Standard Lamp: Difference between revisions
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(Photometric) Standard Lamp | (Photometric) Standard Lamp | ||
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Note: Standard lamps include both Secondary Standards and Working Standards as well as the Primary Standard. For definitions of these, see | Note: Standard lamps include both Secondary Standards and Working Standards as well as the Primary Standard. For definitions of these, see C.I.E. | ||
{{IALAFooter}} | {{IALAFooter}} | ||
{{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 10:00, 17 September 2026
(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 C.I.E.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
