算光效率 ，可以尝试使用归一化啊。 zytN leyc
System Transmittance
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Suppose you need to calculate the system transmittance of an optical system. b=MW;]F
You would probably use the grid raytrace option, and the emitted flux is equal to MW rhVn{R
the sum of the flux in all the emitted rays. When you display an irradiance map, ,(x` zpp _
the system transmittance is equal to the total flux, displayed at the bottom of the <H60rON
irradiance map window, divided by the emitted flux. To get the system ^il$t]X5-
transmittance, check the Normalize to emitted flux box and press the Apply mp$IhJ6#
button. The map will be redisplayed, and the Normalized Flux value will be equal HLPRTta.
to the system transmittance.
