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公开(公告)号:US20140368699A1
公开(公告)日:2014-12-18
申请号:US14303938
申请日:2014-06-13
Applicant: OLYMPUS IMAGING CORP.
Inventor: Masaru Morooka , Toyoki Kon , Masahiro Imamura , Minoru Ueda
CPC classification number: G02B15/16 , G02B13/009 , G02B15/173 , G02B27/646 , H04N5/23296
Abstract: A zoom lens comprising, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. Each distance between the first lens unit and the second lens unit, between the third lens unit and the fourth lens unit, and between the fourth lens unit and the fourth lens unit at the telephoto end is longer than at the wide angle end, and a distance between the second lens unit and the third lens unit at the telephoto end is shorter than at the wide angle end, and the following conditional expressions are satisfied. 2
Abstract translation: 一种变焦透镜,包括:具有正折光力的第一透镜单元,具有负折光力的第二透镜单元,具有正折光力的第三透镜单元,具有负折光力的第四透镜单元;以及第五透镜单元 具有正的屈光力。 第一透镜单元和第二透镜单元之间,第三透镜单元和第四透镜单元之间以及在望远端处的第四透镜单元与第四透镜单元之间的距离比广角端长, 在望远端,第二透镜单元与第三透镜单元之间的距离比广角端短,并且满足以下条件表达式。 2
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公开(公告)号:US09154705B2
公开(公告)日:2015-10-06
申请号:US14303938
申请日:2014-06-13
Applicant: OLYMPUS IMAGING CORP.
Inventor: Masaru Morooka , Toyoki Kon , Masahiro Imamura , Minoru Ueda
IPC: G02B9/60 , H04N5/232 , G02B27/64 , G02B15/173
CPC classification number: G02B15/16 , G02B13/009 , G02B15/173 , G02B27/646 , H04N5/23296
Abstract: A zoom lens comprising, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. Each distance between the first lens unit and the second lens unit, between the third lens unit and the fourth lens unit, and between the fourth lens unit and the fourth lens unit at the telephoto end is longer than at the wide angle end, and a distance between the second lens unit and the third lens unit at the telephoto end is shorter than at the wide angle end, and the following conditional expressions are satisfied. 2
Abstract translation: 一种变焦透镜,包括:具有正折光力的第一透镜单元,具有负折光力的第二透镜单元,具有正折光力的第三透镜单元,具有负折光力的第四透镜单元;以及第五透镜单元 具有正的屈光力。 第一透镜单元和第二透镜单元之间,第三透镜单元和第四透镜单元之间以及在望远端处的第四透镜单元与第四透镜单元之间的距离比广角端长, 在望远端,第二透镜单元与第三透镜单元之间的距离比广角端短,并且满足以下条件表达式。 2
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公开(公告)号:US08928993B2
公开(公告)日:2015-01-06
申请号:US13755198
申请日:2013-01-31
Applicant: Olympus Imaging Corp.
Inventor: Tetsuya Yanai , Mayu Miki , Minoru Ueda , Koji Nakagawa , Toyoki Kon
IPC: G02B15/14 , G02B13/00 , G02B15/173
CPC classification number: G02B15/14 , G02B13/009 , G02B15/173
Abstract: A zoom lens comprises in order from an object side a first lens unit having a positive refractive power. The first lens unit consist one positive lens. The zoom lens satisfies the following conditional expressions (1) and (2). Fno(W)
Abstract translation: 变焦透镜从物体侧依次包括具有正屈光力的第一透镜单元。 第一透镜单元由一个正透镜组成。 变焦透镜满足以下条件式(1)和(2)。 Fno(W)<2.7(1)3.1
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公开(公告)号:US08767310B2
公开(公告)日:2014-07-01
申请号:US14034544
申请日:2013-09-23
Applicant: Olympus Imaging Corp.
Inventor: Yasuji Ogata , Yasuharu Yamada , Toshio Takahashi , Toyoki Kon
IPC: G02B15/14 , G02B9/34 , G02B15/173 , G02B13/04
CPC classification number: G02B13/04 , G02B15/173 , G02B15/177
Abstract: The invention provides a zoom lens, characterized by comprising, a zoom lens, which comprises, in order from an object side thereof: a first lens group of negative refracting power, a second lens group of positive refracting power, a third lens group of negative refracting power, and a fourth lens group of positive refracting power, wherein: upon zooming from a wide-angle end to a telephoto end of the zoom lens, a separation between the respective lens groups changes, upon focusing from a focusing-on-infinity state to a close-range focusing state, the third lens group moves in an optical axis direction, and the conditions (1) and (2) are satisfied at the wide-angle end.
Abstract translation: 本发明提供一种变焦透镜,其特征在于包括:变焦透镜,其从物体侧依次包括:负折射力的第一透镜组,正折射率的第二透镜组,负折射率的第三透镜组 折射力的第四透镜组和正折射率的第四透镜组,其中:在从变焦透镜的广角端到望远端变焦时,各个透镜组之间的间隔在聚焦于无限远时变化 状态到近距离聚焦状态,第三透镜组沿光轴方向移动,并且在广角端处满足条件(1)和(2)。
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公开(公告)号:US20130235468A1
公开(公告)日:2013-09-12
申请号:US13755198
申请日:2013-01-31
Applicant: OLYMPUS IMAGING CORP.
Inventor: Tetsuya Yanai , Mayu Miki , Minoru Ueda , Koji Nakagawa , Toyoki Kon
IPC: G02B15/14
CPC classification number: G02B15/14 , G02B13/009 , G02B15/173
Abstract: A zoom lens comprises in order from an object side a first lens unit having a positive refractive power. The first lens unit consist one positive lens. The zoom lens satisfies the following conditional expressions (1) and (2). Fno(W)
Abstract translation: 变焦透镜从物体侧依次包括具有正屈光力的第一透镜单元。 第一透镜单元由一个正透镜组成。 变焦透镜满足以下条件式(1)和(2)。 Fno(W)<2.7(1)3.1
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