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11. 发明授权

US07766488B2 Projection type image display apparatus 有权
标题翻译：投影型图像显示装置
公开(公告)号：US07766488B2
公开(公告)日：2010-08-03
申请号：US11763465
申请日：2007-06-15
申请人： Koji Hirata , Takanori Hisada , Masahiko Yatsu
发明人： Koji Hirata , Takanori Hisada , Masahiko Yatsu
IPC分类号： G03B21/14 , G03B21/28
CPC分类号： G03B21/28 , G02B17/0852 , G03B21/145 , H04N9/317
摘要： A projection-type image display apparatus for projecting an image, enlargedly, onto a projection surface, comprises: an image display element; a lens group, being disposed behind the image display element, comprising therein, a front lens group made up with a plural number of lenses, including, at least, a refractive lens, having a positive power and being rotationally symmetric in a surface configuration thereof, and a rear lens group made up with a plural number of lenses, including, at least, a lens having a free curved surface configuration and being rotationally asymmetric, thereby emitting the image displayed on the image display element; a reflection mirror for reflecting the light from the lens group, thereby projection onto the projection surface, obliquely; a first mounting base, on which the rear lens group is mounted; and a rod member, which is provided on the mounting base for moving the mounting base.
摘要翻译：一种用于将图像放大地投影到投影表面上的投影型图像显示装置，包括：图像显示元件; 设置在图像显示元件后面的透镜组，其中包括由多个透镜构成的前透镜组，至少包括具有正光焦度并在其表面形状中旋转对称的折射透镜以及由多个透镜构成的后透镜组，至少包括具有自由曲面构造并且旋转非对称的透镜，从而发射显示在图像显示元件上的图像; 用于反射来自透镜组的光的反射镜，从而倾斜地突出到投影表面上; 第一安装基座，其上安装后透镜组; 以及杆构件，其设置在安装基座上用于移动安装基座。

12. 发明授权

US07665849B2 Color separating unit and projection type video display apparatus provided with the same 失效
标题翻译：分色单元和投影型视频显示装置
公开(公告)号：US07665849B2
公开(公告)日：2010-02-23
申请号：US11471030
申请日：2006-06-19
申请人： Hidehiro Ikeda , Masahiko Yatsu , Koji Hirata , Kei Adachi
发明人： Hidehiro Ikeda , Masahiko Yatsu , Koji Hirata , Kei Adachi
IPC分类号： G03B21/14
CPC分类号： G03B21/2073 , G03B21/208 , G03B33/12 , H04N9/3117
摘要： A projection type video display apparatus having improved color separating ability is provided. The projection type video display apparatus includes a color separating unit including an entrance plate provided with an aperture through which light beams emitted by a light source travel, an optical integrator, and a plurality of dichroic mirrors disposed with their color separating surfaces extended substantially parallel to the exit surface of the optical integrator and capable of transmitting color light beams of wavelengths in a predetermined wavelength range and of reflecting color light beams of wavelengths outside the predetermined wavelength range.
摘要翻译：提供了具有改进的分色能力的投影型视频显示装置。投影型视频显示装置包括一个分色单元，它包括一个入口板，该入口板设置有一个入口板，入口板设置有一个由光源发出的光束行进的孔径，一个光学积分器和多个分色镜，它们的颜色分离表面基本平行于光学积分器的出射表面，并能够透射预定波长范围内的波长的彩色光束并反射预定波长范围外的波长的彩色光束。

13. 发明申请

US20090207381A1 PROJECTION DISPLAY 有权
标题翻译：投影显示
公开(公告)号：US20090207381A1
公开(公告)日：2009-08-20
申请号：US12419423
申请日：2009-04-07
申请人： Koji Hirata , Masahiko Yatsu
发明人： Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/28 , G03B21/14
CPC分类号： H04N9/3144 , H04N9/3105
摘要： A projection type image display apparatus is provided which includes a housing to hold an optical system including multi-lenses, a polarized-light conversion element and the color separation portion The housing operates to provide an optical path between a light source, located outside the housing, and penetration-type image display elements and an optical synthesizing portion also located outside of the housing.
摘要翻译：提供一种投影型图像显示装置，其包括用于保持包括多透镜的光学系统的壳体，偏振光转换元件和分色部分。外壳操作以在位于外壳外部的光源之间提供光路，以及穿透型图像显示元件和也位于壳体外部的光学合成部。

