| lightgirl |
2008-10-24 10:03 |
算光效率 ,可以尝试使用归一化啊。 WQKj]:qk0 System Transmittance d)KF3oA Suppose you need to calculate the system transmittance of an optical system. HJ@5B" You would probably use the grid raytrace option, and the emitted flux is equal to VMHC/jlX@r the sum of the flux in all the emitted rays. When you display an irradiance map, I%xn,u the system transmittance is equal to the total flux, displayed at the bottom of the :-Wv>V\t irradiance map window, divided by the emitted flux. To get the system '{VM>Q transmittance, check the Normalize to emitted flux box and press the Apply /80YZ button. The map will be redisplayed, and the Normalized Flux value will be equal fA^SD"xf to the system transmittance.
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