Focus adjusting control device

Details Focus adjusting control device Focus adjusting control device

1991-07-02

1992-07-07

Adams, Russell E.

354402, 354432, G03B 1336

Patent

active

051287056

ABSTRACT:
A focus adjusting control device for adjusting the focal point of an optical system for an object captured at a sighting part of a picture plane specified by the optical system is provided with a selecting circuit for selecting the position of the sighting part on the picture plane, and a focus adjustment part arranged to begin, in response to a selecting action of the selecting circuit, a focus adjusting action corresponding to the position of the sighting part selected by the selecting circuit.

REFERENCES:
patent: 4614975 (1986-09-01), Kaite
patent: 4827303 (1989-05-01), Tsuboi

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