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1. 发明授权

US08616711B2 Oblique projector having movable free form lenses 有权
标题翻译：具有可移动自由形式透镜的倾斜投影仪
公开(公告)号：US08616711B2
公开(公告)日：2013-12-31
申请号：US13083669
申请日：2011-04-11
申请人： Masahiko Yatsu
发明人： Masahiko Yatsu
IPC分类号： G03B21/14 , G03B21/20 , G03B21/26 , G03B3/00 , G02B3/00 , G02B9/00 , G02B15/14
CPC分类号： G02B15/177 , G02B13/16 , G02B13/18 , G02B17/0852
摘要： A projection type image display apparatus in which shortening of the projection distance (widening of the angle of view) and miniaturization of the projection optic system are realized is provided. It comprises, in a traveling direction of the light, an image display element, a lens group including a plurality of lenses, a first lens, a second lens, and a mirror to reflect light emitted from the second lens to be projected obliquely on a screen in this order. The refractive power of the first lens is positive and the refractive power of the second lens is negative. The first and the second lenses are moved in an interlocked relationship with each other along an optical axis of the lens group and a movement amount of the first lens is made larger than a movement amount of the second lens.
摘要翻译：提供了一种突出型图像显示装置，其中实现了投影距离的缩短（视角的扩大）和投影光学系统的小型化。它包括在光的行进方向上的图像显示元件，包括多个透镜的透镜组，第一透镜，第二透镜和反射镜，以将从第二透镜发射的光倾斜地反射到屏幕按此顺序。第一透镜的屈光力为正，第二透镜的屈光力为负。第一透镜和第二透镜沿着透镜组的光轴彼此互锁的关系移动，并且使第一透镜的移动量大于第二透镜的移动量。

2. 发明授权

US08313199B2 Projection display system including lens group and reflecting mirror 有权
标题翻译：投影显示系统，包括镜头组和反射镜
公开(公告)号：US08313199B2
公开(公告)日：2012-11-20
申请号：US11871438
申请日：2007-10-12
申请人： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
发明人： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
IPC分类号： G03B21/26 , G03B21/56 , G02B3/00
CPC分类号： G03B21/56 , G02B17/08 , G02B17/0852 , G03B21/10 , G03B21/14 , G03B21/28
摘要： A projection display system comprising a projection display unit including a light source, an image display element, a lighting optical system irradiating a beam of light on the image display element, and a projection optical system projecting an image light from the image display element toward a screen. The projection optical system including a lens group composed of a plurality of lens elements arranged in order toward the screen from the image display element and symmetrically with respect to an optical axis, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis. The projection display system further comprises a screen 5. The projection display unit projects the image light onto a projection plane of the screen to display an image.
摘要翻译：一种投影显示系统，包括：投影显示单元，包括光源，图像显示元件，照射在所述图像显示元件上的光束的照明光学系统;以及投影光学系统，将图像光从所述图像显示元件投射到屏幕。投影光学系统包括由从图像显示元件顺序排列并相对于光轴对称布置的多个透镜元件的透镜组以及相对于光学轴向不对称成形的反射镜轴。投影显示系统还包括屏幕5.投影显示单元将图像光投影到屏幕的投影平面上以显示图像。

