Linea ML 8k line scan camera from Teledyne DALSA extends defect detection both on and under the surface of a wide variety of materials, components, and products. The multispectral device...Photonics Spectra May 2022 IssueOptical Wavelength MetersThe 238 Series Optical Wavelength Meter from Bristol Instruments Inc. features a broad operational range from 700 to 1650 nm. The device is designed for the precise wavelength characterization...Vision Spectra Winter 2020 IssueMultiSensor Vision SystemThe AVX550 Multi-Sensor Vision System from the L.S. Starrett Co. is a large-format, dual optical device with touch-probe capability to measure parts with a diverse range of feature sizes and...ARTICLESPhotonics Spectra November 2020 IssueAll-Glass Fiber Optic Sensor Measures Force on Miniature ObjectsA team of researchers has designed a tiny fiber optic force sensor, approximately equal in diameter to a human hair, capable of measuring extremely slight forces exerted by small objects. The...Vision Spectra Winter 2020 IssueNSF Grant to Advance Sensing and Imaging Technologies for Precision AgricultureWith a five-year, $26 million grant, the National Science Foundation (NSF) has established the Engineering Research Center for the Internet of Things for Precision Agriculture (ERC IoT4Ag). The...Photonics Spectra August 2020 IssueAt 5-Year Mark, AIM Photonics Looks Back on Key Accomplishments, Future GoalsSince 2015, AIM Photonics has been at the forefront of New York’s success in the integrated photonics arena. Over the past five years, AIM has created a photonic integrated chip (PIC)...Photonics Spectra March 2022 IssueCamera the Size of a Gran of Salt Performs Beyond its ScaleResearchers at Princeton University and the University of Washington (UW) designed a nanosize camera, no bigger than a grain of salt, that produces images comparable to those produced by a...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. These articles will provide the tools optics designers need to tailor their designs to the appropriate manufacturing process and to optimize the cost of component fabrication.Aspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...Photonics HandbookSelecting a Photodetector: Using WITS$ as a Rough Guide: Performance of a photodetector with respect to the four basic attributes of light, in addition to cost, can be used to make an appropriate choice.Light is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about...Photonics HandbookLaser Measurement Systems: Best Practices: When purchasing a laser, learning how to apply, troubleshoot, and evaluate that device is very important.Given the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these...Photonics HandbookCamera Resolution: Combining Detector and Optics Performance: Most image-quality discussions center on resolution, which is thought to uniquely determine system performance. Resolution, however, is a more complex concept.Camera resolution depends upon the optical blur diameter and the detector size. Schade combined these to create an equivalent resolution that is a function of Fλ/d where F is the focal ratio,...WHITEPAPERSPhotonics.com 1/14/2021Fractional Pixel Method for Improved Pixel-Level Measurement and Correction (Demura) of High-Resolution DisplaysAs display resolutions increase, imaging systems are challenged to continue to provide accurate pixel-level measurements while applying increasingly limited relative imaging resolution during...Photonics.com 1/14/2021Five Signs that a Photometry-Based Imaging System is the Right Choice for Your Inspection ApplicationPhotometric imaging solutions bridge the gap between machine vision systems and true human vision, offering consistent, quantifiable data for automated processes that matches the visual acuity of...Photonics.com 1/14/2021Methods for Measuring Display Defects and Mura as Correlated to Human Visual PerceptionHuman vision and perception are the ultimate determinants of display quality, however human judgment is variable, making it difficult to define and apply quantitatively in research or production...Photonics.com 1/14/2021Using Imaging Colorimeters to Correct OLED, MicroLED, and Other Emissive Displays for Production Efficiency and YieldsImaging colorimeters can improve OLED and microLED display production by ensuring visual quality of displays — measuring brightness and color uniformity at the pixel and subpixel level to correct...WEBINARSPhotonics.com 8/26/2021Freeform Optics for Imaging: Mid-Spatial Frequency ErrorsPart 3 of the 2021 Freeform Optics Series Residual mid-spatial frequency (MSF) surface errors are common byproducts of the computer-controlled subaperture manufacturing techniques needed for...Photonics.com 6/11/2019From Lensless Cameras to Deep-Brain Microscopy: Exploring the Potential of Computational ImagingThis webinar will introduce you to the enormous potential of computational imaging for a range of industries, from manufacturing to machine vision to biophotonics. Professor Rajesh Menon and his...Photonics.com 7/7/2020Radiometric Accuracy and Commercial UAVs: A Clash of Cultures?While the explosion in the commercial drone industry has benefited a wide variety of applications including crop mapping and farmland surveying, the delivery to the farmer of accurate radiometric...Photonics.com 1/11/2022Computer-Generated Hologram Metrology Alignment: Challenges and SolutionsComputer Generated Hologram (CGH) metrology has several benefits, such as 1/100th wave accuracy and snapshot measurement time. However, alignment of aspheric and freeform parts in CGH setups can be...PHOTONICS DICTIONARY+ TERMSEDU.photonics.com 9/8/2009diffractive opticsOptical elements that use diffraction to control wavefronts. Diffractive optical elements include diffraction gratings, surface-relief diffractive lenses, holographic optical elements and...EDU.photonics.com 3/24/2016binary opticsOptical elements, often created by micromachining, lithography or vacuum deposition, that rely on diffraction of the collected energy as opposed to the more common refracting or reflecting optics....EDU.photonics.com 3/5/2018normalized frequencyAlso referred to as the V number in fiber optics; the normalized frequency is a dimensionless quantity, denoted by the symbol V, given by: where a is waveguide core radius, l is wavelength in vacuum,...EDU.photonics.com 9/8/2009attenuation-limited powerIn fiber optics, the limitation on performance imposed by the amplitude of a received signal rather than distortion.VIDEOSPhotonics.com 2/21/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 7/2/2018Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.com 1/18/2018Light Matters Extra: Taking Photonics Innovations from the Lab to the Operating Room - 01.2018In this month's Light Matters Extra, we give you an in-depth look at the relationship between researchers and scientists at the University of California Davis, and surgeons and clinicians at nearby...Photonics.com 10/1/2018Penn's Agarwal Group Focuses on Light-Matter Interactions for Optoelectronic DevicesThe Agarwal Group at the University of Pennsylvania's Department of Materials Science and Engineering focuses on understanding how light interacts with small scale nanostructures. They also work to...PHOTONICS BUYERS' GUIDE CATEGORIESDiffractive LensesDiffractive lenses are any optical device that utilizes diffraction in an image-forming capability. Familiar diffractive lenses are zone plates, holographic lenses, kinoform lenses and binary optics.Power MetersBinary OpticsBinary optics are optical elements, often created by micromachining, lithography or vacuum deposition, that rely on diffraction of the collected energy as opposed to the more common refracting or...Diffraction GratingsA diffraction grating is a glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light...COMPANIESPhotonics Buyers' GuideReynard CorporationReynard Corporation has been a premier supplier of custom optics and thin-film coatings to a global customer base since 1984. Reynard focuses on manufacturing the highest quality products with...Photonics Buyers' GuideAdmesy BVMEASURING COLOUR IN A WORLD OF LIGHT! Admesy offers a broad range of test and measurement instruments focused on colour and light measurements in inline production process environments. All...Photonics Buyers' GuideBoston Electronics CorporationWe specialize in products related to photodetection, especially, including Detectors, Sources, and Signal Processing Electronics. Photodetectors for the IR, UV, THz, and visible Light...Photonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...