Segmented sectional reflection for the projection of light beams

Details Segmented sectional reflection for the projection of light beams Segmented sectional reflection for the projection of light beams

1976-10-27

1978-01-03

Hix, L. T.

Illumination

Light modifier

Reflector

350293, 350320, 353 98, 362346, 362350, F21V 700, G02B 510

Patent

active

040668878

ABSTRACT:
A projection system, such as a slide film or motion picture projection system, includes a light source, a reflector, a film gate or aperture, and a screen. The reflector is formed from a deep-dish ellipse reflector by cutting the ellipse into at least three reflector sectors and then outwardly radially deforming the outer edges, the deformation occurring within a certain critical range. The deformed outer edges are then clamped by circular clamping means.

REFERENCES:
patent: 1248456 (1917-12-01), Clark
patent: 3689760 (1972-09-01), Swoart, Jr.

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