算光效率 ,可以尝试使用归一化啊。 wz>[CXpi_
System Transmittance
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Suppose you need to calculate the system transmittance of an optical system. W3jwc{lj
You would probably use the grid raytrace option, and the emitted flux is equal to R>B6@|}?
the sum of the flux in all the emitted rays. When you display an irradiance map, \027>~u
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the system transmittance is equal to the total flux, displayed at the bottom of the i,wZNX
irradiance map window, divided by the emitted flux. To get the system 5?m4B:W
transmittance, check the Normalize to emitted flux box and press the Apply M(vX.kF
button. The map will be redisplayed, and the Normalized Flux value will be equal gYBMi)`RT
to the system transmittance.