Universal lens mounting for selective spotlight beam spread

Details Universal lens mounting for selective spotlight beam spread Universal lens mounting for selective spotlight beam spread

1978-11-08

1980-02-05

Nelson, Peter A.

Illumination

Light source and modifier

Plural serial lens elements or components

362362, 362455, F21Y 1304

Patent

active

041875346

ABSTRACT:
A lens casting or housing provides a series of grooves for selective mounting of various lenses to achieve various beam spreads. By spacing lenses in the housing, it is possible to reduce the diameter and thickness of the lens nearer the light source with consequent improvement in thermal characteristics as well as efficiency in light transmission.

REFERENCES:
patent: 1263634 (1918-04-01), Hanson
patent: 2098990 (1967-11-01), Newton
patent: 2114963 (1938-04-01), Levy
patent: 2497147 (1950-02-01), Washam
patent: 2650292 (1953-08-01), Strong
patent: 3116022 (1963-12-01), Davis

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