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81. 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。

82. 发明授权

US06801366B2 Projection lens system and projection image display apparatus using the same 失效
标题翻译：投影透镜系统和使用其的投影图像显示装置
公开(公告)号：US06801366B2
公开(公告)日：2004-10-05
申请号：US10622642
申请日：2003-07-21
申请人： Koji Hirata , Naoyuki Ogura , Shigeru Mori , Takahiro Yoshida , Kazunari Nakagawa
发明人： Koji Hirata , Naoyuki Ogura , Shigeru Mori , Takahiro Yoshida , Kazunari Nakagawa
IPC分类号： G02B300
CPC分类号： G02B13/06 , H04N5/74
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost.
摘要翻译：当用于背投型图像显示装置的投影透镜系统具有具有非球面透镜表面的第一透镜组，第二透镜组，共享整个系统的几乎全部正折射力的第三透镜组时，第四透镜组具有非球面透镜表面，第五透镜组和第六透镜组，所述第六透镜组包括具有非球面形状的透镜，其中凹面朝向屏幕侧，并且边缘区域中的折光力弱于周围的折光力可以以低成本实现光轴，具有大开口率（低F值），高焦距，宽视野角和足够的边缘光量比的投影透镜系统。

83. 发明授权

US06768594B2 Projection lens apparatus and rear projection type image display apparatus using the same 有权
标题翻译：投影透镜装置和使用其的背投型图像显示装置
公开(公告)号：US06768594B2
公开(公告)日：2004-07-27
申请号：US10113337
申请日：2002-03-28
申请人： Daisuke Imafuku , Naoyuki Ogura , Kazunari Nakagawa , Koji Hirata , Hidehiro Ikeda , Shuji Kato
发明人： Daisuke Imafuku , Naoyuki Ogura , Kazunari Nakagawa , Koji Hirata , Hidehiro Ikeda , Shuji Kato
IPC分类号： G02B300
CPC分类号： G02B13/08
摘要： In a projection lens, there are arranged in order from a screen side, a first lens group including a meniscus lens having a convex lens surface in a central portion toward a screen with refracting power, a second lens group including a lens having a convex lens surface in a central portion toward a video generating source, a third lens group including a lens having convex lens surfaces in both sides with positive refracting power, a fourth lens group including a lens having a convex lens surface in a central portion toward the video generating source with positive refracting power, and a fifth lens group including a lens having a concave lens surface toward the screen with negative refracting power. An entrance pupil is arranged between incident and emitting surfaces of a power lens.
摘要翻译：在投影透镜中，从屏幕侧依次配置第一透镜组，第一透镜组包括具有中心部分的具有折射力的屏幕的凸透镜表面的弯月形透镜;第二透镜组，包括具有凸透镜的透镜在朝向视频产生源的中心部分中的表面;第三透镜组，包括具有正折射力的两侧具有凸透镜表面的透镜;第四透镜组，包括在朝向视频产生的中心部分具有凸透镜表面的透镜具有正折射力的源;以及第五透镜组，包括具有朝向屏幕的凹透镜表面的透镜，具有负折射率。入射光瞳配置在功率透镜的入射面和发射面之间。

84. 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。

85. 发明授权

US08690345B2 Projection image display apparatus having a first lens and a second lens adjacent to the screen 有权
标题翻译：具有与屏幕相邻的第一透镜和第二透镜的投影图像显示装置
公开(公告)号：US08690345B2
公开(公告)日：2014-04-08
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。

86. 外观设计

USD647931S1 Lens for projector 有权
标题翻译：投影机镜头
公开(公告)号：USD647931S1
公开(公告)日：2011-11-01
申请号：US29380282
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

87. 外观设计

USD639076S1 Mirror for projector 有权
标题翻译：投影镜
公开(公告)号：USD639076S1
公开(公告)日：2011-06-07
申请号：US29380273
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

