算光效率 ,可以尝试使用归一化啊。 9^igzRn0
System Transmittance U!3nn#!yE
Suppose you need to calculate the system transmittance of an optical system. r\_rnM)_xN
You would probably use the grid raytrace option, and the emitted flux is equal to 8 Sl[&
the sum of the flux in all the emitted rays. When you display an irradiance map, bTO$B2eh|
the system transmittance is equal to the total flux, displayed at the bottom of the pRMM1&H
irradiance map window, divided by the emitted flux. To get the system tSYeZ~
transmittance, check the Normalize to emitted flux box and press the Apply &bBp`h
button. The map will be redisplayed, and the Normalized Flux value will be equal !Z%QD\knY
to the system transmittance.