公开(公告)号：USRE39859E1

公开(公告)日：2007-09-25

申请号：US10284504

申请日：1997-12-08

申请人： Tomiyoshi Ushiyama ,  Akitaka Yajima ,  Yasunori Ogawa

发明人： Tomiyoshi Ushiyama ,  Akitaka Yajima ,  Yasunori Ogawa

IPC分类号： G02B27/10 ,  G02B27/14 ,  G02B5/04 ,  G03B21/00

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： 二向色棱镜中的四个矩形棱镜中的至少一个被制成比其他矩形棱镜长。 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。

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。

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。

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。

公开(公告)号：US5978136A

公开(公告)日：1999-11-02

申请号：US992012

申请日：1997-12-17

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 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  H04N9/31

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。

公开(公告)号：USRE39702E1

公开(公告)日：2007-06-26

申请号：US10014937

申请日：2001-12-14

申请人： Toshiaki Hashizume ,  Hisashi Iechika ,  Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima

发明人： Toshiaki Hashizume ,  Hisashi Iechika ,  Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima

IPC分类号： G03B21/14

CPC分类号： G02B27/1026 ,  G02B27/1046 ,  G02B27/1073 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B27/285 ,  G02F1/13394 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/317

摘要： An output light from an a light source lamp unit 8 in a projection-type display apparatus projector illuminates liquid-crystal light valves 925R, 925G and 925B for three colors via an integrator optical system 923. A superimposing lens 930 that is a component of the integrator optical system 923 as a uniform illumination optical system is arranged such that the mounting position of the superimposing lens 930 is fine-adjustable in a direction orthogonal to an optical axis 1a. By fine-adjusting the mounting position of the superimposing lens 930, the position of an illumination area B is adjusted such that the illumination area includes the image forming area A of the liquid-crystal light valve. It is not necessary to assure a wide margin around the image forming area A to cover the offset of the position of the illumination area B. As a result, the utilization of illumination light is heightened and a bright projected image results.

摘要翻译： <？delete-start id =“DEL-S-00001”date =“20070626”？> <？delete-end id =“DEL-S-00001”？> <？insert-start id =“ INS-S-00001“date =”20070626“？> a <？insert-end id =”INS-S-00001“？>光源灯单元8在<？delete-start id =”DEL-S-00002 “date =”20070626“？>投影型显示装置<？delete-end id =”DEL-S-00002“？> <？insert-start id =”INS-S-00002“date =”20070626“？> 投影仪<？insert-end id =“INS-S-00002”？>通过积分光学系统923照亮三色的液晶光阀925R，925G和925B。作为 作为均匀照明光学系统的积分光学系统923被布置成使得重叠透镜930的安装位置在与光轴1a正交的方向上是微调的。 通过微调重叠透镜930的安装位置，调节照明区域B的位置，使得照明区域包括液晶光阀的图像形成区域A. 不需要在图像形成区域A周围保证大的范围来覆盖照明区域B的位置的偏移。结果，提高了照明光的利用并且产生了明亮的投影图像。

公开(公告)号：US06315417B1

公开(公告)日：2001-11-13

申请号：US09319534

申请日：1999-06-08

申请人： Akitaka Yajima ,  Yasunori Ogawa ,  Jiro Ito

发明人： Akitaka Yajima ,  Yasunori Ogawa ,  Jiro Ito

IPC分类号： G03B2114

CPC分类号： H04N9/3105 ,  G02B27/0927 ,  G02B27/0961 ,  H04N5/7441

摘要： In a projection display device 1, emergent light from an illumination optical system 80 is diffused by microlenses 101 provided in a liquid crystal light valve 100R. Emergent light from the liquid crystal light valve 100R diffused by these microlenses 101 is efficiently drawn into a projection optical system 60 whose f-number is set to be less than the f-number of the illumination optical system 80. As a result, it is possible to prevent light utilization efficiency from being deteriorated due to light diffusion by the microlenses 101. Consequently, it is possible to obtain a bright projection image in a projection display device in which a liquid crystal light valve having microlenses is incorporated.

摘要翻译： 在投影型显示装置1中，来自照明光学系统80的出射光被设置在液晶光阀100R中的微透镜101扩散。 由这些微透镜101扩散的来自液晶光阀100R的突发光被有效地拉入投影光学系统60，投影光学系统60的f值设定为小于照明光学系统80的f数。结果是 可以防止光利用效率由于微透镜101的光扩散而劣化。因此，可以在其中结合有具有微透镜的液晶光阀的投影显示装置中获得亮度投影图像。

