Difference between revisions of "Belt (of a fixed lens)"
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'''2-2-095 | '''2-2-095 | ||
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. | ||
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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.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
