Luminous Pencil Beam

urn:mrn:iala:dic:2-1-0095

(Luminous) Pencil Beam

A beam in which the light is concentrated about a single line of direction.

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

English

ampere

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