Image pickup device

Details Image pickup device Image pickup device

1995-02-06

1999-07-06

Faile, Andrew I.

Television

Camera, system and detail

Optics

348349, 348350, H04N 5232

Patent

active

059203498

ABSTRACT:
An image pickup device is provided with a phototaking optical system for guiding light from an object to an image sensor which produces image information from the received light; a dividing unit for dividing the image information from the image sensor into plural blocks; an extraction unit for extracting from the plural blocks divided by the dividing unit, those with a relatively high content of high-frequency components; a detection unit for detecting focus information relating to the focus state of the phototaking optical system based on frequency information relating to the frequency components of the blocks extracted by the extraction unit; and a driving unit for driving the phototaking optical system according to the focus information.

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patent: 5323233 (1994-06-01), Yamagami et al.
patent: 5341170 (1994-08-01), Takemoto
patent: 5583568 (1996-12-01), Suga et al.

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