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1. 发明授权

US5743610A Projection-type display apparatus 失效
标题翻译：投影型显示装置
公开(公告)号：US5743610A
公开(公告)日：1998-04-28
申请号：US697707
申请日：1996-08-27
申请人： Akitaka Yajima , Motoyuki Fujimori , Mutsuya Furuhata , Tomiyoshi Ushiyama , Terunaga Koide , Toshiaki Hashizume , Kiyoshi Miyashita , Hiroshi Harima , Keijiro Naito
发明人： Akitaka Yajima , Motoyuki Fujimori , Mutsuya Furuhata , Tomiyoshi Ushiyama , Terunaga Koide , Toshiaki Hashizume , Kiyoshi Miyashita , Hiroshi Harima , Keijiro Naito
IPC分类号： G02B27/14 , G03B21/14 , H04N5/74 , H04N9/31
CPC分类号： G03B33/12 , G02B27/1046 , G02B27/1073 , G02B27/145 , G02B27/149 , H04N9/3105 , H04N9/312 , H04N9/3141 , H04N9/3144 , H04N9/317 , H04N9/3182
摘要： A projection display comprising: a square column dichroic prism composed of four triangle prisms having equal refractive index together whose cross sections are right isosceles triangles such that three light valves are located adjacent to three exterior peripheral surfaces of dichroic prism to receive colored and modulated light beams therefrom and; a filter for absorbing light with a specified wavelength range, leaked from surface of dichroic prism at the opposite side of incident light surface and directed to liquid crystal light valve, the filter being located between liquid crystal light valves and surface of dichroic prism. As for construction of the dichroic prism itself, specifically, of the four aforementioned triangular prisms, the first triangular prism and the aforementioned third triangular prism are mutually affixed in a condition in which there is a first step difference in the vertical direction. The first exposed side is formed on one edge of the affixed side of the first triangular prism. Similarly, the second triangular prism and the fourth triangular prism are attached to each other such that there is a second step difference on the same edge, and a second exposed side is formed on one edge of the affixed surface of the second triangular prism. Further, the first and the third triangular prisms and the second and the fourth triangular prisms are attached, with a step difference between them, in such a way that the aforementioned first exposed side and the aforementioned second exposed side are located on the edges facing the same direction; and a third exposed surface that is orthogonal to the aforementioned first and second exposed surfaces is formed between the aforementioned first triangular prism and the aforementioned second triangular prism.
摘要翻译：一种投影显示器，包括：方柱列分色棱镜，其由具有相等折射率的四个三角棱镜组成，其横截面为右等腰三角形，使得三个光阀位于与分色棱镜的三个外周表面相邻以接收有色调制光束和用于吸收具有特定波长范围的光的滤光器，从入射光面的相对侧的二向色棱镜的表面泄漏并且指向液晶光阀，该滤光器位于液晶光阀和二向色棱镜表面之间。关于二向色棱镜本身的结构，具体地，在上述四个上述三角棱镜中，第一三角形棱镜和上述第三三棱镜在垂直方向上具有第一阶差的状态下相互固定。第一暴露侧形成在第一三角形棱镜的固定侧的一个边缘上。类似地，第二三角棱镜和第四三角棱镜彼此附接，使得在同一边缘上存在第二阶梯差，并且第二暴露侧形成在第二三角棱镜的固定表面的一个边缘上。此外，第一和第三三角形棱镜和第二和第四三角棱镜以它们之间的台阶差附接，使得上述第一暴露侧和上述第二暴露侧位于面向同方向并且在上述第一三角棱镜和上述第二三棱镜之间形成有与上述第一和第二暴露表面正交的第三暴露表面。

