LED internal quantum efficiency and electro-optical efficiency principle and calculation
Date:2011-11-29 17:29
Status:Close
Question:ningcuidi
rial 35.02%, that is reflected back to the chip, cannot escape into the air, only 64.98% has the potential to spill over into the air. However, when the glow if a point light source LED, full launch critical half its boundary angle c related to refraction coefficient of the interface of two materials, and is determined by the following formula: c=Arcsin (Ndn1)
For GaAs and air: c=Arcsin (1/3.9) =14.90
Borders launches the critical angle for 29.8 , at which point cannot be fired i
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06/25 17:39