公开(公告)号：US06394607B1

公开(公告)日：2002-05-28

申请号：US08945803

申请日：1997-11-12

申请人： Toshiaki Hashizume ,  Yoshitaka Itoh ,  Akitaka Yajima

发明人： Toshiaki Hashizume ,  Yoshitaka Itoh ,  Akitaka Yajima

IPC分类号： G03B2100

CPC分类号： G02B27/285 ,  G02B5/3025 ,  G02B5/3041 ,  G02B27/283 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3167

摘要： The invention provides a plate-shaped polarized light separation device that has a repetitive structure of polarized light separation film surfaces and reflective film surfaces arranged alternately at a fine pitch, along with a projection display apparatus that uses this polarized light separation device. In the process of manufacturing the polarized light separation device, first a glass block is formed by alternately pasting together plate glass with a polarized light separation film made up of a multi-layer thin film of inorganic material upon its surface and plate glass with a reflecting film upon its surface, and this glass block is cut obliquely to the pasted surfaces. A projection that is usable at the time of the positioning of the polarization beam splitter may be provided on at least one side of this plate-shaped block that is thus cut out. By providing a &lgr;/2 phase plate on portions of the light exit surface of this polarized light separation device, one obtains a polarized light separation device that takes light from a light source and emits it as a light flux having only one direction of polarization, either S-polarized light or P-polarized light. Such a polarized light separation device can be used in a projection display apparatus.

摘要翻译： 本发明提供了一种板状偏振光分离装置，其具有与使用该偏振光分离装置的投影显示装置一起以极细间隔交替设置的偏振光分离膜表面和反射膜表面的重复结构。 在制造偏振光分离装置的过程中，首先通过将平板玻璃与由其表面的无机材料的多层薄膜构成的偏振光分离膜和平板玻璃交替地粘贴在一起而形成玻璃块， 其表面上的薄膜，并且该玻璃块被倾斜地切割成粘贴的表面。 在偏振分束器的定位时可以使用的突起可以设置在被切出的该板状块的至少一侧上。 通过在该偏振光分离装置的光出射面的部分上设置羔羊/ 2相位板，得到从光源照射光并将其作为仅具有一个偏振方向的光束发射的偏振光分离装置， S偏振光或P偏振光。 这种偏振光分离装置可以用在投影显示装置中。

公开(公告)号：US06342971B1

公开(公告)日：2002-01-29

申请号：US09624995

申请日：2000-07-25

申请人： Toshiaki Hashizume ,  Masami Murata

发明人： Toshiaki Hashizume ,  Masami Murata

IPC分类号： G02B2710

CPC分类号： G02B27/1073 ,  G02B5/04 ,  G02B27/1046 ,  G02B27/145 ,  G02B27/149 ,  G03B21/14 ,  G03B33/12 ,  Y10S359/90

摘要： A red-reflecting film and a blue-reflecting film are formed in a substantially X shape on joint surfaces defined by the respective side faces of four columnar prisms or right-angle prisms. The red-reflecting film is continuously formed without separating at an intersection of the two reflecting films. The blue-reflecting film is, on the other hand, divided into two pieces by the red-reflecting film and an adhesive. It is preferable that that four columnar prisms are obtained from one block of sheet glass. This arrangement ensures an improvement in properties of a resulting light-selective prism.

摘要翻译： 红色反射膜和蓝色反射膜在由四个柱状棱镜或直角棱镜的各个侧面限定的接合面上形成为大致X形。 连续形成红色反射膜而不在两个反射膜的交叉处分离。 另一方面，蓝色反射膜由红色反射膜和粘合剂分成两部分。 优选地，从一块平板玻璃获得四个柱状棱镜。 这种布置确保了所得光选择性棱镜的性能的改善。

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。

公开(公告)号：US06172815B2

公开(公告)日：2001-01-09

申请号：US09474087

申请日：1999-12-29

申请人： Toshiaki Hashizume ,  Akitaka Yajima

发明人： Toshiaki Hashizume ,  Akitaka Yajima

IPC分类号： G02B2712

CPC分类号： G02B27/1026 ,  G02B5/04 ,  G02B27/1046 ,  G02B27/1073 ,  G02B27/145 ,  G02B27/149 ,  H04N9/3105

摘要： The invention provides a dichroic prism capable of reducing displacements of projection pixels of colors caused by chromatic aberration of magnification. A dichroic prism is formed in the shape of a quadrangular prism as a whole by joining four rectangular prisms together. A red reflecting dichroic plane and a blue reflecting dichroic plane intersect to form substantially an X shape along junction surfaces of the prisms. The red reflecting dichroic plane is convex-shaped by partly changing the thickness of an adhesive layer for connecting the rectangular prisms together. Accordingly, since a red beam can be guided to a projection optical system while being enlarged, it is possible to reduce a projection image of the red beam to be projected onto a projection plane via the projection optical system. This makes it possible to reduce relative displacements of projection pixels of color beams caused by chromatic aberration of magnification.

