公开(公告)号：US20110181758A1

公开(公告)日：2011-07-28

申请号：US13066062

申请日：2011-04-05

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N5/262 ,  G02B13/18 ,  G02B15/14

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：US07800830B2

公开(公告)日：2010-09-21

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: 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 includes a first lens group that remains fixed during zooming, a second lens group that has negative refracting power and moves during zooming, a third lens group that has positive refracting power and moves during zooming, and a fourth lens group that has positive refracting power and moves during zooming and focusing. The first lens group includes, 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 moves in a locus opposite to that of movement of the third lens group during zooming.

Abstract translation: 具有易弯曲光路的变焦透镜，其具有诸如高变焦比，广角排列，小F数和减小像差等高光学规格性能，包括在变焦期间保持固定的第一透镜组，第二透镜组 具有负折射力并在变焦期间移动的透镜组，具有正折射力并且在变焦期间移动的第三透镜组以及具有正折射力并在变焦和聚焦期间移动的第四透镜组。 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，第四透镜组在变焦期间在与第三透镜组的移动相反的轨迹上移动。

公开(公告)号：US20090279184A1

公开(公告)日：2009-11-12

申请号：US11991905

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 ,  G02B9/10

CPC classification number: G02B15/173 ,  G02B5/04 ,  H04N1/00307 ,  H04N2101/00 ,  H04N2201/0084

Abstract: In an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the negative lens group is disposed at an image side of the of the aperture stop, the negative lens group has a cemented lens which is formed by cementing a plurality of lenses, and in a rectangular coordinate system in which, a horizontal axis is let to be Nd and a vertical axis is let to be νd, 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 of areas namely, 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 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，负透镜组设置在孔径光阑的像侧，负透镜组具有形成的胶合透镜 通过固定多个透镜，并且在以Nd = alphaxnud +β（其中，α= 1）表示的直线为单位的水平轴为Nd，纵轴为nud的直角坐标系中， -0.017），形成胶合透镜的至少一个透镜的Nd和nud包括在两个区域中，即当下限值在下面的条件表达式（1）的范围内由线确定的区域 ），以及当上限值在以下条件表达式（1）的范围内时的行，以及由以下条件表达式（2）和（3）确定的面积。 1.45 <β1.330这里，Nd表示折射率，nud表示阿贝数。

公开(公告)号：US07420611B2

公开(公告)日：2008-09-02

申请号：US11503215

申请日：2006-08-14

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: H04N5/238

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：US07417684B2

公开(公告)日：2008-08-26

申请号：US11503120

申请日：2006-08-14

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: H04N5/238

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：US07414665B2

公开(公告)日：2008-08-19

申请号：US10619078

申请日：2003-07-15

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

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

IPC: H04N5/238

CPC classification number: G02B15/177 ,  H04N5/2254 ,  H04N5/238

Abstract: The invention relates to an imaging system in which, while high image quality is maintained with the influence of diffraction minimized, the quantity of light is controlled, and which enables the length of the zoom lens to be cut down. The imaging system comprises a zoom lens comprising a plurality of lens groups G1 and G2 wherein the spacing between individual lens groups is varied to vary a focal length and an aperture stop located in an optical path for limiting at least an axial light beam diameter, and an electronic image pickup device I located on the image side of the zoom lens. The aperture stop has a fixed shape, and a filter S2 for performing light quantity control by varying transmittance is located on an optical axis of a space located at a position different from that of a space in which the aperture stop is located.

Abstract translation: 本发明涉及一种成像系统，其中，尽管在衍射的影响下维持高图像质量最小化，但是光量被控制，并且能够缩小变焦镜头的长度。 该成像系统包括一个包括多个透镜组G 1和G 2的变焦透镜，其中改变各个透镜组之间的间距以改变焦距，并且位于光路中的孔径光阑用于限制至少轴向光束直径 以及位于变焦透镜的像侧的电子摄像装置I。 孔径光阑具有固定的形状，并且用于通过改变透射率进行光量控制的滤光器S2位于与孔径光阑所在的空间不同的位置的光轴上。

公开(公告)号：US20080117523A1

公开(公告)日：2008-05-22

申请号：US11717813

申请日：2007-03-13

Applicant: Keisuke Ichikawa ,  Shinichi Mihara

Inventor： Keisuke Ichikawa ,  Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: A zoom optical system comprises a lens group 1 having one negative lens component and a lens group 2 wherein a distance on the optical axis between the lens group 1 and the lens group 2 is changed for magnification purpose. The negative lens component consists of a cemented lens of positive lens and a negative lens, and when a straight line expressed by θgFp=αp×νdp+βp (αp=−0.00163) is set up in a rectangular coordinate system in which a horizontal axis is expressed by νdp and an vertical axis is expressed by θgFp, νdp and θgFp of the positive lens are included in domains specified by the following conditions. 0.6400

Abstract translation: 变焦光学系统包括具有一个负透镜部件的透镜组1和透镜组2，其中透镜组1和透镜组2之间的光轴上的距离为了放大目的而改变。 负透镜部件由正透镜的胶合透镜和负透镜组成，并且当在由垂直轴表示的直角坐标系中设置由tagFp = alphapxnudp + betap（alphap = -0.00163）表示的直线时 通过裸头和垂直轴由tagFp表示，正透镜的nudp和tagFp包含在由以下条件指定的域中。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.6400 ？in-line-formula description =“In-line Formulas”end =“lead”？> 3 theta gFp是正透镜L AP AP的部分色散（ng-nF）/（nF-nC）之比; 裸体是正透镜L AP AP的阿贝数（nd-1）/（nF-nC）; nd，nC，nF和ng分别是d，C，F和g线的折射率。

公开(公告)号：US07375902B2

公开(公告)日：2008-05-20

申请号：US11487481

申请日：2006-07-17

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/173 ,  G02B5/04

Abstract: A zoom lens with an easily bendable optical path has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. It includes a first lens group G1 remaining fixed during zooming, a second lens group G2 having negative refracting power and moving during zooming, a third lens group G3 having positive refracting power and moving during zooming, and a fourth lens group G4 having positive refracting power and moving 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: 具有易弯曲光路的变焦透镜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。 它包括在变焦期间保持固定的第一透镜组G 1，具有负屈光力并在变焦期间移动的第二透镜组G 2，具有正折射力并在变焦期间移动的第三透镜组G 3和第四透镜组G 4 具有正折射力并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：US20070188886A1

公开(公告)日：2007-08-16

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.

Abstract translation: 变焦透镜包括当变焦透镜的倍率改变并且执行聚焦操作时保持固定在光轴上的最物体侧透镜单元; 当执行聚焦操作时保持固定的最大图像侧透镜单元; 以及位于最物体侧透镜单元和最大像侧透镜单元之间的多个移动透镜单元，当放大率改变时沿着光轴移动。 最物体侧透镜单元从物体侧依次包括负透镜部件，具有用于弯曲光路的反射面的反射光学部件和正透镜部件。 最图像侧透镜单元具有至少一个非球面。 电子成像装置包括位于变焦透镜的像侧的电子图像传感器。

公开(公告)号：US07253834B2

公开(公告)日：2007-08-07

申请号：US10101636

申请日：2002-03-20

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

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

IPC: H04N5/228 ,  H04N5/225 ,  G02B27/64 ,  G02B5/10

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.