Normalize {Bx\Z0+ '&
Normalize the map data to the total emitted flux from all sources. A6VkVJZx
This option allows you to have the flux and irradiance normalized to the total L<n_}ucA
emitted flux. When this box is checked, TracePro divides the values in the r%4:,{HF
irradiance map and the total flux by the emitted flux. This is especially useful for t<tBOesQ
calculating system transmittance for an optical system, or lighting efficiency for a 6822xk
lighting calculation. :gXj( $
Example 1: System Transmittance 9 w 1)Mf}
Suppose you need to calculate the system transmittance of an optical system. l_WY];a
You would probably use the grid raytrace option, and the emitted flux is equal to
.1;?#t]ZV
the sum of the flux in all the emitted rays. When you display an irradiance map, 81&!!qhfS
the system transmittance is equal to the total flux, displayed at the bottom of the = j -
irradiance map window, divided by the emitted flux. To get the system Lfor 0-j
transmittance, check the Normalize to emitted flux box and press the Apply FB""^IC?W
button. The map will be redisplayed, and the Normalized Flux value will be equal &oBJY'1
to the system transmittance. |Cm}%sgR\0
Example 2: Lighting Efficiency iBCM?RiG
Suppose you need to calculate the lighting efficiency of a luminaire in illuminating ^H'#*b0u
a plane. You would probably choose the Surface Source raytrace option, and the a %kj)ah
emitted flux is equal to the flux you specified when you defined the sources. When +e\u4k {3V
you display an irradiance map, the total flux incident on the observation plane is w jF\>
displayed at the bottom of the window. The lighting efficiency is equal to the total HhO $`YZ%>
flux divided by the emitted flux. To get the lighting efficiency directly, check the [0 $Y@ek[
Normalize to emitted flux box and press the Apply button. The map will be w[XW>4x K
redisplayed, and the Normalized Flux value will be equal to the lighting efficiency -Ac^#/[ 0
of the luminaire.
