Spot-light reflector structure

Details Spot-light reflector structure Spot-light reflector structure

1977-12-29

1979-01-16

Nelson, Peter A.

Illumination

Light source and modifier

Including reflector

362310, 362346, 362368, F21V 700, F21V 706

Patent

active

041352327

ABSTRACT:
A spot-light reflector structure is made up of two reflector bodies, a main reflector body and an auxiliary reflector body both of which have a shape which is, in part, that of a paraboloid of revolution. Both reflector bodies are arranged in coaxial relation. The main reflector body has a central aperture and is nonparabolic in the region around said aperture. The auxiliary reflector body is arranged inside of the main reflector body and has an upper portion which is substantially hemispherical and has a central aperture which is arranged in coaxial relation to the central aperture of the main reflector body. The central aperture of the auxiliary reflector body is surrounded by a tubular extension which forms preferably an integral part thereof and which is in the shape of a paraboloid of revolution of considerably smaller size than that of the main reflector body.

REFERENCES:
patent: 1967342 (1934-07-01), Upmeyer
patent: 1970345 (1934-08-01), Speranza
patent: 2071159 (1937-02-01), Benjamin
patent: 2428479 (1947-10-01), Tsouros
patent: 2733336 (1956-01-01), Clayton
patent: 3381126 (1968-04-01), Steiner

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