88. 发明授权

US07404646B2 Projection lens apparatus and rear projection type image display apparatus 失效
标题翻译：投影透镜装置和背投型图像显示装置
公开(公告)号：US07404646B2
公开(公告)日：2008-07-29
申请号：US11060251
申请日：2005-02-18
申请人： Yuriko Inadachi , Shuji Kato , Hidehiro Ikeda , Naoyuki Ogura , Koji Hirata
发明人： Yuriko Inadachi , Shuji Kato , Hidehiro Ikeda , Naoyuki Ogura , Koji Hirata
IPC分类号： G03B21/20 , G03B9/00
CPC分类号： G02B13/16 , G02B13/18 , G03B21/10 , G03B21/20
摘要： A projection lens apparatus includes a plurality of lenses, for enlarging and projecting, onto a screen, an original image displayed on an image generation source. The plurality of lenses are arranged, beginning with the lens nearest the screen, as first to sixth lens groups. The fourth lens group includes one meniscus lens that has a positive refracting power and has a concave lens surface directed toward the screen. The concave lens surface of the meniscus lens included in the fourth group lens has a curvature in the vicinity of an outer portion of the concave lens surface that is smaller than a curvature in a predetermined area of the concave lens surface defined between a light axis of the concave lens surface of the meniscus lens and the smaller curvature of the concave lens surface in the vicinity of the outer portion of the concave lens surface.
摘要翻译：投影透镜装置包括多个透镜，用于将显示在图像产生源上的原始图像放大并投影到屏幕上。多个透镜从最靠近屏幕的透镜开始设置为第一至第六透镜组。第四透镜组包括具有正折射率的一个弯月形透镜，并且具有指向屏幕的凹透镜表面。包括在第四组透镜中的凹凸透镜的凹透镜表面在凹透镜表面的外部附近具有小于在凹透镜表面的预定区域中的曲率的曲率，所述凹透镜表面的光轴凹透镜的凹透镜表面和凹透镜表面在凹透镜表面的外部附近的较小曲率。

89. 发明申请

US20050001970A1 Liquid crystal display apparatus and optical device for use therein 审中-公开
标题翻译：液晶显示装置及其中使用的光学装置
公开(公告)号：US20050001970A1
公开(公告)日：2005-01-06
申请号：US10898978
申请日：2004-07-27
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： G02F1/1333 , G02F1/13 , G02F1/133 , G02F1/1335 , G03B21/16 , H04N5/74 , H04N9/31
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。

90. 发明授权

US06624950B2 Projection lens system and projection image display apparatus using the same 失效
标题翻译：投影透镜系统和使用其的投影图像显示装置
公开(公告)号：US06624950B2
公开(公告)日：2003-09-23
申请号：US10142864
申请日：2002-05-13
申请人： Koji Hirata , Naoyuki Ogura , Shigeru Mori , Takahiro Yoshida , Kazunari Nakagawa
发明人： Koji Hirata , Naoyuki Ogura , Shigeru Mori , Takahiro Yoshida , Kazunari Nakagawa
IPC分类号： G02B300
CPC分类号： G02B13/06 , H04N5/74
摘要： A projection lens system for enlarging and displaying on a screen an original image from an image generating source, includes a first lens having positive refractive power, a second aberration correction lens, and a third lens, positioned nearest the image generating source and having a concave lens surface thereof facing the screen. The third lens has a profile such that its refractive power at a marginal area adjacent a peripheral edge thereof is less than its refractive power at an area adjacent an optical axis of said projection lens system. The surface of the third lens facing the image generating source is in contact with a cooling liquid which cools the image generating source.
摘要翻译：一种投影透镜系统，用于从屏幕上放大和显示来自图像产生源的原始图像，包括具有正屈光力的第一透镜，第二像差校正透镜和第三透镜，其位于最靠近图像生成源的位置并具有凹入其透镜表面面向屏幕。第三透镜具有轮廓，使得其邻近其周缘的边缘区域的屈光力小于在与所述投影透镜系统的光轴相邻的区域处的屈光力。面对图像发生源的第三透镜的表面与冷却图像生成源的冷却液接触。

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