算光效率 ，可以尝试使用归一化啊。 E]~ #EFc
System Transmittance h !(#
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Suppose you need to calculate the system transmittance of an optical system. 81|[Y'f
You would probably use the grid raytrace option, and the emitted flux is equal to OCdX'HN5Y
the sum of the flux in all the emitted rays. When you display an irradiance map, "6%{#TZ
the system transmittance is equal to the total flux, displayed at the bottom of the x'}z NEXI
irradiance map window, divided by the emitted flux. To get the system H?r~% bh
transmittance, check the Normalize to emitted flux box and press the Apply cLL2
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button. The map will be redisplayed, and the Normalized Flux value will be equal $> QJ%v9+
to the system transmittance.
