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1. 发明授权

US08339501B2 Zoom lens system, imaging device and camera 有权
标题翻译：变焦镜头系统，成像设备和相机
公开(公告)号：US08339501B2
公开(公告)日：2012-12-25
申请号：US12879535
申请日：2010-09-10
申请人： Takakazu Bito , Yoshito Miyatake , Mamoru Honjo
发明人： Takakazu Bito , Yoshito Miyatake , Mamoru Honjo
IPC分类号： H04N5/225
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein the zoom lens system, in order from the object side to the image side, comprises: a first lens unit having positive optical power and comprising four lens elements; a second lens unit having negative optical power; and a third lens unit having positive optical power; wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit is moved along an optical axis direction so as to achieve variable magnification, and wherein the conditions are satisfied: 0.30 20.5 (f1 is a composite focal length of the first lens unit, fW is a focal length of the entire system at a wide-angle limit, and fT is a focal length of the entire system at a telephoto limit), an imaging device and a camera are provided.
摘要翻译：一种变焦透镜系统，包括多个透镜单元，每个透镜单元均由至少一个透镜元件组成，其中所述变焦透镜系统从物体侧到像侧依次包括：具有正光焦度的第一透镜单元，包括四个透镜元素具有负光焦度的第二透镜单元; 和具有正光焦度的第三透镜单元; 其中，在从摄像时的广角限制变焦到远摄极限时，至少第一透镜单元沿着光轴方向移动，以实现可变放大倍数，并且其中满足条件：0.30 20.5（f1是第一透镜单元的复合焦距，fW是整个系统在广角极限处的焦距，fT是整体的焦距系统在远摄极限），提供成像装置和照相机。

2. 发明授权

US5513035A Infrared polarizer 失效
标题翻译：红外线偏振片
公开(公告)号：US5513035A
公开(公告)日：1996-04-30
申请号：US294951
申请日：1994-08-24
申请人： Yoshito Miyatake , Shinya Sannohe
发明人： Yoshito Miyatake , Shinya Sannohe
IPC分类号： G02B5/30 , G02B27/28 , H04N9/31 , G02B1/08 , G02B1/10
CPC分类号： H04N9/3167 , G02B27/283 , G02B5/3033 , H04N9/3105
摘要： A polarizer comprising; a substrate transparent to a light of actual use and optical thin films of a higher refractive index than that of said substrate deposited on both surfaces of said substrate. The substrate is arranged so as to receive the incident light obliquely thereto. When the incident angle and the thickness of the optical thin film are optimally selected, the transmittance for the P polarized light can be made approximately 100%, while that for the S polarized light very small. The polarizer can extract a substantially linearly polarized light from natural light, A projection image display system has the polarizer as its pre-polarizer. The polarizer is also useful for infrared radiation.
摘要翻译：一种偏振器，包括：对实际使用的光透明的衬底和比沉积在所述衬底的两个表面上的所述衬底的折射率更高的光学薄膜。基板被布置成倾斜地接收入射光。当光学薄膜的入射角度和厚度被最佳选择时，P偏振光的透射率可以大致为100％，而S偏振光的透射率非常小。偏振器可以从自然光中提取基本上线性的偏振光。投影图像显示系统具有偏振器作为其预偏振器。偏振器也可用于红外辐射。

3. 发明授权

US5357370A Polarizer and light valve image projector having the polarizer 失效
标题翻译：具有偏振器的偏光镜和光阀图像投影仪
公开(公告)号：US5357370A
公开(公告)日：1994-10-18
申请号：US888773
申请日：1992-05-27
申请人： Yoshito Miyatake , Shinya Sannohe
发明人： Yoshito Miyatake , Shinya Sannohe
IPC分类号： G02B5/30 , G02B27/28 , H04N9/31
CPC分类号： H04N9/3167 , G02B27/283 , G02B5/3033 , H04N9/3105
摘要： A polarizer comprising; a substrate transparent to a light of actual use and optical thin films of a higher refractive index than that of said substrate deposited on both surfaces of said substrate. The substrate is arranged so as to receive the incident light obliquely thereto. When the incident angle and the thickness of the optical thin film are optimally selected, the transmittance for the P polarized light can be made approximately 100%, while that for the S polarized light very small. The polarizer can extract a substantially linearly polarized light from natural light. A projection image display system has the polarizer as its pre-polarizer. The polarizer is also useful for infrared radiation.
摘要翻译：一种偏振器，包括：对实际使用的光透明的衬底和比沉积在所述衬底的两个表面上的所述衬底的折射率更高的光学薄膜。基板被布置成倾斜地接收入射光。当光学薄膜的入射角度和厚度被最佳选择时，P偏振光的透射率可以大致为100％，而S偏振光的透射率非常小。偏振器可以从自然光中提取基本上线性的偏振光。投影图像显示系统具有偏振器作为其预偏振器。偏振器也可用于红外辐射。