14. 发明授权

US07553031B2 Projection image display apparatus and projection optical unit to be used therein 有权
标题翻译：其中使用的投影图像显示装置和投影光学单元
公开(公告)号：US07553031B2
公开(公告)日：2009-06-30
申请号：US11200353
申请日：2005-08-08
申请人： Takanori Hisada , Masahiko Yatsu , Koji Hirata
发明人： Takanori Hisada , Masahiko Yatsu , Koji Hirata
IPC分类号： G03B21/28 , G02B5/10 , H04N3/23 , H04N5/74 , G02F1/00
CPC分类号： G03B21/10 , G02B17/0816 , G03B21/28
摘要： In a projection type image display apparatus, for enlarging an image on a image display apparatus 1 by means of a projection lens 2, thereby projecting the enlarged image onto a screen 6, obliquely, being inclined thereto, between the projection lens 2 and a rear-surface mirror 5, there are disposed free shaped surface mirrors 3 and 4, each having a free shaped surface for compensating a trapezoidal distortion due to oblique projection of the enlarged image. The surface configuration of the free shaped surface mirror is so shaped as to satisfy a following equation: |L1−L2|>1.4·Dv if assuming that a distance for a light beam of an upper end of the enlarged image to reach the screen after being reflected upon a free shaped surface is “L1”, a distance for a light beam of a lower end of the enlarged image to reach the screen after being reflected upon the free shaped surface is “L2”, and a distance from an upper end of an image on the screen to a lower end thereof is “Dv”.
摘要翻译：在投影型图像显示装置中，为了通过投影透镜2放大图像显示装置1上的图像，从而将放大图像倾斜地投影到屏幕6上，在投影透镜2和后方表面镜5设置有自由形状的表面镜3和4，每个具有自由形状的表面，用于补偿由于放大图像的倾斜投影引起的梯形失真。自由形状的表面镜的表面形状被形成为满足以下等式：<？in-line-formula description =“In-line formula”end =“lead”？> | L1-L2 |> 1.4.Dv 如果假设放大图像的上端的光束的距离在自由形状的反射之后到达屏幕，则<？in-line-formula description =“In-line Formulas”end =“tail”？> 表面为“L1”，放大图像的下端的光束在被自由形状的表面反射之后到达屏幕的距离为“L2”，并且距离屏幕上的图像的上端的距离到其下端是“Dv”。

15. 发明授权

US07553025B2 Projection type image display apparatus, and optical unit and polarization splitting unit each used for the apparatus 有权
标题翻译：投射型图像显示装置，以及用于该装置的光学单元和偏振分离单元
公开(公告)号：US07553025B2
公开(公告)日：2009-06-30
申请号：US11407044
申请日：2006-04-20
申请人： Koji Hirata , Masahiko Yatsu
发明人： Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/14 , G03B21/28 , G02B17/04 , G02B27/12 , G02B27/28 , H04N9/07
CPC分类号： G02B5/3058 , G02B27/283 , G03B21/2073 , H04N9/3105 , H04N9/3167
摘要： A polarization splitting section has a structure in that a polarization splitting layer is formed of a light reflecting grid member which is arranged in a grid-shaped pattern on an optically-transparent substrate, and an optically-transparent medium is filled between the grid member and the substrate in contact with the grid member surface and the substrate surface, and the grid member and the filled optically-transparent medium are bonded to the substrate with another adhesive agent or tackiness agent formed of an optically-transparent medium interposed. The polarization splitting layer is partly protruded externally from the surfaces of prism materials.
摘要翻译：偏振分离部具有以下结构：偏光分离层由在光学透明基板上以格子状排列的光反射栅格部件形成，光栅透明介质填充在栅格部件与与栅格构件表面和衬底表面接触的衬底以及栅格构件和填充的光学透明介质通过插入光学透明介质形成的另一粘合剂或粘合剂粘合到衬底上。偏振分离层部分地从棱镜材料的表面向外突出。

16. 发明授权

US07532407B2 Projection display 有权
标题翻译：投影显示
公开(公告)号：US07532407B2
公开(公告)日：2009-05-12
申请号：US11500993
申请日：2006-08-09
申请人： Koji Hirata , Masahiko Yatsu
发明人： Koji Hirata , Masahiko Yatsu
IPC分类号： G02B27/14 , G03B21/14 , G03B21/00 , G02F1/1335
CPC分类号： H04N9/3144 , H04N9/3105
摘要： A projection type image display apparatus is provided which includes a housing to hold an optical system including multi-lenses, a polarized-light conversion element and the color separation portion. The housing operates to provide an optical path between a light source, located outside the housing, and penetration-type image display elements and an optical synthesizing portion also located outside of the housing.
摘要翻译：提供一种投影型图像显示装置，其包括用于保持包括多透镜，偏振光转换元件和分色部分的光学系统的外壳。壳体用于在位于壳体外部的光源和穿透型图像显示元件之间提供光路，以及也位于壳体外部的光学合成部分。

17. 发明申请

US20070206165A1 PROJECTION DISPLAY 审中-公开
标题翻译：投影显示
公开(公告)号：US20070206165A1
公开(公告)日：2007-09-06
申请号：US11679283
申请日：2007-02-27
申请人： Masahiko Yatsu , Koji Hirata
发明人： Masahiko Yatsu , Koji Hirata
IPC分类号： G03B21/28
CPC分类号： H04N5/74 , G02B27/0977 , G02B27/102 , G02B27/143 , G02B27/145 , G02B27/149 , H04N9/3152
摘要： Uniform light quantity distribution is achieved in an image display element by directing light beam reflected in an A quadrant of X-Y plane coordinate system of a reflector into a B quadrant of the X-Y plane coordinate system of the image displaying element, when the X-Y plane coordinate system is provided in a plane perpendicular to an optical axis of a light emitting part.
摘要翻译：在XY平面坐标系中，通过将反射器的XY平面坐标系的A象限反射的光束引导到图像显示元件的XY平面坐标系的B象限中，在图像显示元件中实现均匀的光量分布设置在垂直于发光部分的光轴的平面中。

