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41. 发明授权

US06869184B2 Polarized-light converting unit and projector using the same 失效
标题翻译：偏振光转换单元和使用其的投影仪
公开(公告)号：US06869184B2
公开(公告)日：2005-03-22
申请号：US10671880
申请日：2003-09-29
申请人： Masahiko Yatsu , Koji Hirata , Naoyuki Ogura
发明人： Masahiko Yatsu , Koji Hirata , Naoyuki Ogura
IPC分类号： G02B5/30 , G02B27/18 , G02B27/28 , G03B21/00 , G03B21/14
CPC分类号： G02B27/283
摘要： Disclosed is a polarized-light converting unit, which is excellent in contrast performance and realizes high reliability and an increase in its life, and a projector device using the converting unit. The polarized-light converting unit includes first and second polarizing beam splitters provided in an integral form. The first polarizing beam splitter includes two incident planes on which two types of color light are respectively incident. The second polarizing beam splitter includes both a ¼-wave plate and first dichroic mirror, and a ¼-wave plate and a second dichroic mirror, both of which are disposed on two adjacent surfaces different from a junction surface with the first polarizing beam splitter and an outgoing surface thereof.
摘要翻译：公开了一种偏振光转换单元，其具有优异的对比度性能并且实现高可靠性和增加其寿命，以及使用该转换单元的投影仪设备。偏振光转换单元包括以整体形式设置的第一和第二偏振分束器。第一偏振分束器包括两个入射平面，其上分别入射两种类型的彩色光。第二偏振光束分离器包括¼波片和第一分色镜，以及¼波片和第二分色镜，它们均设置在与第一偏振分束器的接合面不同的两个相邻表面上，其出射表面。

42. 发明申请

US20050012870A1 Projection type display device and back projection type display device using the same 有权
标题翻译：投影型显示装置和使用其的背投式显示装置
公开(公告)号：US20050012870A1
公开(公告)日：2005-01-20
申请号：US10842936
申请日：2004-05-10
申请人： Koji Hirata , Masahiko Yatsu
发明人： Koji Hirata , Masahiko Yatsu
IPC分类号： G02B27/18 , G02F1/133 , G03B21/00 , G03B21/10 , H04N5/66 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105
摘要： The system provides a projection-type video display device with high image quality and high reliability. The system improves color purity by cutting the yellow component from red and green, enhances the optical energy balance of the three colors by providing a reflection-type attenuation filter for reflecting light in the green optical path. The system also improves contrast characteristics by providing an optical phase difference compensator in the green optical path and increases durability of a video display element by arranging two optical parts having ultraviolet reflection coating in the blue optical path. Also an ultraviolet absorption filter for the incidence side of a blue liquid crystal panel is described.
摘要翻译：该系统提供了具有高图像质量和高可靠性的投影型视频显示设备。该系统通过从红色和绿色切割黄色成分来提高颜色纯度，通过提供用于反射绿色光路中的光的反射型衰减滤光片来增强三种颜色的光能平衡。该系统还通过在绿色光路中提供光学相位差补偿器并且通过在蓝色光路中布置具有紫外线反射涂层的两个光学部件来增加视频显示元件的耐久性，来改善对比度特性。还描述了用于蓝色液晶面板的入射侧的紫外线吸收滤光器。

43. 发明授权

US06535267B2 Liquid crystal display apparatus having liquid crystal display element immersed in cooling medium 有权
标题翻译：具有浸没在冷却介质中的液晶显示元件的液晶显示装置
公开(公告)号：US06535267B2
公开(公告)日：2003-03-18
申请号：US09886151
申请日：2001-06-22
申请人： Toru Numata , Yasuo Otsuka , Mikio Shiraishi , Koji Hirata , Naoyuki Ogura , Shigeru Inaoka , Kazunari Nakagawa , Shigeru Mori , Masahiko Yatsu
发明人： Toru Numata , Yasuo Otsuka , Mikio Shiraishi , Koji Hirata , Naoyuki Ogura , Shigeru Inaoka , Kazunari Nakagawa , Shigeru Mori , Masahiko Yatsu
IPC分类号： G02F11333
CPC分类号： H04N9/3141 , G02F1/133308 , G02F1/133385 , G02F1/133528 , H04N5/7441 , H04N9/3102
摘要： For obtaining both high brightness under condition of small-sized and simplified structure and suppression of increase in temperature of liquid crystal display elements and polarizing elements, in a liquid crystal display apparatus, comprising: a liquid crystal display element 2 for converting light from a light source into display picture depending on a driving signal; an optical projection system 1b containing a first optical element 1a and for projecting said light signal toward an object of projection; exit side polarizing elements 3b; a holding member 6 for holding them with the liquid crystal display element 2; and cooling medium 5; incident side polarizing elements 3a, wherein, a space is defined by either one of the incident side polarizing elements 3a and the liquid crystal display element 2, the first optical element 1a, between the liquid crystal display element 2 and the first optical element 1a, and the holding member 6, and said space is filled up with the cooling medium 5.
摘要翻译：为了在液晶显示装置和液晶显示装置的液晶显示装置和液晶显示装置的温度升高的条件下获得高亮度，并且抑制液晶显示元件和偏振元件的温度升高，包括：液晶显示元件2，用于将来自光的光根据驱动信号将其输入显示图像; 包含第一光学元件1a并用于将所述光信号投射到投影物体的光学投影系统1b; 出射侧偏振元件3b; 用于将其保持在液晶显示元件2上的保持构件6; 和冷却介质5; 入射侧偏振元件3a，其中，由液晶显示元件2和第一光学元件1a之间的入射侧偏振元件3a和液晶显示元件2中的任一个，第一光学元件1a，和保持构件6，并且所述空间被冷却介质5填充。

