公开(公告)号：US20110102625A1

公开(公告)日：2011-05-05

申请号：US12974848

申请日：2010-12-21

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: H04N5/228 ,  G02B9/10 ,  G02B15/14

CPC classification number: G02B13/18 ,  G02B15/173 ,  G03B17/17

Abstract: An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group is disposed at an object side of the aperture stop, the positive lens group has a cemented lens which is formed by cementing a plurality of lenses, 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 is 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 (1a), and a line when an upper limit value is in a range of the following conditional expression (1a), and of an area determined by following conditional expressions (2a) and (3a). 1.45

Abstract translation: 根据本发明的图像形成光学系统的特征在于，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，正透镜组设置在孔的物体侧 停止时，正透镜组具有通过固定多个透镜而形成的胶合透镜，在垂直坐标系中，使水平轴为Nd，纵轴为垂直轴为d 线表示为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包括在两个区域中，即当下限值在一个范围内时由线确定的区域 （1a），以及当上限值在以下条件表达式（1a）的范围内时的行以及由以下条件表达式（2a）和（3a）确定的面积的行。 1.45 <＆bgr <2.15（1a）1.30

公开(公告)号：US07787029B2

公开(公告)日：2010-08-31

申请号：US11260736

申请日：2005-10-27

Applicant: Nobuyuki Watanabe ,  Fumiyuki Shiratani ,  Noriyuki Iyama ,  Shinichi Mihara ,  Hiroyuki Minakata

Inventor： Nobuyuki Watanabe ,  Fumiyuki Shiratani ,  Noriyuki Iyama ,  Shinichi Mihara ,  Hiroyuki Minakata

IPC: H04N5/262 ,  H04N5/232 ,  H04N5/235

CPC classification number: H04N5/2628 ,  H04N5/3454 ,  H04N5/3456

Abstract: An imaging apparatus comprises an optical magnification changing mechanism which optically changes a magnification of an image, and an electronic magnification changing mechanism which reduces or expands a magnification with respect to image data by signal processing, the imaging apparatus providing a magnification-changed image according to a predetermined magnification based on the optical magnification changing mechanism and the electronic magnification changing mechanism. The optical magnification changing mechanism has at least two magnifications W and T (W

Abstract translation: 一种成像装置包括光学变化图像的倍率的光学倍率改变机构，以及通过信号处理来减小或扩大相对于图像数据的放大率的电子倍率改变机构，所述成像装置提供根据 基于光学倍率变化机构和电子倍率变化机构的预定倍率。 光学倍率改变机构具有彼此离散的至少两个放大率W和T（W

公开(公告)号：US07580622B2

公开(公告)日：2009-08-25

申请号：US11260735

申请日：2005-10-27

Applicant: Nobuyuki Watanabe ,  Fumiyuki Shiratani ,  Noriyuki Iyama ,  Shinichi Mihara ,  Hiroyuki Minakata

Inventor： Nobuyuki Watanabe ,  Fumiyuki Shiratani ,  Noriyuki Iyama ,  Shinichi Mihara ,  Hiroyuki Minakata

IPC: G03B17/00

CPC classification number: H04N5/232 ,  G02B7/102 ,  H04N5/23296 ,  H04N5/2628

Abstract: An imaging apparatus comprises an optical magnification changing mechanism which optically changes a magnification of an image, and an electronic magnification change mechanism which reduces or expands a magnification with respect to image data by signal processing. The optical magnification changing mechanism is configured so that a magnification is discrete and a focal position changes together with a focal distance. The electronic magnification change mechanism carries out an interpolation process such that the number of pixels is increased with respect to a predetermined region of read image data during an expanding process, and carried out a process for discretely sampling a wide region as compared with a readout region obtained by the sampling provided when no magnification conversion is made, during a reducing process, thereby offsetting a change of the focal position in the optical magnification changing mechanism.

