公开(公告)号：US07486446B2

公开(公告)日：2009-02-03

申请号：US11784808

申请日：2007-04-09

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：US07436599B2

公开(公告)日：2008-10-14

申请号：US10142219

申请日：2002-05-10

Applicant: Shinichi Mihara ,  Hirokazu Konishi ,  Toyoharu Hanzawa ,  Masahito Watanabe ,  Atsujiro Ishii ,  Tetsuhide Takeyama ,  Ayami Imamura

Inventor： Shinichi Mihara ,  Hirokazu Konishi ,  Toyoharu Hanzawa ,  Masahito Watanabe ,  Atsujiro Ishii ,  Tetsuhide Takeyama ,  Ayami Imamura

IPC: G02B15/14 ,  G02B17/00

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.

公开(公告)号：US07403340B2

公开(公告)日：2008-07-22

申请号：US11716306

申请日：2007-03-08

Applicant: Keisuke Ichikawa ,  Shinichi Mihara

Inventor： Keisuke Ichikawa ,  Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: A zoom optical system has, in order from the object side, a first lens unit with negative refracting power, including a single lens component; a second lens unit with positive refracting power, simply moved toward the object side when the magnification of the zoom optical system is changed in the range from a wide-angle position to a telephoto position; a third lens unit with negative refracting power; and a fourth lens unit with positive refracting power. In focusing on an object point separated at least 300 times a focal length at the wide-angle position, when the magnification is changed in the range from the wide-angle position to the telephoto position, the third lens unit and the fourth lens unit are moved together so that a relative spacing between the third lens unit and the fourth lens unit is widened or the fourth lens unit approaches an imaging point.

公开(公告)号：US07380998B2

公开(公告)日：2008-06-03

申请号：US11790984

申请日：2007-04-30

Applicant: Shinichi Mihara ,  Masahito Watanabe ,  Tomoyuki Satori ,  Toyoharu Hanzawa ,  Shigeru Kato

Inventor： Shinichi Mihara ,  Masahito Watanabe ,  Tomoyuki Satori ,  Toyoharu Hanzawa ,  Shigeru Kato

IPC: G03B9/08 ,  H04N5/228

CPC classification number: G02B15/173 ,  G02B5/04 ,  G02B5/08 ,  G02B15/177 ,  G02B27/646 ,  H04N13/218

Abstract: An image pickup apparatus comprising a first lens unit which comprises at least a negative lens element and at least a positive lens element and has negative refractive power, a second lens unit which has positive refractive power, and an optical path bending reflecting optical element which has a variable reflecting surface disposed in an airspace between a most object side lens component of the first lens unit and a most object side lens component of the second lens unit. This image pickup apparatus changes a magnification by moving the second lens unit along an optical axis and corrects a deviation of an image location by varying a shape of the variable reflecting surface of the reflecting optical element.

Abstract translation: 一种图像拾取装置，包括第一透镜单元，该第一透镜单元至少包括负透镜元件和至少正透镜元件并具有负折光力，具有正屈光力的第二透镜单元和具有正折射光焦度的光路弯曲反射光学元件， 设置在第一透镜单元的最物体侧透镜部件和第二透镜单元的最物体侧透镜部件之间的空间中的可变反射面。 该图像拾取装置通过沿着光轴移动第二透镜单元来改变放大率，并且通过改变反射光学元件的可变反射表面的形状来校正图像位置的偏差。

公开(公告)号：US20080117526A1

公开(公告)日：2008-05-22

申请号：US11726536

申请日：2007-03-21

Applicant: Keisuke Ichikawa ,  Shinichi Mihara

Inventor： Keisuke Ichikawa ,  Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: A zoom optical system has, in order from the object side, a first lens unit with negative refracting power, including one biconcave-shaped lens component, a second lens unit with positive refracting power, a third lens unit with negative refracting power, and a fourth lens unit with positive refracting power. When the magnification of the zoom optical system is changed, relative distances between individual lens units are varied and the zoom optical system satisfies the following condition: 0.2≦dCD/fw≦1.2 where dCD is spacing between the third lens unit and the fourth lens unit on the optical axis in infinite focusing at a wide-angle position and fw is the focal length of the entire system of the zoom optical system at the wide-angle position.

Abstract translation: 变焦光学系统按照从物体侧开始具有负折射率的第一透镜单元，包括一个双凹透镜组件，具有正折射力的第二透镜单元，具有负折射光焦度的第三透镜单元，以及 具有正折射力的第四透镜单元。 当变焦光学系统的放大倍数变化时，各个透镜单元之间的相对距离变化，并且变焦光学系统满足以下条件：<？in-line-formula description =“In-line Formula”end =“lead”？ > 0.2 <= d / fw <= 1.2 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中d < 是广角位置处的无限聚焦的第三透镜单元和第四透镜单元之间的光轴上的间隔，fw是变焦光学系统在广角位置的整个系统的焦距。

公开(公告)号：US20070258711A1

公开(公告)日：2007-11-08

申请号：US11790984

申请日：2007-04-30

Applicant: Shinichi Mihara ,  Masahito Watanabe ,  Tomoyuki Satori ,  Toyoharu Hanzawa ,  Shigeru Kato

Inventor： Shinichi Mihara ,  Masahito Watanabe ,  Tomoyuki Satori ,  Toyoharu Hanzawa ,  Shigeru Kato

IPC: G03B17/00

CPC classification number: G02B15/173 ,  G02B5/04 ,  G02B5/08 ,  G02B15/177 ,  G02B27/646 ,  H04N13/218

Abstract: An image pickup apparatus comprising a first lens unit which comprises at least a negative lens element and at least a positive lens element and has negative refractive power, a second lens unit which has positive refractive power, and an optical path bending reflecting optical element which has a variable reflecting surface disposed in an airspace between a most object side lens component of the first lens unit and a most object side lens component of the second lens unit. This image pickup apparatus changes a magnification by moving the second lens unit along an optical axis and corrects a deviation of an image location by varying a shape of the variable reflecting surface of the reflecting optical element.

Abstract translation: 一种图像拾取装置，包括第一透镜单元，该第一透镜单元至少包括负透镜元件和至少正透镜元件并具有负折光力，具有正屈光力的第二透镜单元和具有正折射光焦度的光路弯曲反射光学元件， 设置在第一透镜单元的最物体侧透镜部件和第二透镜单元的最物体侧透镜部件之间的空间中的可变反射面。 该图像拾取装置通过沿着光轴移动第二透镜单元来改变放大率，并且通过改变反射光学元件的可变反射表面的形状来校正图像位置的偏差。

公开(公告)号：US07289152B2

公开(公告)日：2007-10-30

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: G03B13/00 ,  H04N5/232 ,  G02B15/14

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).

Abstract translation: 本发明使得从变焦模式和透镜元件的适当选择变得如此薄，使得每个透镜组的厚度可以减小，从而使透视度变差的变焦透镜，因此电子图像拾取系统。 电子摄像系统，位于变焦透镜的像面侧的变焦透镜和电子摄像装置。 变焦透镜从物体侧依次包括包括两个透镜部件并且具有大体负功率的第一透镜组G 1和包括两个透镜部件并且具有大体正的光焦度的第二透镜组G 2。 可以通过改变第一透镜组G 1和第二透镜组G 2之间的空气间隔来改变变焦透镜的焦距。 变焦镜头应满足条件（a）至（n）中的至少一个。

公开(公告)号：US07177094B2

公开(公告)日：2007-02-13

申请号：US10406497

申请日：2003-04-04

Applicant: Shinichi Mihara ,  Ayami Imamura

Inventor： Shinichi Mihara ,  Ayami Imamura

IPC: G02B15/177

CPC classification number: G02B15/177

Abstract: The invention relates to a zoom lens that has high optical performance specifications such as high zoom ratios, wide angles of view, reduced F-numbers and limited aberrations, and enables an optical path to be easily bent. The zoom lens comprises a moving lens group B(G2) that has positive refracting power and moves only toward the object side upon zooming from the wide-angle end to the telephoto end, and a lens group A(G1) remaining fixed during zooming, which is located on the object side of the zoom lens with respect to the moving lens group B and has negative refracting power. The moving lens group B is composed of, in order from its object side, a positive lens element, a positive lens element and a negative lens element, three lens elements in all.

Abstract translation: 本发明涉及具有高变焦比，宽视角，减少的F数和有限像差等高光学性能指标的变焦透镜，并且使得光路容易弯曲。 变焦透镜包括具有正折射力的移动透镜组B（G 2），并且在从广角端到远摄端的变焦时仅朝向物体侧移动，并且透镜组A（G 1）在 相对于移动透镜组B位于变焦透镜的物体侧的变焦，具有负的折射力。 移动透镜组B从其物体侧依次包括正透镜元件，正透镜元件和负透镜元件，三个透镜元件。

公开(公告)号：US20070030368A1

公开(公告)日：2007-02-08

申请号：US11545585

申请日：2006-10-11

Applicant: Shinichi Mihara ,  Hisashi Goto ,  Yuji Miyauchi ,  Toyoharu Hanzawa ,  Masahiro Imamura ,  Yuko Kobayashi ,  Tsutomu Uzawa ,  Toshihide Nozawa ,  Takuji Horie ,  Kouki Hozumi

Inventor： Shinichi Mihara ,  Hisashi Goto ,  Yuji Miyauchi ,  Toyoharu Hanzawa ,  Masahiro Imamura ,  Yuko Kobayashi ,  Tsutomu Uzawa ,  Toshihide Nozawa ,  Takuji Horie ,  Kouki Hozumi

IPC: H04N9/04

CPC classification number: H04N9/045 ,  G01J3/502 ,  G02B5/04 ,  G02B5/201 ,  G02B13/18 ,  G02B15/161 ,  G02B15/177 ,  G02B26/007 ,  G02B27/1013 ,  G02B27/141 ,  G02B27/144 ,  G02B27/145 ,  H04N5/2251 ,  H04N5/2351

Abstract: An optical system is presented that enables images of a wide range of natural subjects to be well reproduced with their colors, and provides an image pickup system including, at least, an image pickup optical system, an electronic image pickup device having three or more different spectral characteristics to obtain a color image, and a controller for implementing signal processing or image processing on the basis of an output from the electronic image pickup device. The optical element that takes part in determining the focal length in the image pickup system includes an optical element making use of a refraction phenomenon alone. The 400-nm wavelength input/output ratio is 10% or less with respect to an input-output ratio for a 400-nm to 800-nm wavelength at which an output signal strength ratio with respect to an input quantity of light is highest when the input quantity of light is defined by the quantity of a light beam emanating from the same object point and entering the image pickup optical system and the output signal strength is defined by the strength of a signal produced from the controller in response to the light beam.

Abstract translation: 本发明提出了一种使得各种自然科目的图像能够以其颜色良好再现的光学系统，并提供一种图像拾取系统，其至少包括摄像光学系统，具有三个或更多个不同的电子图像拾取装置 获得彩色图像的光谱特性，以及基于来自电子图像拾取装置的输出实现信号处理或图像处理的控制器。 参与确定图像拾取系统中的焦距的光学元件包括仅使用折射现象的光学元件。 相对于400nm至800nm波长的输入输出比，对于输入光量的输出信号强度比最高时，400nm波长输入/输出比为10％以下 光的输入量由从同一物体点发射并进入摄像光学系统的光束的量定义，并且输出信号强度由响应于光束的从控制器产生的信号的强度来定义 。

公开(公告)号：US20070024725A1

公开(公告)日：2007-02-01

申请号：US11543855

申请日：2006-10-06

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N9/04

CPC classification number: H04N9/045 ,  G01J3/502 ,  G02B5/04 ,  G02B5/201 ,  G02B13/18 ,  G02B15/161 ,  G02B15/177 ,  G02B26/007 ,  G02B27/1013 ,  G02B27/141 ,  G02B27/144 ,  G02B27/145 ,  H04N5/2251 ,  H04N5/2351

Abstract: An optical system enables images of a wide range of natural subjects to be well reproduced with their colors, and provides an image pickup system including, at least, an image pickup optical system, an electronic image pickup device having three or more different spectral characteristics to obtain a color image, and a controller for implementing signal processing or image processing on the basis of an output from the electronic image pickup device. The optical element that takes part in the determination of a focal length in said image pickup system includes an optical element making use of a refraction phenomenon alone. The 400-nm wavelength input/output ratio is 10% or less with respect to an input-output ratio for a 400-nm to 800-nm wavelength at which an output signal strength ratio with respect to an input quantity of light is highest when the input quantity of light is defined by the quantity of a light beam emanating from the same object point and entering the image pickup optical system and the output signal strength is defined by the strength of a signal produced from the controller in response to the light beam.

Abstract translation: 一种光学系统使得各种自然对象的图像能够以其颜色良好地再现，并且提供一种图像拾取系统，至少包括图像拾取光学系统，具有三个或更多个不同光谱特性的电子图像拾取装置， 获得彩色图像，以及用于基于来自电子图像拾取装置的输出实现信号处理或图像处理的控制器。 参与所述图像拾取系统中的焦距的确定的光学元件包括仅使用折射现象的光学元件。 相对于400nm至800nm波长的输入输出比，相对于输入光量的输出信号强度比最高时，400nm波长输入/输出比为10％以下 光的输入量由从同一物体点发射并进入摄像光学系统的光束的量定义，并且输出信号强度由响应于光束的从控制器产生的信号的强度来定义 。