lightgirl |
2008-10-24 10:03 |
算光效率 ,可以尝试使用归一化啊。 Td
>k \< System Transmittance ;Z_C3/b Suppose you need to calculate the system transmittance of an optical system. c" 7pf
T You would probably use the grid raytrace option, and the emitted flux is equal to $(R)
=4 the sum of the flux in all the emitted rays. When you display an irradiance map, ,')bO*Ng the system transmittance is equal to the total flux, displayed at the bottom of the 8TPm[r] irradiance map window, divided by the emitted flux. To get the system ^-!HbbVv transmittance, check the Normalize to emitted flux box and press the Apply ^!qmlx* button. The map will be redisplayed, and the Normalized Flux value will be equal ]t3"0 to the system transmittance.
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