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Active Layer Optimization in Ultra-Thin, Surface-Parallel, Deformable Mirrors

This method enables low-cost, lightweight, active mirrors with a large dynamic range and improved actuation characteristics. NASA’s Jet Propulsion Laboratory, Pasadena, California A design methodology was developed that optimizes the performance of active mirrors. Patterns of parameterized ellipsoidal actuators are overlaid onto the mirror, and then numerically optimized to improve performance of the mirror in optical modes that are typically difficult to correct, while also improving performance in other optical modes.

Posted in: Articles, Briefs, Tech Briefs, Optics, Photonics

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Monolithic Dual Telescope for Compact Biaxial Lidar

Goddard Space Flight Center, Greenbelt, Maryland A document discusses the Ultra Compact Cloud Physics Lidar, a biaxial lidar with a narrow receiver field of view. It requires tight optical alignment between the transmitter and receiver paths while flying on various aircraft over various temperatures and in the presence of vibration. To achieve optical crossover as close to the lidar as possible, the transmit and receive telescopes must be built very closely to each other.

Posted in: Articles, Briefs, TSP, Tech Briefs, Photonics

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Passive Aerosol Cloud Suite

High-accuracy polarization measurements can be made with high angular density across full images. Goddard Space Flight Center, Greenbelt, Maryland The Passive Aerosol Cloud Suite (PACS) is an imaging polarimeter that employs wide field-of-view (FOV) optics to obtain a highly accurate polarimetric signal across an image with hyperangle, multiangle views. PACS is designed to measure the array of parameters necessary to retrieve aerosol and cloud microphysical characteristics. The final goal of PACS is a flight model able to compete for a position on the Aerosol-Cloud-Ecology (ACE) Decadal Survey mission or other space-based platforms, but adaptations of the basic technology to airborne and ground-based applications are anticipated.

Posted in: Articles, Briefs, TSP, Tech Briefs, Optics, Photonics

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Product of the Month: LED Light Engines for Large FOV Fluorescence Imaging Systems

Innovations in Optics, Inc. (Woburn, MA) offers high power LED Light Engines as excitation illuminators for large field-of-view fluorescent imagers used in life science instruments. LumiBright LE Light Engines feature patented non-imaging optics that direct LED light into a desired cone angle, while producing highly uniform output, both angularly and spatially. The two standard far-field half-angles are 20 and 40 degrees. Available peak LED wavelengths range from 365 nm in the ultraviolet through 970 nm in the near-infrared.

Posted in: Products, Products, LEDs, Photonics

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Low Viscosity, Two Component Epoxy

Master Bond EP112LS is a two-part epoxy that is well suited for impregnation, potting, encapsulation, sealing and coating applications, particularly in the aerospace and optoelectronics industries. EP112LS is optically clear, features reliable non-yellowing properties and has a refractive index of 1.55. This electrically insulative system is resistant to chemicals including water, oils, fuels, acids and bases. EP112LS is serviceable over the temperature range of -60°F to +450°F.

Posted in: Products, Products, Coatings & Adhesives, Photonics

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CCD Image Sensor

The KAI-08051 charge-coupled device (CCD) image sensor from ON Semiconductor (Phoenix, AZ) shares the same advanced 5.5 micron pixel architecture, 8 megapixel resolution, 15 frame per second readout rate, and 4/3 optical format as the existing KAI-08050 Image Sensor, but improves key performance parameters through the use of an improved amplifier design, newly optimized microlens structure, and new color filter pigments in both Bayer and Sparse color configurations.

Posted in: Products, Products, Photonics, Sensors

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Thermal Imaging Core

FLIR Systems, Inc. (Portland, OR) has announced its latest thermal imaging core, Muon™, which is designed specifically for OEMs capable of integrating uncooled FPAs into their own camera solutions. Muon is based on FLIR’s 17μ pitch Vandium Oxide (VOx) 640x512 or 336x256 FPAs and offers frame rates of 9Hz and up to 60Hz. Optimized for size, weight and power (SWaP), Muon has a form factor of 22 mm × 22 mm × 6 mm, a mass of less than 5 grams, and depending on the configuration, uses less than 300mW of power.

Posted in: Products, Products, Photonics

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