公开(公告)号：US07215486B2

公开(公告)日：2007-05-08

申请号：US11374010

申请日：2006-03-14

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14 ,  G02B17/00

CPC classification number: G02B13/04 ,  G02B5/04 ,  G02B5/08 ,  G02B15/177

Abstract: A zoom lens includes a most object-side lens unit remaining fixed on the optical axis when the magnification of the zoom lens is changed and a focusing operation is performed; a most image-side lens unit remaining fixed when the focusing operation is performed; and a plurality of moving lens units lying between the most object-side lens unit and the most image-side lens unit, moved along the optical axis when the magnification is changed. The most object-side lens unit includes, in order from the object side, a negative lens component, a reflective optical component having a reflecting surface for bending the optical path, and a positive lens component. The most image-side lens unit has at least one aspherical surface. An electronic imaging device includes an electronic image sensor located on the image side of the zoom lens.

公开(公告)号：US07113345B2

公开(公告)日：2006-09-26

申请号：US10963555

申请日：2004-10-14

Applicant: Shinichi Mihara ,  Ayami Imamura

Inventor： Shinichi Mihara ,  Ayami Imamura

IPC: G02B15/14

CPC classification number: H04N5/2251 ,  G02B15/173 ,  G03B17/17 ,  H04M2250/52

Abstract: A zoom lens with high optical specification performances and an incorporated electronic imaging system that is much slimmer in its depth direction, albeit having that zoom lens mounted thereon includes a lens group G1 located nearest to the object side, having a reflecting surface M for bending an optical path. The zoom lens satisfies two conditions with respect to a length d as measured along the optical path from the apex of the surface nearest to the object side in lens group G1 to reflecting surface M and a dimension a of the outside shape of a positive lens, found first as viewed along the optical path from the reflecting surface M toward an image side of the zoom lens, in a direction parallel with an optical axis on an object side of the zoom lens with respect to the position where the optical path is bent, respectively.

Abstract translation: 具有高光学规格性能的变焦透镜和其深度方向上更加细小的电子成像系统，尽管其上安装有变焦透镜包括位于最靠近物体侧的透镜组G 1，具有用于弯曲的反射表面M 光路。 变焦透镜相对于从透镜组G 1中最接近物体侧的表面的顶点到反射面M的光路测量的长度d满足两个条件，并且正透镜的外部形状的尺寸a 在与变形透镜的物体侧的光轴平行的方向上，相对于光路弯曲的位置，沿着从反射面M朝向变焦透镜的像侧的光路看到的第一方向 ， 分别。

公开(公告)号：US20060170815A1

公开(公告)日：2006-08-03

申请号：US11391212

申请日：2006-03-29

Applicant: Masahito Watanabe ,  Toru Miyajima ,  Shinichi Mihara ,  Yuji Miyauchi ,  Toshihide Nozawa ,  Hisashi Goto

Inventor： Masahito Watanabe ,  Toru Miyajima ,  Shinichi Mihara ,  Yuji Miyauchi ,  Toshihide Nozawa ,  Hisashi Goto

IPC: H04N5/232

CPC classification number: H04N5/2254 ,  G02B15/177

Abstract: The invention makes a suitable selection from zoom modes and lens elements so thin that the thickness of each lens group can reduced, thereby slimming down a zoom lens with great thoroughness and, hence, an electronic image pickup system. The electronic image pickup system a zoom lens and an electronic image pickup device located on the image plane side of the zoom lens. The zoom lens comprises, in order from the object side, a first lens group G1 comprising two lens components and having generally negative power and a second lens group G2 comprising two lens components and having generally positive power. The focal length of the zoom lens can be varied by varying the air separation between the first lens group G1 and the second lens group G2. The zoom lens should satisfy at least one of conditions (a) to (n).

