算光效率 ，可以尝试使用归一化啊。 d}G?iX;c}
System Transmittance u1"e+4f
Suppose you need to calculate the system transmittance of an optical system. Uyh
You would probably use the grid raytrace option, and the emitted flux is equal to ;z?XT \C$
the sum of the flux in all the emitted rays. When you display an irradiance map, [0}471
the system transmittance is equal to the total flux, displayed at the bottom of the CxRp$;rk
irradiance map window, divided by the emitted flux. To get the system u7;A`
transmittance, check the Normalize to emitted flux box and press the Apply pqs)ueu
button. The map will be redisplayed, and the Normalized Flux value will be equal d .+vjMI
to the system transmittance.
