发明申请
- 专利标题: PHOTOGRAPHIC OPTICAL DEVICE, PHOTOGRAPHIC OPTICAL SYSTEM AND DISTANCE VARIATION AMOUNT DETECTING DEVICE
- 专利标题(中): 摄影光学装置,摄影光学系统和距离变化量检测装置
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申请号: US13819932申请日: 2011-08-24
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公开(公告)号: US20130156412A1公开(公告)日: 2013-06-20
- 发明人: Hayato Naito , Toshiyuki Karasawa , Ryoji Komatsu , Hisahiro Ishihara
- 申请人: Hayato Naito , Toshiyuki Karasawa , Ryoji Komatsu , Hisahiro Ishihara
- 申请人地址: JP Nagano
- 专利权人: NIDEC SANKYO CORPORATION
- 当前专利权人: NIDEC SANKYO CORPORATION
- 当前专利权人地址: JP Nagano
- 优先权: JP2010-195841 20100901
- 国际申请: PCT/JP2011/069073 WO 20110824
- 主分类号: G02B27/64
- IPC分类号: G02B27/64 ; G01B11/14
摘要:
A photographic optical device may include a reflection type optical sensor comprising a light emitting element and a light receiving element; a support body to which the reflection type optical sensor is fixed; a camera module comprising a lens and an imaging element; a shake correction mechanism structured to swing the camera module; a resistor configured to convert an output current of the light receiving element to an output voltage; a home position voltage creating means configured to create a home position voltage; a comparator configured to compare the home position voltage with a predetermined reference voltage; and a variable current source configured to control an electric current supplied to the light emitting element based on an output signal from the comparator. A relative position of the camera module with respect to the support body may be detected by the reflection type optical sensor.