公开(公告)号：US20080117524A1

公开(公告)日：2008-05-22

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.

Abstract translation: 变焦光学系统从物体依次具有包括单个透镜部件的具有负折射率的第一透镜单元; 具有正折射力的第二透镜单元，当变焦光学系统的倍率在广角位置到远摄位置的范围内变化时，简单地向物体侧移动; 具有负折射力的第三透镜单元; 以及具有正折射力的第四透镜单元。 在聚焦于在广角位置处至少300倍焦距的对象点时，当在从广角位置到远摄位置的范围内变化时，第三透镜​​单元和第四透镜单元是 一起移动，使得第三透镜单元和第四透镜单元之间的相对间隔变宽或第四透镜单元接近成像点。

公开(公告)号：US20080117315A1

公开(公告)日：2008-05-22

申请号：US11731365

申请日：2007-03-29

Applicant: Keisuke Ichikawa ,  Shinichi Mihara

Inventor： Keisuke Ichikawa ,  Shinichi Mihara

IPC: H04N5/262

CPC classification number: G02B15/177

Abstract: An electronic imaging apparatus has a zoom optical system in which the most object-side lens unit A includes one biconcave-shaped negative lens component, each of air-contact-surfaces of which is configured as an aspherical surface, and when the magnification of the zoom optical system is changed in the range from a wide-angle position to a telephoto position, the lens unit A is moved back and forth along the optical axis in such a way that the lens unit A is initially moved toward the image side, and an electronic imaging unit that has an electronic image sensor so that image data picked up by the electronic image sensor are electrically processed and can be output as image data whose format is changed. In this case, in nearly infinite object point focusing, the zoom optical system satisfies the following condition: 0.7

Abstract translation: 电子成像装置具有变焦光学系统，其中最物体侧透镜单元A包括一个双凹面形的负透镜部件，其每个空气接触表面被构造为非球面，并且当放大倍数 变焦光学系统在从广角位置到望远位置的范围内变化，透镜单元A沿着光轴前后移动，使得透镜单元A最初朝向像侧移动，并且 具有电子图像传感器的电子成像单元，使得由电子图像传感器拾取的图像数据被电处理并且可以被输出为其格式改变的图像数据。 在这种情况下，在近乎无限的物点聚焦中，变焦光学系统满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> 0.7 /(fw.tan omega 07w ）<0.94 <？in-line-formula description =“内联公式”end =“tail”？>其中y <07> 当y 10表示从中心到距离中心最远处的中心的距离时，由＆lt; 011＆gt; 07＆lt; 011＆gt; 电子图像传感器的有效成像表面是由对应于图像点的物点的方向形成的角度，将成像面的中心连接在广角位置， 具有光轴的图像高度y <07>的位置，fw是变焦光学系统在广角位置处的整个系统的焦距。

公开(公告)号：US07212242B2

公开(公告)日：2007-05-01

申请号：US10114302

申请日：2002-04-03

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：US07186039B2

公开(公告)日：2007-03-06

申请号：US10444982

申请日：2003-05-27

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G03B9/02 ,  G03B9/08

CPC classification number: G02B13/06 ,  G02B5/04 ,  G02B5/24 ,  G02B5/3016 ,  G02B15/177

Abstract: An imaging optical system includes an image forming optical system forming an image of an object, an imaging device placed in the proximity of the image of the object, a liquid crystal element placed at a preset position on the optical path between the object and the imaging device; and an optical element placed on the object side of the liquid crystal element. The optical element is constructed of a medium in which the transmittance of light at a wavelength of 500 nm is 20% or more and which exhibits different refractive indices with respect to light, the directions of vibrations of which are perpendicular to each other.

Abstract translation: 成像光学系统包括形成物体的图像的成像光学系统，放置在物体的图像附近的成像装置，放置在物体和成像物体之间的光路上的预设位置的液晶元件 设备; 以及放置在液晶元件的物体侧的光学元件。 光学元件由其中波长为500nm的光的透射率为20％以上并且相对于彼此垂直的振动方向相对于光呈现不同的折射率的介质构成。

公开(公告)号：US20070030367A1

公开(公告)日：2007-02-08

申请号：US11543856

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，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：US20060274168A1

公开(公告)日：2006-12-07

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: H04N5/262

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：US20060221213A1

公开(公告)日：2006-10-05

申请号：US11245609

申请日：2005-10-06

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

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

IPC: H04N5/262

CPC classification number: H04N5/2628 ,  G02B7/102 ,  H04N5/23296 ,  H04N2209/045

Abstract: An imaging apparatus has the function of an optical zoom which optically converts the magnification of an image and the function of an electronic zoom which changes the size of an image by electrical signal processing. The function of the electronic zoom at least operates when the optical zoom is not set at the telephoto end. A total magnification is determined by changing magnification by the optical zoom and changing magnification by the electronic zoom. A pixel count s1 of an electronic imaging device, a pixel count s2 of a rectangle including the pixels on an imaging device which are used by the electronic zoom, and a pixel count s3 of an output satisfy s1≧s2>s3 or s1>s2≧s3.

