[10.5.6.5]
The angle between a ray of light arriving at a surface and a line normal (perpendicular) to that surface.
NOTE: This term was added in RP-16-17 Addendum 2.
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[10.5.6.5]
The angle between a ray of light arriving at a surface and a line normal (perpendicular) to that surface.
NOTE: This term was added in RP-16-17 Addendum 2.
« Back to Definitions Index