3. 发明申请

US20120081676A1 PROJECTION IMAGE DISPLAY APPARATUS 有权
标题翻译：投影图像显示设备
公开(公告)号：US20120081676A1
公开(公告)日：2012-04-05
申请号：US13251431
申请日：2011-10-03
申请人： Koji HIRATA , Masahiko Yatsu , Naoyuki Ogura , Hidehiro Ikeda
发明人： Koji HIRATA , Masahiko Yatsu , Naoyuki Ogura , Hidehiro Ikeda
IPC分类号： G03B21/14
CPC分类号： G02B13/18 , G02B7/022 , G02B13/16
摘要： There is provided a projection image display apparatus which is excellent in quality of a display screen image even if a projection lens using a plastic lens having an asymmetrical shape with respect to an optical axis is used. The apparatus includes a projection lens which obliquely projects video light on a screen, an integrator which aligns a polarization direction of light from a light source, and an image display element (P, PL) which modulates light having the aligned polarization direction by an image signal. The projection lens includes multiple plastic lenses, and each of the multiple plastic lenses is arrayed, respectively, by shifting a gate direction to each other by 180 degrees. When the projection lens includes n sheets (n is a natural number) of plastic lenses, each of the multiple plastic lenses may be arrayed, respectively, by shifting a gate direction to each other by (360/n) degrees.
摘要翻译：提供了即使使用具有相对于光轴具有不对称形状的塑料透镜的投影透镜，显示屏图像的质量也优异的投影图像显示装置。该装置包括将视频光倾斜地投影在屏幕上的投影透镜，使来自光源的光的偏振方向对准的积分器和通过图像调制具有排列的偏振方向的光的图像显示元件（P，PL）信号。投影透镜包括多个塑料透镜，并且通过将栅极方向彼此移动180度来分别排列多个塑料透镜中的每一个。当投影透镜包括n个塑料透镜的n个片（n个是自然数）时，通过将栅极方向彼此移动（360 / n）度，可以分别排列多个塑料透镜中的每一个。

4. 发明申请

US20110299039A1 PROJECTION TYPE IMAGE DISPLAY APPARATUS 有权
标题翻译：投影类型图像显示设备
公开(公告)号：US20110299039A1
公开(公告)日：2011-12-08
申请号：US13083669
申请日：2011-04-11
申请人： MASAHIKO YATSU
发明人： MASAHIKO YATSU
IPC分类号： G03B21/14
CPC分类号： G02B15/177 , G02B13/16 , G02B13/18 , G02B17/0852
摘要： A projection type image display apparatus in which shortening of the projection distance (widening of the angle of view) and miniaturization of the projection optic system are realized is provided. It comprises, in a traveling direction of the light, an image display element, a lens group including a plurality of lenses, a first lens, a second lens, and a mirror to reflect light emitted from the second lens to be projected obliquely on a screen in this order. The refractive power of the first lens is positive and the refractive power of the second lens is negative. The first and the second lenses are moved in an interlocked relationship with each other along an optical axis of the lens group and a movement amount of the first lens is made larger than a movement amount of the second lens.
摘要翻译：提供了一种突出型图像显示装置，其中实现了投影距离的缩短（视角的扩大）和投影光学系统的小型化。它包括在光的行进方向上的图像显示元件，包括多个透镜的透镜组，第一透镜，第二透镜和反射镜，以将从第二透镜发射的光倾斜地反射到屏幕按此顺序。第一透镜的屈光力为正，第二透镜的屈光力为负。第一透镜和第二透镜沿着透镜组的光轴彼此互锁的关系移动，并且使第一透镜的移动量大于第二透镜的移动量。

5. 发明申请

US20100290010A1 PROJECTION APPARATUS AND TRANSPARENT SCREEN FOR IT 有权
标题翻译：投影设备和透明屏幕
公开(公告)号：US20100290010A1
公开(公告)日：2010-11-18
申请号：US12777364
申请日：2010-05-11
申请人： Koji HIRATA , Masahiko Yatsu , Hidehiro Ikeda
发明人： Koji HIRATA , Masahiko Yatsu , Hidehiro Ikeda
IPC分类号： G03B21/14 , G03B21/62
CPC分类号： G03B21/62 , G02B13/18 , G03B21/10 , H04N7/142
摘要： There is provided a projection apparatus using an oblique projection optical system, which generates little reflection loss by providing a linear Fresnel lens at an incident surface in the case where the apparatus is used as a linear system, wherein said linear Fresnel lens makes total reflection of image light, and is capable of obtaining total surface property with good brightness in a region with small incident angle onto a screen, by using a total reflection Fresnel lens and a refraction Fresnel lens in combination. In addition, total surface property with further good brightness can be obtained by using a plurality of projection image display apparatuses in the same projection apparatus.
摘要翻译：提供了一种使用倾斜投影光学系统的投影装置，其在将该装置用作线性系统的情况下在入射表面处设置线性菲涅耳透镜而产生很小的反射损失，其中所述线性菲涅耳透镜全部反射并且通过组合使用全反射菲涅耳透镜和折射菲涅尔透镜，能够在具有小的入射角的区域中以良好的亮度获得在屏幕上的总表面性质。此外，通过在同一投影装置中使用多个投影图像显示装置，可以获得更高亮度的总表面性质。

