Difference between revisions of "Focusing"

From International Dictionary of Marine Aids to Navigation
Jump to navigation Jump to search
m (1 revision)
m (1 revision)
Line 10: Line 10:


{{languages|Focusing}}
{{languages|Focusing}}
[[Category:2.2 Optical Apparatus]
[[Category:2.2 Optical Apparatus]]
[[Category:Alphabetical Index]]
[[Category:Alphabetical Index]]
[[Category:IALA Dictionary 1970-89 Edition]]
[[Category:IALA Dictionary 1970-89 Edition]]

Revision as of 00:05, 25 February 2009

2-2-155

1. The operation of placing a point object at the focus of an optical apparatus.

2. The operation of placing a light source about or near the focus of an optical apparatus in such a way as to produce a desired light distribution.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)