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    • 52. 发明授权
    • Projection-type display apparatus
    • 投影型显示装置
    • US5743610A
    • 1998-04-28
    • US697707
    • 1996-08-27
    • Akitaka YajimaMotoyuki FujimoriMutsuya FuruhataTomiyoshi UshiyamaTerunaga KoideToshiaki HashizumeKiyoshi MiyashitaHiroshi HarimaKeijiro Naito
    • Akitaka YajimaMotoyuki FujimoriMutsuya FuruhataTomiyoshi UshiyamaTerunaga KoideToshiaki HashizumeKiyoshi MiyashitaHiroshi HarimaKeijiro Naito
    • G02B27/14G03B21/14H04N5/74H04N9/31
    • G03B33/12G02B27/1046G02B27/1073G02B27/145G02B27/149H04N9/3105H04N9/312H04N9/3141H04N9/3144H04N9/317H04N9/3182
    • 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.
    • 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。
    • 55. 再颁专利
    • Projector
    • 投影机
    • USRE42740E1
    • 2011-09-27
    • US11802079
    • 2007-05-18
    • Motoyuki FujimoriToshiaki HashizumeKenji IguchiKiichi Okumura
    • Motoyuki FujimoriToshiaki HashizumeKenji IguchiKiichi Okumura
    • G03B21/14
    • H04N9/3105H04N9/3141H04N9/3144H04N9/317
    • A projector for separating white light into three primary colors, forming images with liquid crystal light valves, mixing these images, and projecting an enlarged picture of the mixed images with a projection lens. The projector includes an optical unit having a light source, a plurality of dichroic mirrors for separating the white light into blue, green, and red beams, respective liquid crystal light valves forming images of the blue, green, and red colors. The optical unit has a chassis with a rigid center portion at which one of the liquid crystal light valves is mounted, the other two light valves being mounted symmetrically with respect thereto. An adjustment mechanism is provided for matching pixels of the second and third color valves with those of the first color valve. The red color liquid crystal light valve is disposed midway between the blue and green color liquid crystal light valves and a cooling fan is disposed below the red color liquid crystal light valve.
    • 一种用于将白光分为三原色的投影仪,用液晶光阀形成图像,混合这些图像,并用投影透镜投影混合图像的放大图像。 投影仪包括具有光源的光学单元,用于将白色光分离为蓝色,绿色和红色光束的多个分色镜,形成蓝色,绿色和红色图像的各自的液晶光阀。 该光学单元具有一个具有刚性中心部分的底座,在其中安装一个液晶光阀,另外两个光阀相对于其对称安装。 提供了一种用于将第二和第三色阀的像素与第一色阀的像素相匹配的调节机构。 红色液晶光阀位于蓝色和绿色液晶光阀之间的中间,冷却风扇位于红色液晶光阀的下方。
    • 58. 再颁专利
    • Projector
    • 投影机
    • USRE39702E1
    • 2007-06-26
    • US10014937
    • 2001-12-14
    • Toshiaki HashizumeHisashi IechikaYasunori OgawaShinji HabaAkitaka Yajima
    • Toshiaki HashizumeHisashi IechikaYasunori OgawaShinji HabaAkitaka Yajima
    • G03B21/14
    • G02B27/1026G02B27/1046G02B27/1073G02B27/145G02B27/149G02B27/283G02B27/285G02F1/13394H04N5/7441H04N9/3105H04N9/317
    • 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.
    • <?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。
    • 59. 发明申请
    • Optical modulator holder, optical device, and projector
    • 光学调制器支架,光学设备和投影机
    • US20050213228A1
    • 2005-09-29
    • US11084110
    • 2005-03-21
    • Motoyuki FujimoriToshiaki HashizumeMasami Murata
    • Motoyuki FujimoriToshiaki HashizumeMasami Murata
    • G02F1/13G02F1/1333G02F1/1335G02F1/1368G03B21/00G03B21/16H04N9/31G02B7/02
    • H04N9/3144G03B21/16H04N9/3105
    • An optical modulator holder (4402) has an optical modulator holding unit (4405) having a substantially rectangular U-shaped cross-section and made of heat-conductive material, a plate-like member (4406) made of heat-conductive material, and an optical modulator cooling unit (4407) constituted by a hollow member which is capable of enclosing cooling fluid inside and is made of heat-conductive material. Of the optical modulator holding unit (4405) and the plate-like member (4406), peripheries of openings (4405A1, 4406A) each contact heat-transferably a liquid crystal panel (441). The liquid crystal panel (441) is held inside the rectangular U-shape of the optical modulator holding unit (4405). The optical modulator cooling unit (4407) is formed like a ring whose inner side surface heat-transferably contacts the liquid crystal panel (441), and has an inlet port (4407D) and outlet port (4407E).
    • 光调制器支架(4402)具有由导热材料构成的大致矩形的U字形横截面的光调制器保持单元(4405),由导热材料制成的板状构件(4406),以及 光调制器冷却单元(4407),其由能够将冷却流体包围并由导热材料制成的中空构件构成。 在光学调制器保持单元(4405)和板状构件(4406)中,开口的周边(4405A 1,4406A)每个接触可热传递液晶面板(441)。 液晶面板(441)保持在光调制器保持单元(4405)的矩形U形的内部。 光调制器冷却单元4407形成为内侧表面与液晶面板(441)可热传递接触并具有入口端口(4407D)和出口端口4407E的环。
    • 60. 发明授权
    • Projector
    • 投影机
    • US06935753B2
    • 2005-08-30
    • US10399677
    • 2002-01-15
    • Takeshi TakezawaToshiaki HashizumeMotoyuki FujimoriYoshiyuki Yanagisawa
    • Takeshi TakezawaToshiaki HashizumeMotoyuki FujimoriYoshiyuki Yanagisawa
    • G02B7/00G02B27/28G03B21/14G03B21/16G03B21/20H04N9/31G03B21/00
    • G02B7/008G02B27/283G03B21/145G03B21/16G03B21/2073H04N9/3105H04N9/3144
    • This invention provides a technique of reducing temperature rise due to heat generation of polarization control elements. A projector includes: an illumination optical system; an electro-optical device for modulating light from the illumination optical system in response to image information; a projection optical system for projecting modulated light obtained with the electro-optical device and a base frame, formed using material including metal material, for mounting a plurality of optical components arranged on an optical path from the illumination optical system to the projection optical system. At least one of the plurality of optical components is a polarization control component that includes: a polarization control element including organic material for the controlling polarization state of light exiting from the polarization control element; and a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·K), to which the polarization control element is stuck. The light-transmissive member and the base frame are thermally coupled.
    • 本发明提供一种降低由于偏振控制元件的发热引起的温升的技术。 投影机包括:照明光学系统; 用于响应于图像信息调制来自照明光学系统的光的电光装置; 用于投射由电光装置获得的调制光的投影光学系统和使用包括金属材料的材料形成的基架,用于安装布置在从照明光学系统到投影光学系统的光路上的多个光学部件。 多个光学部件中的至少一个是偏振控制部件,其包括:偏振控制元件,包括用于控制从偏振控制元件出射的光的偏振状态的有机材料; 以及具有至少约0.8W /(m.K)的热导率的透光构件,偏振控制元件被卡住。 透光构件和基架被热耦合。