packaging technology
Date:2011-05-20 11:56
Status:Be resolved
Question:admin
ts light on the refractive index and transmission rate. Select a different refractive index of packaging materials, packaging geometry of the photon escape efficiency is different, the angular distribution of luminous intensity and the die structure, light output, encapsulated lens material and the shape used. The use of a tapered resin lens, can focus light to the LED in the axial direction, the corresponding small angle; If the top of the resin lens is round or flat type, the corresponding ang
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