Portland, Ore. — Light bulbs create more heat than light. But a professor at Rensselaer Polytechnic Institute (Troy, N.Y.) has invented a 99 percent efficient, omnidirectional reflector that he claims ...

For security surveillance, Osram has developed an infra-red (850nm) LED that does not need secondary optics. Instead it has an intrinsically narrow beam angle. “The Dragon Dome [SFH 4783] is the first ...

First used as status and indicator lamps, and more recently in under-shelf illumination, accent lighting, and directional marking applications, high-brightness LEDs have emerged within the last six ...