算光效率 ,可以尝试使用归一化啊。 Jzh_`jW0l
System Transmittance B>gC75
Suppose you need to calculate the system transmittance of an optical system. ,OG sx
You would probably use the grid raytrace option, and the emitted flux is equal to o:m:9dn
the sum of the flux in all the emitted rays. When you display an irradiance map, 'j>Q7M7q{
the system transmittance is equal to the total flux, displayed at the bottom of the GT`:3L
irradiance map window, divided by the emitted flux. To get the system 4uD!-1LT@
transmittance, check the Normalize to emitted flux box and press the Apply XYf;72*
button. The map will be redisplayed, and the Normalized Flux value will be equal Ktg6 *L/
to the system transmittance.