Difference between revisions of "Pre-Focus Cap"

From International Dictionary of Marine Aids to Navigation
Jump to navigation Jump to search
m (1 revision)
m (1 revision)
Line 6: Line 6:
By this means, reproducible positioning can be assured when the lamp is inserted in a suitable lampholder.
By this means, reproducible positioning can be assured when the lamp is inserted in a suitable lampholder.


[[Image:Ch2_Fig26.jpg|400px]]
[[Image:Ch2_Fig26.jpg|400px|border]]





Revision as of 10:07, 25 February 2009

2-3-130

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.

Ch2 Fig26.jpg


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)