Focus detecting device

Details Focus detecting device Focus detecting device

1978-10-27

1983-10-11

Gellner, Michael L.

G03B 310

Patent

active

044088531

ABSTRACT:
A focus detecting device comprising split prisms between an optical lens and an object image formed on the focal plane of the lens. The image is divided into two images and a plurality of light receiving elements or two arrays are disposed on the image forming surface. The outputs of the elements or arrays are processed to provide an electrical signal indicative of focus status.

REFERENCES:
patent: 4083056 (1978-04-01), Nakamura et al.
patent: 4114994 (1978-09-01), Kondo
patent: 4132888 (1979-01-01), Kondo
patent: 4147417 (1979-04-01), Mandler

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