摘要翻译： 本发明提供一种能够减少由倍率色差引起的颜色的投影像素位移的二向色棱镜。 通过将四个矩形棱镜连接在一起，二向色棱镜整体形成为四边形棱镜的形状。 红色反射二向色平面和蓝色反射二向色平面相交，以沿着棱镜的连接表面形成基本上X的形状。 红色反射二向色平面通过部分地改变用于将矩形棱镜连接在一起的粘合剂层的厚度而呈凸形。 因此，由于红色光束可以在被放大的同时被引导到投影光学系统，所以可以通过投影光学系统减少要投影到投影平面上的红色光束的投影图像。 这使得可以减小由倍率色像差引起的彩色光束的投影像素的相对位移。

公开(公告)号：US08714747B2

公开(公告)日：2014-05-06

申请号：US13553250

申请日：2012-07-19

申请人： Koichi Akiyama ,  Toshiaki Hashizume

发明人： Koichi Akiyama ,  Toshiaki Hashizume

IPC分类号： G03B21/00

CPC分类号： G02B27/102 ,  G02B27/141 ,  G03B21/2066 ,  G03B33/04 ,  G03B33/06 ,  H04N9/3108

摘要： A projector includes a light source, a first light separation optical system adapted to separate light emitted from the light source into first light and second light, a second light separation optical system adapted to separate the first light into third light and fourth light, separate the second light into fifth light and sixth light, and emit the third light, the fourth light, the fifth light, and the six light in directions intersecting with a plane including a light axis of the light emitted from the light source and a light axis of the first light, and a light modulation element which the third light, the fourth light, the fifth light, and the sixth light enter.

摘要翻译： 投影仪包括光源，适于将从光源发射的光分离成第一光和第二光的第一光分离光学系统，适于将第一光分离成第三光和第四光的第二光分离光学系统， 将第二光转换成第五光和第六光，并且在与包括从光源发射的光的光轴相交的平面的方向上发射第三光，第四光，第五光和六光，并且光轴 第一光和第三光，第四光，第五光和第六光进入的光调制元件。

公开(公告)号：US08023186B2

公开(公告)日：2011-09-20

申请号：US12627738

申请日：2009-11-30

申请人： Ryoji Katsuma ,  Akira Shinbo ,  Toshiaki Hashizume

发明人： Ryoji Katsuma ,  Akira Shinbo ,  Toshiaki Hashizume

IPC分类号： G03B21/60

CPC分类号： G03B21/60

摘要： A screen that reflects light from a projection apparatus to present a projected image includes: a screen substrate; and a plurality of spherical microlenses disposed on the front side of the screen substrate, wherein the microlenses are arranged along a predetermined first direction on the screen substrate to form lens rows, and adjacent microlenses in each of the lens rows have different radii of curvature.

摘要翻译： 反射来自投影装置的光以呈现投影图像的屏幕包括：屏幕基板; 以及设置在所述荧光屏基板的前侧的多个球状微透镜，其中，所述微透镜沿着所述屏幕基板上的预定的第一方向布置以形成透镜行，并且在每个所述透镜行中的相邻微透镜具有不同的曲率半径。

公开(公告)号：US07593076B2

公开(公告)日：2009-09-22

申请号：US11427566

申请日：2006-06-29

申请人： Hiroaki Yanai ,  Toshiaki Hashizume

发明人： Hiroaki Yanai ,  Toshiaki Hashizume

IPC分类号： G02F1/1335

CPC分类号： G02B5/3033 ,  G02B1/02

摘要： An optical device includes a polarizer having a polarizing layer, a first light-transmissive substrate bonded on one surface of the polarizing layer of the polarizer, and a second light-transmissive substrate bonded on the other surface of the polarizing layer of the polarizer. The first light-transmissive substrate and the second light-transmissive substrate are made of an inorganic material.

