算光效率 ,可以尝试使用归一化啊。 [w+yQ7P
System Transmittance
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Suppose you need to calculate the system transmittance of an optical system. `bBfNI?3d*
You would probably use the grid raytrace option, and the emitted flux is equal to A8CIP:Z
the sum of the flux in all the emitted rays. When you display an irradiance map, g!~-^_F
the system transmittance is equal to the total flux, displayed at the bottom of the nEeQL~:
irradiance map window, divided by the emitted flux. To get the system
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transmittance, check the Normalize to emitted flux box and press the Apply 'Y~8_+J?
button. The map will be redisplayed, and the Normalized Flux value will be equal }L{_xyi>#
to the system transmittance.