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公开(公告)号：US06502942B2
公开(公告)日：2003-01-07
申请号：US09967771
申请日：2001-09-28
申请人： Shigeru Mori , Yoji Nakayama , Shigeru Inaoka , Kazunari Nakagawa
发明人： Shigeru Mori , Yoji Nakayama , Shigeru Inaoka , Kazunari Nakagawa
IPC分类号： G03B2114
CPC分类号： G03B21/625
摘要： For providing a rear-projection type display apparatus, and a translucent type sheet for use therein, in particular, using an image modulation element, such as, a liquid crystal or a DMD (Digital Micro-mirror Device), etc., dissolving the speckle disturbances, thereby obtaining a picture being high in brightness and superior in resolution (focus property) thereof, wherein the translucent type screen comprises, a Fresnel sheet (6), at least on a light exit surface of which is formed a Fresnel lens (8), and a lenticular sheet (7), at least on a light incident surface of which is formed a lenticular lens (10) for diverging the light in horizontal direction, and the Fresnel sheet contains light diffusion material (9-1) while the lenticular sheet contains diffusion material (9-2), and being constructed so as to satisfy the condition as described below: 15≦Hf·HL≦45 Hf
摘要翻译： 为了提供背投型显示装置和用于其中的半透明型片材，特别是使用诸如液晶或DMD（数字微镜装置）等图像调制元件，将 散斑干扰，从而获得亮度高和分辨率（聚焦特性）优异的图像，其中半透明型屏幕包括菲涅耳片（6），至少在光出射表面上形成菲涅尔透镜（6） 8）和透镜片（7），至少在其光入射表面上形成用于在水平方向上发散光的双凸透镜（10），并且菲涅耳片包含光漫射材料（9-1），同时 透镜片包含扩散材料（9-2），并被构造成满足如下所述的条件：其中，Hf（％）表示指示菲涅耳片中扩散材料的含量的雾度值，HL ％）指示雾霾值 的透镜片中的扩散材料的含量。
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公开(公告)号：US06256083B1
公开(公告)日：2001-07-03
申请号：US09168921
申请日：1998-10-08
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： G02F11335
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 size and simplified structure, and for achieving suppression of increase in temperature of liquid crystal display elements and polarizing elements in a liquid crystal display apparatus, a liquid crystal display element converts light from a light source into a display picture depending on a driving signal, and an optical projection system contains a first optical element and projects a light signal toward an object of projection. A space is defined by an incident side polarizing element or the liquid crystal display element, the first optical element and a holding member, and the space is filled up with a cooling medium.
摘要翻译： 为了在小尺寸和简化结构的条件下获得高亮度，并且为了在液晶显示装置中实现液晶显示元件和偏振元件的温度升高抑制，液晶显示元件将来自光源的光转换成 根据驱动信号显示图像，并且光学投影系统包含第一光学元件并将光信号投射到投射对象。 空间由入射侧偏振元件或液晶显示元件，第一光学元件和保持构件限定，并且空间填充有冷却介质。
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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。
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4.发明授权Liquid crystal display apparatus having liquid crystal display element immersed in cooling medium 有权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。
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公开(公告)号：US06829031B2
公开(公告)日：2004-12-07
申请号：US10337400
申请日：2003-01-07
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。
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公开(公告)号：US4948237A
公开(公告)日：1990-08-14
申请号：US188482
申请日：1988-04-29
申请人： Koji Hirata , Kyohei Fukuda , Hiroki Yoshikawa , Shigeru Mori , Masayuki Muranaka , Isao Yoshizaki , Shigeru Inaoka , Hiroshi Jitsukata
发明人： Koji Hirata , Kyohei Fukuda , Hiroki Yoshikawa , Shigeru Mori , Masayuki Muranaka , Isao Yoshizaki , Shigeru Inaoka , Hiroshi Jitsukata
CPC分类号： G02B13/18
摘要： In a projection system wherein an optical system comprising a first lens for correcting a spherical aberration dependent on the aperture length, a second lens for enlargement and a third lens for correcting a field curvature, projects an image reproduced on a CRT having a curved phosphor surface, onto a screen, the third lens is spaced from the CRT so that the region of the phosphor surface which again totally reflects a light which has been totally reflected by a screen-side surface of the third lens is limited to the edge portion of an effective region of the phosphor surface.
摘要翻译： 在一种投影系统中，其中包括用于校正取决于孔径长度的球面像差的第一透镜的光学系统，用于放大的第二透镜和用于校正场曲率的第三透镜，投影在具有弯曲荧光粉表面的CRT上再现的图像 在屏幕上，第三透镜与CRT间隔开，使得再次完全反射已被第三透镜的屏幕侧表面完全反射的光的荧光体表面的区域被限制到第三透镜的边缘部分 荧光粉表面的有效区域。
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7.发明授权公开(公告)号：US06624950B2
公开(公告)日：2003-09-23
申请号：US10142864
申请日：2002-05-13
IPC分类号： G02B300
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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公开(公告)号：US5946142A
公开(公告)日：1999-08-31
申请号：US764649
申请日：1996-12-11
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. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.
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9.发明授权公开(公告)号：US06801366B2
公开(公告)日：2004-10-05
申请号：US10622642
申请日：2003-07-21
IPC分类号： G02B300
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。
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公开(公告)号：US5808704A
公开(公告)日：1998-09-15
申请号：US367931
申请日：1995-01-03
申请人： Hiroki Yoshikawa , Takahiko Yoshida , Kiyoshi Wada , Shigeru Mori , Tetsu Ohishi , Toshimitsu Watanabe , Koji Suso , Yoshimasa Yokoyama , Akira Takahashi , Yasuhiko Komatsu , Yoshinori Matsumura , Kazunari Nakagawa , Kohsuke Ozeki , Maki Furui , Naoko Kubo , Tutomu Simada , Tohru Mori , Satoshi Ishizuka
发明人： Hiroki Yoshikawa , Takahiko Yoshida , Kiyoshi Wada , Shigeru Mori , Tetsu Ohishi , Toshimitsu Watanabe , Koji Suso , Yoshimasa Yokoyama , Akira Takahashi , Yasuhiko Komatsu , Yoshinori Matsumura , Kazunari Nakagawa , Kohsuke Ozeki , Maki Furui , Naoko Kubo , Tutomu Simada , Tohru Mori , Satoshi Ishizuka
CPC分类号： H04N9/3141 , G03B21/10 , G03B21/16 , H04N5/7408 , H04R5/02 , H04N5/642 , H04N7/0122
摘要： A rear projection type image display apparatus having an arrangement that a projection distance of a projection lens thereof is shortened and a density of mounting of parts relating to an optical system and an electric system is made higher. Furthermore, a width of a rear portion of a housing of the rear projection type image display apparatus is reduced rearwards at any position from the upper portion to the lower portion thereof, and the lower portion of a back cover is depressed inwards. Thus, a space required to install the rear projection type image display apparatus can be reduced, the rear surface of the apparatus can be disposed on a wall without any gap when the apparatus is installed along the wall, and the overall body of the apparatus can be received deep into a corner of walls when the apparatus is installed at the corner.
摘要翻译： 具有其投影透镜的投影距离缩短并且与光学系统和电气系统相关的部件的安装密度更高的背投型图像显示装置。 此外，背投影型图像显示装置的壳体的后部的宽度在从上部到下部的任何位置处向后减小，并且后盖的下部向内凹入。 因此，可以减少安装后投影型图像显示装置所需的空间，当装置沿壁安装时，可以将设备的后表面设置在没有任何间隙的壁上，并且装置的整体可以 当设备安装在角落时，深深地被收到墙壁的一角。
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