and that brighter LED streetlamps may be making the problem worse. The AMA report goes a step further, and pins extra blame on the color of the light. Blue light apparently suppresses the ...
LEDs emitting red light cannot be used for white-light generation using phosphors; instead a short-wavelength ultraviolet, violet or blue LED is required. Early attempts to produce blue-emitting ...
they produce white light. Another method uses a blue LED and yellow or red phosphors. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.
Japanese physicist Isamu Akasaki, co-winner of the Nobel Prize in Physics in 2014 for the development and application of blue light-emitting ... needed for the blue LED. Amano, 60, now a physics ...