18. 发明授权

US07261420B2 Projection optical unit and projection image display apparatus 有权
标题翻译：投影光学单元和投影图像显示装置
公开(公告)号：US07261420B2
公开(公告)日：2007-08-28
申请号：US11637692
申请日：2006-12-13
申请人： Masahiko Yatsu , Koji Hirata , Hidehiro Ikeda
发明人： Masahiko Yatsu , Koji Hirata , Hidehiro Ikeda
IPC分类号： G03B21/14 , G03B21/26 , G02B13/22 , G02B23/24 , G02B9/06
CPC分类号： G02B13/22 , G03B21/142
摘要： A projection optical unit for enlarged projection of an image displayed by an image display element includes a first projection optical unit having positive refractive power, and a second projection optical unit having positive refractive power for further enlarging the first enlarged image obtained by the first projection optical unit. The first projection optical unit is in an almost telecentric relationship with respect to the image display element side and the first enlarged image side, and the first enlarged image is formed at the image display element side, rather than at the second projection optical unit.
摘要翻译：用于由图像显示元件显示的图像进行放大投影的投影光学单元包括具有正折光力的第一投影光学单元和具有正折光力的第二投影光学单元，用于进一步放大由第一投影光学获得的第一放大图像单元。第一投影光学单元相对于图像显示元件侧和第一放大图像几乎是远心关系，并且第一放大图像形成在图像显示元件侧而不是在第二投影光学单元处。

19. 发明申请

US20070019163A1 Color separating unit and projection type video display apparatus provided with the same 失效
标题翻译：分色单元和投影型视频显示装置
公开(公告)号：US20070019163A1
公开(公告)日：2007-01-25
申请号：US11471030
申请日：2006-06-19
申请人： Hidehiro Ikeda , Masahiko Yatsu , Koji Hirata , Kei Adachi
发明人： Hidehiro Ikeda , Masahiko Yatsu , Koji Hirata , Kei Adachi
IPC分类号： G03B21/14
CPC分类号： G03B21/2073 , G03B21/208 , G03B33/12 , H04N9/3117
摘要： A projection type video display apparatus having improved color separating ability is provided. The projection type video display apparatus includes a color separating unit including an entrance plate provided with an aperture through which light beams emitted by a light source travel, an optical integrator, and a plurality of dichroic mirrors disposed with their color separating surfaces extended substantially parallel to the exit surface of the optical integrator and capable of transmitting color light beams of wavelengths in a predetermined wavelength range and of reflecting color light beams of wavelengths outside the predetermined wavelength range.
摘要翻译：提供了具有改进的分色能力的投影型视频显示装置。投影型视频显示装置包括一个分色单元，它包括一个入口板，该入口板设置有一个入口板，入口板设置有一个由光源发出的光束行进的孔径，一个光学积分器和多个分色镜，它们的颜色分离表面基本平行于光学积分器的出射表面，并能够透射预定波长范围内的波长的彩色光束并反射预定波长范围外的波长的彩色光束。

20. 发明申请

US20060274274A1 Projection type display apparatus and optical unit used therefor 审中-公开
标题翻译：投影式显示装置及其所用的光学装置
公开(公告)号：US20060274274A1
公开(公告)日：2006-12-07
申请号：US11445465
申请日：2006-06-02
申请人： Kei Adachi , Koji Hirata , Masahiko Yatsu
发明人： Kei Adachi , Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/14
CPC分类号： G02B27/149 , G02B27/1026 , G03B21/2073 , G03B21/208
摘要： The present invention provides a technique which can enhance contrast and brightness of a displayed image in a projection image display apparatus. According to the present invention, as a polarization splitting unit polarization-splitting incident light or exiting light upon/from a light valve, F number of a polarization splitting plane formed between prism members in an axial direction in which an incident angle of light is small (Y-axis direction) is smaller than F number in an axial direction in which an incident angle is large (X′-axis direction or Z′-axis direction) so that the light is incident so as to be tilted in the axial direction in which the incident angle is small. This can suppress an amount of change in incident angle of light upon a polarization splitting plane to a small value and can increase an amount of incident light upon the polarization splitting plane in the state that polarization-splitting performance is maintained in the best range.
摘要翻译：本发明提供一种能够增强投影图像显示装置中的显示图像的对比度和亮度的技术。根据本发明，作为偏振分离单元，偏振光分离入射光或从光阀出射光，在光入射角小的轴向的棱镜构件之间形成的偏振分束平面的F数（Y轴方向）小于入射角（X'轴方向或Z'轴方向）的轴方向的F数，使得光入射到轴向方向其中入射角小。由此，能够将偏振光分离面的光的入射角的变化量抑制到小的值，并且能够在极化分离性能保持最佳范围的状态下增加偏振分离面上的入射光量。

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