2. 发明授权

US5909944A Projection-type display apparatus 失效
公开(公告)号：US5909944A
公开(公告)日：1999-06-08
申请号：US34599
申请日：1998-03-03
申请人： Akitaka Yajima , Motoyuki Fujimori , Mutsuya Furuhata , Tomiyoshi Ushiyama , Terunaga Koide , Toshiaki Hashizume , Kiyoshi Miyashita , Hiroshi Harima , Keijiro Naito
发明人： Akitaka Yajima , Motoyuki Fujimori , Mutsuya Furuhata , Tomiyoshi Ushiyama , Terunaga Koide , Toshiaki Hashizume , Kiyoshi Miyashita , Hiroshi Harima , Keijiro Naito
IPC分类号： G02B27/14 , G03B21/14 , H04N5/74 , H04N9/31
CPC分类号： G03B33/12 , G02B27/1046 , G02B27/1073 , G02B27/145 , G02B27/149 , H04N9/3105 , H04N9/312 , H04N9/3141 , H04N9/3144 , H04N9/317 , H04N9/3182
摘要： A projection-type display apparatus in which the entry of light rays to the back side of liquid crystal light valves from dichroic prism that composes optical system light synthesizer is prevented. To this end, a projection display according to the present invention preferably includes a color synthesizer for combining colored and modulated light beams, comprising: a square column dichroic prism composed of four triangle prisms having equal refractive index together whose cross sections are right isosceles triangles such that three light valves are located adjacent to three exterior peripheral surfaces of dichroic prism to receive colored and modulated light beams therefrom and; a filter for absorbing light with a specified wavelength range, leaked from surface of dichroic prism at the opposite side of incident light surface and directed to liquid crystal light valve, the filter being located between liquid crystal light valves and surface of dichroic prism. As for construction of the dichroic prism itself, specifically, of the four aforementioned triangular prisms, the first triangular prism and the aforementioned third triangular prism are mutually affixed in a condition in which there is a first step difference in the vertical direction. The first exposed side is formed on one edge of the affixed side of the first triangular prism. Similarly, the second triangular prism and the fourth triangular prism are attached to each other such that there is a second step difference on the same edge, and a second exposed side is formed on one edge of the affixed surface of the second triangular prism. Further, the first and the third triangular prisms and the second and the fourth triangular prisms are attached, with a step difference between them, in such a way that the aforementioned first exposed side and the aforementioned second exposed side are located on the edges facing the same direction; and a third exposed surface that is orthogonal to the aforementioned first and second exposed surfaces is formed between the aforementioned first triangular prism and the aforementioned second triangular prism.

3. 发明授权

US06364492B1 Projector 失效
标题翻译：投影机
公开(公告)号：US06364492B1
公开(公告)日：2002-04-02
申请号：US09077826
申请日：1998-06-04
申请人： Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita , Takeshi Takizawa , Mutsuya Furuhata
发明人： Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita , Takeshi Takizawa , Mutsuya Furuhata
IPC分类号： G03B2114
CPC分类号： H04N9/3141 , G02F1/133385 , G03B21/145 , G03B21/16 , H04N5/7441 , H04N9/3102 , H04N9/3105 , H04N9/3144
摘要： In a projection display provided with an optical unit, a power source unit, an external case to store the optical unit and the power source unit, a suction opening (75) is formed in one end part of the power source unit, a discharge opening (77) is formed in the other end part, and the suction opening (75) is arranged in the vicinity of an air inlet in the external case. Because the suction opening (75) and the discharge opening (77) are provided, the inside of the power source unit can be independently and efficiently cooled, and the optical unit and the power source unit can be arranged closely to each other.
摘要翻译：在设置有光学单元，电源单元，存储光学单元的外部壳体和电源单元的投影显示器中，在电源单元的一个端部形成有吸入口（75），排出口（77）形成在另一端部，吸入口（75）配置在外壳的空气入口附近。由于设置有吸入口（75）和排出口（77），所以能够独立且有效地冷却电源单元的内部，能够使光学单元和电源单元彼此靠近地配置。

4. 发明授权

US5951136A Projection display apparatus 失效
标题翻译：投影显示装置
公开(公告)号：US5951136A
公开(公告)日：1999-09-14
申请号：US943730
申请日：1997-10-03
申请人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
发明人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
IPC分类号： G03B21/00 , G02F1/133 , G03B21/14 , G03B21/16 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3141 , G03B21/006 , G03B21/145 , G03B21/16 , H04N9/3105 , H04N9/3144 , G02F1/133385 , H04N5/7441 , H04N9/3102
摘要： A projection display device capable of improving cooling efficiency of the power unit includes a light source lamp unit, a projection lens unit, an exhaust fan provided near the light source lamp unit for ventilating an outer case, and a ventilating path provided inside the power unit. A suction fan is provided at the inlet of the ventilating path which is connected to the cooling air intake port through a duct cover to directly conduct fresh air into the ventilating path. Because the interior of the power unit is cooled by fresh air which is cooler than the air inside the outer case, cooling efficiency is enhanced.
摘要翻译：能够提高动力单元的冷却效率的投影型显示装置包括：光源灯单元，投影透镜单元，设置在用于使外壳通风的光源灯单元附近的排气扇;以及设置在动力单元内部的通风路径。在通风路径的入口处设置有吸风扇，该风扇通过管道盖连接到冷却空气吸入口，以将新鲜空气直接进入通风路径。由于动力单元的内部通过比外壳内的空气更冷的新鲜空气来冷却，所以冷却效率提高。