摘要翻译： 光学装置包括具有偏振层的偏振器，粘合在偏振片的偏振层的一个表面上的第一透光性基板和接合在偏振片的偏振层的另一个面上的第二透光性基板。 第一透光性基板和第二透光性基板由无机材料构成。

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：US6109751A

公开(公告)日：2000-08-29

申请号：US091830

申请日：1998-06-26

申请人： Toshiaki Hashizume ,  Yoshitaka Itoh

发明人： Toshiaki Hashizume ,  Yoshitaka Itoh

IPC分类号： G02B3/00 ,  G02B27/14 ,  G02B27/28 ,  G03B21/20 ,  G03B33/12 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC分类号： G03B33/12 ,  G02B27/1046 ,  G02B27/141 ,  G02B27/143 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B3/0062 ,  G02F1/13362 ,  G03B21/2073 ,  H04N9/3105 ,  H04N9/315 ,  G02B3/0043 ,  G02B3/0056 ,  G02F1/133605 ,  G02F2001/133607 ,  H04N5/74 ,  H04N5/7441

摘要： The structure of the present invention makes dark lines due to a central axis of a cross dichroic prism sufficiently inconspicuous. A stepped reflecting mirror is interposed between a second lens array and a condenser. The stepped reflecting mirror has the function of deviating the optical path of part of the partial light fluxes among a plurality of partial light fluxes passing through a plurality of small lenses aligned on the same column in lens arrays from the optical path of the other partial light fluxes. A planar transparent member may be used in place of the stepped reflecting mirror for the purpose of deviating the optical path. Another technique shifts part of rows in the lens arrays and to deviate the optical path of part of the partial light fluxes.

摘要翻译： PCT No.PCT / JP97 / 03900 Sec。 371日期：1998年6月26日 102（e）日期1998年6月26日PCT 1997年10月27日PCT公布。 出版物WO98 / 1921100 日期1998年5月7日本发明的结构使得由于十字分色棱镜的中心轴足够不明显的暗线。 阶梯式反射镜插入在第二透镜阵列和冷凝器之间。 阶梯式反射镜具有使通过在透镜阵列中的同一列上排列的多个小透镜的多个部分光束中的部分光束的一部分的光路偏离另一部分光的光路的功能 助焊剂 为了偏离光路，可以使用平面透明构件来代替阶梯式反射镜。 另一种技术使透镜阵列中的行的一部分移动并偏离部分光通量的光路。

公开(公告)号：US6092901A

公开(公告)日：2000-07-25

申请号：US203343

申请日：1998-12-02

申请人： Toshiaki Hashizume ,  Tomiyoshi Ushiyama ,  Hisashi Iechika

发明人： Toshiaki Hashizume ,  Tomiyoshi Ushiyama ,  Hisashi Iechika

IPC分类号： G02F1/13 ,  G02B27/28 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  H04N9/31 ,  F21V9/14 ,  G02B5/30

CPC分类号： H04N9/3105 ,  G02B27/283 ,  G02B27/285 ,  H04N9/3167

摘要： A polarizing illumination device and a projection display device using the polarizing illumination device improve light utilization efficiency. Polarizing conversion elements are placed so that one of polarizing separation films of a first polarizing conversion element and one of polarizing separation films of a second polarizing conversion element are close to each other and so that effective incident areas and ineffective incident areas are alternately arranged in the x direction. The width WP in the x direction of the effective incident areas and the ineffective incident areas is set to be larger than half of the width WL in the x direction of small lenses in a second lens array. The optical axes of each of small lenses are offset from the lens centers thereof so that partial beams emerging from the small lenses in a first lens array optimally enter the effective incident areas where the partial beams should enter.

摘要翻译： 使用偏振照明装置的偏振照明装置和投影显示装置提高光的利用效率。 放置偏光转换元件使得第一偏振转换元件的偏振分离膜和第二偏振转换元件的偏振分离膜中的一个偏振分离膜之一彼此接近，使得有效入射区域和无效入射区域交替排列在 x方向。 有效入射区域的x方向上的宽度WP和无效入射区域被设定为大于第二透镜阵列中的小透镜的x方向上的宽度WL的一半。 每个小透镜的光轴偏离其透镜中心，使得在第一透镜阵列中从小透镜出射的部分光束最佳地进入部分光束应进入的有效入射区域。