算光效率 ,可以尝试使用归一化啊。 `U~Y{f_!H
System Transmittance 02_37!\
Suppose you need to calculate the system transmittance of an optical system. vW\|%
@hW,
You would probably use the grid raytrace option, and the emitted flux is equal to 6Eu&%`
the sum of the flux in all the emitted rays. When you display an irradiance map, T -'B-g
the system transmittance is equal to the total flux, displayed at the bottom of the GNv5yWQ@
irradiance map window, divided by the emitted flux. To get the system cdH Ug#
transmittance, check the Normalize to emitted flux box and press the Apply TNvE26.(
button. The map will be redisplayed, and the Normalized Flux value will be equal Aj22t
to the system transmittance.