An innovative ultrathin lens could lead to more affordable IR thermal imaging cameras. The 1-mm-thick silicon Fresnel lens was developed by researchers from the French aerospace lab Onera, French thermal imaging sensor company ULIS, the Optical Institute and the French National Center for Scientific Research. A picture taken with the new camera. The system can detect people and some details of a setting, in this case an office. Images courtesy of Optics Letters. Silicon is less expensive than materials traditionally used in IR cameras such as germanium and chalcogenide, and...Read full articleRelated content from Photonics MediaARTICLESNew Lens Could Provide Thermal Imaging Capabilities in More Compact CameraUniversity of Utah researchers have developed a new kind of flat optical lens that is much thinner and lighter than conventional camera lenses. While conventional lenses for smartphone cameras are a...Photonics Spectra December 2019 Issue3D-Printed Microlenses Correct Color Distortions in Small-Scale ImagesResearchers from the University of Stuttgart used a 3D-printing process called two-photon lithography to make highly precise lenses that are just a few micrometers in size and that reduce chromatic...Photonics Spectra August 2021 IssueClassical Optics Offers Solution to Non-line-of-sight ImagingUniversity of Wisconsin-Madison researchers have demonstrated non-line-of-sight (NLOS) imaging by using a method that applies the same math that is used to interpret images taken with conventional...Vision Spectra Winter 2019 IssueSilicon CCD Camera Peers into Mid-InfraredResearchers at the University of California, Irvine used the nonlinear optical properties of the silicon (Si) chip in a Si-based camera to enable a mid-infrared (MIR)-specific response in the camera....Photonics Spectra October 2020 IssuePRODUCTSMultispectral 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 IssueIR Zoom LensesThe StingRay Optics NightCrawlIR™ lens series from Gooch & Housego PLC are IR zoom lenses designed for aerospace, defense, and border security in the MWIR imaging space. The...Photonics.com 5/3/2021Machine Vision LensesThe Xenon-Jade series of lenses from Jos. Schneider Optische Werke GmbH (Schneider-Kreuznach) is designed for 1.2-in. sensors. The five lenses feature speeds of f/2.8 and focal lengths of 12,...Photonics.com 6/24/2021Hyperspectral Video CameraThe ULTRIS Q20 hyperspectral video camera from Sphere Optics GmbH is based on light field technology. The camera features an ultra-HD CMOS sensor with 20 MP. During image acquisition, the...BioPhotonics Jan/Feb 2020 IssuePHOTONICS HANDBOOK ARTICLESCamera Resolution: Combining Detector and Optics Performance: Most image-quality discussions center on resolution, which is thought to uniquely determine system performance. 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You will...Photonics.com 8/28/2019Techniques in Biophotonic ImagingFREE WEBINAR Sponsored by: Hamamatsu & Applied Scientific Instrumentation Additional Questions & Answers from the webinar are below: Dr. Kimani C. Toussaint Jr. Quantitative...Photonics.com 3/21/2013PHOTONICS DICTIONARY TERMSFresnel lensA lens resembling a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical....EDU.photonics.com 7/14/2014himawariA system of Japanese origin that utilizes Fresnel lenses and a fiber optic network to transmit sunlight to otherwise inaccessible areas.EDU.photonics.com 9/8/2009overhead projectorA projector used to project transparencies. A horizontal 8 x 10-in. stage for writing or laying down preformed transparencies is provided with either an elliptical mirror or a plastic Fresnel lens...EDU.photonics.com 9/8/2009field lens1. A lens situated at or near the plane of an internal image to project the aperture of a previous objective or erector upon the aperture of a following lens. 2. A lens at or near the plane of a...EDU.photonics.com 9/8/2009MEDIAPhotonics 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 2/21/2018Light Matters Extra: Weird and Strange: Quantum Photonics - 03.2018In this month's Light Matters Extra, we take you to the Quantum Photonics Laboratory at MIT run by Dr. Dirk Englund. Dr. Englund's group, the Quantum Photonics Group, is made up of postdocs and...Photonics.com 3/29/2018Fundamentally Different Photonics - LIGHT MATTERS 03.2018On this month's episode of Light Matters, we take you to the South by Southwest (SXSW) Trade Show in Austin, Texas, as new photonics innovations hit the show floor of the Austin Convention Center....Photonics.com 3/29/2018Capasso Group Revolutionizes Flat LensesResearchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed a single flat lens that can focus the entire visible spectrum of light in the same spot and in...Photonics.com 7/5/2018PHOTONICS BUYERS' GUIDE CATEGORIESFresnel LensesFresnel lenses are lenses resembling a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and...Detector ChipsCID Image SensorsOptical MaterialsOptical materials are materials that, by virtue of their optical characteristics, are used in optical elements.COMPANIESA.R.W. Optical CorporationARW Optical is your reliable manufacturer of quality optics and coatings. Beamsplitters • Prototyping through volume-production quantities • High-performance and durable optical...Photonics Buyers' GuideFresnel Technologies Inc.Fresnel Technologies Inc. is an expert manufacturer of molded plastic optics, including Fresnel lenses and related optical components, as well as infrared transmitting materials and optics made from...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,...Photonics Buyers' GuideOhara Corporation, Western OfficeOhara manufactures precision optical glasses: strip/slab, cut/molded blanks, pressings, high homogeneity blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic...Photonics Buyers' Guide