发明授权
US07729058B2 Zoom lens system and electronic image pickup apparatus using the same
有权
变焦镜头系统和使用其的电子摄像装置
- 专利标题： Zoom lens system and electronic image pickup apparatus using the same
- 专利标题（中）： 变焦镜头系统和使用其的电子摄像装置
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申请号： US11604032申请日： 2006-11-21
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公开(公告)号： US07729058B2公开(公告)日： 2010-06-01
- 发明人: Kouki Hozumi , Takahiro Amanai , Toru Miyajima , Masahito Watanabe , Masashi Hankawa , Kazuya Nishimura
- 申请人： Kouki Hozumi , Takahiro Amanai , Toru Miyajima , Masahito Watanabe , Masashi Hankawa , Kazuya Nishimura
- 申请人地址： JP Tokyo
- 专利权人： Olympus Imaging Corp.
- 当前专利权人： Olympus Imaging Corp.
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenyon & Kenyon LLP
- 优先权： JP2005-340261 20051125; JP2006-043406 20060221; JP2006-153336 20060601
- 主分类号： G02B15/14
- IPC分类号： G02B15/14
摘要：
A zoom lens system includes, in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. During zooming from a wide-angle end to a telephoto end, a space between the first lens unit and the second lens unit narrows, at least the second lens unit moves only toward the object side, and the third lens unit is constituted of one positive lens.
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