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11. 发明授权

US07857462B2 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，投影型图像显示装置和投影型图像显示系统
公开(公告)号：US07857462B2
公开(公告)日：2010-12-28
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： G03B21/14 , 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。

12. 发明授权

US07701639B2 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：US07701639B2
公开(公告)日：2010-04-20
申请号：US11870646
申请日：2007-10-11
申请人： Takanori Hisada , Koji Hirata , Masahiko Yatsu
发明人： Takanori Hisada , Koji Hirata , Masahiko Yatsu
IPC分类号： G02B3/00 , G02B9/00 , G02B13/18 , G02B3/02
CPC分类号： G02B13/16 , G02B13/18 , G02B27/0068
摘要： A projection-type display apparatus, comprises a front lens group having a plural number of lenses, each having rotationally symmetric surface configuration, a rear lens group, being disposed in rear of the front lens group, including a refractive lens for diverting a light and having a rotationally symmetric surface configuration, and a plural number of free curved surface lenses, each having a rotationally asymmetric free curved surface configuration, and a reflection mirror, being disposed in rear of the rear lens group, having a convex configuration into a direction of reflection of light and a rotationally asymmetric free curved surface configuration, at least in a part thereof.
摘要翻译：一种投影式显示装置，包括具有旋转对称表面构造的多个透镜的前透镜组，设置在前透镜组后部的后透镜组，包括用于转向光的折射透镜和具有旋转对称表面构造的多个自由曲面透镜，以及多个具有旋转非对称自由曲面构造的自由曲面透镜，以及设置在后透镜组后部的反射镜，其具有朝向至少在其一部分中，光的反射和旋转不对称的自由曲面构型。

13. 发明授权

US07467872B2 Projection optical unit and projection type video display device using the unit 有权
标题翻译：投影光学单元和投影型视频显示设备使用该单元
公开(公告)号：US07467872B2
公开(公告)日：2008-12-23
申请号：US11258384
申请日：2005-10-26
申请人： Takanori Hisada , Hiroki Yoshikawa , Tetsu Ohishi , Masahiko Yatsu , Koji Hirata
发明人： Takanori Hisada , Hiroki Yoshikawa , Tetsu Ohishi , Masahiko Yatsu , Koji Hirata
IPC分类号： G03B21/22
CPC分类号： G03B21/10 , G02B13/16 , G02B27/0025
摘要： In the image display device, a projection lens including a plurality of lenses for enlarging an image from an image display element is constituted of a front group and a rear group. The rear group includes at least one free-shaped-surface lens including a surface having a rotationally asymmetrical shape. Furthermore, the device includes at least one free-shaped-surface mirror having a rotationally asymmetrical reflection surface. Accordingly, a set can be formed to be compact while correcting trapezoidal distortion and aberration.
摘要翻译：在图像显示装置中，包括用于从图像显示元件放大图像的多个透镜的投影透镜由前组和后组构成。后组包括至少一个具有旋转不对称形状的表面的自由形状的透镜。此外，该装置包括至少一个具有旋转不对称反射表面的自由形状的反射镜。因此，可以在校正梯形失真和像差的同时形成一个组合。

14. 发明申请

US20070291236A1 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：US20070291236A1
公开(公告)日：2007-12-20
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： G03B21/28
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。

15. 发明授权

US08733953B2 Display apparatus and projection type lighting apparatus therefor 有权
标题翻译：显示装置及投影型照明装置
公开(公告)号：US08733953B2
公开(公告)日：2014-05-27
申请号：US13021101
申请日：2011-02-04
申请人： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
发明人： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
IPC分类号： G03B21/20
CPC分类号： G03B21/62 , G02F1/133526 , G02F1/133604 , G02F1/133605 , G02F1/133611 , G02F1/13362 , G02F1/13471 , G02F2001/133607 , G02F2001/133622 , G03B21/208 , G03B21/26 , G03B21/28 , H04N9/3155
摘要： A display apparatus includes a light source which is configured to emit a light, a first light modulation unit which is configured modulate the light emitted from said light source, a first drive unit which is configured to drive said first light modulation unit, a projection unit, which is configured to project the light from said first light modulation unit enlargedly, a second light modulation unit, which is configured to modulate the light emitted from said projection unit so as to be emitted to an observer side, a second drive unit which is configured to drive said second light modulation unit, and an optical direction conversion unit, which is configured to convert the light from said projection unit so that the light is incident upon an incident surface of said second light modulation unit in a direction approximately perpendicular thereto.
摘要翻译：一种显示装置，包括被配置为发光的光源，被配置为调制从所述光源发射的光的第一光调制单元，被配置为驱动所述第一光调制单元的第一驱动单元，投影单元其被配置为从所述第一调光单元放大的光投射第二光调制单元，其被配置为调制从所述投影单元发射的光以被发射到观察者侧;第二驱动单元，其是被配置为驱动所述第二光调制单元，以及光学方向转换单元，其被配置为转换来自所述投影单元的光，使得光在与所述第二光调制单元的大致垂直的方向上入射到所述第二调光单元的入射表面。