公开(公告)号：US20060158742A1

公开(公告)日：2006-07-20

申请号：US11374010

申请日：2006-03-14

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B13/04 ,  G02B5/04 ,  G02B5/08 ,  G02B15/177

Abstract: A zoom lens includes a most object-side lens unit remaining fixed on the optical axis when the magnification of the zoom lens is changed and a focusing operation is performed; a most image-side lens unit remaining fixed when the focusing operation is performed; and a plurality of moving lens units lying between the most object-side lens unit and the most image-side lens unit, moved along the optical axis when the magnification is changed. The most object-side lens unit includes, in order from the object side, a negative lens component, a reflective optical component having a reflecting surface for bending the optical path, and a positive lens component. The most image-side lens unit has at least one aspherical surface. An electronic imaging device includes an electronic image sensor located on the image side of the zoom lens.

公开(公告)号：US07002755B2

公开(公告)日：2006-02-21

申请号：US10298574

申请日：2002-11-19

Applicant: Shinichi Mihara ,  Masahito Watanabe ,  Toru Miyajima ,  Yuji Miyauchi

Inventor： Shinichi Mihara ,  Masahito Watanabe ,  Toru Miyajima ,  Yuji Miyauchi

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: The invention provides a zoom lens that comprises a reduced number of lens elements, is compact and simplified, and has high image-formation capability, thereby achieving thorough size reductions in video cameras or digital cameras, and an electronic imaging system using the same. The zoom lens comprises, in order from its object side, a lens group A (G1) having negative refracting power and a lens group B (G2) having positive refracting power. For zooming, the lens groups A and B are designed to move. The lens group B is composed of three meniscus lenses, each convex on its object side.

Abstract translation: 本发明提供一种变焦透镜，其包括减少数量的透镜元件，紧凑且简化，并且具有高图像形成能力，从而实现摄像机或数码相机的彻底尺寸减小，以及使用该变焦透镜的电子成像系统。 变焦透镜从其物体侧依次包括具有负折射力的透镜组A（G 1）和具有正折射率的透镜组B（G 2）。 为了缩放，镜头组A和B设计为移动。 透镜组B由三个弯月透镜组成，每个凸透镜在其物体侧凸起。

公开(公告)号：US06995922B2

公开(公告)日：2006-02-07

申请号：US10750798

申请日：2004-01-05

Applicant: Shinichi Mihara ,  Ayami Imamura

Inventor： Shinichi Mihara ,  Ayami Imamura

IPC: G02B15/14

CPC classification number: G02B15/177 ,  G02B5/04

Abstract: An optical apparatus is provided with a zoom optical system. The zoom optical system includes a lens unit located at the most object-side position and a moving lens unit with positive refracting power, located on the image side of the lens unit. The lens unit includes a single positive lens and the moving lens unit is simply moved toward the object side when the magnification of the zoom lens is changed in the range from a wide-angle position to a telephoto position so as to satisfy the following condition: 0.8

Abstract translation: 光学装置设置有变焦光学系统。 变焦光学系统包括位于最物体侧位置处的透镜单元和位于透镜单元的像侧的具有正折射力的移动透镜单元。 透镜单元包括单个正透镜，并且当变焦透镜的倍率在广角位置到远摄位置的范围内变化时，移动透镜单元被简单地朝向物体侧移动，以满足以下条件

公开(公告)号：US06809881B2

公开(公告)日：2004-10-26

申请号：US10350013

申请日：2003-01-24

Applicant: Masahito Watanabe ,  Hirokazu Konishi ,  Yuji Miyauchi ,  Shinichi Mihara

Inventor： Masahito Watanabe ,  Hirokazu Konishi ,  Yuji Miyauchi ,  Shinichi Mihara

IPC: G02B1514

CPC classification number: G02B15/177

Abstract: A zoom optical system suited for use in an electronic image pickup apparatus comprising a first negative lens unit, a second positive lens unit and a third positive lens unit, in which a magnification is changed from a wide position to a tele position by moving at least the first lens unit and the second lens unit so as to change an airspace between the first lens unit and the second lens unit and widen an airspace between the second lens unit and the third lens unit, the second lens unit comprises a biconvex lens element and a cemented meniscus lens component having a convex surface on the object side, and each lens unit has a small thickness.

