FAQ

What is the Angle for Radiance?
Angle for Radiance is the angle between the normal on the surface and the mean ray in the pencil being considered. Angle for Radiance is usually measured using the Degree for Angle. Note that the value of Angle for Radiance is always negative.
Can the Angle for Radiance be negative?
Yes, the Angle for Radiance, measured in Angle can be negative.
What unit is used to measure Angle for Radiance?
Angle for Radiance is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Angle for Radiance can be measured.
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