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31.发明授权公开(公告)号：US06394607B1
公开(公告)日：2002-05-28
申请号：US08945803
申请日：1997-11-12
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。
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公开(公告)号：US06375328B2
公开(公告)日：2002-04-23
申请号：US09230084
申请日：1999-01-19
IPC分类号： G03B2126
CPC分类号： H04N9/3105 , G03B21/006 , H04N9/3141
摘要： Liquid crystal modulation elements are arranged so that light outgoing surfaces thereof face light incident surfaces of a color synthesizing prism. Transparent plates are bonded to the light outgoing surfaces of the liquid crystal modulation elements. For this reason, adhesion of dust to the light outgoing surfaces of the liquid crystal modulation elements can be prevented. Further, it is possible to prevent light reflection at the interface surface between the light outgoing surfaces and air due to the difference in refractive index therebetween. This allows a high-quality image to be projected without deteriorating the switching characteristic of the liquid crystal modulation elements while preventing dust from adhering to the light outgoing surfaces of the liquid crystal modulation elements.
摘要翻译： 液晶调制元件布置成使得其光出射表面面对着彩色合成棱镜的光入射表面。 透明板结合到液晶调制元件的光出射表面。 因此，可以防止灰尘附着在液晶调制元件的光出射面上。 此外，可以防止由于它们之间的折射率差而在光出射表面和空气之间的界面处的光反射。 这允许投影高质量的图像，同时不会降低液晶调制元件的开关特性，同时防止灰尘粘附到液晶调制元件的光出射表面。
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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。
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公开(公告)号：US06247817B1
公开(公告)日：2001-06-19
申请号：US09501656
申请日：2000-02-10
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。
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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。
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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
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.
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公开(公告)号：US20130170028A1
公开(公告)日：2013-07-04
申请号：US13620064
申请日：2012-09-14
申请人： Osamu Arakawa , Hiroyuki Shindo , Toshiaki Hashizume , Tatsuo Uchida , Yoshito Suzuki , Baku Katagiri
发明人： Osamu Arakawa , Hiroyuki Shindo , Toshiaki Hashizume , Tatsuo Uchida , Yoshito Suzuki , Baku Katagiri
IPC分类号： G03B21/60
摘要： A screen in which observation distance may be adjusted while maintaining image brightness and a projection system using the screen. In a light control layer of a screen, a first angle region that determines a diffusion distribution of a reflected light is different according to the screen position in a control direction in which light diffusion control is performed. Accordingly, a diffusion distribution of image light emitted from a screen surface is adjusted to be tilted downward by an upper end and upward by a lower end according to the screen position. Thus, for example, a size of a diffused angle range is maintained to be 30°, and a direction in which the image light is diffusion-emitted corresponds to an assumed position of an observer. The projection image can be observed while maintaining brightness of an image and the observation distance can be adjusted to be short.
摘要翻译： 可以在保持图像亮度的同时调整观察距离的屏幕和使用屏幕的投影系统。 在屏幕的光控制层中，确定反射光的扩散分布的第一角度区域根据执行光漫射控制的控制方向上的屏幕位置而不同。 因此，根据屏幕位置，从屏幕表面发射的图像光的扩散分布被调整为向上倾斜向下并且向下倾斜。 因此，例如，扩散角范围的大小保持为30°，并且图像光被扩散发射的方向对应于观察者的假定位置。 可以在保持图像的亮度的同时观察投影图像，并且可以将观察距离调整为短。
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38.再颁专利公开(公告)号：USRE42515E1
公开(公告)日：2011-07-05
申请号：US12831624
申请日：2010-07-07
申请人： Toshiaki Hashizume
发明人： Toshiaki Hashizume
CPC分类号： H04N9/315 , C03B23/07 , G03B21/2066
摘要： A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror including a reflective surface that reflects light from the light-emitting portion in a predetermined direction, includes: a first step of forming a tube by heating a tube including a material of the reflective mirror, thereafter putting the tube in a form block, applying internal pressure with an inert gas to cause a center portion of the tube to expand, so that part of an inner surface of the expanded center portion includes a shape corresponding to the reflective surface of the reflective mirror; a second step of cutting the tube at the center portion to form a reflective mirror member; and a third step of forming a reflective layer on an inner surface of the reflective mirror member.
