公开(公告)号：US20110109977A1

公开(公告)日：2011-05-12

申请号：US13005063

申请日：2011-01-12

申请人： SATOSHI HAYAKAWA ,  Satoru SHIBATA

发明人： SATOSHI HAYAKAWA ,  Satoru SHIBATA

IPC分类号： G02B15/14 ,  G02B3/00 ,  G02B9/10 ,  G02B9/12

CPC分类号： G02B15/177 ,  G02B27/0025

摘要： Providing an optical system having excellent optical performance with sufficiently correcting spherical aberration and curvature of field, an imaging apparatus, and a method for forming an image by the optical system. The optical system includes a plurality of lens groups, at least one of the plurality of lens groups having an A lens that satisfies at least one of given conditional expressions.

摘要翻译： 提供具有良好的光学性能的光学系统，具有足够校正的球面像差和曲率，成像装置和通过光学系统形成图像的方法。 所述光学系统包括多个透镜组，所述多个透镜组中的至少一个具有满足至少一个给定条件表达式的A透镜。

公开(公告)号：US20090034100A1

公开(公告)日：2009-02-05

申请号：US12167687

申请日：2008-07-03

申请人： Satoru SHIBATA ,  Satoshi Hayakawa

发明人： Satoru SHIBATA ,  Satoshi Hayakawa

IPC分类号： G02B9/34 ,  G03B17/00

CPC分类号： G02B15/177 ,  G02B27/646 ,  Y10S359/90

摘要： Providing an optical system having excellent optical performance, an imaging apparatus, and a method for forming an image by the optical system. The optical system includes, in order from an object, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having negative refractive power, and a fourth lens group G4 having positive refractive power. At least one of the first lens group G1, the second lens group G2, the third lens group G3, and the fourth lens group G4 has at least one A lens satisfying given conditional expressions.

摘要翻译： 提供具有优异光学性能的光学系统，成像装置和通过光学系统形成图像的方法。 光学系统按照从物体起依次包括具有负折光力的第一透镜组G1，具有正折光力的第二透镜组G2，具有负折光力的第三透镜组G3和具有正折射率的第四透镜组G4 功率。 第一透镜组G1，第二透镜组G2，第三透镜​​组G3和第四透镜组G4中的至少一个具有满足给定条件表达式的至少一个A透镜。

公开(公告)号：US20100188755A1

公开(公告)日：2010-07-29

申请号：US12625358

申请日：2009-11-24

申请人： Satoru SHIBATA

发明人： Satoru SHIBATA

IPC分类号： G02B15/177 ,  G02B27/64

CPC分类号： G02B15/177 ,  G02B27/646

摘要： A zoom lens system including, in order from an object, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having negative refractive power, and a fourth lens group G4 having positive refractive power, upon zooming from a wide-angle end state W to a telephoto end state T, varying respective distances between adjacent lens groups G1, G2, G3, G4, shifting at least one portion of the third lens group G3 in a direction including a component perpendicular to the optical axis, and satisfying given conditional expressions, thereby providing a zoom lens system having a lens capable of moving in a direction including a component perpendicular to the optical axis, and realizing a high zoom ratio and excellent optical performance.

摘要翻译： 一种变焦透镜系统，其从物体依次包括具有负折光力的第一透镜组G1，具有正折光力的第二透镜组G2，具有负折光力的第三透镜组G3和具有负折射光焦度的第四透镜组G4 折射力，从广角端状态W变焦到望远端状态T时，改变相邻透镜组G1，G2，G3，G4之间的相应距离，使第三透镜组G3的至少一部分沿包括 垂直于光轴的分量，并且满足给定条件表达式，从而提供具有能够在垂直于光轴的分量的方向上移动的透镜的变焦透镜系统，并且实现高变焦比和优异的光学性能。

公开(公告)号：US20110194191A1

公开(公告)日：2011-08-11

申请号：US13090936

申请日：2011-04-20

申请人： Satoru SHIBATA ,  Takeshi SUZUKI ,  Hiroshi YAMAMOTO

发明人： Satoru SHIBATA ,  Takeshi SUZUKI ,  Hiroshi YAMAMOTO

IPC分类号： G02B15/14

CPC分类号： G02B13/04 ,  G02B13/18 ,  G02B15/14 ,  G02B15/177 ,  G02B27/646

摘要： Providing a zoom lens system having excellent optical performance with a high zoom ratio, an imaging apparatus, and a method for zooming the zoom lens system. The system including, in order from an object, a first group G1 having negative refractive power, a second group G2 having positive refractive power, a third group G3 having negative refractive power, and a fourth group G4 having positive refractive power. An aperture stop S is disposed between the second group G2 and the fourth group G4. Upon zooming from a wide-angle end state to a telephoto end state, each group is moved such that a distance between the second group G2 and the third group G3 increases, a distance between the third group G3 and the fourth group G4 decreases, and the aperture stop S is moved together with the third group G3. Given conditions are satisfied.

摘要翻译： 提供具有高变焦比的优异光学性能的变焦透镜系统，成像装置和用于变焦变焦透镜系统的变焦方法。 该系统从物体起依次包括具有负折光力的第一组G1，具有正屈光力的第二组G2，具有负折光力的第三组G3和具有正屈光力的第四组G4。 孔径光阑S设置在第二组G2和第四组G4之间。 在从广角端状态变焦到望远端状态时，各组移动使得第二组G2和第三组G3之间的距离增加，第三组G3和第四组G4之间的距离减小，并且 孔径光阑S与第三组G3一起移动。 给定条件满意。

公开(公告)号：US20090244724A1

公开(公告)日：2009-10-01

申请号：US12393035

申请日：2009-02-25

申请人： Satoru SHIBATA

发明人： Satoru SHIBATA

IPC分类号： G02B9/06 ,  G02B9/12

CPC分类号： G02B7/08 ,  G02B9/08 ,  G02B13/00

摘要： Providing an optical system having excellent optical performance over entire focusing range from infinity to a close distance, a method for focusing the optical system, and an imaging apparatus equipped therewith. The optical system includes, in order from an object, a first lens group G1 having positive refractive power, and a second lens group G2 having positive refractive power. The second lens group G2 is movable along an optical axis for varying focusing. The first lens group G1 satisfies a given conditional expression.

摘要翻译： 提供在从无穷远到近距离的整个聚焦范围内具有优异的光学性能的光学系统，用于聚焦光学系统的方法和配备有其的成像装置。 光学系统按照从物体起依次包括具有正折光力的第一透镜组G1和具有正折光力的第二透镜组G2。 第二透镜组G2可沿光轴移动以改变聚焦。 第一透镜组G1满足给定条件表达式。