Difference between revisions of "Standard Lamp"
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{{languages|Standard Lamp}} | {{languages|Standard Lamp}} | ||
[[Category:2.3 Light Sources] | [[Category:2.3 Light Sources]] | ||
[[Category:Alphabetical Index]] | [[Category:Alphabetical Index]] | ||
[[Category:IALA Dictionary 1970-89 Edition]] | [[Category:IALA Dictionary 1970-89 Edition]] | ||
Latest revision as of 10:01, 1 March 2009
2-3-260
(Photometric) Standard Lamp
A lamp which has been calibrated to give a known value of luminous flux, colour temperature, or luminous intensity in a specified direction, under specified conditions of operation. Such lamps are used as standards in photometric measurements.
Note: Standard lamps include both Secondary Standards and Working Standards as well as the Primary Standard. For definitions of these, see Reference: C.I.E.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
