Difference between revisions of "Primary Light Source"

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Revision as of 10:07, 25 February 2009

2-3-000

A surface or object emitting light which is produced by a transformation of energy. The surface or object may at the same time emit invisible radiation.

Reference: C.I.E. (modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)