Photometry



Radiance


Radiance

radiance
Be =
W/(sr·m2)
radiant intensity (power of radiation source per unit of solid angle)
Ie =
W/sr
area of surface of emitting source
Sem =
m2
angle between direction of radiation propagation and normal to surface
α =
rad

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"



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