Automatic focus adjusting device of a camera having a self-timer

Details Automatic focus adjusting device of a camera having a self-timer Automatic focus adjusting device of a camera having a self-timer

1980-09-24

1981-09-15

Gellner, Michael L.

354238, G03B 300, G03B 1740

Patent

active

042893887

ABSTRACT:
In an automatic focus adjusting device for a camera including range finder means responsitive to a release operation to detect the distance to an object lying at a position corresponding to a specific area of the phototaking picture plane, and means for driving a phototaking lens so as to be focused to the distance detected by the range finder means, said camera further including timer means and being capable of effecting the release operation in response to the operation of the timer means, limit means is provided which is operable in response to the timer means to limit the amount of movement of the phototaking lens driven by said driving means so that when the distance detected by the range finder means exceeds a predetermined distance, the phototaking lens is focused to the predetermined distance.

REFERENCES:
patent: 4183643 (1980-01-01), Imura et al.
patent: 4187017 (1980-02-01), Watanabe

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