算光效率 ,可以尝试使用归一化啊。 T+41,
System Transmittance _FkIg>s
Suppose you need to calculate the system transmittance of an optical system. ._TN;tR~'
You would probably use the grid raytrace option, and the emitted flux is equal to Y=Om0=v
the sum of the flux in all the emitted rays. When you display an irradiance map, a;=IOQ
the system transmittance is equal to the total flux, displayed at the bottom of the Fil6;R
irradiance map window, divided by the emitted flux. To get the system </D )i
transmittance, check the Normalize to emitted flux box and press the Apply Fhga^.5U&
button. The map will be redisplayed, and the Normalized Flux value will be equal ;lf $)3%[
to the system transmittance.