Abstract translation: 成像装置包括光学变化图像的倍率的光学倍率改变机构和通过信号处理相对于图像数据减小或扩大放大率的电子倍率改变机构。 光学倍率改变机构被配置为使得放大率离散并且焦点位置与焦距一起改变。 电子倍率变化机构执行插值处理，使得在扩展处理期间相对于读取图像数据的预定区域的像素数量增加，并且与读出区域相比进行用于离散采样宽区域的处理 通过在不进行放大转换的情况下提供的采样获得，在减少处理期间，从而抵消光学倍率改变机构中的焦点位置的变化。

公开(公告)号：US20090195888A1

公开(公告)日：2009-08-06

申请号：US11991919

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 ,  G02B17/08

CPC classification number: G02B13/18 ,  G02B15/173 ,  G03B17/17

Abstract: An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group is disposed at an object side of the aperture stop, the positive lens group has a cemented lens which is formed by cementing a plurality of lenses, 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 is 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 (1a), and a line when an upper limit value is in a range of the following conditional expression (1a), and of an area determined by following conditional expressions (2a) and (3a). 1.45

Abstract translation: 根据本发明的图像形成光学系统的特征在于，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，正透镜组设置在孔的物体侧 停止时，正透镜组具有通过固定多个透镜而形成的胶合透镜，在直线坐标系中，水平轴为Nd，垂直轴为nud，直线指示 通过Nd = alphaxnud +β（其中，α= -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，即由下限值 在下面的条件表达式（1a）的范围内，并且当上限值在下面的条件表达式（1a）的范围内的行以及由以下条件表达式（2a）和（3a）确定的面积时， 。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 1.45 <？in-line-formula description =“In-line Formulas”end =“lead”？> 1.30 <？in-line-formula description =”In-line Formulas“end =”lead“？> 3 这里，Nd表示折射率，nud表示阿贝数。

公开(公告)号：US20080266672A1

公开(公告)日：2008-10-30

申请号：US12080674

申请日：2008-04-04

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：US07436449B2

公开(公告)日：2008-10-14

申请号：US10618675

申请日：2003-07-15

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: H04N7/00

CPC classification number: G02B15/14

Abstract: The invention relates to an electronic imaging system such a video camera or digital camera, whose thickness or size is reduced while performance degradation is reduced as much as possible. The system comprises a zoom lens system comprising a first G1, a second G2, a third G3 and a fourth lens group G4 and an aperture stop S, and an electronic image pickup device located on its image side I and covered with a cover glass CG. The image of a subject is formed on the photoreceptive surface of the electronic image pickup device for conversion into electric signals. The system satisfies the following conditions (1) and (2). a≦4 μm  (1) F>a  (2) Here a is the horizontal pixel pitch in μm of the electronic image pickup device and F is the F-number of the zoom lens system at its wide-angle end.

Abstract translation: 本发明涉及一种电子成像系统，例如摄像机或数码相机，其厚度或尺寸减小，而性能下降尽可能地降低。 该系统包括变焦透镜系统，包括第一G 1，第二G 2，第三G 3和第四透镜组G 4以及孔径光阑S，以及位于其像侧I上并被覆盖的电子摄像装置 盖玻璃CG。 被摄体的图像形成在电子摄像装置的感光面上，用于转换为电信号。 该系统满足以下条件（1）和（2）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> a <= 4 mum（1）<？in-line-formula description =“In-line Formulas”end =“tail” ？> <？in-line-formula description =“In-line Formulas”end =“lead”？> F> a（2）<？in-line-formula description =“In-line Formulas”end =“tail” 这里a是电子摄像装置的母体的水平像素间距，F是变焦透镜系统的广角端的F数。

