GRENOBLE, France, Feb. 11, 2019 — CEA-Leti, a French research institute for electronics and information technologies, has developed a novel retinal-projection concept for augmented reality (AR) uses based on a combination of integrated optics and holography. The lens-free optical system uses disruptive technologies to overcome the limitations of existing AR glasses such as limited field-of-view and bulky optical systems. In typical AR glasses, images are transmitted close to the eyes by a microdisplay that includes an optical system and an optical combiner. The microdisplays create a small near-to-eye image, which is...Read full articleRelated content from Photonics MediaARTICLESLens-Free, Multicolor Holography Technique Could Enable Compact 3D DisplaysA holography technique based on computer-generated holograms (CHGs), developed by a team at Duke University, produces complex, multicolor holographic images without any bulky optical components. The...Photonics.com 1/28/2019Smart Glasses Provide Customized Assistance Based on Worker and TaskAn intelligent, assistive audiovisual system is being designed that will provide help to workers in manufacturing and logistics via a visual display with spoken instructions. The system comprises...Photonics.com 8/8/2019Sailors Use Augmented Reality to Train for CombatAn augmented reality (AR) environment is being tested as a training tool for sailors and marines who must train and remain proficient while at sea. The Tactically Reconfigurable Artificial Combat...Photonics.com 7/26/2019Optogenetics Drives Structural Changes in Embryo Tissue DevelopmentScientists at the European Molecular Biology Laboratory (EMBL) used optogenetics to drive structural changes in tissue development in Drosophila (fruit fly) embryos. 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The headset leverages...Photonics.com 3/11/2020Global 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 IssuePHOTONICS HANDBOOK ARTICLESDigital 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 HandbookFluorescence Lifetime Imaging: Choosing the Best Approach: Fluorescence lifetime imaging microscopy (FLIM), which measures the spatial distribution of the fluorescence decay, can be achieved either in the time or in the frequency domain. Each approach exhibits advantages and disadvantages, depending on the type of light detector and acquisition method employed.The term fluorescence is often applied as a synonym for photoluminescence, although luminescence actually covers fluorescence and phosphorescence. Both of these terms describe the process of...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 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. 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Forbes describes a “freeform” surface with orthogonal polynomial...Photonics.com 8/1/2019Automated Solutions for SAE Standard HUD MeasurementHead-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate augmented projections for visual...Photonics.com 9/1/2019UV Bandpass Filters for SterilizationUV light at 222 nm is capable of sterilization without harming human skin, making it a safe and effective technology to combat bacteria and viruses, including COVID-19. Optical filters can be...Photonics.com 6/19/2020Cassegrain Telescope with Fold MirrorThe following document will cover the analysis of a Cassegrain Telescope system. 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Also on this...Photonics.com 4/7/2017Light Matters Extra: Lightning Awards Luminate Rochester - 11/2017In this month's Light Matters Extra, we give you an in-depth look at the recent Luminate Lightning Awards. New York’s Lieutenant Governor Kathy Hochul was there and tells us why Luminate is important...Photonics.com 11/17/2017Binding 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 CATEGORIESComputer Graphics Equipment and SystemsReflective/Micromirror DisplaysUltraviolet LensesUltraviolet lenses are lens intended for use with wavelengths shorter than about 380 nm. It must be made of quartz, calcium fluoride, lithium fluoride or some other material transparent to...Linear ArraysA linear array is a solid-state video detector consisting of a single row of light-sensitive semiconductor devices, used in linear-array cameras.COMPANIESII-VI Aerospace & Defense Inc.As a vertically integrated provider, II-VI Aerospace & Defense is uniquely positioned to meet the critical and complex design, engineering and production requirements of customers in the...Photonics Buyers' GuideA.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' 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