4. 发明授权

US4936656A Video projector 失效
公开(公告)号：US4936656A
公开(公告)日：1990-06-26
申请号：US168318
申请日：1988-03-18
申请人： Ichiro Yamashita , Mamoru Takeda , Yoshito Miyatake , Yoneharu Takubo
发明人： Ichiro Yamashita , Mamoru Takeda , Yoshito Miyatake , Yoneharu Takubo
IPC分类号： G02F1/1362 , H04N5/74
CPC分类号： G02F1/13624 , H04N5/7441 , G02F1/136213
摘要： A video projector utilizes a reflective liquid crystal light valve of the active matrix system and a polarizing beam splitter. An active matrix array circuit of the light valve has pixel electrodes arranged in a matrix mattern. The pixel electrodes each has a reflective surface for reflecting a light beam and protects corresponding switch elements from the light beam. There are provided at least two switch elements for each of the pixel electrodes so as to enhance the redundancy of the array circuit. Further, each pixel electrode is provided with a suitable additional capacitance.

5. 发明申请

US20080297916A1 ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA 有权
标题翻译：变焦镜头系统，成像设备和摄像机
公开(公告)号：US20080297916A1
公开(公告)日：2008-12-04
申请号：US12127345
申请日：2008-05-27
申请人： Keiki Yoshitsugu , Katsu Yamada , Yoshito Miyatake , Kazuhiko Ishimaru
发明人： Keiki Yoshitsugu , Katsu Yamada , Yoshito Miyatake , Kazuhiko Ishimaru
IPC分类号： G02B15/14
CPC分类号： G02B15/177 , G02B7/021
摘要： A zoom lens system comprising a first lens unit having negative power, a second lens unit having positive power and a third lens unit having positive power, wherein: the first lens unit comprises a first lens element having a concave surface at least on the image side and negative power and a second lens element having a convex surface at least on the object side and positive power; the second lens unit comprises a cemented lens element fabricated by two lens elements having optical power of mutually different signs and one single lens element; in zooming, all of the lens units move along an optical axis; and conditions (1): 5.0 35, αiW is an incident angle of a principal ray to an image sensor at a maximum image height at a wide-angle limit, n11 is a refractive index of the first lens element to the d-line, ωW is a half view angle at a wide-angle limit, and fT and fW are focal lengths of the entire system at a telephoto limit and a wide-angle limit, respectively) are satisfied.
摘要翻译：一种变焦透镜系统，包括具有负功率的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元，其中：所述第一透镜单元包括至少在图像侧具有凹面的第一透镜元件负电源和至少在物体侧具有凸面的正电力的第二透镜元件; 第二透镜单元包括由具有相互不同标志的光学功率的两个透镜元件和一个单一透镜元件制成的胶合透镜元件; 在变焦中，所有的透镜单元沿光轴移动; 和条件（1）：5.0 = 1.9（其中，3.2 35，alphaiW是主光线与图像传感器的入射角在广角极限处的最大图像高度，n11是第一透镜元件对d线的折射率，ω是宽广角极限处的半视角，fT和fW是整体的焦距系统分别在远摄极限和广角限制）。