公开(公告)号：US07432974B2

公开(公告)日：2008-10-07

申请号：US11543856

申请日：2006-10-06

Applicant: Shinichi Mihara ,  Toyoharu Hanzawa ,  Toshihide Nozawa

Inventor： Shinichi Mihara ,  Toyoharu Hanzawa ,  Toshihide Nozawa

IPC: H04N5/232 ,  H04N5/225 ,  G02B5/18 ,  G02B21/02 ,  G02B15/14

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：US07403345B2

公开(公告)日：2008-07-22

申请号：US11726528

申请日：2007-03-21

Applicant: Keisuke Ichikawa ,  Shinichi Mihara

Inventor： Keisuke Ichikawa ,  Shinichi Mihara

IPC: G02B9/34 ,  G02B15/14

CPC classification number: G02B15/177

Abstract: A zoom optical system comprises in order from an object side, the first lens group consisting of one cemented lens in which each of the surfaces contacted with air is aspherical, and having negative refracting power as a whole, the second lens group consisting of one positive single lens and one cemented lens, and having positive refracting power as a whole, the third lens group of one negative lens having an aspherical surface, and the fourth lens group consisting of one positive lens having an aspherical surface. When magnification is carried out, each of the lens groups is moved while changing each relative distance among the lens groups.

Abstract translation: 变焦光学系统包括从物体侧开始的第一透镜组，其中与空气接触的每个表面是非球面的一个胶合透镜，并且整体具有负的折射力，第二透镜组由一个正的 单透镜和一个胶合透镜，并且整体具有正折射力，一个负透镜的第三透镜组具有非球面，第四透镜组由具有非球面的一个正透镜组成。 当进行放大时，在改变透镜组之间的每个相对距离的同时移动每个透镜组。

公开(公告)号：US07403329B2

公开(公告)日：2008-07-22

申请号：US10776590

申请日：2004-02-12

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B5/20

CPC classification number: H04N1/028 ,  G02B15/177 ,  G02F1/153 ,  H04N2201/02458 ,  H04N2201/0246 ,  H04N2201/02462

Abstract: The electronic imaging apparatus comprises a first optical element A having a flat surface and a surface with refracting power, chemical substance which enables to change light transmittance by chemical change according to electric quantity, a second optical element having a transparent surface and a flat surface, and an optical system having an optical component arranged so as to sandwich the chemical substance by a surface of the first optical element and a surface of the second optical element. Here the spectrum transmittance at whole range of τmin≦τ520≦τmax satisfies the following conditions when the whole transmittance of the first optical element, the chemical substance and the second optical element at the wavelength of 520 nm is τ520, 0.70

Abstract translation: 电子成像装置包括具有平坦表面和具有折射力的表面的第一光学元件A，其能够通过根据电量的化学变化而改变透光率的化学物质，具有透明表面和平坦表面的第二光学元件， 以及具有被配置为通过第一光学元件的表面和第二光学元件的表面夹着化学物质的光学部件的光学系统。 这里，当波长520nm处的第一光学元件，化学物质和第二光学元件的整体透射率为tau520时，Taumin的整个范围内的光谱透射率满足以下条件：λ< line-formula description =“In-line Formulas”end =“lead”？> 0.70 <？in -line-formula description =“In-line Formulas”end =“lead”？> 0.80 （x是数字）是波长为x nm的透射率。

公开(公告)号：US20080117525A1

公开(公告)日：2008-05-22

申请号：US11726528

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 comprises in order from an object side, the first lens group consisting of one cemented lens in which each of the surfaces contacted with air is aspherical, and having negative refracting power as a whole, the second lens group consisting of one positive single lens and one cemented lens, and having positive refracting power as a whole, the third lens group of one negative lens having an aspherical surface, and the fourth lens group consisting of one positive lens having an aspherical surface. When magnification is carried out, each of the lens groups is moved while changing each relative distance among the lens groups.

Abstract translation: 变焦光学系统包括从物体侧开始的第一透镜组，其中与空气接触的每个表面是非球面的一个胶合透镜，并且整体具有负的折射力，第二透镜组由一个正的 单透镜和一个胶合透镜，并且整体具有正折射力，一个负透镜的第三透镜组具有非球面，第四透镜组由具有非球面的一个正透镜组成。 当进行放大时，在改变透镜组之间的每个相对距离的同时移动每个透镜组。