Difference between revisions of "Focusing"

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{{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 10:01, 1 March 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)