LED internal quantum efficiency and electro-optical efficiency principle and calculation
Date:2011-11-29 17:29
Status:Close
Question:ningcuidi
nto the air, it is clear that in the case of a spherical, 8.27% range can only launch this perspective, it is clear that internal quantum efficiency is very low.
For LED chips, of course, it's a hexahedron, is not a point light source, excluding electrode block light, the hexahedron of the six faces can have a light critical angle, a total of 49.6% out of the light area. In fact, LED due to the superior reason leads to electrodes, fixed in the lead-frame and done less than six faces to shi
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