Greg Hollows, Edmund Industrial Optics Inc.There are many things to consider from an optical perspective when designing the illumination for a machine vision system. Some are as simple as the use of low-cost optical filters to increase contrast or to reduce unwanted lighting effects (Figure 1). Others stem from radiometer principles related...Read full articleRelated content from Photonics MediaARTICLESCustom Optical Coatings for Cinema, Avionics, and LIGOCommercial off-the-shelf (COTS) optical components such as filters, beamsplitters, prisms, and mirrors are used in numerous applications, including machine vision, microscopy, and optical test and...Photonics Spectra May 2019 IssueBetter Filters Yield Better Sensor PerformanceFrom weather satellites to lidar for self-driving cars, precision optical filters play a vital role in making sensors work. Today, the ability to interrogate more and more sections of spectrum...Photonics Spectra August 2018 IssueAdvancements in Raman Spectroscopy Find Real-World Uses in the Life SciencesSince its development in the mid-1920s, Raman spectroscopy has been used to study various low-frequency vibrational modes in molecular systems. In contrast to its counterpart — Fourier...BioPhotonics January 2019 IssueLuminate NY Names Double Helix Top Winner of Competition's First RoundDouble Helix Optics was named the overall winner in the first round of the Luminate NY competition. The Boulder, Colo.-based company will receive $1 million in follow-on funding from New York state...BioPhotonics Jul/Aug 2018 IssuePRODUCTSRadiometerThe hand-held X1-1 radiometer with RW-3704-4 detector from Gigahertz-Optik Inc. is an LED device that measures irradiance from 0.001 µW/cm² to 10 W/cm² at 850 nm. The...Photonics.com 3/25/2019Machine Vision SystemThe CV-X 300 machine vision system series from KEYENCE Corp. of America was developed for a manufacturing setting to detect defects, chips, or dents, locate parts, and inspect the correct assembly....Photonics.com 5/7/2019Global Shutter SensorThe backside-illuminated, global shutter OG01A image sensor from OmniVision Technologies Inc. features a 2.2-μm pixel size and combines PureCel Plus-S pixel technology with Nyxel NIR technology to...Vision Spectra Winter 2019 IssueOptical Filters for Point of Care ApplicationsPhysically small custom optical filters. Delta Optical Thin Film can deliver physically small custom optical filters for research, clinical, and PoC fluorescence-based instruments in high volumes at...Promoted Content June 2019 IssuePHOTONICS HANDBOOK ARTICLESOptical System Optimization: Analyzing the Effects of Stray Light: Stray light can impede the performance of any optical system. With a deeper understanding of stray light, and the right tools, optical engineers can predict and compensate for its effects in order to improve quality.Electrical engineers are very familiar with the effects of shot noise, thermal noise, flicker noise and crosstalk, and recognize how these effects can reduce the signal-to-noise ratio (SNR) in their...Photonics HandbookPolarization-Based Imaging: Basics and Benefits: With spatial correction, line scan polarization cameras detect birefringence, stress, surface roughness, and physical properties that cannot be detected with conventional imaging.There are three fundamental properties of light: intensity, wavelength, and polarization. Almost all cameras today are designed for monochrome or color imaging. A monochrome camera is used to measure...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 HandbookQuantifying Light: Intensity, Uniformity Hold the Key: When an application requires an illumination source, the designer can provide an optimal solution if the application’s attributes are described in light intensity and uniformity values at the field of interest.Intensity and uniformity can be described using different physical attributes, which makes interpreting requirements somewhat confusing. This article intends to provide an explanation and serve as a...Photonics HandbookWHITEPAPERSWorking in the Basement: Measuring Signals Below the Noise Floor with a Lock-In AmplifierMeasuring optical signals in the femtowatt (10-15) to nanowatt (10-9) range can be a daunting task. Signal levels this low are lost in typical detector noise levels and swamped by background light....Photonics.com 