In addition to adding another colour to the ‘palate’, blue is key in working within
a matrix of red and green. When combined at various intensities red, green
and blue will produce white or any other colour of light. However, while white
light can be created in this way, coating an ‘InGaN’ blue LED with phosphor
directly produces a white light. The process is called the phosphor down-
conversion method.
10.3.5 Infrared lights
Thermal-imaging technology promises to make night driving less hazardous.
Infrared thermal-imaging systems are going to be tted to cars. The Cadillac
division of General Motors has a system called ‘Night Vision’ ...
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