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Articles: Materials
The critical angle lens reflector has commercial applications that supersede ordinary mirrored reflectors. The physics of the critical angle lens reflector are based on the optics...
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Briefs: Photonics/Optics
Apparatus and Method for a Light Direction Sensor
This invention, developed at NASA's Goddard Space Flight Center, was originally conceived as a high-accuracy, high-sensitivity, bi-axial Sun angle sensor, but has also been proposed for applications involving the general field of precisely measuring the direction in which light travels toward the...
Briefs: Information Technology
Exploration Visualization Environment
The Exploration Visualization Environment (EVE) is a graphical environment for the visualization, analysis, and simulation of engineering data, specializing in aerospace and aeronautic concepts. EVE is based on the history and successful application of the Synergistic Engineering Environment (SEE) and provides...
Briefs: Lighting
Crystals form the basis for the penetrating icy blue glare of car headlights and now they could be fundamental to the future in solar energy technology?...
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Research News: Lighting
Crash risks while driving at night are higher than during the daytime, but most roadways in the U.S. do not have roadway lighting. In fact, many state and local governments find it...
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Products: Lighting
Littelfuse, Inc. (Chicago, IL) has developed a new line of open LED protectors optimized to provide superior protection against open LEDs. The PLED6M Series LED protector is designed to provide a switching electronic shunt...
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Research News: Lighting
A Rensselaer research team led by Christian Wetzel, a professor of physics, etched a nanoscale pattern at the interface between a light-emitting diode’s (LED) sapphire base and the layer...
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Articles: Lighting Technology
Partly due to rising environmental concerns and the increasing cost of energy, the industrialized world is now replacing billions of conventional incandescent light fixtures. While a significant...
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Articles: Government
It is in the headlines worldwide. Cities, states, and countries around the globe are transitioning away from traditional lighting and towards newer technologies such as high-power LEDs for...
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Application Briefs: Imaging
The U.S. military has employed infrared vision technology for years. But it has only been the past several years that thermal imaging, or infrared, technology has been made commonly...
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Briefs: Physical Sciences
Holographic glass light-shaping diffusers (GLSDs) are optical components for use in special-purpose illumination systems (see figure). When properly positioned with respect to lamps and areas to...
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Briefs: Photonics/Optics
Variable shadow screens have been proposed for reducing the apparent brightnesses of very bright light sources relative to other sources within the fields of view of diverse imaging optical...
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Briefs: Photonics/Optics
Next-generation thermal load sensors, or combo sensors, optimize climate control and lighting in "intelligent automobiles," thereby enhancing the comfort and safety of drivers and passengers....
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