Wide angle view optical system

Details Wide angle view optical system Wide angle view optical system

1977-07-05

1979-10-09

Levy, Stewart J.

Optics: image projectors

Plural projection paths with single light source

350 19, 350 27, 350181, 353 70, 355 52, G02B 517, G03B 2100

Patent

active

041704002

ABSTRACT:
An optical system for cameras and projectors includes a reflective convex mirror for a wide-angle view, for example, a sector of one fourth of a sphere to obtain a view of 180.degree.. The optical system further includes a front face reflecting mirror to change the optical path 90.degree., a first focusing lens, a fiber optic bundle and a second focusing lens. The fiber optic bundle has one face in the form of an annulus or sector of an annulus and the opposite face of rectangular shape so that an annular shaped image may be converted into a non-distorted image of rectangular form.

REFERENCES:
patent: 2122750 (1938-07-01), Nicolson
patent: 2244235 (1941-06-01), Ayres
patent: 3142235 (1964-07-01), Siegmund
patent: 3770909 (1973-11-01), Rose et al.
patent: 3864017 (1975-02-01), Cole

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