算光效率 ,可以尝试使用归一化啊。 xO
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System Transmittance )>r sX)
Suppose you need to calculate the system transmittance of an optical system. )tp;2rJ/
You would probably use the grid raytrace option, and the emitted flux is equal to mXJ`t5v^l
the sum of the flux in all the emitted rays. When you display an irradiance map, mBON>Z[4.
the system transmittance is equal to the total flux, displayed at the bottom of the |,lw$k93
irradiance map window, divided by the emitted flux. To get the system ^CfWLL&
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transmittance, check the Normalize to emitted flux box and press the Apply nPg,(8Tt
button. The map will be redisplayed, and the Normalized Flux value will be equal `-yiVUp1:z
to the system transmittance.