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11. 发明授权

US06637886B2 Projection display device 有权
公开(公告)号：US06637886B2
公开(公告)日：2003-10-28
申请号：US10349072
申请日：2003-01-23
申请人： Tomiyoshi Ushiyama , Akitaka Yajima
发明人： Tomiyoshi Ushiyama , Akitaka Yajima
IPC分类号： G03B2100
CPC分类号： G03B21/006
摘要： The invention accurately sets a polarization direction of a polarization element, and prevents deterioration of the usage efficiency of the light and a reduction in image contrast. Field lenses are provided on a projection display device. A polarizer is placed on a flat surface of a field lens. The flat surface of the field lens is provided with a reference shape to place the polarizer at the end thereof. The reference shape may be one or more planes provided on the end of the field lens. In addition, the reference shape may be a straight line drawn on the flat surface of the field lens.

12. 外观设计

USD420455S Replacement lamp for projector 失效
公开(公告)号：USD420455S
公开(公告)日：2000-02-08
申请号：US72650
申请日：1997-06-20
申请人： Shinji Haba , Tomiyoshi Ushiyama , Akitaka Yajima
设计人： Shinji Haba , Tomiyoshi Ushiyama , Akitaka Yajima

13. 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.

14. 发明授权

US07126648B2 Liquid crystal projector comprising a plurality of light shielding members fixed between the lens array and the polarized light generator 有权
标题翻译：液晶投影仪包括固定在透镜阵列和偏振光发生器之间的多个遮光构件
公开(公告)号：US07126648B2
公开(公告)日：2006-10-24
申请号：US10496140
申请日：2003-07-01
申请人： Makoto Fuse , Tomiyoshi Ushiyama
发明人： Makoto Fuse , Tomiyoshi Ushiyama
IPC分类号： G02F1/1335 , G02F1/1333 , G02B26/02
CPC分类号： G02B27/283 , G02B27/285 , G02F1/13362
摘要： Heat generation is inhibited in a polarized light generating optics system in a projector.A liquid crystal projector includes: lens arrays 140, 150 that generate partial light beams from a light beam emitted from a light source; and a polarized light generating optics system 160 that generates polarized light, which is to be supplied to liquid crystal light valves, from the partial light beams. The polarized light generating optics system 160 separates s-polarized light and p-polarized light by polarization separating films 64a. The s-polarized light is reflected from reflecting films 64b and is emitted directly. The p-polarized light is converted into s-polarized light by a selective phase difference plate 66 and is emitted therefrom. The polarized light generating optics system 160 is equipped with light shielding surfaces 62b that shield light from entering into the reflecting films 64b. The lens arrays 140, 150 are also equipped with light shielding members 143, 153 that act similarly as the light shielding surfaces. Disposing the light shielding members 143, 153 can inhibit heat generation on the light shielding surfaces 62b.
摘要翻译：在投影仪的偏振光生成光学系统中，发热被抑制。液晶投影仪包括：从光源发射的光束产生部分光束的透镜阵列140,150; 以及偏振光产生光学系统160，其从部分光束产生要供应到液晶光阀的偏振光。偏振光产生光学系统160通过偏振分离膜64a分离s偏振光和p偏振光。 s偏振光从反射膜64b反射并直接发射。 p偏振光通过选择性相位差板66转换成s偏振光并从其发射。偏振光生成光学系统160配备有遮光光入射到反射膜64b中的遮光面62b。透镜阵列140,150还配备有与遮光面类似地起作用的遮光部件143，153。设置遮光构件143,153可以抑制遮光面62b的发热。

