Photonics/Optics

Fabricating Optical Mirrors for Use in Outer Space Measurements

There are many ways to manufacture an optic depending on the complexity of the component and the application. From choosing the best substrate, to detailing the numerous operations required to make the optic, all the while considering tight tolerances and other specifications. This article highlights the precision needed to successfully fabricate the mirrors for the Hobby-Eberly Telescope Dark Energy Experiment’s (HETDEX’s) Visible Integral Field Replicable Unit Spectrographs (VIRUS) unit which was designed to measure dark energy in outer space.

Posted in: Application Briefs, Aerospace, Optics, Measuring Instruments

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Making VR a NASA Reality

NASA researchers want to prove that a virtual reality headset like the Oculus Rift is not just a toy. Josh Kinne, a deputy project manager at NASA Langley Research Center, sees a future role for virtual and augmented reality in the agency’s research and development, CAD design, and data visualization efforts.

Posted in: Application Briefs, Aerospace, Optics, Computer-Aided Design (CAD), Simulation Software

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Choosing the Right Adhesive for Display Bonding

When ambient light hits displays, it causes unwanted reflections, which adversely affects readability. This is a nuisance for users; however, it can be prevented with optical adhesives.

Posted in: Application Briefs, Imaging, Optics, Photonics

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Machine Vision System Measures ‘Drops’ in Citrus Grove Health

A University of Florida Institute of Food and Agricultural Sciences researcher has developed a machine vision system to measure the quantity of a citrus grove’s dropped and decayed oranges. The fallen fruit provides an indication of a so-far incurable disease that has been spreading through Florida’s trees since its first appearance in the state in 2005.

Posted in: Application Briefs, Applications, Imaging, Photonics, Mathematical models, Diseases, Agricultural vehicles and equipment

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Customized Drone Maps Glaciers

Using a custom-designed drone, a researcher from The Ohio State University mapped glaciers and wetlands in Peru’s Cordillera Blanca mountain range. Despite a discovered drop in glacier growth, the findings from the unmanned aerial vehicle (UAV) revealed a slightly more optimistic picture of the region’s water supply, which relies in part on the ice formations.

Posted in: Application Briefs, Applications, Imaging, Photonics, Cartography, Terrain, Water, Unmanned aerial vehicles

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Cambridge Researchers Take Computer Vision for Test Drive

Google's driverless car, like many autonomous vehicles in development, is packed with sensors, radars, lasers, and cameras. To lighten the load of sensing devices in self-driving autos, researchers at Cambridge University have hit the streets with a system that uses only computer vision.

Posted in: Application Briefs, Imaging, Photonics, Computer software and hardware, Imaging and visualization, Autonomous vehicles

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Using Optical Imaging to Combat Counterfeit Components

Counterfeit parts and materials pose a serious threat to the United States defense supply chain. The National Defense Authorization Act (NDAA) of 2012 (Section 818) laid out strict guidelines for DoD prime contractors for detection and avoidance of counterfeit electronic parts1. The Defense Logistics Agency (DLA) identified six federal supply groups in their supply chains that are at high risk for counterfeiting including electrical and electronic components, bearings, hardware and abrasives, pipes and fittings, engine accessories, and vehicle components2. DLA is championing development of anti-counterfeiting technologies that also provide traceability for the parts in its supply chain. A solution called QuanTEK developed by Chromo Logic LLC, involves novel optical imaging methods and has been found to work on a broad class of the DLA identified high-risk federal supply groups.

Posted in: Application Briefs, Imaging, Photonics, Optics, Supply chain management, Counterfeit parts

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