Pre-Focus Cap: Difference between revisions
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A cap (type P) which enables the luminous element to be brought into a specified position relative to the cap during manufacture of the lamp. | A cap (type P) which enables the luminous element to be brought into a specified position relative to the cap during manufacture of the lamp. | ||
Latest revision as of 09:31, 17 September 2026
A cap (type P) which enables the luminous element to be brought into a specified position relative to the cap during manufacture of the lamp.
By this means, reproducible positioning can be assured when the lamp is inserted in a suitable lampholder.
Note: A Flanged Cap (Culot a Ailettes in French; Flanschsockel in German) is a particular type of pre-focus cap.
Reference: C.I.E. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
