Search results 15219 items matching your search terms. Filter the results Item type Select All/None Page Event GLD Company Folder Collection New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Epistar reaches warm-white light with efficacy of 170 lm/W and CRI of 88 applying several new technologies Located in media Epistar's record breaking 162 lm/W 5000K is achieved by 45mil blue HV-LED. Located in media Sandia researcher Jeff Tsao examines the set-up used to test diode lasers as an alternative to LED lighting. Skeptics felt laser light would be too harsh to be acceptable. Research by Tsao and colleagues suggests the skeptics were wrong. (Photo by Randy Montoya) Located in media In the test setup, similar bowls of fruit were placed in a lightbox with a divider in the middle. In this photo, the bowl on one side was illuminated by a diode laser light and the other was lit by a standard incandescent bulb. The aesthetic quality of diode laser lighting (left bowl) compares favorably with standard incandescent lighting (right). (Photo by Randy Montoya) Located in media Four laser beams — yellow, blue, green and red — converge to produce a pleasantly warm white light. Results suggest that diode-based lighting could be an attractive alternative to increasingly popular LED lighting, themselves an alternative to compact-florescent lights and incandescent bulbs. (Photo by Randy Montoya) Located in media technology_light-generation_cnam-lounched-research-project-on-characterization-of-colour-rendering-of-led-light-sources_fig2-jpg Located in media Testboxes for visual measurement with differnt LED light sources. Located in media SEM image of p-type ZnO nanowires created by electrical engineering professor Deli Wang at UC San Diego . Note: the blue color was added in photoshop. Credit: Deli Wang/UCSD Located in media 'Doped' zinc oxide 'phosphor' converts ultraviolet to visible white light. Located in media Dr. Pete Vukusic with Cyphochilus specimens. (Image copyright Pete Vukusic - University of Exeter) Located in media < Previous 10 items 1 ... 1245 1246 1247 1248 1249 1250 1251 ... 1522 Next 10 items > Subscribe to an always-updated RSS feed.
