Invention Grant
- Patent Title: Optical apparatus including an image stabilizing apparatus
- Patent Title (中): 包括图像稳定装置的光学装置
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Application No.: US13164253Application Date: 2011-06-20
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Publication No.: US08218958B2Publication Date: 2012-07-10
- Inventor: Shigeki Sato
- Applicant: Shigeki Sato
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2009-165538 20090714
- Main IPC: G03B17/00
- IPC: G03B17/00 ; G02B27/64

Abstract:
An image stabilizer includes: an optical system movable in a plane perpendicular to an optical axis (“orthogonal plane”) and correcting image blur; a movable member holding the optical system and movable relative to a fixed member in an orthogonal plane; a guide guiding the movable member while preventing from rotating in an orthogonal plane; three first balls rollably interposed between the fixed and guide members; two second balls rollably interposed between the guide and movable members; one third ball rollably interposed between the fixed and movable members; a biasing unit biasing the movable member toward the fixed member; and a drive unit driving the movable member relative to the fixed member in two directions perpendicular to the optical axis, wherein in an orthogonal plane, two of the first balls are rollable only in first direction; the second balls are rollable only in second direction different from the first direction.
Public/Granted literature
- US20110249336A1 OPTICAL APPARATUS INCLUDING AN IMAGE STABILIZING APPARATUS Public/Granted day:2011-10-13
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