Conic camera

Details Conic camera Conic camera

1984-11-26

1986-07-08

Perkey, William B.

354288, G03B 1700

Patent

active

045989877

ABSTRACT:
A non-focusing camera featuring a conical louver and a plano-convex conical objective. The louver consists of a series of graduated concentric conical louvers with radial fins interposed. The conical louvers select rays of required inclination to the lens and intercept other rays. The selected rays are refracted first by the plano face of the lens and second by the convex conical face and projected onto the film which is placed close to the lens. The rays forming the image are afocal.

REFERENCES:
patent: 1479112 (1924-01-01), Sparks
patent: 1633373 (1927-06-01), Gregier
patent: 2373936 (1945-04-01), Wright
patent: 2811081 (1957-10-01), Praeger
patent: 3774992 (1973-11-01), Steiner
patent: 3886544 (1975-05-01), Narodny
patent: 3950769 (1976-04-01), Yevick
patent: 3995288 (1976-11-01), Yevick
patent: 4168900 (1979-09-01), Adachi
patent: 4175844 (1979-11-01), Glaser-Inbari
patent: 4331380 (1982-05-01), Rees et al.

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