算光效率 ，可以尝试使用归一化啊。 .~A*=
System Transmittance v4,h&JLt
Suppose you need to calculate the system transmittance of an optical system. MB^~%uZ2K
You would probably use the grid raytrace option, and the emitted flux is equal to !) "%),>}o
the sum of the flux in all the emitted rays. When you display an irradiance map, 1/ 1Xk,E
the system transmittance is equal to the total flux, displayed at the bottom of the } "vW4
irradiance map window, divided by the emitted flux. To get the system {R<Ea
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transmittance, check the Normalize to emitted flux box and press the Apply =uk0@hy9b
button. The map will be redisplayed, and the Normalized Flux value will be equal z<sg0K8z63
to the system transmittance.
