Oct. 18, 2012 — The site of the now-shuttered Camp Evans, in Wall Township, N.J., has played host to the Ku Klux Klan, former Nazi scientists and Senator Joseph McCarthy, and is said to be among the most haunted in the state. A group called Behind the Wall Paranormal regularly conducts investigations of the site, using a variety of optics-based instruments. I joined them a few weeks ago to see what I could learn. I stood in a darkened room on the second floor of the abandoned dormitory, fumbling with the settings on my camera. Every few seconds the flash from another camera – from somewhere in...Read full articleRelated content from Photonics MediaARTICLESSensor Could Make 3D Holograms a Feature in Mobile DevicesResearchers at the Korea Institute of Science and Technology (KIST) and Yonsei University are laying the groundwork for 3D digital holography on mobile devices. The group designed a photodiode that...Photonics.com 1/17/2022$4.4M Grant to Build Next-Gen Night-Vision TechResearchers at the University of Arkansas received a $4.4 million award from the U.S. Office of Naval Research to develop the next generation of infrared sensors used in night-vision technology. ...Photonics.com 10/21/2021CMOS-Compatible Photodetector Spurs Possibilities in the Extended SWIRHigh-bandwidth germanium-tin (GeSn) photodetectors, developed by a team at Polytechnique Montréal to support CMOS-compatible technologies in the extended shortwave infrared (e-SWIR)...Photonics.com 5/27/2022Thin-Film Design Delivers Night-Vision Prototype Without the BulkAn international team of researchers has developed a technology that allows people to see clearly in the dark. The technology is based on nanoscale crystals and has potential applications in defense...Photonics.com 6/21/2021PRODUCTSMultispectral Ground ObservationThe SPEED-LR smart system from CONTROP Precision Technologies Ltd. is an electro-optical IR defense and homeland security system designed for long-range ground observation. The digital,...Photonics Spectra March 2021 IssueSWIR CameraThe Phoenix HD5 SWIR Camera from Attollo Engineering LLC is an uncooled 1280 × 1024-pixel imager designed for military applications. With a 5-µm pixel pitch to permit more pixels on...Vision Spectra Summer 2022 IssueIR Camera with Microscope OpticsAutomation Technology GmbH has announced an IR camera with microscope optics, providing an alternative to cooled IR cameras. Specially developed for use in nondestructive testing, the device...Photonics Spectra December 2021 IssuePhoton-Counting Sensor and CameraGigajot Technology Inc.’s QIS41 camera, built around the GJ04122 sensor, pairs well with standard 4/3-in. microscopy optics, bringing high resolution and low-light performance to scientific and...Photonics Spectra July 2022 IssuePHOTONICS HANDBOOK ARTICLESImage Intensification: The Technology of Night Vision: Through succeeding generations, image intensifying devices have brought vision to the dark of night.Image intensification, the basis of night vision, is a complex conversion of energy particles that occurs within a vacuum tube. An image-intensifier system works by collecting photons through an...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,...Photonics HandbookDigital Still Cameras: The Changing Face of Imaging: The digital camera reflects a sea change in the compact camera market. While the 20th was the century of film cameras, the 21st belongs to the digital camera.The digital camera represents an integration of optics, mechanics and electronics consisting of three layers (Figures 1a, b and c). The top and the middle layers are printed circuit boards (PCBs),...Photonics HandbookAcousto-Optic Devices: Charts showing the characteristics of acousto-optic scanning devices, acousto-optic figures of merit, and solutions for common problems with acousto-optic processor devices.ACOUSTO-OPTIC SCANNING DEVICES: CHARACTERISTICS MODULATORS Material Bandwidth (MHz) Rise Time (ns) Acousto Input Power (W) (Saturation) Material Wavelength Range...Photonics HandbookWHITEPAPERSFractional 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 1/14/2021Using 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...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 1/14/2021Five 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 1/14/2021WEBINARSColorimetry: A Primer on the Science of Color MeasurementThe human eye is a specially calibrated optical instrument. Our eyes have a unique response to different wavelengths of light — a response that builds our perception of color and influences our...Photonics.com 1/20/2021Light Sources for Stimulated Vibrational MicroscopyAdditional questions and answers: Q: What is the power intensity for the adjusted supercontinuum Stokes laser? A: There are at least two PCF modules commonly used for supercontinuum...Photonics.com 4/22/2014Multi-Line Lasers or Laser Combiners: What Solution Is Best for Fluorescence Imaging?Fluorescence imaging is a key technique in both biomedical research and clinical diagnosis. Fluorescence-based microscopy for high-resolution and high-throughput multifluorophore imaging typically...Photonics.com 6/17/2021Si/SiN-Integrated Photonics for Lidar, Quantum, and SensingThe integrated photonics market is a fast-growing domain whose main drivers are the internet and data centers. Photonics-based transceivers are the backbones of today’s internet connectivity...Photonics.com 1/18/2022PHOTONICS DICTIONARY TERMSrotating mirror scannerDeveloped for use in military reconnaissance systems, it consists of a polygonal mirror, drive motor, interface between motor and mirror, and control electronics. Also used in broadband video...EDU.photonics.com 9/8/2009single-walled carbon nanotubesReferred to as SWCNTs, these cylindrical nanostructures composed of a folded sheet of graphene can be used as near-infrared markers for small animal multiplex imaging. Emitting at different...EDU.photonics.com 11/14/2016dissonanceIn optics, the production of maxima and minima by the superimposition of two sets of interference fringes from light of two different wavelengths.EDU.photonics.com 9/8/2009photoelectron holographyA technique proposed for studying the atomic structure of crystals by measuring the interference pattern generated when the crystal is illuminated by a burst of finely tuned x-rays. The resulting...EDU.photonics.com 9/8/2009MEDIABeacons: Lighting the Skies Over New England - LIGHT MATTERS 06.2017A beacon of light now shines at the highest point in Massachusetts, located in the historic Berkshires — it can be seen from as far as 75 miles away! A city nearby is illuminating these skies,...Photonics.com 6/23/2017OPTIX Capabilities PresentationOPTIX designs, produces, and markets its own series of thermal imaging and night vision devices, day scopes and integrated systems for strategic surveillance and security. Due to the certified...Photonics.com 6/3/2021Thermal Imaging Helps Nab Bomber - LIGHT MATTERS 04.24.2013-Plasmonic Waves -2000 Sun Power -Reading while Running This week on Light Matters: bad guys can run, but they can’t hide from thermal imaging, on-chip optics makes advances, solar dish pulls in the...Photonics.com 4/24/2013Fluorescence Filter Set FITC DAPI - Optolong Optics Co. Ltd.Fluorescence filters like FISH products, single-band filters DAPI, FITC, TRITC, Texas Red, GFP, CFP, Cy5 are the other direction of Optolong. Filters we produce are with the dark background and bight...Photonics.com 4/19/2022PHOTONICS BUYERS' GUIDE CATEGORIESThermal-Infrared CamerasLow-Light-Level OpticsOptical Design and Engineering ServicesNight-Vision Compatible FiltersCOMPANIESKnight OpticalWe are a trusted leading global figure in the production and distribution of scientific, stock and custom precision optics with over 30 years’ experience providing optical solutions for a huge...Photonics Buyers' GuideShanghai Optics Inc.Shanghai Optics is a leading manufacturer of advanced optical components and optical assemblies. Shanghai Optics is an unparalleled custom optical solution provider offering custom optical design and...Photonics 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' GuideMLD Technologies LLCExperts In Thin-film Coating Design We practice a design-before-quote approach to help customers refine specifications and minimize technical risk. We understand how coated optical elements...Photonics Buyers' Guide