Converged Beam

From International Dictionary of Marine Aids to Navigation
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urn:mrn:iala:dic:2-2-0215

A form of fan beam (2-1-090) in which the angle of divergence is decreased by diverting a part of the light laterally to increase the intensity in a desired direction.


Note: The Directional Drum Lens is used in the United States and is an example of an optic which produces a converged beam.




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

Languages

English

ampere

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

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