cie

17-25-084

vertical photometric angle, <of a light path>

γ

angle between the light path and the first axis of the luminaire

Note 1 to entry: The vertical photometric angle is expressed in radian (rad) or degree (°).

Note 2 to entry: This entry was numbered 17-1398 in CIE S 017:2011.

Publication date: 2020-12
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