Invention Grant
- Patent Title: Imaging apparatus and control method for same
- Patent Title (中): 成像装置及其控制方法相同
-
Application No.: US13957904Application Date: 2013-08-02
-
Publication No.: US09229188B2Publication Date: 2016-01-05
- Inventor: Hisao Yagi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2012-177184 20120809
- Main IPC: G02B7/02
- IPC: G02B7/02 ; G02B7/10 ; H04N5/232

Abstract:
An optical member drive control apparatus includes an acquiring unit configured to acquire first information corresponding to a movement speed of an optical member when a movement of the optical member is controlled and second information corresponding to a movement amount of the optical member; and a controller configured to output a signal to an actuator that moves the optical member and that can detect a drive amount of the actuator per unit time. The controller includes at least a first mode that carries out closed loop control of the actuator according to the detection result of the drive amount of the actuator per unit time and a second mode that carries out open loop control of the actuator, and the controller selects the first mode or the second mode based on the first information and the second information that have been acquired by the acquiring unit.
Public/Granted literature
- US20140043702A1 IMAGING APPARATUS AND CONTROL METHOD FOR SAME Public/Granted day:2014-02-13
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |
G02B7/02 | .用于透镜 |