Difference between revisions of "Light-Centre-Length"
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Latest revision as of 10:01, 1 March 2009
2-3-200
Light-Centre-Length (of an incandescent electric lamp or discharge lamp)
The distance between the geometric centre of the luminous element and a specified plane of location on a cap.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)