Automatic focusing adjustment device

Details Automatic focusing adjustment device Automatic focusing adjustment device

1985-09-05

1986-11-11

Perkey, William B.

G03B 300

Patent

active

046219170

ABSTRACT:
An automatic focusing adjustment device in which light is projected to an object to be photographed and its reflection is passed to a sensor having three image receiving areas, whereby a signal from the central area is computed with each of signals from the flanked areas to form focusing adjustment.

REFERENCES:
patent: 4065778 (1977-12-01), Harvey
patent: 4251144 (1981-02-01), Matsuda et al.
patent: 4441810 (1984-04-01), Momose et al.
patent: 4451729 (1984-05-01), Takagi et al.
patent: 4464038 (1984-08-01), Nanba

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