5. 再颁专利

USRE38006E1 Projector 有权
标题翻译：投影机
公开(公告)号：USRE38006E1
公开(公告)日：2003-02-25
申请号：US09941935
申请日：2001-09-13
申请人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
发明人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
IPC分类号： G03B2100
CPC分类号： H04N9/3141 , G02F1/133385 , G03B21/006 , G03B21/145 , G03B21/16 , H04N5/7441 , H04N9/3102 , H04N9/3105 , H04N9/3144
摘要： A projection display device projector capable of improving cooling efficiency of the power unit includes a light source lamp unit, a projection lens unit, an exhaust fan provided near the light source lamp unit for ventilating an outer case, and a ventilating path provided inside the power unit. A suction fan is provided at the inlet of the ventilating path which is connected to the cooling air intake port through a duct cover to directly conduct fresh air into the ventilating path. Because the interior of the power unit is cooled by fresh air which is cooler than the air inside the outer case, cooling efficiency is enhanced.
摘要翻译： A 投影显示装置投影仪包括：光源灯单元，投影透镜单元，靠近用于使外壳通风的光源灯单元和设置在动力单元内部的通风路径。在通风路径的入口处设置有吸风扇，该风扇通过管道盖连接到冷却空气吸入口，以将新鲜空气直接进入通风路径。由于动力单元的内部通过比外壳内的空气更冷的新鲜空气来冷却，所以冷却效率提高。

6. 发明授权

US06637895B2 Projector 有权
公开(公告)号：US06637895B2
公开(公告)日：2003-10-28
申请号：US09983986
申请日：2001-10-26
申请人： Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita , Takeshi Takizawa , Mutsuya Furuhata
发明人： Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita , Takeshi Takizawa , Mutsuya Furuhata
IPC分类号： G03B2116
CPC分类号： H04N9/3141 , G02F1/133385 , G03B21/145 , G03B21/16 , H04N5/7441 , H04N9/3102 , H04N9/3105 , H04N9/3144
摘要： In a projection display provided with an optical unit, a power source unit, an external case to store the optical unit and the power source unit, a suction opening (75) is formed in one end part of the power source unit, a discharge opening (77) is formed in the other end part, and the suction opening (75) is arranged in the vicinity of an air inlet in the external case. Because the suction opening (75) and the discharge opening (77) are provided, the inside of the power source unit can be independently and efficiently cooled, and the optical unit and the power source unit can be arranged closely to each other.

7. 发明授权

US06203158B1 Projector 有权
标题翻译：投影机
公开(公告)号：US06203158B1
公开(公告)日：2001-03-20
申请号：US09362660
申请日：1999-07-29
申请人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
发明人： Mutsuya Furuhata , Takeshi Takizawa , Motoyuki Fujimori , Akitoshi Kuroda , Shinji Haba , Kiyoshi Miyashita
IPC分类号： G03B2100
CPC分类号： H04N9/3141 , G02F1/133385 , G03B21/006 , G03B21/145 , G03B21/16 , H04N5/7441 , H04N9/3102 , H04N9/3105 , H04N9/3144
摘要： A projection display device capable of improving cooling efficiency of the power unit includes a light source lamp unit, a projection lens unit, an exhaust fan provided near the light source lamp unit for ventilating an outer case, and a ventilating path provided inside the power unit. A suction fan is provided at the inlet of the ventilating path which is connected to the cooling air intake port through a duct cover to directly conduct fresh air into the ventilating path. Because the interior of the power unit is cooled by fresh air which is cooler than the air inside the outer case, cooling efficiency is enhanced.
摘要翻译：能够提高动力单元的冷却效率的投影型显示装置包括：光源灯单元，投影透镜单元，设置在用于使外壳通风的光源灯单元附近的排气扇;以及设置在动力单元内部的通风路径。在通风路径的入口处设置有吸风扇，该风扇通过管道盖连接到冷却空气吸入口，以将新鲜空气直接进入通风路径。由于动力单元的内部通过比外壳内的空气更冷的新鲜空气来冷却，所以冷却效率提高。

8. 发明授权

US06856375B2 Liquid crystal light valve and projection display device including the same 有权
标题翻译：液晶光阀和包括其的投影显示装置
公开(公告)号：US06856375B2
公开(公告)日：2005-02-15
申请号：US09925315
申请日：2001-08-10
申请人： Akitaka Yajima , Mutsuya Furuhata , Hisashi Iechika , Toshio Matsumiya
发明人： Akitaka Yajima , Mutsuya Furuhata , Hisashi Iechika , Toshio Matsumiya
IPC分类号： G02B5/30 , G02F1/13 , G02F1/1335 , G02F1/13363 , G03B21/00 , G09F9/00 , H04N5/74 , H04N9/31 , G03B19/18
CPC分类号： H04N9/3105 , G02F1/133528 , H04N5/7441 , H04N9/3144 , H04N9/3167
摘要： The invention provides a liquid crystal light valve that makes it possible to increase the life of a polarizer at a light-exiting-surface side of the liquid crystal light valve by reducing the burden thereon, and a projection display device that incorporates the liquid crystal light valve. In liquid crystal light valves that modulate incident light in accordance with image information, at least two corresponding polarizers are provided respectively at the light-exiting-surface sides of liquid crystal panels.
摘要翻译：本发明提供一种液晶光阀，其可以通过减轻其上的负担来增加在液晶光阀的出光面侧的偏振片的寿命，并且将投射显示装置结合了液晶光阀。在根据图像信息调制入射光的液晶光阀中，分别在液晶面板的光出射面侧设置至少两个对应的偏振器。

