算光效率 ,可以尝试使用归一化啊。 `Nn?G
System Transmittance K="+2]{I
Suppose you need to calculate the system transmittance of an optical system. *QG;KJ%
You would probably use the grid raytrace option, and the emitted flux is equal to A=K1T]o
the sum of the flux in all the emitted rays. When you display an irradiance map, (a?Ip)`I
the system transmittance is equal to the total flux, displayed at the bottom of the je-s%kNlJ
irradiance map window, divided by the emitted flux. To get the system >=H8>X
transmittance, check the Normalize to emitted flux box and press the Apply A3_9MO
button. The map will be redisplayed, and the Normalized Flux value will be equal bRp[N
to the system transmittance.