15. 再颁专利

USRE39243E1 Optical element, polarization illumination device, and projector 有权
标题翻译：光学元件，偏振照明装置和投影仪
公开(公告)号：USRE39243E1
公开(公告)日：2006-08-22
申请号：US09985390
申请日：2001-11-02
申请人： Yasunori Ogawa , Akitaka Yajima , Tomiyoshi Ushiyama
发明人： Yasunori Ogawa , Akitaka Yajima , Tomiyoshi Ushiyama
IPC分类号： G02B5/30 , G02B27/28 , G03B21/00
CPC分类号： G02B27/285 , G02B27/283 , H04N9/3105 , H04N9/3167
摘要： Two polarization conversion element arrays are disclosed. Each polarization conversion element array is composed of a plurality of polarization conversion elements for converting light incident upon the polarization conversion element array to a linearly polarized light beam with a predetermined polarization direction. The plurality of polarization conversion elements are disposed opposite to each other with a predetermined space provided between at about the center of the light-outgoing surface of a lens array in the direction of arrangement. Of the light beams (s-polarized+p-polarized light beams) gathered by the lens array, light beam that is not incident upon the polarization conversion element and passes through the predetermined space is a light beam including a predetermined polarized light beam (s-polarized light beam) that is primarily made to leave the array 320a and an ineffective polarized light beam (p-polarized light beam). Of the light passing through and leaving the space, the required polarized light beam alone can be made to leave as an effective light beam by providing a polarization plate or the like at the light-outgoing side of the space.
摘要翻译：公开了两个偏振转换元件阵列。每个偏振转换元件阵列由多个偏振转换元件组成，用于将入射到偏振转换元件阵列上的光转换成具有预定偏振方向的线偏振光束。多个偏振转换元件以设置在透镜阵列的光出射表面的中心附近的布置方向彼此相对地设置有预定的空间。在由透镜阵列收集的光束（s偏振+ p偏振光束）中，未入射到偏振转换元件并通过预定空间的光束是包括预定偏振光束（s 偏振光束），其主要是离开阵列320a和无效偏振光束（p偏振光束）。在通过和离开空间的光中，通过在空间的光出射侧提供偏振板等，可以使所需的偏振光束单独地留下作为有效的光束。

16. 发明授权

US06994438B2 Optical component casing, optical device and projector 失效
标题翻译：光学元件外壳，光学设备和投影机
公开(公告)号：US06994438B2
公开(公告)日：2006-02-07
申请号：US10740492
申请日：2003-12-22
申请人： Taisuke Uehara , Tomiyoshi Ushiyama , Shohei Fujisawa , Hirotatsu Okubo
发明人： Taisuke Uehara , Tomiyoshi Ushiyama , Shohei Fujisawa , Hirotatsu Okubo
IPC分类号： G03B21/28 , G02F1/1335 , G02B26/08 , G02B27/14 , G02B7/182
CPC分类号： G03B21/2053 , G03B21/145
摘要： An optical component casing (40) that houses a plurality of optical components including a reflection mirror (424) and disposes the plurality of optical components on a planarly defined illumination optical axis (L1) has a holder (81) that holds the reflection mirror (424) and a housing main body (401) that houses the other optical components. A bulging portion (816) bulging in an out-plane direction of the reflection mirror (424) is formed on a side of the holder (81) opposite to the side on which the reflection mirror (424) is attached, the bulging portion (816) pivotally moving on the inner surface of the housing main body (401) to rotate the holder (81) relative to the housing main body (401), where a rotation center (P) of the holder (81) is substantially coincident with an intersecting point (Q) of the illumination optical axis (L1) and a reflection surface (424A) of the reflection mirror (424).
摘要翻译：容纳包括反射镜（424）的多个光学部件并将多个光学部件配置在平面限定的照明光轴（L 1）上的光学部件壳体（40）具有保持反射镜（424）和容纳其它光学部件的壳体主体（401）。在与安装有反射镜（424）的一侧相对的保持器（81）的一侧形成有在反射镜（424）的外侧方向上凸出的凸出部（816），凸出部 816）在壳体主体（401）的内表面上枢转运动，以使保持器（81）相对于壳体主体（401）旋转，其中保持器（81）的旋转中心（P）基本上与照明光轴（L 1）的交点（Q）和反射镜（424）的反射面（424A）。

