Fight blue light emissions of white LEDs with new colour sensor
LEDs, and especially those that produce white light, are great for lighting applications. They consume little power in comparison to incandescent lightbulbs and it is easy to create nice colour effects with them. To produce white light a white LED often generates blue light and filters it with yellow or orange phosphor. The problem is, however, that blue-light wavelengths appear to have important health effects such as disruption of the circadian rhythm, accelerated eye aging, and eye strain.