Abstract translation: 一种适用于电子摄像装置的变焦光学系统，包括第一负透镜单元，第二正透镜单元和第三正透镜单元，其中通过至少移动放大倍数从宽位置变为远摄位置 第一透镜单元和第二透镜单元，以便改变第一透镜单元和第二透镜单元之间的空间，并且加宽第二透镜单元和第三透镜单元之间的空间，第二透镜单元包括双凸透镜元件， 在物体侧具有凸面的胶结弯液面透镜部件，并且每个透镜单元具有小的厚度。

公开(公告)号：US06643072B2

公开(公告)日：2003-11-04

申请号：US09899925

申请日：2001-07-09

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B1514

CPC classification number: H04N5/2254 ,  G02B15/177 ,  G02B26/023

Abstract: An electronic picture taking apparatus comprises a zoom lens system and an image pickup device. The zoom lens system has a type of movement suitable for stable, high performance in the range from infinite to near distance and being thoroughly reduced the thickness. The zoom lens system comprises at least four lens units. A foremost first lens unit on the object side of said zoom lens system has a negative refractive power. Each of three consecutive lens units has variable space on the image side thereof between an adjacent lens unit for performing a zooming operation. A rearmost lens unit of the zoom lens system consists of a single positive lens element having an aspherical surface and being fixed during the zooming operation. The zoom lens system includes an aperture stop moving incorporated with the second lens unit which is adjacent to the first lens unit. The electronic picture taking apparatus satisfies the following condition: 1.5

Abstract translation: 电子摄像装置包括变焦透镜系统和图像拾取装置。 变焦透镜系统具有适合于从无限到近距离范围内的稳定，高性能的运动的类型，并且彻底地减小厚度。 变焦透镜系统包括至少四个透镜单元。 在所述变焦透镜系统的物体侧上的最前面的第一透镜单元具有负折光力。 三个相继的透镜单元中的每一个在其相邻透镜单元之间的图像侧上具有可变空间，用于执行缩放操作。 变焦透镜系统的最后的透镜单元由具有非球面的单个正透镜元件组成，并且在变焦操作期间被固定。 变焦透镜系统包括与第一透镜单元相邻的第二透镜单元结合的孔径光阑移动。 电子摄像装置满足以下条件：其中L2是从广角端到望远端进行变焦操作时第二透镜单元在其光轴方向上的移动量，Y是 图像拾取装置的有效图像接收区域的对角线。

公开(公告)号：US06314242B1

公开(公告)日：2001-11-06

申请号：US09408187

申请日：1999-09-29

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G03B1324

CPC classification number: G02B23/14

Abstract: A single-lens reflex view finder wherein a partial amount of a light bundle transmitting through an imaging optical system which picks up an image of an object is split by optical path splitting means, one of split optical paths is used as a view finder optical path end focus confirming means is disposed only on a central portion of a refracting surface which is disposed at a location of an optional image formed in the view finder optical path.

Abstract translation: 单透镜反光取景器，其中通过光学分离装置分离通过拾取物体的图像的成像光学系统传输的部分量的光束，分割光路中的一个被用作取景器光路 端部焦点确认装置仅设置在折射表面的设置在取景器光路中形成的可选图像的位置的中心部分上。

公开(公告)号：US6091910A

公开(公告)日：2000-07-18

申请号：US255715

申请日：1999-02-23

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B25/00 ,  G03B13/06 ,  G03B13/02

CPC classification number: G03B13/06

Abstract: A finder for single-lens reflex type digital cameras includes a reflecting plane for splitting a light beam from an imaging optical system of a camera into two beams directed toward an image sensor and a finder system, a prism system for erecting an image, and an ocular optical system. The prism system has an entrance surface, a reflecting surface consisting of one plane, a reflecting surface of roof shape, and an exit surface. An optical path between the entrance surface and the reflecting surface consisting of one plane is practically perpendicular to an optical path between the reflecting surface of roof shape and the exit surface in the prism block.

Abstract translation: 用于单镜头反射型数字照相机的取景器包括用于将来自相机的成像光学系统的光束分解成朝向图像传感器和取景器系统的两个光束的反射平面，用于竖立图像的棱镜系统，以及 眼科系统。 棱镜系统具有入射面，由一平面构成的反射面，屋顶形状的反射面和出射面。 入射面与由一个平面组成的反射面之间的光路实际上垂直于顶板形状的反射面与棱镜块的出射面之间的光路。