17. 发明授权

US6141150A Dichroic prism, prism unit, and projection display apparatus 有权
标题翻译：二向色棱镜，棱镜单元和投影显示装置
公开(公告)号：US6141150A
公开(公告)日：2000-10-31
申请号：US117645
申请日：1998-08-03
申请人： Tomiyoshi Ushiyama , Akitaka Yajima , Yasunori Ogawa
发明人： Tomiyoshi Ushiyama , Akitaka Yajima , Yasunori Ogawa
IPC分类号： G02B5/04 , G02B27/10 , G02B27/14 , G02F1/1335 , G03B21/00 , G03B33/12
CPC分类号： G02B27/149 , G02B27/1073 , G02B27/145 , G02B5/04
摘要： At least one of four rectangular prisms in a dichroic prism is made longer than the other rectangular prisms. Parts of the rectangular surfaces of the long rectangular prisms partially protrude from the rectangular surfaces of the other rectangular prisms in the longitudinal direction. The protruding parts of the rectangular surfaces of the long rectangular prisms are not provided with a dichroic film. Such a construction makes it possible to prevent return light, which returns from the light emitting surface side of the dichroic prism and the dichroic prism, from emitting again from the light emitting surface.
摘要翻译： PCT No.PCT / JP97 / 04507 Sec。 371日期1998年8月3日 102（e）1998年8月3日PCT 1997年12月8日PCT二分色棱镜中的四个矩形棱镜中的至少一个比其他矩形棱镜长。长矩形棱镜的矩形表面的一部分从纵向方向上的其他矩形棱镜的矩形表面部分地突出。长矩形棱镜的矩形表面的突出部分不具有二向色膜。这种结构使得可以防止从二向色棱镜和二向色棱镜的发光表面侧返回的返回光再次从发光表面发射。

18. 再颁专利

USRE40251E1 Optical element, polarization illumination device, and projector 有权
标题翻译：光学元件，偏振照明装置和投影仪
公开(公告)号：USRE40251E1
公开(公告)日：2008-04-22
申请号：US11066243
申请日：2005-02-25
申请人： Yasunori Ogawa , Akitaka Yajima , Tomiyoshi Ushiyama
发明人： Yasunori Ogawa , Akitaka Yajima , Tomiyoshi Ushiyama
IPC分类号： G02B5/30 , G02B27/28
CPC分类号： G02B27/285 , G02B27/283 , H04N9/3105 , H04N9/3167
摘要： Two polarization conversion element arrays are disclosed. Each polarization conversion element array is composed of a plurality of polarization conversion elements for converting light incident upon the polarization conversion element array to a linearly polarized light beam with a predetermined polarization direction. The plurality of polarization conversion elements are disposed opposite to each other with a predetermined space provided between at about the center of the light-outgoing surface of a lens array in the direction of arrangement. Of the light beams (s-polarized+p-polarized light beams) gathered by the lens array, light beam that is not incident upon the polarization conversion element and passes through the predetermined space is a light beam including a predetermined polarized light beam (s-polarized light beam) that is primarily made to leave the array 320a and an ineffective polarized light beam (p-polarized light beam). Of the light passing through and leaving the space, the required polarized light beam alone can be made to leave as an effective light beam by providing a polarization plate or the like at the light-outgoing side of the space.
摘要翻译：公开了两个偏振转换元件阵列。每个偏振转换元件阵列由多个偏振转换元件组成，用于将入射到偏振转换元件阵列上的光转换成具有预定偏振方向的线偏振光束。多个偏振转换元件以设置在透镜阵列的光出射表面的中心附近的布置方向彼此相对地设置有预定的空间。在由透镜阵列收集的光束（s偏振+ p偏振光束）中，未入射到偏振转换元件并通过预定空间的光束是包括预定偏振光束（s 偏振光束），其主要是离开阵列320a和无效偏振光束（p偏振光束）。在通过和离开空间的光中，通过在空间的光出射侧提供偏振板等，可以使所需的偏振光束单独地留下作为有效的光束。