44. 发明授权

US09022581B2 Projection display system with two reflecting mirrors 有权
标题翻译：具有两个反射镜的投影显示系统
公开(公告)号：US09022581B2
公开(公告)日：2015-05-05
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： G03B21/28 , G03B21/56 , G02B17/08 , G03B21/10 , 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。

45. 发明申请

US20140126032A1 IMAGE DISPLAY DEVICE 审中-公开
标题翻译：图像显示设备
公开(公告)号：US20140126032A1
公开(公告)日：2014-05-08
申请号：US14124779
申请日：2011-06-10
申请人： Masahiko Yatsu , Koji Hirata
发明人： Masahiko Yatsu , Koji Hirata
IPC分类号： G02B26/10
CPC分类号： G02B26/10 , G02B13/16 , G02B17/08 , G02B17/0852 , G02B26/101 , H04N9/3129
摘要： An image display device having a scanning characteristic excellent in the linearity without being upsized is provided.The image display device includes: an optical scanning unit that scans a light emitted from a light source in a first direction and a second direction of an image plane due to a rotational movement of reciprocation of a reflecting surface of the light; and an optical system enlarges a scanning angle of the scanned light, in which the optical system has a free-form-surface lens on an optical scanning unit side, and has a free-form-surface mirror on an image plane side. The free-form-surface mirror may be arranged so that the first direction is substantially parallel to a first plane defined by an incident optical beam and a reflected light in the free-form-surface mirror when the optical scanning unit remains static in the center of the scanning area.
摘要翻译：提供一种图像显示装置，其具有在不增大尺寸的情况下具有优异线性的扫描特性。图像显示装置包括：光学扫描单元，其由于光的反射表面的往复运动而沿第一方向和图像平面的第二方向扫描从光源发射的光; 并且光学系统放大扫描光的扫描角度，其中光学系统在光学扫描单元侧具有自由表面透镜，并且在像面上具有自由曲面镜。自由表面镜可以被布置成使得当光学扫描单元在中心处保持静止时，第一方向基本上平行于由入射光束和自由形式表面反射镜中的反射光限定的第一平面的扫描区域。

46. 发明申请

US20110299047A1 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：US20110299047A1
公开(公告)日：2011-12-08
申请号：US13213626
申请日：2011-08-19
申请人： Koji Hirata , Takanori Hisada , Masahiko Yatsu
发明人： Koji Hirata , Takanori Hisada , Masahiko Yatsu
IPC分类号： G03B3/00
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 projection unit including a first lens group and a second lens group formed with a plural number of lenses, a reflection mirror configured to reflect light emitted from the second lens group thereon after the light passes through the first lens group so as to project the light on a screen obliquely, and a mechanism configured to enable movement of at least one lens of the second lens group in a direction of an optical axis. The first lens group is fixed with respect to a bottom portion of the mechanism and is configured to compensate for an aberration of an optical system thereof. The second lens group is configured to enable movement of at least one lens of the second lens group with respect to the first lens group and the bottom portion of the mechanism.
摘要翻译：投影型图像显示装置包括图像显示元件，包括第一透镜组的投影单元和形成有多个透镜的第二透镜组，反射镜，被配置为在光之后反射从第二透镜组发射的光穿过第一透镜组以将光投射到屏幕上倾斜，以及机构，其构造成使得能够沿着光轴的方向移动第二透镜组的至少一个透镜。第一透镜组相对于机构的底部固定并且被配置为补偿其光学系统的像差。第二透镜组被配置为能够使第二透镜组的至少一个透镜相对于第一透镜组和机构的底部部分移动。

47. 发明授权

US08020999B2 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：US08020999B2
公开(公告)日：2011-09-20
申请号：US12825801
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 an image display element, and a projection optical unit, which is configured to project an image displayed on the image display element, enlargedly, upon a screen. The projection optical unit includes a lens group, which is configured to compensate an distortion on an image surface on the screen, a mirror for compensating a trapezoidal distortion on the screen. The mirror reflects lights emitted from the lens group, so as to project upon the screen obliquely.
摘要翻译：投影型图像显示装置包括图像显示元件和投影光学单元，其被配置为在屏幕上放大地投影显示在图像显示元件上的图像。投影光学单元包括被配置为补偿屏幕上的图像表面上的失真的透镜组，用于补偿屏幕上的梯形失真的反射镜。镜子反射从镜头组发出的光线，以便倾斜地投影在屏幕上。

48. 外观设计

USD645068S1 Lens for projector 有权
公开(公告)号：USD645068S1
公开(公告)日：2011-09-13
申请号：US29380278
申请日：2010-12-02
申请人： Masayuki Fukui , Masahiko Yatsu , Naoyuki Ogura , Koji Hirata , Masanori Tsumura
设计人： Masayuki Fukui , Masahiko Yatsu , Naoyuki Ogura , Koji Hirata , Masanori Tsumura

49. 发明授权

US08002417B2 Projection-type image display apparatus 有权
标题翻译：投影式图像显示装置
公开(公告)号：US08002417B2
公开(公告)日：2011-08-23
申请号：US12840651
申请日：2010-07-21
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 , G03B21/147
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, 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 an 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; and a movement member for moving the plural number of lenses of the rear lens group.
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，至少包括折射透镜和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; 以及用于移动后透镜组的多个透镜的移动部件。

50. 发明申请

US20110128472A1 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：US20110128472A1
公开(公告)日：2011-06-02
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： G02F1/1335
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。

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