Normalize
^l;nBD#nJ Normalize the map data to the total emitted flux from all sources.
mz@`*^7? This option allows you to have the flux and irradiance normalized to the total
q 1a}o% emitted flux. When this box is checked, TracePro divides the values in the
j$ <uE{c irradiance map and the total flux by the emitted flux. This is especially useful for
Yi1* o? calculating system transmittance for an optical system, or lighting efficiency for a
FDM&rQ lighting calculation.
}c(".v# Example 1: System Transmittance
vAi NOpz# Suppose you need to calculate the system transmittance of an optical system.
HubSmbS1 You would probably use the grid raytrace option, and the emitted flux is equal to
ei'=%r8~ the sum of the flux in all the emitted rays. When you display an irradiance map,
%:oyHlz% the system transmittance is equal to the total flux, displayed at the bottom of the
QIQ }ia irradiance map window, divided by the emitted flux. To get the system
}7YDe'5V transmittance, check the Normalize to emitted flux box and press the Apply
e_s9E{( button. The map will be redisplayed, and the Normalized Flux value will be equal
|E $Jt-' to the system transmittance.
=0 W`tx Example 2: Lighting Efficiency
,
"w`,c>! Suppose you need to calculate the lighting efficiency of a luminaire in illuminating
5\1Z"? a plane. You would probably choose the Surface Source raytrace option, and the
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