算光效率 ，可以尝试使用归一化啊。 I4@XOwl{P
System Transmittance rNV3-#kU
Suppose you need to calculate the system transmittance of an optical system. 'EIe5O p
You would probably use the grid raytrace option, and the emitted flux is equal to '/xynk%)xw
the sum of the flux in all the emitted rays. When you display an irradiance map, q~> +x?30
the system transmittance is equal to the total flux, displayed at the bottom of the ]#G s6CsT|
irradiance map window, divided by the emitted flux. To get the system qj~=qV0p
transmittance, check the Normalize to emitted flux box and press the Apply op`9 (=DJ]
button. The map will be redisplayed, and the Normalized Flux value will be equal :8@)W<>%
to the system transmittance.
