算光效率 ,可以尝试使用归一化啊。 8_}t,BC
System Transmittance or*{P=m+R
Suppose you need to calculate the system transmittance of an optical system. a]r+np]vTy
You would probably use the grid raytrace option, and the emitted flux is equal to s6~;)(r
the sum of the flux in all the emitted rays. When you display an irradiance map, f- XUto
the system transmittance is equal to the total flux, displayed at the bottom of the &b|RoPV
irradiance map window, divided by the emitted flux. To get the system Odo)h
transmittance, check the Normalize to emitted flux box and press the Apply ?SNacN@r
button. The map will be redisplayed, and the Normalized Flux value will be equal <W#G)c0
to the system transmittance.