9. 发明授权

US06540360B2 Projector 有权
标题翻译：投影机
公开(公告)号：US06540360B2
公开(公告)日：2003-04-01
申请号：US09401657
申请日：1999-09-23
申请人： Mutsuya Furuhata , Akitaka Yajima , Shinji Haba
发明人： Mutsuya Furuhata , Akitaka Yajima , Shinji Haba
IPC分类号： G03B2114
CPC分类号： G03B21/006
摘要： A projector is provided which can project a high quality image unaffected by dust, or the like, scattered in the projector by preventing the temperature of light-modulating elements from rising. Light transmissive plates are adhered to the light emitting surface of a liquid crystal panel for red light and the light emitting surface of a liquid crystal panel for green light. The amount of heat transmitted from the polarizing plates, which generate the heat, to the liquid crystal panels is reduced by the light transmissive plates. In addition, dust, scattered in the projector, does not stick onto the light emitting surfaces of the liquid crystal panels. In contrast, a light transmissive plate is not provided at the light emitting surface of liquid crystal panel for blue light having a high energy value per unit quantity of light. Thus, the problem of a light transmissive plate preventing heat dissipation at the liquid crystal panel is eliminated, so that efficient cooling can be achieved. The relative luminosity factor of blue light B is low, so that dust is not noticeable on the screen even when it sticks onto the light emitting surface of the liquid crystal panel.
摘要翻译：提供一种可以通过防止调光元件的温度升高而投影散射在投影仪中的灰尘等不受影响的高质量图像的投影仪。透光板粘附到用于红光的液晶面板的发光面和用于绿光的液晶面板的发光面。通过透光板减少从产生热量的偏振片传递到液晶面板的热量。此外，散射在投影仪中的灰尘不粘附到液晶面板的发光表面上。相反，在每单位光量具有高能量值的蓝色光的液晶面板的发光面上不设置透光性板。因此，消除了防止液晶面板散热的透光板的问题，从而可以实现有效的冷却。蓝光B的相对亮度因子低，即使粘在液晶面板的发光面上也不会在屏幕上显示灰尘。

10. 发明授权

US06840628B2 Cooler for electro optic device and projector 有权
标题翻译：电光设备和投影机的冷却器
公开(公告)号：US06840628B2
公开(公告)日：2005-01-11
申请号：US10472049
申请日：2002-05-15
申请人： Jun Arai , Toshio Matsumiya , Mutsuya Furuhata
发明人： Jun Arai , Toshio Matsumiya , Mutsuya Furuhata
IPC分类号： G03B33/12 , G03B21/00 , G03B21/16 , G09F9/00 , H04N5/74 , H04N9/31 , H05K7/20 , G03B21/18
CPC分类号： H04N9/3141 , G03B21/16 , H04N9/3105 , H04N9/3144
摘要： A panel cooling system A has a pair of Sirocco fans 51A, 51B arranged at both sides of the radial direction of a projection lens 46, a suction duct portion 52A and an exhaust duct portion 52B. The suction duct portion 52A communicates a suction port of the undersurface of an armored case 2 with a suction side of each of the Sirocco fan 51A, 51B, and the exhaust duct portion 52B communicates an exhaust side of each of the Sirocco fans 51A, 51B and color lights R, G, B of an optical part. Thereby, a cooling air is blown to the vicinity of each light incident position of the color lights R, G, B of the optical part for approximately the same air quantity, so that the cooling of the optical part is performed
摘要翻译：面板冷却系统A具有布置在投影透镜46的径向两侧的一对Sirocco风扇51A，51B，吸入管道部分52A和排气管道部分52B。吸入管道部分52A将铠装壳体2的下表面的吸入口与每个Sirocco风扇51A，51B的吸入侧连通，并且排气管道部分52B连通每个Sirocco风扇51A，51B的排气侧和光学部件的色光R，G，B。由此，对于大致相同的空气量，将冷却空气吹送到光学部件的色光R，G，B的每个光入射位置附近，从而进行光学部件的冷却

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