摘要翻译： 一种用于制造反射镜的反射镜制造方法，包括：包括发光部分的电弧管和包括反射表面的反射镜，所述反射镜包括反射表面，所述反射表面沿预定方向反射来自所述发光部分的光，所述反射镜制造方法包括： 通过加热包括反射镜的材料的管形成管的第一步骤，然后将管置于模块中，用惰性气体施加内部压力以使管的中心部分膨胀，使得部分 扩张中心部分的内表面包括与反射镜的反射表面对应的形状; 第二步骤，在中心部分切割管以形成反射镜构件; 以及在反射镜构件的内表面上形成反射层的第三步骤。
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39.再颁专利公开(公告)号：USRE41874E1
公开(公告)日：2010-10-26
申请号：US12318817
申请日：2009-01-08
申请人： Toshiaki Hashizume
发明人： Toshiaki Hashizume
CPC分类号： H04N9/315 , C03B23/07 , G03B21/2066
摘要： A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror including a reflective surface that reflects light from the light-emitting portion in a predetermined direction, includes: a first step of forming a tube by heating a tube including a material of the reflective mirror, thereafter putting the tube in a form block, applying internal pressure with an inert gas to cause a center portion of the tube to expand, so that part of an inner surface of the expanded center portion includes a shape corresponding to the reflective surface of the reflective mirror; a second step of cutting the tube at the center portion to form a reflective mirror member; and a third step of forming a reflective layer on an inner surface of the reflective mirror member.
摘要翻译： 一种用于制造反射镜的反射镜制造方法，包括：包括发光部分的电弧管和包括反射表面的反射镜，所述反射镜包括反射表面，所述反射表面沿预定方向反射来自所述发光部分的光，所述反射镜制造方法包括： 通过加热包括反射镜的材料的管形成管的第一步骤，然后将管置于模块中，用惰性气体施加内部压力以使管的中心部分膨胀，使得部分 扩张中心部分的内表面包括与反射镜的反射表面对应的形状; 第二步骤，在中心部分切割管以形成反射镜构件; 以及在反射镜构件的内表面上形成反射层的第三步骤。
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公开(公告)号：US07559675B2
公开(公告)日：2009-07-14
申请号：US11702071
申请日：2007-02-05
IPC分类号： F21V7/20
CPC分类号： H01J61/86 , G03B21/2026 , G03B21/2046 , H01J61/025
摘要： A light source device, includes: a light source lamp that has a light emitting tube and a pair of electrodes, the light emitting tube including a discharge space; the pair of electrodes being disposed in the discharge space of the light emitting tube; a reflector in a substantially C-shape in cross section that reflects a light beam irradiated from the light source lamp; and an unused-light reflecting member being disposed on a light irradiation front side of the reflector and including an unused-light reflecting surface, the unused-light reflecting surface reflecting unused light irradiated outside the reflector of the light beam irradiated from the light source lamp, the unused-light reflecting surface being an ellipsoidal surface that has a first focal position on a light emission center of the light source lamp and a second focal position onto which the ellipsoidal surface reflects and converges the unused light to be guided to the outside of the light source device.
摘要翻译： 一种光源装置，包括：具有发光管和一对电极的光源灯，所述发光管包括放电空间; 所述一对电极设置在所述发光管的放电空间中; 反射从光源灯照射的光束的大致C形截面的反射器; 以及未使用光反射部件，其设置在所述反射体的照射前侧，并且包括未使用光反射面，所述未使用光反射面反射照射在从所述光源灯照射的光束的反射器的外侧的未使用光 所述未使用光反射面为椭圆面，所述椭圆面在所述光源灯的发光中心具有第一焦点位置，在所述第二焦点位置上，所述椭圆面反射和会聚未被使用的被引导光， 光源装置。
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