算光效率 ，可以尝试使用归一化啊。 1RQM-0W,
System Transmittance M|z4Dy
Suppose you need to calculate the system transmittance of an optical system. A:sP%c;
You would probably use the grid raytrace option, and the emitted flux is equal to ,tFLx#e#
the sum of the flux in all the emitted rays. When you display an irradiance map, N':d
T
the system transmittance is equal to the total flux, displayed at the bottom of the %`dVX
EO
irradiance map window, divided by the emitted flux. To get the system uhmSp+%
transmittance, check the Normalize to emitted flux box and press the Apply >Cr 'dKZ}
button. The map will be redisplayed, and the Normalized Flux value will be equal Z=s]@r
to the system transmittance.
