| lightgirl |
2008-10-24 10:03 |
算光效率 ,可以尝试使用归一化啊。 B~%SB/eu System Transmittance *7C l1o Suppose you need to calculate the system transmittance of an optical system. T5aeO^x You would probably use the grid raytrace option, and the emitted flux is equal to Se[>z( the sum of the flux in all the emitted rays. When you display an irradiance map, L/,M@1@R the system transmittance is equal to the total flux, displayed at the bottom of the <H|]^An!H irradiance map window, divided by the emitted flux. To get the system q^b12@.
transmittance, check the Normalize to emitted flux box and press the Apply WB" 90! button. The map will be redisplayed, and the Normalized Flux value will be equal 2 '8I/>- to the system transmittance.
|
|