算光效率 ，可以尝试使用归一化啊。 vG~ +r<:
System Transmittance ^LVk5l)\>g
Suppose you need to calculate the system transmittance of an optical system. 3V}(fnv
You would probably use the grid raytrace option, and the emitted flux is equal to +"8}R~`!
the sum of the flux in all the emitted rays. When you display an irradiance map, V.8%|-d
the system transmittance is equal to the total flux, displayed at the bottom of the %G[/H.7s -
irradiance map window, divided by the emitted flux. To get the system 0Gsu
transmittance, check the Normalize to emitted flux box and press the Apply "]#'QuR
button. The map will be redisplayed, and the Normalized Flux value will be equal BxdX WO
to the system transmittance.