Abstract translation: 成像装置具有光学变焦的功能，该光学变焦光学地转换图像的放大率和通过电信号处理改变图像的尺寸的电子变焦的功能。 当远摄端未设置光学变焦时，电子变焦的功能至少起作用。 通过用光学变焦改变放大倍率并通过电子变焦来改变放大倍数来确定总放大率。 电子成像装置的像素数s 1，包括由电子变焦使用的成像装置上的像素的矩形的像素数s 2和输出的像素数s 3满足s 1 = s 2 > s 3或s 1> s 2> = s 3。

公开(公告)号：US07085071B2

公开(公告)日：2006-08-01

申请号：US10638308

申请日：2003-08-12

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14 ,  G02B17/00

CPC classification number: G02B13/0045 ,  G02B13/006 ,  G02B13/007 ,  G02B13/009 ,  G02B15/14

Abstract: A zoom lens includes a first lens unit fixed when the magnification of the zoom lens is changed and at least two positive lens units arranged on the image side of the first lens unit so that relative spacings between individual lens units are varied when the magnification is changed. The first lens unit has a prism containing a reflecting surface at the most object-side position, the entrance surface of the prism is configured as a concave surface directed toward the object side, and the concave surface is an aspherical surface that divergence is impaired progressively in separating from the optical axis.

Abstract translation: 变焦透镜包括当变焦镜头的倍率改变时固定的第一透镜单元和布置在第一透镜单元的像侧上的至少两个正透镜单元，使得当倍率变化时各个透镜单元之间的相对间隔变化 。 第一透镜单元具有在最物体侧位置具有反射面的棱镜，棱镜的入射面被构成为朝向物体侧的凹面，凹面为非球面，发散逐渐变差 与光轴分离。

公开(公告)号：US20060077563A1

公开(公告)日：2006-04-13

申请号：US11186775

申请日：2005-07-22

Applicant: Shinichi Mihara ,  Shinya Takahashi ,  Takahiro Amanai

Inventor： Shinichi Mihara ,  Shinya Takahashi ,  Takahiro Amanai

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: The invention relates to a zoom lens wherein the total of lens components is reduced as much as possible and image-formation capability is enhanced far more stably over the entire zoom range, so that a lot more thickness reductions are achievable upon received at a lens mount, and an electronic imaging system that incorporates it. The electronic imaging system of the invention comprises a zoom lens having a plurality of lens groups G1 and G2 with a variable space between adjacent lens groups during zooming or focusing, wherein the lens group G1 nearest to the object side of the zoom lens comprises two components consisting of a negative lens component and a positive lens component, each having an aspheric surface, and an electronic image pickup device located on an image side of the zoom lens. Image data obtained by taking an image is processed to produce image data with shape changes as an output. The zoom lens satisfies condition (1) that defines the degree of barrel distortion at a zoom wide-angle end.

Abstract translation: 本发明涉及一种变焦透镜，其中透镜部件的总和尽可能地减小，并且在整个变焦范围内图像形成能力更加稳定地增强，使得在透镜安装座处接收到更多的厚度减小 ，以及包含它的电子成像系统。 本发明的电子成像系统包括具有在变焦或聚焦期间在相邻透镜组之间具有可变空间的多个透镜组G 1和G 2的变焦透镜，其中最靠近变焦透镜的物体侧的透镜组G 1 包括由分别具有非球面的负透镜部件和正透镜部件构成的两个部件和位于变焦透镜的像侧的电子摄像装置。 处理通过拍摄图像获得的图像数据，以产生具有形状变化的图像数据作为输出。 变焦透镜满足限定变焦广角端的桶形畸变度的条件（1）。

公开(公告)号：US06850373B2

公开(公告)日：2005-02-01

申请号：US10630693

申请日：2003-07-31

Applicant: Shinichi Mihara ,  Toshihide Nozawa

Inventor： Shinichi Mihara ,  Toshihide Nozawa

IPC: G02B15/20 ,  G02B15/177 ,  G03B17/12 ,  G03B17/17 ,  G02B15/14

CPC classification number: G02B13/22 ,  G02B5/04 ,  G02B15/177

Abstract: The invention relates to a zoom lens that enables an optical path to be easily bent and has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and limited aberrations. The zoom lens comprises, in order from its object side, a lens group A (G1) that comprises a negative lens, a reflecting optical element P for bending the optical path and remains fixed upon zooming, a lens group B (G2) that moves in one direction alone upon zooming from the wide-angle end to the telephoto end of the zoom lens and an aperture stop S that remains immovable with respect to position upon zooming. The zoom lens satisfies condition (1) with respect to the degree of change in the magnification of the lens group B from the wide-angle end to the telephoto end.

Abstract translation: 本发明涉及一种使光路容易弯曲并具有高变焦比，广角排列，小F数和有限像差等高规格性能的变焦镜头。 变焦透镜从物体侧依次包括：包括负透镜的透镜组A（G1），用于弯曲光路并在变焦时保持固定的反射光学元件P，移动的透镜组B（G2） 在从广角端变焦到变焦镜头的远摄端并且在变焦时相对于位置保持不动的孔径光阑S而单独一个方向。 变焦透镜相对于从广角端到望远端的透镜组B的倍率的变化程度满足条件（1）。