Focus detection apparatus and control method thereof to control accumulation time of the focus detection sensors

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United States of America Patent

PATENT NO 9407810
APP PUB NO 20140218596A1
SERIAL NO

14162941

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Abstract

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A focus detection apparatus comprises a sensor unit including a first sensor and a second sensor and configured to output a signal for focus detection, each of the first sensor and the second sensor being configured to receive light that has passed through an imaging optical system and accumulate electric charges, a first signal generation unit configured to generate a first signal based on a contrast of a signal corresponding to the electric charges accumulated in the first sensor, a second signal generation unit configured to generate a second signal based on a contrast of a signal corresponding to the electric charges accumulated in the second sensor; and a control unit configured to control an accumulation time of the electric charges in the first sensor and the second sensor.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shu, Takayuki Kawasaki, JP 26 63

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