"Quantum dots have shown up in an LED lighting product before — in strings of colored Christmas lights launched last year by QD Vision competitor Evident Technologies Inc. of Troy, N.Y...
...The magic of quantum dots is that the color they emit can be controlled very accurately by adjusting their size"
By PETER SVENSSON
'NEW YORK (AP) — Light-emitting diodes are prime candidates for replacing inefficient incandescent bulbs...
"On Tuesday, two small companies showed off an LED lamp that's both very power-efficient and produces a light similar to that of a standard tungsten or halogen bulb.
"The LEDs in the lamp shine through a thin layer of "quantum dots," ... When light hits them, they emit light of a different color... ...The magic of quantum dots is that the color they emit can be controlled very accurately by adjusting their size...
"The dots are so small that more than 10,000 of them could be could be lined up over the width of a human hair.
"The Quantum Light lamp is made by Nexxus Lighting Inc. of Charlotte, N.C...
The more pleasing light produced by quantum dots could allow LEDs to outshine compact fluorescent bulbs...
"A hundred years, incandescents have been around. That's what people want," Blackley said.
"...Nexxus says the lamps last up to 25 times longer than halogen alternatives.
"The layer of quantum dots in the lamp are the first commercial product of QD Vision Inc., a Massachusetts Institute of Technology spinoff based in Watertown, Mass. It hopes to spread their use to many other applications, including TV backlights...."
