算光效率 ，可以尝试使用归一化啊。 P_c9v/
System Transmittance [tz}H&
Suppose you need to calculate the system transmittance of an optical system. SxRa?5
You would probably use the grid raytrace option, and the emitted flux is equal to G
Y ]bw
the sum of the flux in all the emitted rays. When you display an irradiance map, ON3~! Q)
the system transmittance is equal to the total flux, displayed at the bottom of the G
C3G=DTt
irradiance map window, divided by the emitted flux. To get the system .{#J2}+[_}
transmittance, check the Normalize to emitted flux box and press the Apply TqXB2`7Ri
button. The map will be redisplayed, and the Normalized Flux value will be equal }W* q
to the system transmittance.
