算光效率 ,可以嘗試使用歸一化啊。
kH-1l>": System Transmittance
J);1Tpm Suppose you need to calculate the system transmittance of an optical system.
HR.S.(t[_ You would probably use the grid raytrace option, and the emitted flux is equal to
XMa(XOnX the sum of the flux in all the emitted rays. When you display an irradiance map,
oel3H5Nz the system transmittance is equal to the total flux, displayed at the bottom of the
|cWW5\/ irradiance map window, divided by the emitted flux. To get the system
<W|{zAyv transmittance, check the Normalize to emitted flux box and press the Apply
I;uZ/cZ|/ button. The map will be redisplayed, and the Normalized Flux value will be equal
RTH