Optical Axis

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2-2-110

Optical Axis (of a lens, other than a fixed lens, or of a focusing reflector)

The axis of revolution of the surfaces bounding the lens or reflector.

Ch2 Fig10.jpg




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

Languages

English

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM

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