1/26/2018What is a Color Filter?Broadband filters are used to improve the contrast and performance of optical scanners with red, yellow, and amber led displays. Medium density three-slot filters and polarizers enhance the contrast...Photonics.com 9/30/2019Using Lighting To Optimize Camera PerformanceA rule of thumb in imaging is that there can never be too much light. A common problem is finding enough light to clearly image a subject. Utilizing light sources in an efficient and deliberate...Photonics.com 9/1/2019Tolerancing and its Role in Illumination and Nonsequential Optical DesignTolerancing is a subject that is often overlooked, or not fully addressed, in the design of illumination and nonsequential optical systems. Tolerancing methods are well developed and understood in...Photonics.com 8/1/2019WEBINARSGoing the Extra Mile with Contrast Optimization: A Practical Comparison of Micro-Imaging System OptimizationDesigning micro-imaging systems commonly used in robotic surgery and precision small-scale imaging used in the defense, industrial, and commercial industries requires calculation of the modulation...Photonics.com 3/28/2019Filters: The Key to Image Quality in Modern Vision ApplicationsYour goal is simple: Acquire a clear, high-resolution, glare-free image — all while keeping costs down and ensuring that the process is repeatable. Does that sound difficult? Or even...Photonics.com 12/4/2019High-End Asphere Design for ManufacturabilityIn this webinar, Edmund Optics’ asphere experts will discuss the benefits of using aspheres in optical system design and the factors to take into account during the design process. You will...Photonics.com 8/28/2019Light Advances in BiomedicinePost-webinar notes Additional questions and answers Q: Have you tried using solid state Si APD or SiPM instead of PMT in your CD Radiometer or two photon spectroscopy? A: No, used S-...Photonics.com 4/9/2014PHOTONICS DICTIONARY TERMSradiometerA device used to measure the intensity of radiant energy.EDU.photonics.com 9/8/2009Nichols radiometerAn instrument devised by Nichols and Hull for use in the measurement of radiation pressure. The device has two small silvered, glass mirrors that are suspended, in the way of a torsion balance, by a...EDU.photonics.com 9/8/2009Angstrom modeAn operational mode for radiometers that analogs the method of operation of an angstrom pyrheliometer. In this mode, the rearward-facing cavity is electrically heated, while the forward cavity is...EDU.photonics.com 9/8/2009scanning spectroradiometerA spectroradiometer having a means to scan different regions of the light spectrum, providing simultaneous representations of amplitude vs. wavelength of the spectrum.EDU.photonics.com 9/8/2009MEDIAAbout AlluxaGet a tour of our factory and the inside scoop on everything Alluxa has to offer.Photonics.com 9/30/2019A Virtual Tour of Andover Corporation, Salem NHAndover’s state-of-the-art facility houses custom-designed, internally-built, automated coating chambers. With in-house fabrication and polishing departments, quality is controlled from the very...Photonics.com 7/25/2019Light 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 7/2/2018Binding Light in Optics and Photonics - LIGHT MATTERS 11.2017Tune into this month's edition of Light Matters for 'Part 1' of an exclusive interview with SPIE CEO, Eugene Arthurs, as he speaks about his upcoming retirement. We’ll also take you to Rochester,...Photonics.com 11/17/2017PHOTONICS BUYERS' GUIDE CATEGORIESPyroelectric RadiometersPower MetersPhotometers/RadiometersSolar RadiometersA solar radiometer is a measurement radiant engergy, sun, solar equipment, sunlight, sun light, light measurement, intensity, radiant energy, solar radiationCOMPANIESAdmesy 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' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideBeijing Golden Way Scientific Co. Ltd.Beijing Golden Way Scientific provides high precision optical components manufacturing, utilizing optical processing facilities from raw material cutting, grinding, and polishing to final coating and...Photonics Buyers' GuideLabsphere Inc.For nearly forty years, Labsphere has developed test and measurement solutions for a wide variety of photometry applications. Integrating Spheres & Components Allows users to build their...Photonics Buyers' Guide