发明授权
- 专利标题: Imaging apparatus and exposure control method
- 专利标题(中): 成像设备和曝光控制方法
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申请号: US12161918申请日: 2007-03-07
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公开(公告)号: US07973830B2公开(公告)日: 2011-07-05
- 发明人: Satoshi Okamoto
- 申请人: Satoshi Okamoto
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2006-064577 20060309
- 国际申请: PCT/JP2007/055018 WO 20070307
- 国际公布: WO2007/105745 WO 20070920
- 主分类号: H04N5/235
- IPC分类号: H04N5/235
摘要:
In a digital camera (10), an imaging sensitivity setting circuit (61) selects a pair of distance range selection parameters “A” and “B” according to a zoom position of a zoom lens (41), to compare an in-focus position of a focusing lens (43) with these parameters “A” and “B”, wherein the parameters “A” and “B” correspond to a farther distance and a nearer distance respectively. If the in-focus position is farther than the parameter “A”, the imaging sensitivity is set to a high level. If the in-focus position is in between these parameters “A” and “B”, the imaging sensitivity is set to a middle level. If the in-focus position is nearer than the parameter “B”, the imaging sensitivity is set to a low level. Based on the set imaging sensitivity level and a measured subject brightness value, a system controller (41) controls the exposure value and the flashlight volume.
公开/授权文献
- US20090009649A1 IMAGING APPARATUS AND EXPOSURE CONTROL METHOD 公开/授权日:2009-01-08
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