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1. 发明授权

US5490006A Liquid crystal light valve apparatus with a pair of non-parallel phase difference plates 失效
标题翻译：具有一对非平行相位差板的液晶光阀装置
公开(公告)号：US5490006A
公开(公告)日：1996-02-06
申请号：US230036
申请日：1994-04-19
申请人： Yoshihiro Masumoto , Hideki Ohmae
发明人： Yoshihiro Masumoto , Hideki Ohmae
IPC分类号： G02F1/13 , G02F1/133 , G02F1/1335 , G02F1/13357 , G02F1/13363 , H04N5/74
CPC分类号： H04N5/7441 , G02F1/133632
摘要： In a liquid crystal light valve apparatus comprising an incident side polarizing plate, a twisted nematic liquid crystal cell of active matrix type and an outgoing side polarizing plate, two phase difference plates are provided between the incident side polarizing plate and the liquid crystal cell. Optical axes of both the phase difference plates are perpendicular with each other, and one of them is slanted by an angle, and thereby, a phase difference which is caused by the liquid crystal cell is compensated by the phase difference caused by two phase difference plates.
摘要翻译：在包括入射侧偏振片，有源矩阵型扭曲向列型液晶单元和出射侧偏振片的液晶光阀装置中，在入射侧偏光板和液晶单元之间设置两个相位差板。两个相位差板的光轴彼此垂直，并且其中一个倾斜一个角度，从而由液晶单元引起的相位差由两相差板产生的相位差补偿。

2. 发明授权

US07134757B2 Projection type display apparatus, rear projection, and multi-vision system 有权
标题翻译：投影型显示装置，背投，多视觉系统
公开(公告)号：US07134757B2
公开(公告)日：2006-11-14
申请号：US11130901
申请日：2005-05-17
申请人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
发明人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
IPC分类号： G03B21/20 , G03B21/26 , G02F1/1335 , H04N3/12
CPC分类号： H04N9/3114 , G02B19/0028 , G02B19/0047 , G02B26/0841 , G03B21/20 , H04N5/7416 , H04N5/7458 , H04N9/3141
摘要： The present invention provides a small projection type display apparatus capable of suppressing an optical path of incident light and an optical path of output light in a reflection type light valve from being overlapped with each other and obtaining a projected image of high quality; a rear projector and a multi-vision system using the same. The projection type display apparatus is composed of an illumination optical system 2 for collecting light radiated from a light source 1 to form illumination light, a reflection type light valve 6 for reflecting the illumination light to output modulated light forming an optical image, a projection lens system 7 for projecting an optical image formed by the reflection type light valve, and a lens element 5 with a positive power. The lens element 5 is composed of one plano-convex lens, and is placed between the reflection type light valve and the projection lens system with a convex surface directed to the projection lens system, in such a manner that the illumination light passes through the lens element to illuminate the reflection type light valve, and the modulated light output from the reflection type light valve passes through the lens element to be incident upon the projection lens system.
摘要翻译：本发明提供一种能够抑制入射光的光路和反射型光阀中的输出光的光路彼此重叠并获得高品质的投影图像的小型投影型显示装置。后投影机和使用其的多视觉系统。投影型显示装置由用于收集从光源1照射的光以形成照明光的照明光学系统2，反射型光阀6，用于反射照明光以输出形成光学图像的调制光，投影透镜用于投影由反射型光阀形成的光学图像的系统7和具有正光焦度的透镜元件5。透镜元件5由一个平凸透镜构成，并且以照明光通过透镜的方式设置在反射型光阀和投影透镜系统之间，具有朝向投影透镜系统的凸面元件以照亮反射型光阀，并且从反射型光阀输出的调制光通过透镜元件入射到投影透镜系统。