公开(公告)号：US06278500B1

公开(公告)日：2001-08-21

申请号：US09413194

申请日：1999-10-05

申请人： Yasunori Ogawa ,  Akitaka Yajima ,  Takeshi Takizawa

发明人： Yasunori Ogawa ,  Akitaka Yajima ,  Takeshi Takizawa

IPC分类号： G02F11335

CPC分类号： G02B27/0961 ,  G02B3/0056 ,  G02B3/0062 ,  G02B27/14 ,  H04N9/3105

摘要： The invention prevents deterioration of the image quality caused by dust adhering to the surface of a liquid crystal device. The invention is a liquid crystal device that includes an emergent-side substrate section, an incident-side substrate section disposed opposing the emergent-side substrate section, and a liquid crystal layer sandwiched between the emergent-side substrate section and the incident-side substrate section. The incident-side substrate section includes an incident-side substrate, an electrode that drives the liquid crystal layer formed on the incident-side substrate, and a micro-lens array disposed toward an incident side of the liquid crystal device relative to the incident-side substrate and having a plurality of micro-lenses that condense light beams onto a plurality of pixels. A thickness Ti of the incident side-substrate section along a direction of travel of a light beam is larger than a thickness To of the emergent side-substrate section along the direction of travel of the light beam.

摘要翻译： 本发明可防止由粘附在液晶装置的表面上的灰尘引起的图像质量的劣化。 本发明是一种液晶显示装置，其特征在于，具有：突出侧基板部，与所述突出侧基板部相对配置的入射侧基板部以及夹在所述突出侧基板部和所述入射侧基板之间的液晶层 部分。 入射侧基板部分包括入射侧基板，驱动形成在入射侧基板上的液晶层的电极和相对于入射侧基板朝向液晶装置的入射侧设置的微透镜阵列， 并且具有将光束会聚到多个像素上的多个微透镜。 沿着光束的行进方向的入射侧基板部分的厚度Ti大于沿着光束的行进方向的出射侧基板部分的厚度To。

公开(公告)号：USRE39040E1

公开(公告)日：2006-03-28

申请号：US10247837

申请日：2002-09-20

申请人： Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima ,  Toshiaki Hashizume ,  Hisashi Iechika

发明人： Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima ,  Toshiaki Hashizume ,  Hisashi Iechika

IPC分类号： G03B21/14

CPC分类号： G02B3/0056 ,  G02B3/0062 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B27/285 ,  G02F1/09 ,  G02F1/13394 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3167 ,  H04N9/317

摘要： A projection-type display apparatus in accordance with the invention reduces the margin formed around the image forming range of the light valves, and forms a bright projected image. Emitted light from a light source lamp unit of a projection-type display apparatus illuminates liquid crystal light valves of each color via an integrator optical system. First and second lens plates of an integrator optical system that serves as a uniform illuminating optical system are disposed such that the attachment position thereof is capable of fine adjustment in a direction vertical to the optical axis. By performing fine adjustment of the attachment position of these, the forming position of the illumination range B can be adjusted to include the image forming range A of the liquid crystal light valves. Accordingly, there is no need to provide a wide margin around the image forming range A, taking shifting of the forming position of the illumination range B into consideration. Thus, efficient usage of the illumination light can be increased, thereby improving the brightness of the projected image.

公开(公告)号：US06247817B1

公开(公告)日：2001-06-19

申请号：US09501656

申请日：2000-02-10

申请人： Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima ,  Toshiaki Hashizume ,  Hisashi Iechika

发明人： Yasunori Ogawa ,  Shinji Haba ,  Akitaka Yajima ,  Toshiaki Hashizume ,  Hisashi Iechika

IPC分类号： G03B2114

CPC分类号： G02B3/0056 ,  G02B3/0062 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B27/285 ,  G02F1/09 ,  G02F1/13394 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3167 ,  H04N9/317

摘要： A projection-type display apparatus in accordance with the invention reduces the margin formed around the image forming range of the light valves, and forms a bright projected image. Emitted light from a light source lamp unit of a projection-type display apparatus illuminates liquid crystal light valves of each color via an integrator optical system. First and second lens plates of an integrator optical system that serves as a uniform illuminating optical system are disposed such that the attachment position thereof is capable of fine adjustment in a direction vertical to the optical axis. By performing fine adjustment of the attachment position of these, the forming position of the illumination range B can be adjusted to include the image forming range A of the liquid crystal light valves. Accordingly, there is no need to provide a wide margin around the image forming range A, taking shifting of the forming position of the illumination range B into consideration. Thus, efficient usage of the illumination light can be increased, thereby improving the brightness of the projected image.

摘要翻译： 根据本发明的投影型显示装置减少了围绕光阀的图像形成范围形成的边缘，并且形成明亮的投影图像。 投影型显示装置的光源灯单元的发光通过积分光学系统照射各颜色的液晶光阀。 用作均匀照明光学系统的积分器光学系统的第一和第二透镜板被布置成使得其安装位置能够在垂直于光轴的方向上进行微调。 通过对其的安装位置进行微调，可以将照明范围B的形成位置调整为包括液晶光阀的图像形成范围A. 因此，考虑到照明范围B的形成位置的移动，不需要在成像范围A周围提供较大的余量。 因此，可以提高照明光的有效使用，从而提高投影图像的亮度。