发明授权
- 专利标题: Image capture apparatus
- 专利标题(中): 图像采集设备
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申请号: US11352225申请日: 2006-02-13
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公开(公告)号: US07633546B2公开(公告)日: 2009-12-15
- 发明人: Yuji Tsuda
- 申请人: Yuji Tsuda
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2005-053893 20050228
- 主分类号: H04N5/225
- IPC分类号: H04N5/225 ; G03B7/24
摘要:
An image capture apparatus can immediately start image recording capable of preventing the deterioration of image quality, even when brightness of an object immediately after the activation of a power source is higher than a reference value. A filter control circuit automatically inserts a filter for reducing the transmitting light amount of an image capture optical system into the optical path of the optical system regardless of the state of a switch for inserting or withdrawing the filter, when the brightness of the object is higher than the reference value immediately after the activation of the power source. Moreover, the filer control circuit automatically withdraws the filter from the optical path regardless of the state of the switch, when the brightness of the object is lower than the reference value immediately after the activation of the power source.
公开/授权文献
- US20060192884A1 Image capture apparatus 公开/授权日:2006-08-31
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