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photometry
secondary source


intensity of a perfectly diffusing plane surface ( free )


Caution
Fill in all cells except one.
Choose all parameters unit.
All parameters are positive.

ParameterValueunit
F
i
I
intensity of a perfectly diffusing plane surface
F : total luminous flux received by the diffusing surface i : angle of observation with the normal to the surface I : intensity of the diffusing surface

Note
This calculation page can not detect all unrealistic inputs.



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