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

Revision as of 10:01, 1 March 2009

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)

Revision as of 09:54, 1 March 2009 (view source) Oferiks (talk \| contribs) ← Older edit	Revision as of 10:01, 1 March 2009 (view source) Oferiks (talk \| contribs) m (1 revision) Newer edit →
(No difference)