Invention Grant
- Patent Title: Shake compensation control apparatus, optical device, image capturing apparatus, and control method of shake compensation
- Patent Title (中): 振动补偿控制装置,光学装置,摄像装置以及抖动补偿的控制方法
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Application No.: US13490783Application Date: 2012-06-07
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Publication No.: US08873942B2Publication Date: 2014-10-28
- Inventor: Nobushige Wakamatsu
- Applicant: Nobushige Wakamatsu
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2011-147527 20110701
- Main IPC: G03B17/00
- IPC: G03B17/00 ; G03B5/02 ; H04N5/232 ; G02B27/64

Abstract:
The image capturing apparatus detects a rotational shake and translational shake produced by an apparatus by a rotational velocity meter and an acceleration meter. A rotational shake compensation coefficient calculation unit calculates a compensation (correction) coefficient in relation to rotational shake. A translational shake compensation coefficient calculation unit calculates a compensation (correction) coefficient in relation to translational shake. When calculating the compensation amount in relation to rotational shake and translational shake using the respective compensation (correction) coefficients, the camera CPU acquires information indicating a degree of focus of the imaging optical system, and suppresses variation in the compensation amount by reducing the compensation (correction) coefficient when the degree of focus is low. A driving unit drives the shake compensation unit in accordance with the compensation amount relative to the rotational shake and the translational shake, thereby compensating for image shake in the imaging surface of the imaging optical system.
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