Image pickup apparatus

Television – Camera – system and detail – Optics

Patent

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Details

348224, H04N 5232

Patent

active

059992158

ABSTRACT:
An image pickup apparatus includes an image sensor arranged to photoelectrically convert an image light coming from an object, an iris arranged to adjust the quantity of image light incident on the image sensor, a detection circuit for detecting the state of the iris, a correction circuit to correct the output of the detection circuit so as to correct a change of the iris caused by a change in the mode of shooting, and a focus adjusting device. The correction circuit is arranged such that, when an aperture value is caused to change by a change in the shooting mode, the correction circuit offsets the change of the aperture value by correcting aperture value information before the aperture value information is supplied to the focus adjusting device.

REFERENCES:
patent: 4371240 (1983-02-01), Shimizu et al.
patent: 4387975 (1983-06-01), Araki
patent: 4574303 (1986-03-01), Hashimoto et al.
patent: 4825293 (1989-04-01), Kobayashi et al.
patent: 5093716 (1992-03-01), Kondo et al.
patent: 5128769 (1992-07-01), Arai et al.
patent: 5212516 (1993-05-01), Yamada et al.
patent: 5319449 (1994-06-01), Saito et al.

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