3. 发明申请

US20050099606A1 Projection type display apparatus rear projection and multi-vision system 有权
标题翻译：投影式显示装置背投和多视觉系统
公开(公告)号：US20050099606A1
公开(公告)日：2005-05-12
申请号：US10467812
申请日：2002-09-30
申请人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
发明人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
IPC分类号： G02B19/00 , G02B26/08 , H04N5/74 , G03B21/00
CPC分类号： H04N9/3114 , G02B19/0028 , G02B19/0047 , G02B26/0841 , G03B21/20 , H04N5/7416 , H04N5/7458 , H04N9/3141
摘要： The present invention provides a small projection type display apparatus capable of suppressing an optical path of incident light and an optical path of output light in a reflection type light valve from being overlapped with each other and obtaining a projected image of high quality; a rear projector and a multi-vision system using the same. The projection type display apparatus is composed of an illumination optical system 2 for collecting light radiated from a light source 1 to form illumination light, a reflection type light valve 6 for reflecting the illumination light to output modulated light forming an optical image, a projection lens system 7 for projecting an optical image formed by the reflection type light valve, and a lens element 5 with a positive power. The lens element 5 is composed of one plano-convex lens, and is placed between the reflection type light valve and the projection lens system with a convex surface directed to the projection lens system, in such a manner that the illumination light passes through the lens element to illuminate the reflection type light valve, and the modulated light output from the reflection type light valve passes through the lens element to be incident upon the projection lens system.
摘要翻译：本发明提供一种能够抑制入射光的光路和反射型光阀中的输出光的光路彼此重叠并获得高品质的投影图像的小型投影型显示装置。后投影机和使用其的多视觉系统。投影型显示装置由用于收集从光源1照射的光以形成照明光的照明光学系统2，反射型光阀6，用于反射照明光以输出形成光学图像的调制光，投影透镜用于投影由反射型光阀形成的光学图像的系统7和具有正光焦度的透镜元件5。透镜元件5由一个平凸透镜构成，并且以照明光通过透镜的方式设置在反射型光阀和投影透镜系统之间，具有朝向投影透镜系统的凸面元件以照亮反射型光阀，并且从反射型光阀输出的调制光通过透镜元件入射到投影透镜系统。

4. 发明授权

US06761457B2 Optical illumination device and projection display device 失效
标题翻译：光学照明装置和投影显示装置
公开(公告)号：US06761457B2
公开(公告)日：2004-07-13
申请号：US10148828
申请日：2002-11-14
申请人： Mitsuhiro Wada , Yoshihiro Masumoto , Yoshimasa Fushimi
发明人： Mitsuhiro Wada , Yoshihiro Masumoto , Yoshimasa Fushimi
IPC分类号： G03B2100
CPC分类号： H04N5/7441 , G02B19/0028 , G02B19/0047 , G02B27/0927 , G02B27/0955 , G03B21/005 , H04N9/3102
摘要： A conventional optical illumination device has a problem in which uneven brightness appears in an inclining direction when an illuminated region inclined with respect to an optical axis is illuminated. An optical illumination device is formed by using a front optical illumination system, an eccentric lens, and a relay lens. The front optical illumination system is composed of a lamp, an elliptical-surface mirror, a UV-IR cut filter, a condenser, a first lens, and a second lens. The relay lens conjugates a second light-emitting surface and a third light-emitting surface that are inclined with respect to an optical axis. The eccentric lens is made eccentric with respect to an optical axis, effectively emits light, which is emitted from the second lens, to the relay lens, and inclines the second light-emitting surface in a direction in which brightness gradient appearing on the relay lens is canceled.
摘要翻译：常规的光照明装置具有当相对于光轴倾斜的照明区域被照亮时在倾斜方向上出现不均匀的亮度的问题。光学照明装置通过使用前光学照明系统，偏心透镜和中继镜头前光学照明系统由灯，椭圆面镜，UV-IR截止滤光片，聚光镜，第一透镜和第二透镜组成。中继透镜将第二发光面和第三光相对于光轴倾斜的偏心透镜相对于光轴偏心，有效地将从第二透镜发射的光发射到中继透镜，并且倾斜第二发光在中继透镜上出现亮度梯度的方向上的表面被取消。

5. 发明授权

US07204613B2 Projection display device 有权
标题翻译：投影显示设备
公开(公告)号：US07204613B2
公开(公告)日：2007-04-17
申请号：US10474987
申请日：2002-03-07
申请人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
发明人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
IPC分类号： F21S8/00 , F21V8/00
CPC分类号： H04N5/7416 , G03B21/005
摘要： A projection type display apparatus is composed of a light source (101), an illumination optical system (102) for forming illumination light, a reflection type light valve (106) for reflecting the illumination light to form an optical image, a projection optical system (107) for projecting the optical image, and a lens (105) with a positive power. An optical axis (115) of the reflection type light valve, an optical axis (113) of the projection optical system, and an optical axis (114) of the lens with a positive power are matched with each other. The illumination optical system (102) is placed so that the illumination light passes through the lens (105) with a positive power and is reflected from the reflection type light valve (106). An output pupil (108) of the illumination optical system (102) and an entrance pupil (109) of the projection optical system (107) are placed so as to have a conjugate relationship with respect to the lens (105) with a positive power.
摘要翻译：投影型显示装置由光源（101），用于形成照明光的照明光学系统（102），用于反射照明光以形成光学图像的反射型光阀（106），投影光学系统（107），用于投影光学图像，以及具有正光焦度的透镜（105）。反射型光阀的光轴（115），投影光学系统的光轴（113）和具有正光焦度的透镜的光轴（114）彼此匹配。照明光学系统（102）被放置成使得照明光以正光焦度通过透镜（105）并被反射型光阀（106）反射。投影光学系统（107）的照明光学系统（102）的输出光瞳（108）和入射光瞳（109）被放置成具有相对于透镜（105）的正向功率的共轭关系。