6. 发明授权

US07023623B2 Zoom lens and electronic still camera using the same 失效
标题翻译：变焦镜头和电子静物相机使用相同
公开(公告)号：US07023623B2
公开(公告)日：2006-04-04
申请号：US10499790
申请日：2003-04-10
申请人： Yoshito Miyatake , Keiki Yoshitsugu
发明人： Yoshito Miyatake , Keiki Yoshitsugu
IPC分类号： G02B15/14
CPC分类号： G02B15/14 , G02B13/18 , G02B15/177
摘要： It is an object to provide a zoom lens made of three groups having a zoom ratio of ×2.5 to ×3.2 if the object distance is ∞, an field angle at the wide-angle end of 60° to 70°, high resolution, and a short optical total length when not in use. The zoom lens is made of a first lens group (G1) with a negative power, a second lens group (G2) with a positive power, and a third lens group (G3) with a positive power, arranged in that order from an object side to an image plane (S) side. The first lens group (G1) is made of a first lens (L1) that is a negative meniscus lens whose surface with strong curvature is facing the image plane (S) side and a second lens (L2) that is a positive meniscus lens whose surface with strong curvature is facing the object side, arranged in that order from the object side. The second lens group (G2) is made of a third lens (L3) that is a positive lens whose convex surface is facing the object side, a fourth lens (L4) that is a positive lens, a fifth lens (L5) that is a negative lens, and a sixth lens (L6) that is a plano-convex lens whose convex surface is facing the image plane (S) side, arranged in that order from the object side. The third lens group (G3) is made of a single seventh lens (L7) that is a positive lens.
摘要翻译：本发明的目的是提供一种由三个组成的变焦透镜，如果对象距离为∞，则广角端的视场角为60°至70°，高分辨率，并且在不使用时具有短的光学总长度。变焦透镜由具有负功率的第一透镜组（G 1），具有正光焦度的第二透镜组（G 2）和具有正功率的第三透镜组（G 3）以该顺序布置从物体侧到图像平面（S）侧。第一透镜组（G 1）由作为负弯月形透镜的第一透镜（L 1）制成，其具有强曲率的表面面向图像平面（S）侧，第二透镜（L 2）为正凹凸透镜，其表面具有较强的曲率面向物体侧，从物体侧依次排列。第二透镜组（G 2）由凸面朝向物体侧的正透镜的第三透镜（L 3），作为正透镜的第四透镜（L 4），第五透镜（L 5）和作为凸面朝向像平面（S）侧的平凸透镜的第六透镜（L 6），从物体侧依次排列。第三透镜组（G 3）由作为正透镜的单个第七透镜（L 7）制成。

7. 发明授权

US5689315A Light valve apparatus which is employed in a projection display system and in a view-finder system 失效
标题翻译：用于投影显示系统和取景器系统中的光阀装置
公开(公告)号：US5689315A
公开(公告)日：1997-11-18
申请号：US91191
申请日：1993-07-14
申请人： Yoshimasa Fushimi , Yoshito Miyatake
发明人： Yoshimasa Fushimi , Yoshito Miyatake
IPC分类号： G02F1/1335 , G02B6/08
CPC分类号： G02F1/133526
摘要： A light valve apparatus in which a first lens array, a second lens array, and a light valve are arranged sequentially from an incident light side, and a focal length of each of the microlens elements for the first lens array is set shorter than a focal length of each of the microlens elements for the second lens array. The respective microlens elements of the second lens array are adapted to form a real image, corresponding to an imaginary object on a focal point of the respective microlens elements of the first lens array, on corresponding pixels of the light valve. A plurality of very small light source images corresponding to the light source are formed by the first lens array, and light emitted from the plurality of very small light source images are incident upon the respective microlens elements of the second lens array such that the images are projected onto the pixels of the light valve. Therefore, since the light incident upon the openings of the light valve can be increased without thinning an incident side glass substrate of the light valve, the substantial aperture ratio of the light valve apparatus may be improved. When the light valve apparatus of the present invention is used for a projection display system, projected images are significantly brightened, and if the light valve apparatus is utilized in a view-finder system, not only is the brightness of displayed images improved, but it also becomes possible to reduce the power consumption of the system.
摘要翻译：一种光阀装置，其中第一透镜阵列，第二透镜阵列和光阀从入射光侧依次布置，并且用于第一透镜阵列的每个微透镜元件的焦距被设定为短于焦点用于第二透镜阵列的每个微透镜元件的长度。第二透镜阵列的各自的微透镜元件适于形成对应于第一透镜阵列的各个微透镜元件的焦点上的假想物体在光阀的对应像素上的实像。通过第一透镜阵列形成对应于光源的多个非常小的光源图像，并且从多个非常小的光源图像发射的光入射到第二透镜阵列的相应的微透镜元件上，使得图像是投影到光阀的像素上。因此，由于可以增加入射到光阀的开口的光而不会使光阀的入射侧玻璃基板变薄，所以可以提高光阀装置的实质开口率。当本发明的光阀装置用于投影显示系统时，投影图像显着变亮，并且如果在取景器系统中使用光阀装置，则不仅显示图像的亮度得到改善，而且也可以降低系统的功耗。

8. 发明授权

US5552906A Optically addressed picture display apparatus 失效
标题翻译：光学寻址图像显示装置
公开(公告)号：US5552906A
公开(公告)日：1996-09-03
申请号：US341360
申请日：1994-11-17
申请人： Shigekazu Yamagishi , Yoshito Miyatake , Hiroshi Miyai
发明人： Shigekazu Yamagishi , Yoshito Miyatake , Hiroshi Miyai
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/13357 , G02F1/135 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105 , H04N5/7441 , H04N9/3144
摘要： A picture display apparatus which converts an input optical image into a projected picture using a photoelectric effect. The picture display apparatus includes an image transfer device having a plurality of graded index lenses which are bundled in parallel to an optical axis. The image transfer device is provided between an electro-optical device and a picture display device so that an input optical image on the picture display device is transferred in equisize onto the photoconductive layer of the electro-optical device.
摘要翻译：一种图像显示装置，其使用光电效应将输入光学图像转换成投影图像。图像显示装置包括具有与光轴平行捆束的多个渐变折射率透镜的图像传送装置。图像传送装置设置在电光装置和图像显示装置之间，使得图像显示装置上的输入光学图像被等分转印到电光装置的光电导层上。

