Invention Grant
- Patent Title: Lens control apparatus, imaging apparatus including lens control apparatus, and lens control method
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Application No.: US16169406Application Date: 2018-10-24
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Publication No.: US11378774B2Publication Date: 2022-07-05
- Inventor: Shunsuke Chino
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JPJP2017-211221 20171031
- Main IPC: G02B7/10
- IPC: G02B7/10 ; G02B7/28 ; G03B3/10 ; G02B7/36 ; G03B13/36 ; G03B5/00 ; H04N5/232

Abstract:
A lens control apparatus includes a control unit that controls a position of a zoom lens and a position of a focus lens, a storage unit that stores cam tracks, an object distance acquisition unit that acquires an object distance, and a target position acquisition unit that acquires information of a first track corresponding to the object distance acquired by the object distance acquisition unit before movement of the zoom lens and a second track corresponding to an object distance longer than that of the first track, and the target position of the focus lens so as to move a focal position of an imaging optical system including the zoom lens and the focus lens based on the first track and the second track when zoom magnification of the imaging optical system including the zoom lens and the focus lens is increased by the movement of the zoom lens.
Public/Granted literature
- US20190129134A1 LENS CONTROL APPARATUS, IMAGING APPARATUS INCLUDING LENS CONTROL APPARATUS, AND LENS CONTROL METHOD Public/Granted day:2019-05-02
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