Auto focus system

Details Auto focus system Auto focus system

1978-02-13

1980-01-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250204, 354 25, G01J 120

Patent

active

041849680

ABSTRACT:
An auto focus system includes first and second detector arrays which receive first and second detection images of an object. The detection images are displaced from each other by a distance which depends upon the distance to a remote object. The detector arrays produce output signals which vary with the position of the detection images and thus with the distance to the object. The output signals are processed to provide a resultant signal indicative of the distance to the object and this signal may be used, for example, to control the position of a lens in a photographic camera.

REFERENCES:
patent: 3274914 (1966-09-01), Biederman et al.
patent: 3450883 (1969-06-01), Thomas
patent: 3684374 (1972-08-01), Humphrey
patent: 3836772 (1974-09-01), Stauffer
patent: 3838275 (1974-09-01), Stauffer
patent: 3945023 (1976-03-01), Stauffer
patent: 3958117 (1976-05-01), Stauffer
patent: 4002899 (1977-01-01), Stauffer

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