19. 发明授权

US07006004B2 Light-source lamp unit, light-source device and projection-type display apparatus 失效
标题翻译：光源灯单元，光源装置和投影型显示装置
公开(公告)号：US07006004B2
公开(公告)日：2006-02-28
申请号：US10683266
申请日：2003-10-14
申请人： Kiyoshi Miyashita , Kazuto Shinohara , Shinji Haba , Akitaka Yajima , Tomiyoshi Ushiyama
发明人： Kiyoshi Miyashita , Kazuto Shinohara , Shinji Haba , Akitaka Yajima , Tomiyoshi Ushiyama
IPC分类号： G08B5/36
CPC分类号： H04N9/315 , G03B21/2053 , G09G3/3406 , H04N9/3141 , H04N9/3155 , H05B37/03 , H05B41/36
摘要： A projector includes a first lens plate having a plurality of lenses, a second lens plate having a plurality of lenses, a light valve that modulates an output light beam from the second lens plate, and a light source apparatus. The light-source apparatus has a light-source lamp including an emission tube, a reflective mirror that reflects a divergent light beam from the light-source lamp to output a parallel light beam, the reflecting mirror having a reflective surface, a lamp housing that supports the reflective mirror, and an electrode lead. The electrode lead is led out of an end of the emission tube that is projected forward out of the reflective surface and is connected to an external connection terminal board which is positioned to a rear side of the reflective surface. The electrode lead is routed via the portion of the reflective mirror other than an effective area of the reflective mirror. A portion of the electrode lead positioned on the side of the reflective surface is arranged along a grove of a lens of the plurality of lenses of one of the first and second lens plate.
摘要翻译：投影机包括具有多个透镜的第一透镜板，具有多个透镜的第二透镜板，调制来自第二透镜板的输出光束的光阀和光源装置。光源装置具有包括发光管的光源灯，反射来自光源灯的发散光束输出平行光束的反射镜，反射镜具有反射面，灯罩支撑反射镜和电极引线。电极引线从发射管的从反射表面向前突出的端部引出，并连接到位于反射表面后侧的外部连接端子板。除了反射镜的有效区域之外，电极引线通过反射镜的部分布线。位于反射表面一侧的电极引线的一部分沿着第一和第二透镜板之一的多个透镜的透镜的凹槽布置。

20. 发明授权

US06979960B2 Circuit for driving light source, projector, method for controlling lighting of light source, and computer readable program for executing the same 有权
标题翻译：用于驱动光源的电路，投影仪，用于控制光源照明的方法，以及用于执行光源的计算机可读程序
公开(公告)号：US06979960B2
公开(公告)日：2005-12-27
申请号：US10715504
申请日：2003-11-19
申请人： Kazuo Okawa , Tomiyoshi Ushiyama
发明人： Kazuo Okawa , Tomiyoshi Ushiyama
IPC分类号： G02F1/13 , G02F1/133 , G02F1/13357 , G03B21/00 , G03B21/14 , H05B41/24 , H05B41/282 , H05B41/288 , H05B41/38 , H05B41/42 , G05F1/00
CPC分类号： H05B41/288 , H05B41/38 , H05B41/382
摘要： The invention provides a circuit to drive a light source capable of lengthening the life span of the light source and of coping with both a rated power mode and a power saving mode. A circuit to drive a light source includes a control device to drive the light source, which is composed of a discharge tube, and to switch the light source to a plurality of lighting modes including a rated power mode and a power saving mode. The control device includes a lighting mode setting unit to set the lighting mode to one of the plurality of lighting modes, and a rated power supplying unit to supply a rated power to the light source at the lighting starting time of the light source until a halogen cycle of the discharge tube is stabilized. The control device switches the light source to the lighting mode set by the lighting mode setting unit after the halogen cycle of the discharge tube is stabilized.
摘要翻译：本发明提供了一种驱动能够延长光源的使用寿命以及应付额定功率模式和省电模式的光源的电路。驱动光源的电路包括驱动由放电管构成的光源的控制装置，并且将光源切换成包括额定功率模式和省电模式的多个点亮模式。控制装置包括：点亮模式设定单元，用于将点亮模式设定为多个发光模式中的一个;以及额定供电单元，用于在光源的点亮开始时间向光源提供额定功率，直到卤素放电管的周期稳定。在放电管的卤素循环稳定后，控制装置将光源切换到由点亮模式设定单元设定的点亮模式。

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