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公开(公告)号:US20170219813A1
公开(公告)日:2017-08-03
申请号:US15392368
申请日:2016-12-28
Applicant: OLYMPUS CORPORATION
Inventor: Takahiro AMANAI , Ayami IMAMURA
CPC classification number: G02B23/2438 , G02B23/2461 , G02B23/2484 , G02B27/4211
Abstract: An image pickup apparatus includes an image forming optical system which includes an aperture stop that sets an axial light beam, and a diffracting optical surface disposed at a position different from a position where the aperture stop is disposed, and an imager which is disposed on an image side of the image forming optical system, and has a light-receiving surface which is not flat and is curved to be concave toward the image forming optical system, wherein the diffracting optical surface satisfies the following conditional expression (1). 0.1
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公开(公告)号:US20150168682A1
公开(公告)日:2015-06-18
申请号:US14505246
申请日:2014-10-02
Applicant: OLYMPUS CORPORATION
Inventor: SHINICHI MIHARA , Hirokazu KONISHI , Toyoharu HANZAWA , Masahito WATANABE , Atsujiro ISHII , Tetsuhide TAKEYAMA , Ayami IMAMURA
CPC classification number: G02B13/0065 , G02B13/0045 , G02B13/006 , G02B13/007 , G02B13/0075 , G02B13/009 , G02B15/14 , G02B15/16 , H04N5/2253 , H04N5/2254 , H04N5/23238 , H04N5/23296
Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.
Abstract translation: 本发明涉及一种电子摄像系统,其深度尺寸极大地降低,利用可以克服施加在变焦可移动透镜组的移动的条件的光学系统类型,同时保持高规格和性能。 电子摄像系统包括:光路弯曲变焦光学系统,其从物体侧依次包括第一透镜组G1-1,其包括负透镜组和用于弯曲光路的反射光学元件P, 包括一个正透镜的第1-2透镜组G1-2和具有正折射光焦度的第二透镜组G2。 为了从广角端到望远端的放大,第二透镜组G2仅向物体侧移动。 电子摄像系统还包括位于变焦光学系统的像侧的电子摄像装置I。
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公开(公告)号:US20170336625A1
公开(公告)日:2017-11-23
申请号:US15452821
申请日:2017-03-08
Applicant: OLYMPUS CORPORATION
Inventor: Takahiro AMANAI , Ayami IMAMURA , Shinichi MIHARA
Abstract: An image pickup apparatus includes an image forming optical system having an aperture stop, a first lens, and a second lens, and an imager having a light-receiving surface that is curved to be concave toward the image forming optical system, and a relative partial dispersion for a medium of the first lens differs from a relative partial dispersion for a medium of the second lens, and when a straight line indicated by θgFLA=α×υdLA+βLA (where α=−0.00163) has been set, θgFLA and υdLA for the medium of the first lens are included in both of an area determined by the following conditional expression (1) and an area determined by the following conditional expression (2), andthe following conditional expression (3) is satisfied: 0.68
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公开(公告)号:US20170261727A1
公开(公告)日:2017-09-14
申请号:US15608421
申请日:2017-05-30
Applicant: OLYMPUS CORPORATION
Inventor: Shinichi MIHARA , Hirokazu KONISHI , Toyoharu HANZAWA , Masahito WATANABE , Atsujiro ISHII , Tetsuhide TAKEYAMA , Ayami IMAMURA
CPC classification number: G02B13/0065 , G02B13/0045 , G02B13/006 , G02B13/007 , G02B13/0075 , G02B13/009 , G02B15/14 , G02B15/16 , H04N5/2253 , H04N5/2254 , H04N5/23238 , H04N5/23296
Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.
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公开(公告)号:US20160139374A1
公开(公告)日:2016-05-19
申请号:US15001791
申请日:2016-01-20
Applicant: OLYMPUS CORPORATION
Inventor: Shinichi MIHARA , Hirokazu KONISHI , Toyoharu HANZAWA , Masahito WATANABE , Atsujiro ISHII , Tetsuhide TAKEYAMA , Ayami IMAMURA
CPC classification number: G02B13/0065 , G02B13/0045 , G02B13/006 , G02B13/007 , G02B13/0075 , G02B13/009 , G02B15/14 , G02B15/16 , H04N5/2253 , H04N5/2254 , H04N5/23238 , H04N5/23296
Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-banding zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.
Abstract translation: 本发明涉及一种电子摄像系统,其深度尺寸极大地降低,利用可以克服施加在变焦可移动透镜组的移动的条件的光学系统类型,同时保持高规格和性能。 电子摄像系统包括:光路带式变焦光学系统,其从物体侧依次包括第一透镜组G1-1,其包括负透镜组和用于弯曲光路的反射光学元件P, 包括一个正透镜的第1-2透镜组G1-2和具有正折射光焦度的第二透镜组G2。 为了从广角端到望远端的放大,第二透镜组G2仅向物体侧移动。 电子摄像系统还包括位于变焦光学系统的像侧的电子摄像装置I。
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