Automatic rangefinder system for photographic camera with light

Details Automatic rangefinder system for photographic camera with light Automatic rangefinder system for photographic camera with light

1978-09-06

1982-02-02

Hix, L. T.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354 31, 356 1, G03B 300

Patent

active

043136540

ABSTRACT:
A photographic camera having an automatic rangefinder system wherein a light emitter projects a beam of light through a convergent lens to illuminate a target object. This beam of light is detected through another convergent lens by one of a group of photoresponsive elements forming a light receiver. Depending upon which photoresponsive element of the light receiver detects the reflected beam of light, the range of the target object to be photographed from the photographic camera is indicated. The light emitter and the light receiver are supported by a single support member in laterally offset relation to each other and the lens elements for converging the projected beam of light and the reflected beam of light, respectively, are integrally formed of a synthetic resin. The rangefinder elements are assembled into a rangefinder module.

REFERENCES:
patent: Re27461 (1972-08-01), Harvey
patent: 3617128 (1971-11-01), Harvey
patent: 3723003 (1973-03-01), Vockenhuber
patent: 3836919 (1974-09-01), Matsumoto et al.
patent: 3936187 (1976-02-01), Momose
patent: 4032934 (1977-06-01), Hendrickson
patent: 4085320 (1978-04-01), Wilwerding
patent: 4104650 (1978-08-01), Hosoe et al.

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