The production of high-power white LED
Date:2011-05-21 09:47
Status:Close
Question:admin
s power white LED chip index generally about 3.0, the refractive index of plastic packaging should be selected as the transition value. LED light from the refractive index of about 3.0 to 1 chip fired into the air refractive index, then the middle layer of the refractive index of how much it should be used? In general, the refractive index should be greater than 1.5, so that the optical efficiency will be high.
W-class power white LED from half-intensity angle of light plastic and cover
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