6. 发明申请

US20100277703A1 PROJECTION OPTICAL UNIT, PROJECTION-TYPE IMAGE DISPLAYING APPARATUS AND PROJECTION-TYPE IMAGE DISPLAYING SYSTEM 有权
标题翻译：投影光学单元，投影型图像显示设备和投影类型图像显示系统
公开(公告)号：US20100277703A1
公开(公告)日：2010-11-04
申请号：US12838915
申请日：2010-07-19
申请人： Takanori Hisada , Koji Hirata , Masahiko Yatsu
发明人： Takanori Hisada , Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/28
CPC分类号： G03B21/28
摘要： A projection optical unit for a projection display apparatus, which displays an image upon a projection surface, obliquely, includes a front lens group disposed in a direction from an image display element to a projection surface, a rear lens group, and a reflection mirror formed so that a curvature of a portion for reflecting a light beam incident upon a lower end portion of the projection surface is larger than a curvature of a portion for reflecting a light beam incident upon an upper end of the projection surface. An optical axis of the front lens group and the rear lens group is more inclined with respect to a direction of the portion of the reflection mirror for reflecting the light beam incident upon the lower end portion of the projection surface than a normal line direction of the image display element.
摘要翻译：一种用于投影显示设备的投影光学单元，其在投影表面上倾斜地显示图像，包括沿从图像显示元件到投影表面的方向设置的前透镜组，后透镜组和形成的反射镜使得入射到投影表面的下端部分上的反射光束的部分的曲率大于用于反射入射在投影表面的上端的光束的部分的曲率。前透镜组和后透镜组的光轴相对于反射镜的部分的方向更倾斜，用于反射入射在投影表面的下端部上的光束，而不是垂直方向图像显示元件。

7. 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。

8. 发明申请

US20100171937A1 OBLIQUE PROJECTION OPTICAL SYSTEM AND PROJECTION TYPE DISPLAY APPARATUS USING THE SAME 有权
标题翻译： OBIQUE投影光学系统和投影型显示设备
公开(公告)号：US20100171937A1
公开(公告)日：2010-07-08
申请号：US12636951
申请日：2009-12-14
申请人： Koji HIRATA , Masahiko Yatsu , Naoyuki Ogura
发明人： Koji HIRATA , Masahiko Yatsu , Naoyuki Ogura
IPC分类号： G03B21/28 , G02B13/18 , G03B21/14 , B23P15/24
CPC分类号： G03B21/28 , G02B3/02 , G02B13/16 , G02B13/18 , G03B21/006 , G03B21/14 , G03B21/30 , H04N9/3141 , Y10T29/49995
摘要： A projection type display apparatus including an oblique projection optical system having a plurality of lenses is disclosed. A lens nearest to a projection screen has a vertical effective image area through which a light flux passes. The lens is arranged at a position not including an optical axis shared by the largest number of lenses among the plurality of lenses. A flat mirror for returning the optical path is arranged between the particular lens and the projection screen at a predetermined angle to the optical axis. An enlarged image obtained by the light flux returned by the flat mirror is formed toward a display screen.
摘要翻译：公开了一种包括具有多个透镜的倾斜投影光学系统的投影型显示装置。最靠近投影屏幕的透镜具有通过光束的垂直有效图像区域。透镜布置在不包括由多个透镜中的最大数量的透镜共享的光轴的位置。用于返回光路的平面镜以与光轴成预定角度布置在特定透镜和投影屏之间。通过由平面镜返回的光束获得的放大图像朝向显示屏形成。

9. 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。

10. 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。

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