6. 发明授权

US5649753A Projection display apparatus 失效
标题翻译：投影显示装置
公开(公告)号：US5649753A
公开(公告)日：1997-07-22
申请号：US440068
申请日：1995-05-12
申请人： Yoshihiro Masumoto
发明人： Yoshihiro Masumoto
IPC分类号： G02F1/13 , G02B27/18 , G02F1/1335 , G02F1/13357 , G03B21/14 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105 , G03B21/2013 , H04N9/3152 , H04N9/3155 , H04N9/3164
摘要： A projection display apparatus includes a light source, a light valve, and a projection lens. The light source includes at least two luminous elements, a plurality of light condensing devices provided in the same number as the luminous elements, and a light transmitting device for transmitting the light beams outgoing from the respective light condensing devices to the light valve in a superimposed state. The light transmitting optical device forms actual images of the plurality of luminous elements on an optical path thereof so that the actual images are substantially inscribed in a circle on the same, single plane. The projection display apparatus further includes a device for lighting up at least one of the plurality of luminous elements selectively so as to change the brightness of the image displayed by projection by steps.
摘要翻译：投影显示装置包括光源，光阀和投影透镜。光源包括至少两个发光元件，与发光元件相同数量的多个聚光装置，以及用于将从各个聚光装置输出的光束叠加到光阀的光传输装置州。光传输光学装置在其光路上形成多个发光元件的实际图像，使得实际图像基本上在相同的单个平面上的圆内。投影显示装置还包括用于选择性地点亮多个发光元件中的至少一个的装置，以便通过逐步投影改变显示的图像的亮度。

7. 发明授权

US4943154A Projection display apparatus 失效
标题翻译：投影显示装置
公开(公告)号：US4943154A
公开(公告)日：1990-07-24
申请号：US314071
申请日：1989-02-23
申请人： Yoshito Miyatake , Yoshihiro Masumoto
发明人： Yoshito Miyatake , Yoshihiro Masumoto
IPC分类号： H04N9/31
CPC分类号： H04N9/3105
摘要： A projection display apparatus has a light source, a component color separator, a light transmitter(s), three light valves, a light combiner, a single projection lens, and a drive circuit. The light transmitter includes an input side convergent lens for producing a real image of a luminous element in the light source at a location adjacent to a central convergent lens. The central convergent lens produces a real image of an object situated about a position of the input side convergent lens at a location adjacent to an output side convergent lens. The output side convergent lens permits its output light to reach the projection lens. Accordingly, divergent light is converged along a considerably extending portion of the optical path and directed to the projection lens so that the efficiency of light in use can be improved, thus allowing the projection display apparatus to remain compact in size and provide a great light output power.
摘要翻译：投影型显示装置具有光源，分量色分离器，光发射器，三光阀，光组合器，单投影透镜和驱动电路。光发射器包括输入侧会聚透镜，用于在与中心会聚透镜相邻的位置处产生光源中的发光元件的实像。中心会聚透镜在与输出侧会聚透镜相邻的位置处产生位于输入侧会聚透镜的位置周围的物体的实际图像。输出侧会聚透镜允许其输出光到达投影透镜。因此，发散光沿着光路的相当延伸的部分会聚并被引导到投影透镜，使得可以提高使用中的光的效率，从而允许投影显示装置保持紧凑的尺寸并提供大的光输出功率。

8. 发明授权

US4935758A Projection display apparatus 失效
标题翻译：投影显示装置
公开(公告)号：US4935758A
公开(公告)日：1990-06-19
申请号：US314072
申请日：1989-02-23
申请人： Yoshito Miyatake , Yoshihiro Masumoto
发明人： Yoshito Miyatake , Yoshihiro Masumoto
IPC分类号： G09F9/00 , G02B27/10 , G02F1/13 , G02F1/1335 , G03B33/12 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105
摘要： A projection display apparatus which is designed to separate a light from the light source into color lights of three primary colors by a color separator, irradiate the respective color lights to corresponding three light valves, combine the optical images on the light valves by a light combiner formed by intersecting dichroic reflection surfaces in X-letter form, followed by projecting the combined image by enlargement on a screen with a projection lens. The color separator is made by intersecting in X-letter form a first and second flat plate type dichroic mirrors. The second dichroic mirror is composed of two small dichroic mirrors made by separating into two parts of the intersecting part. The two small type dichroic mirrors are disposed on mutually different places so that, when viewed from the output side of the light which advances straightly through the color separator, the two edge surfaces which form the intersecting part of the two small dichroic mirrors are seen as being in overlapped state. Due to the existence of the two places of the intersecting parts of the dichroic mirrors, it is possible to make the produced bright lines on the projected image lens conspicuous.

