Stepped Lens

From International Dictionary of Marine Aids to Navigation
Revision as of 12:00, 15 February 2009 by Oferiks (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

2-2-130

A lens or fixed lens of dioptric elements only, having a profile of stepped shape.




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

[[Category:2.2 Optical Apparatus]