Primary Light Source
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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)
Contrast
Celsius (previously Centigrade)
Capacitance
charge current
Intensity
Illuminance
Energy
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM