公开(公告)号：US20120092776A1

公开(公告)日：2012-04-19

申请号：US13311314

申请日：2011-12-05

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

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。

公开(公告)号：US08149522B2

公开(公告)日：2012-04-03

申请号：US13066062

申请日：2011-04-05

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B13/18 ,  G02B3/02

CPC classification number: G02B15/14 ,  G02B13/004

Abstract: There is provided an image forming optical system in which, it is possible to achieve both, the small-sizing and slimming of an optical system, and a favorable correction of various aberrations, mainly the chromatic aberration.In an image forming optical system including a lens component in which, a shape of another optical surface C of an intermediate layer L2 which is made of a transparent material having Abbe's number νd2 which is in a close contact with one optical surface B of a lens L1 which is made of a transparent material having Abbe's number νd1, is an aspheric shape differing from (a shape of) the optical surface B, and furthermore, a lens L3 which is made of a transparent material having Abbe's number νd3 is in a close contact with the optical surface C, the following conditions are satisfied 0.012

Abstract translation: 提供了一种成像光学系统，其中可以实现光学系统的小尺寸和减薄，以及各种像差的良好校正，主要是色差。 在包括透镜部件的图像形成光学系统中，其中，由具有阿贝数ngr d2的透明材料制成的中间层L2的另一个光学表面C的形状与一个光学表面B紧密接触 由具有阿贝数ngr d1的透明材料制成的透镜L1是与光学面B的形状不同的非球面形状，此外，透镜L3由具有阿贝数ngr的透明材料制成 ; d3与光学表面C紧密接触，满足以下条件：0.012 <1 /＆ngr; d3-1 /＆ngr; d1 <0.090（1）0.010 <1 /＆lt; ngr; d3-1 /＆ngr; d2 2）其中，＆ngr; d1表示透镜L1的阿贝数，＆ngr; d2表示中间层L2的阿贝数，＆ngr; d3表示透镜L3的阿贝数。

公开(公告)号：US20110285896A1

公开(公告)日：2011-11-24

申请号：US13068707

申请日：2011-05-18

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N5/232 ,  G02B15/14

CPC classification number: G02B15/173 ,  G03B19/14

Abstract: In an image forming optical system which includes in order from an object side, a first lens group G1 having a positive refractive power, a second lens group G2 having a negative refractive power, a third lens group G3 having a positive refractive power, and a fourth lens group G4, and which includes maximum of five lens groups, and at the time of zooming from a wide angle end to a telephoto end, when a focal length of the overall image forming optical system is in a range of 1.2 fw to 1.8 fw, the first lens group G1 moves to be positioned more toward the object side than a position at the wide angle end, in a rectangular coordinate system in which, a horizontal axis is let to be νd(LA) and a vertical axis is let to be nd(LA), when a straight line expressed by nd(LA)=a×Δd(LA)+b(LA)(provided that a=−0.0267) is set, the image forming optical system satisfies a predetermined conditional expression.

Abstract translation: 在从物体侧依次包括具有正折光力的第一透镜组G1，具有负折光力的第二透镜组G2，具有正折光力的第三透镜组G3和 第四透镜组G4，并且其包括最多五个透镜组，并且在从广角端到远摄端的变焦时，当整个图像形成光学系统的焦距在1.2fw至1.8的范围内时 在第一透镜组G1移动到比广角端处的位置更靠近物体侧的矩形坐标系中，在垂直坐标系中，水平轴被设置为“n”; d（LA）和垂直轴 设为nd（LA），当设置由nd（LA）= a×＆Dgr; d（LA）+ b（LA）表示的直线（条件是a = -0.0267）时，成像光学系统满足 预定的条件表达式。

公开(公告)号：US20110134266A1

公开(公告)日：2011-06-09

申请号：US12931480

申请日：2011-02-02

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N5/228 ,  G02B13/18

CPC classification number: G02B15/173 ,  G02B13/18

Abstract: To provide an image forming optical system that can achieve good correction of chromatic aberration, which is seriously needed particularly when the zoom ratio is high, while achieving slimness and a high zoom ratio and to provide an electronic image pickup apparatus equipped with such an image forming optical system, an image forming optical system has a lens group A including a lens component made up of a positive lens LA and a negative lens LB cemented together and having a negative refracting power as a whole. The lens group A is arranged between a lens group I closest to the object side and an aperture stop. The distance between the lens group I and the lens group A changes for zooming. The lens component has an aspheric cemented surface, and a certain condition concerning the shape of the aspheric surface is satisfied.

Abstract translation: 为了提供能够实现色像差的良好校正的图像形成光学系统，特别是当变焦比高时，特别是在实现纤度和高变焦比的同时，提供了一种配备有这种图像形成的电子摄像装置 光学系统中，成像光学系统具有透镜组A，透镜组A包括由正透镜LA和负透镜LB组成的透镜组件，该透镜组件整体上具有负的折射光焦度。 透镜组A布置在最靠近物体侧的透镜组I和孔径光阑之间。 透镜组I与透镜组A之间的距离发生变化。 透镜部件具有非球面胶合表面，并且满足关于非球面形状的一定条件。

公开(公告)号：US07848030B2

公开(公告)日：2010-12-07

申请号：US11991904

申请日：2006-09-11

Applicant: Shinichi Mihara ,  Kanato Adachi ,  Keisuke Ichikawa ,  Yasunobu Iga ,  Koji Matsumoto ,  Kazuaki Murayama ,  Keigo Matsuo ,  Hideki Nagata

Inventor： Shinichi Mihara ,  Kanato Adachi ,  Keisuke Ichikawa ,  Yasunobu Iga ,  Koji Matsumoto ,  Kazuaki Murayama ,  Keigo Matsuo ,  Hideki Nagata

IPC: G02B15/14 ,  G02B9/04

CPC classification number: G02B15/161 ,  G02B5/005

Abstract: In an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group being disposed at an image-plane side of the aperture stop and having a cemented lens, and when a straight line indicated by Nd=α×νd+β (where, α=−0.017) is set, Nd and νd of at least one lens forming the cemented lens are included in both an area which is determined by a line when a lower limit value is in a range of a following conditional expression (1), and a line when an upper limit value is in a range of the following conditional expression (1), and in an area determined by following conditional expressions (2) and (3) 1.45

Abstract translation: 在具有正透镜组，负透镜组和孔径光阑的图像形成光学系统中，正透镜组设置在孔径光阑的像平面侧并且具有胶合透镜，并且当指示直线时 通过Nd =α×＆ngr; d +＆bgr; （其中，α= -0.017），形成胶合透镜的至少一个透镜的Nd和＆ngr; d包括在下限值在以下条件的范围内由线确定的区域 表示（1），以及当上限值在以下条件表达式（1）的范围内的行，并且在由以下条件表达式（2）和（3）确定的区域中：1.45 <＆bgr; <2.15（1 ）1.30

公开(公告)号：US07605859B2

公开(公告)日：2009-10-20

申请号：US11543855

申请日：2006-10-06

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N5/232 ,  H04N5/225

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，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：US07535652B2

公开(公告)日：2009-05-19

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 <= dCD / fw <= 1.2 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中dCD是光轴上第三透镜单元与第四透镜单元之间的间距 在广角位置处无限聚焦，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：US20080192361A1

公开(公告)日：2008-08-14

申请号：US11485336

申请日：2006-07-13

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/173 ,  G02B5/04

Abstract: The invention relates to a zoom lens with an easily bendable optical path, which has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. The zoom lens comprises a first lens group G1 that remains fixed during zooming, a second lens group G2 that has negative refracting power and moves during zooming, a third lens group G3 that has positive refracting power and moves during zooming, and a fourth lens group G4 that has positive refracting power and moves during zooming and focusing. The first lens group comprises, in order from an object side thereof, a negative meniscus lens component convex on an object side thereof, a reflecting optical element for bending an optical path and a positive lens. Upon focusing on an infinite object point, the fourth lens group G4 moves in a locus opposite to that of movement of the third lens group G3 during zooming.

Abstract translation: 本发明涉及具有易弯曲光路的变焦透镜，其具有高的光学规格性能，例如高变焦比，广角排列，小F数和减小的像差。 变焦透镜包括在变焦期间保持固定的第一透镜组G 1，具有负折射力并在变焦期间移动的第二透镜组G 2，具有正折射能并在变焦期间移动的第三透镜组G 3，以及 第四透镜组G 4具有正折射力并且在变焦和聚焦期间移动。 第一透镜组从物体侧依次包括在其物体侧凸出的负弯月形透镜部件，用于弯曲光路的反射光学元件和正透镜。 在聚焦于无限物体点时，第四透镜组G 4在变焦期间在与第三透镜组G 3的移动相反的轨迹上移动。

公开(公告)号：US07301576B2

公开(公告)日：2007-11-27

申请号：US10753356

申请日：2004-01-09

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N5/225

CPC classification number: H04N5/2254

Abstract: 1. An electronic imaging apparatus comprises an imaging optical system, and an imaging device which converts an object image obtained via the imaging system to an electric signal. All of medium of optical elements which is disposed in a space between a most object side of the imaging system and the imaging device is constituted with optically isotropic medium. A diameter of a point image at the open F value of the imaging system is bigger than a pitch of a picture element. The following condition is satisfied; F>1.4·a(0

Abstract translation: 1.一种电子成像装置，包括成像光学系统和将经由成像系统获得的物体图像转换为电信号的成像装置。 设置在成像系统的最物体侧和成像装置之间的空间中的光学元件的所有介质由光学各向同性介质构成。 成像系统的开F值处的点图像的直径大于像素的间距。 满足以下条件; <？in-line-formula description =“In-line Formulas”end =“lead”？> F> 1.4.a（0 其中F表示成像光学系统的开放F值，a表示成像装置的水平或垂直方向的间距。

公开(公告)号：US07289273B2

公开(公告)日：2007-10-30

申请号：US11076236

申请日：2005-03-10

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14 ,  G02B13/18

CPC classification number: G02B15/177

Abstract: A zoom lens includes, in order from the object side, the first lens unit consisting of one negative lens component in which a plurality of lens components are cemented to one another and the second lens unit including one negative lens component and having positive refracting power as a whole. In this case, the zoom lens satisfies the following condition: 0.15

Abstract translation: 变焦透镜从物体的顺序包括第一透镜单元，其由多个透镜部件彼此粘合的一个负透镜部件和包括一个负透镜部件并具有正折射能力的第二透镜单元组成 整个。 在这种情况下，变焦镜头满足以下条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.15 / fw < ？in-line-formula description =“In-line Formulas”end =“tail”？>其中t <1> 是第一透镜单元沿着光轴测量的厚度，而fw是 整个系统的焦距在变焦镜头的广角位置。