16. 发明授权

US08573787B2 Projection type display apparatus 有权
标题翻译：投影式显示装置
公开(公告)号：US08573787B2
公开(公告)日：2013-11-05
申请号：US13773677
申请日：2013-02-22
申请人： Koji Hirata , Masahiko Yatsu , Takanori Hisada
发明人： Koji Hirata , Masahiko Yatsu , Takanori Hisada
IPC分类号： G03B21/28
CPC分类号： G03B21/28
摘要： In a projection type display apparatus for enabling to display an image, by projecting an image on an image display element(s), enlargedly, upon a nearly horizontal surface, such as, a table, a reflection mirror for reflecting a light from a light source is so disposed that an optical axis of the light source is nearly perpendicular to an optical axis of a lens group having a plural number of lens elements, which are disposed symmetric with respect to the optical axis.
摘要翻译：在能够显示图像的投影型显示装置中，通过在诸如桌子的近似水平的表面上放大地在图像显示元件上投影图像，用于反射来自光的光的反射镜光源被设置为使得光源的光轴几乎垂直于具有相对于光轴对称设置的多个透镜元件的透镜组的光轴。

17. 发明授权

US08408717B2 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：US08408717B2
公开(公告)日：2013-04-02
申请号：US13473025
申请日：2012-05-16
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 includes a first lens group including a plural number of lenses being disposed in a direction of propagation light with respect to an image display element, a second lens group including a plural number of lenses being disposed in a direction of propagation light with respect to said first lens group and a reflection mirror, which is configured to reflect light emitted from at least one of said first and second lens groups, so as to project the light obliquely upon a screen. A ratio (Lo/Lp) of a diagonal size (Lo) of said screen and a distance (Lp) from a center of said reflection mirror to said screen is at least 2, and the second lens group includes a refractive lens having a negative power and a rotationally symmetric surface configuration.
摘要翻译：投影型图像显示装置包括：第一透镜组，其包括相对于图像显示元件沿传播光的方向设置的多个透镜;第二透镜组，包括沿传播方向设置的多个透镜; 相对于所述第一透镜组的光和反射镜，被配置为反射从所述第一和第二透镜组中的至少一个发射的光，以将光倾斜地投射在屏幕上。所述屏幕的对角线尺寸（Lo）和从所述反射镜的中心到所述屏幕的距离（Lp）的比（Lo / Lp）至少为2，并且所述第二透镜组包括具有负的折射透镜功率和旋转对称的表面配置。

18. 发明申请

US20130077063A1 Projection Display System 有权
标题翻译：投影显示系统
公开(公告)号：US20130077063A1
公开(公告)日：2013-03-28
申请号：US13676587
申请日：2012-11-14
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： G03B21/56 , G03B21/14
CPC分类号： G03B21/56 , G02B17/08 , G02B17/0852 , G03B21/10 , G03B21/14 , G03B21/28
摘要： A projection display system includes a projection display unit and a member in a form of one of a windable screen, a white board and a notice board. The projection display unit projects an image light onto a projection plane of the member to display an image thereon. The projection display unit includes a light source, an image display element, a lighting optical system irradiating a beam of light from the light source on the image display element, and a projection optical system projecting the image light from the image display element toward the member. The projection optical system includes, in order toward the member from the image display element, a front lens group, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis.
摘要翻译：投影显示系统包括投影显示单元和可卷绕屏幕，白板和通知板之一的形式的构件。投影显示单元将图像光投射到构件的投影平面上以在其上显示图像。投影显示单元包括光源，图像显示元件，照射来自光源的光束的照明光学系统在图像显示元件上，以及投影光学系统，其将来自图像显示元件的图像光朝向该元件投影。投影光学系统为了朝向来自图像显示元件的构件，包括前透镜组和反射镜，其被成形为相对于光轴轴向不对称。

19. 发明授权

US08002418B2 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：US08002418B2
公开(公告)日：2011-08-23
申请号：US12961038
申请日：2010-12-06
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 includes an image display element, a lens group disposed in a direction of propagation of light with respect to the image display element and being formed with a plural number of lenses, a s reflection mirror configured to reflect light emitted from the lens group thereon so as to project the light on a screen, obliquely, and a housing configured to receive the reflection mirror and the lens group therein. The lens group is fixed on a bottom portion of the housing, and a part of the lens group is configured to enable movement of lenses of the lens group.
摘要翻译：投影型图像显示装置包括图像显示元件，相对于图像显示元件在光的传播方向上设置并且形成有多个透镜的透镜组，作为被配置为反射从所述图像显示元件发出的光的反射镜透镜组，以将光投射在屏幕上，倾斜地，以及被配置为在其中接收反射镜和透镜组的壳体。透镜组固定在壳体的底部，并且透镜组的一部分被配置为能够使透镜组的透镜移动。

20. 发明授权

US07914153B2 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：US07914153B2
公开(公告)日：2011-03-29
申请号：US12825881
申请日：2010-06-29
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 includes a lens group, being disposed adjacent to an image display element, which is configured to include a plural number of lenses, and a mirror, which is configured to reflect emission lights from the lens group, so as to project upon the screen obliquely. A ratio (Lo/Lp) between a distance (Lp) from a center of the mirror up to the screen and a diagonal size (Lo) of the screen is at least 2.
摘要翻译：一种投影型图像显示装置，包括与构成为包括多个透镜的图像显示元件相邻配置的透镜组以及被配置为反射来自透镜组的发光的反射镜，以便在屏幕上倾斜投影。从镜子的中心到屏幕的距离（Lp）和屏幕的对角线尺寸（Lo）之间的比率（Lo / Lp）至少为2。

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