算光效率 ，可以尝试使用归一化啊。 \q,w)BE
System Transmittance ?,Hk]Rl3
Suppose you need to calculate the system transmittance of an optical system. [2
Rp.?
You would probably use the grid raytrace option, and the emitted flux is equal to JD'/m
h N0
the sum of the flux in all the emitted rays. When you display an irradiance map, d~n+Ds)%F
the system transmittance is equal to the total flux, displayed at the bottom of the !.F\v .
irradiance map window, divided by the emitted flux. To get the system QF^An B
transmittance, check the Normalize to emitted flux box and press the Apply ;ndg,05_
button. The map will be redisplayed, and the Normalized Flux value will be equal Q;Oc#
u
to the system transmittance.