9. 发明授权

US5390048A Projection lens assembly and projection display apparatus 失效
标题翻译：投影镜头组合和投影显示装置
公开(公告)号：US5390048A
公开(公告)日：1995-02-14
申请号：US984311
申请日：1992-12-01
申请人： Yoshito Miyatake , Yuichi Kimura , Sinya Sannohe , Yoshimasa Fushimi
发明人： Yoshito Miyatake , Yuichi Kimura , Sinya Sannohe , Yoshimasa Fushimi
IPC分类号： G02B9/12 , G02B9/34 , G02B13/22
CPC分类号： G02B13/22 , G02B13/04 , G02B9/12
摘要： An optical system of a projection display apparatus includes a projection lens assembly having a first lens group having a negative power, a second lens group having a negative power and a third lens group having a positive power, all arranged in this order from a side of a screen. An air space is provided between the first and second lens groups and also between the second and third lens groups. Each air space is longer than the entire length of the second lens group as taken along the optical axis of the assembly. The projection display apparatus has a light source for radiating rays of light including three primary color components, a color separating optical system for separating the radiation into three primary color components, first to third light valves each operable to receive the respective primary color components from the color separating optical system and to form an optical image having an optical characteristic varying as a function of a video signal, and a color combining optical system for combining images of light emerging, respectively, from the light valves to provide a composite image. The projection lens assembly receives the image from the combining unit so as to project the optical images, formed on the respective light valves, onto a screen.
摘要翻译：投影型显示装置的光学系统包括投影透镜组件，该投影透镜组件具有负功率的第一透镜组，具有负光焦度的第二透镜组和具有正光焦度的第三透镜组，全部从一个屏幕。在第一透镜组和第二透镜组之间以及第二和第三透镜组之间设置空气空间。每个空气空间比沿着组件的光轴截取的第二透镜组的整个长度长。投影显示装置具有用于照射包括三原色成分的光线的光源，用于将辐射分离为三原色成分的分色光学系统，第一至第三光阀，其可操作以从所述基色接收各自的原色成分并且形成具有作为视频信号的函数而变化的光学特性的光学图像;以及颜色组合光学系统，用于分别组合来自光阀的光的图像，以提供合成图像。投影透镜组件从组合单元接收图像，以将形成在各个光阀上的光学图像投影到屏幕上。

10. 发明授权

US4753519A Optical system for projection television apparatus 失效
标题翻译：投影电视机的光学系统
公开(公告)号：US4753519A
公开(公告)日：1988-06-28
申请号：US780680
申请日：1985-09-26
申请人： Yoshito Miyatake
发明人： Yoshito Miyatake
IPC分类号： G02B13/16 , G02B13/18 , H04N9/31 , G02B27/00 , H04N5/72
CPC分类号： G02B13/16 , G02B13/18 , H04N9/31
摘要： An optical system for projection television apparatus has three projection cathode-ray tubes for producing red, green and blue monochrome images, respectively. Three projection lens systems are disposed in front of faceplates of the projection cathode-ray tubes, respectively for producing the red, green and blue screen, each of the projection lens systems having a rear lens element having a negative power and disposed in front of a corresponding one of the cathode-ray tubes and a front group having a positive power and disposed in front of the rear lens element, the rear lens element having a concave surface facing the front group. In each of at least two of the three projection lens systems, the optical axis of the front group is tilted to that of the rear lens element, and the optical axis of the rear lens element is in parallel with or aligned with that of the corresponding one of the projection cathode-ray tubes.
摘要翻译：用于投影电视设备的光学系统具有分别用于产生红色，绿色和蓝色单色图像的三个投影阴极射线管。三个投影透镜系统分别设置在投影阴极射线管的面板的前面，用于产生红色，绿色和蓝色屏幕，每个投影透镜系统具有负电源的后透镜元件并且设置在对应的一个阴极射线管和具有正功率的前组，并设置在后透镜元件的前面，后透镜元件具有面向前组的凹面。在三个投影透镜系统中的至少两个投影透镜系统中的每一个中，前组的光轴倾斜到后透镜元件的光轴，并且后透镜元件的光轴与对应的后透镜元件的光轴平行或对准投影阴极射线管之一。

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