LED Coating Increases Efficiency Tenfold
- added March 4, 2008
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- JordanRoth
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Read about this coating in Wired a while back. It sounds pretty cool.
"The researchers used two different sizes of nanocrystals, which emit particular wavelengths of either green light or red light. The right mix of the two combines with blue light from the base LED to make a warmer white with twice as much red as blue or green.
The final LEDs were also better than commercially available LEDs at creating visible light, giving off more than 300 lumens of visible light for every watt of all light emitted. This figure, known as the 'luminous efficacy', is high compared to typical white LEDs.
Carefully choosing the nanocrystals used tunes the light spectrum emitted towards frequencies that the human eye is most sensitive to. Typical white LEDs are less well matched to human eyes and provide only about 30 to 60 lumens of visible light per watt of light emitted."
If I remember correctly, they were talking about adding the coating to paint as well, so that one could have one light and it would make luminous walls.
"The researchers used two different sizes of nanocrystals, which emit particular wavelengths of either green light or red light. The right mix of the two combines with blue light from the base LED to make a warmer white with twice as much red as blue or green.
The final LEDs were also better than commercially available LEDs at creating visible light, giving off more than 300 lumens of visible light for every watt of all light emitted. This figure, known as the 'luminous efficacy', is high compared to typical white LEDs.
Carefully choosing the nanocrystals used tunes the light spectrum emitted towards frequencies that the human eye is most sensitive to. Typical white LEDs are less well matched to human eyes and provide only about 30 to 60 lumens of visible light per watt of light emitted."
If I remember correctly, they were talking about adding the coating to paint as well, so that one could have one light and it would make luminous walls.
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- JordanRoth
- 6 months ago
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