Automatic focusing apparatus for a camera

Details Automatic focusing apparatus for a camera Automatic focusing apparatus for a camera

1981-10-29

1983-09-20

Gellner, Michael L.

G03B 310

Patent

active

044052200

ABSTRACT:
An automatic focusing apparatus for a camera includes object brightness detecting means for detecting the brightness of an object and producing an output corresponding to the brightness, in-focus detecting means for detecting whether the phototaking lens of the camera lies within or outside a predetermined in-focus range near the in-focus point and producing outputs corresponding to the respective cases, and phototaking lens driving means for driving the phototaking lens to its in-focus position in accordance with the output of the object brightness detecting means and the output of the in-focus detecting means.

REFERENCES:
patent: 4264810 (1981-04-01), Utagawa et al.
patent: 4324465 (1982-04-01), Rossbach et al.

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