Difference between revisions of "Belt (of a fixed lens)"

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The optically central portion of a fixed lens, consisting of a refracting element of annular shape and lenticular cross-section.
The optically central portion of a fixed lens, consisting of a refracting element of annular shape and lenticular cross-section.


[[Image:Ch2_Fig16a.jpg|400px]]
[[Image:Ch2_Fig16a.jpg|400px|border]]


[[Image:Ch2_Fig16b.jpg|400px]]
[[Image:Ch2_Fig16b.jpg|400px|border]]


{{IALAFooter}}
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[[Category:Alphabetical Index]]
[[Category:Alphabetical Index]]
[[Category:IALA Dictionary 1970-89 Edition]]
[[Category:IALA Dictionary 1970-89 Edition]]
[[Category:IALA Dictionary 2023 Revision]]

Latest revision as of 19:21, 2 February 2024

2-2-095

The optically central portion of a fixed lens, consisting of a refracting element of annular shape and lenticular cross-section.

Ch2 Fig16a.jpg

Ch2 Fig16b.jpg




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