Normalize ,QS'$n
Normalize the map data to the total emitted flux from all sources. 0VIZ=-e
This option allows you to have the flux and irradiance normalized to the total RqGVp?
emitted flux. When this box is checked, TracePro divides the values in the y[:q"BB3
irradiance map and the total flux by the emitted flux. This is especially useful for Z}[xQ5
calculating system transmittance for an optical system, or lighting efficiency for a N ?+eWY
lighting calculation. @*_ZoO7{
Example 1: System Transmittance M@O2
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Suppose you need to calculate the system transmittance of an optical system. NV#')+Ba
You would probably use the grid raytrace option, and the emitted flux is equal to rB evVc![
the sum of the flux in all the emitted rays. When you display an irradiance map, aQmfrx
the system transmittance is equal to the total flux, displayed at the bottom of the WW3
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irradiance map window, divided by the emitted flux. To get the system C*O
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transmittance, check the Normalize to emitted flux box and press the Apply Y*\6o7
button. The map will be redisplayed, and the Normalized Flux value will be equal 6To:T[ z#
to the system transmittance. taCCw2s-8*
Example 2: Lighting Efficiency p1
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Suppose you need to calculate the lighting efficiency of a luminaire in illuminating sJ7sjrEp 1
a plane. You would probably choose the Surface Source raytrace option, and the i>"dBJh]b
emitted flux is equal to the flux you specified when you defined the sources. When M@~ o6 ^
you display an irradiance map, the total flux incident on the observation plane is Bj&_IDs4
displayed at the bottom of the window. The lighting efficiency is equal to the total "!a`ygqpT
flux divided by the emitted flux. To get the lighting efficiency directly, check the A |C_np^z2
Normalize to emitted flux box and press the Apply button. The map will be \[k% )_
redisplayed, and the Normalized Flux value will be equal to the lighting efficiency K6(.K EW
of the luminaire.