9. 发明申请

US20070013880A1 PROJECTION TYPE DISPLAY APPARATUS, REAR PROJECTOR AND MULTI-VISION SYSTEM 有权
标题翻译：投影类型显示设备，后投影机和多视觉系统
公开(公告)号：US20070013880A1
公开(公告)日：2007-01-18
申请号：US11533598
申请日：2006-09-20
申请人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
发明人： Yoshimasa Fushimi , Yoshihiro Masumoto , Mitsuhiro Wada
IPC分类号： G03B21/20
CPC分类号： H04N9/3114 , G02B19/0028 , G02B19/0047 , G02B26/0841 , G03B21/20 , H04N5/7416 , H04N5/7458 , H04N9/3141
摘要： The present invention provides a small projection type display apparatus capable of suppressing an optical path of incident light and an optical path of output light in a reflection type light valve from being overlapped with each other and obtaining a projected image of high quality; a rear projector and a multi-vision system using the same. The projection type display apparatus is composed of an illumination optical system 2 for collecting light radiated from a light source 1 to form illumination light, a reflection type light valve 6 for reflecting the illumination light to output modulated light forming an optical image, a projection lens system 7 for projecting an optical image formed by the reflection type light valve, and a lens element 5 with a positive power. The lens element 5 is composed of one plano-convex lens, and is placed between the reflection type light valve and the projection lens system with a convex surface directed to the projection lens system, in such a manner that the illumination light passes through the lens element to illuminate the reflection type light valve, and the modulated light output from the reflection type light valve passes through the lens element to be incident upon the projection lens system.
摘要翻译：本发明提供一种能够抑制入射光的光路和反射型光阀中的输出光的光路彼此重叠并获得高品质的投影图像的小型投影型显示装置。后投影机和使用其的多视觉系统。投影型显示装置由用于收集从光源1照射的光以形成照明光的照明光学系统2，反射型光阀6，用于反射照明光以输出形成光学图像的调制光，投影透镜用于投影由反射型光阀形成的光学图像的系统7和具有正光焦度的透镜元件5。透镜元件5由一个平凸透镜构成，并且以照明光通过透镜的方式设置在反射型光阀和投影透镜系统之间，具有朝向投影透镜系统的凸面元件以照亮反射型光阀，并且从反射型光阀输出的调制光通过透镜元件入射到投影透镜系统。

10. 发明授权

US07055959B2 Projection display device and back projection display device using the display device 失效
标题翻译：投影显示装置和使用显示装置的背投显示装置
公开(公告)号：US07055959B2
公开(公告)日：2006-06-06
申请号：US10485898
申请日：2002-09-27
申请人： Mitsuhiro Wada , Yoshihiro Masumoto , Yoshimasa Fushimi
发明人： Mitsuhiro Wada , Yoshihiro Masumoto , Yoshimasa Fushimi
IPC分类号： G03B21/20 , G03B21/22
CPC分类号： H04N9/3114 , G02B19/0028 , G02B19/0047 , G03B21/008 , H04N5/7416 , H04N5/7458 , H04N9/3141
摘要： A projection display apparatus includes a light source (1), an illumination system (8), a reflection system (9), a reflection-type light modulator (10), a lens element (11), and a projection system (12). The optical axis (8a) of the illumination system (8) and the optical axis (12a) of the projection system (12) are skew lines. The lens element (11) allows the exit pupil (8b) of the illumination system (8) to be conjugated substantially with the entrance pupil (12b) of the projection system (12). Thus, the reflection-type light modulator (10) and the projection system (12) can be arranged coaxially. Moreover, mechanical contact or interference between the optical components can be eliminated, and the space can be utilized efficiently. This configuration can provide an inexpensive compact projection display apparatus using a reflection-type light modulator.
摘要翻译：投影显示装置包括光源（1），照明系统（8），反射系统（9），反射型光调制器（10），透镜元件（11）和投影系统（12）。照明系统（8）的光轴（8a）和投影系统（12）的光轴（12a）是斜线。透镜元件（11）允许照明系统（8）的出射光瞳（8b）基本上与投影系统（12）的入射光瞳（12b）共轭。因此，反射型光调制器（10）和投影系统（12）可以同轴布置。此外，可以消除光学部件之间的机械接触或干涉，并且可以有效地利用空间。该配置可以提供使用反射型光调制器的便宜的紧凑型投影显示装置。

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