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1. 发明专利

JP2006235403A Unit for variably converting light direction without depending on light wavelength and thin rear projection display optical system 审中-公开
标题翻译：单独转换光方向，不依赖于光波长和后端投影显示光学系统
公开(公告)号：JP2006235403A
公开(公告)日：2006-09-07
申请号：JP2005052073
申请日：2005-02-25
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI
IPC分类号： G02B13/24 , G03B21/10
摘要： PROBLEM TO BE SOLVED: To provide a unit for variably converting a light direction without depending on a light wavelength, which is capable of realizing a light direction converting means having a light direction conversion characteristic without degrading image quality and without depending on a light wavelength and capable of composing a thin rear projection optical system of high image quality by using the light direction converting means, and to provide a thin rear projection display optical system using the unit.
SOLUTION: The unit 50 for variably converting a light direction comprises one or more optical deflection elements 6 arranged such that achromatic lenses 4 and 5 having positive and negative focal distances respectively or achromatic lenses having positive focal distances are disposed so that their optical axes are almost parallel and the sum of their focal distances and a relative distance in the optical axis direction are almost equal. The thin rear projection display optical system comprises the unit disposed in the system.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于可变地转换光方向而不依赖于光波长的单元，其能够实现具有光方向转换特性的光方向转换装置，而不会降低图像质量，而不依赖于并且能够通过使用光方向转换装置构成具有高图像质量的薄的后投影光学系统，并且提供使用该单元的薄的后投影显示光学系统。解决方案：用于可变地转换光方向的单元50包括一个或多个光学偏转元件6，其布置成使得具有正和负焦距的消色差透镜4和5或具有正焦距的消色差透镜被布置成使得它们的光轴几乎平行，它们的焦距和光轴方向上的相对距离之和几乎相等。薄的背投显示光学系统包括设置在系统中的单元。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006208553A Rear projection display optical system limiting light emitting angle of projector 审中-公开
标题翻译：后投影显示光学系统限制发光角度的投影仪
公开(公告)号：JP2006208553A
公开(公告)日：2006-08-10
申请号：JP2005018122
申请日：2005-01-26
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI
IPC分类号： G03B21/10 , G02B17/00 , G03B21/28
摘要： PROBLEM TO BE SOLVED: To provide a rear projection display optical system limiting the light emitting angle of a projector capable of realizing a high-resolution and high-efficiency thinned rear projection display.
SOLUTION: In the rear projection display optical system successively reflecting light from a picture display element 1 by a plurality of aspherical reflection plates 2
1 to 2
n and guiding it to a screen 3, a difference |θ
max -θ
min | between a maximum angle θ
max and a minimum angle θ
min in the emitting direction of light from the picture display element on a cross section longitudinally cutting the optical path of the optical system is within a range equal to or under an angle α decided from geometrical optics and equal to or above an angle β decided from wave optics, and the locus of the intersection of two light beams emitted from one point moving on all the surface of the picture display element at two angles θ
max and θ
min and reflected on the aspherical reflection plate 2
n of a final stage forms an almost plane, and a screen surface is positioned within the range of the recessed and projecting parts of the almost plane.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供限制能够实现高分辨率和高效率薄型背投显示的投影仪的发光角度的背投显示光学系统。解决方案：在后投影显示光学系统中，通过多个非球面反射板2 1 连续地将来自图像显示元件1的光反射到2 n 并将其引导在最大角度θ max 与最小角度θ min 之间的差值¾θ <<<<< / SB>在纵向切割光学系统的光路的横截面上来自图像显示元件的光的发射方向处于等于或低于由几何光学决定并等于或大于角度β的角度α的范围内由波形光学决定，并且以两个角度θ max 和θ min 从图像显示元件的所有表面上移动的一个点发射的两个光束的交点并且反射在最终级的非球面反射板2上形成几乎平面，并且屏幕表面位于凹进和突出部分的范围内几乎飞机。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006259014A Tilting projection optical system through fourier surface 审中-公开
标题翻译：倾斜投影光学系统通过FOURIER表面
公开(公告)号：JP2006259014A
公开(公告)日：2006-09-28
申请号：JP2005074175
申请日：2005-03-16
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI
IPC分类号： G02B27/46 , G02B17/08 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a projection optical system through a Fourier surface, which allows reduction of aberrations thereof and provides a thin projection display device having high-resolution and high-definition image display characteristics.
SOLUTION: In the projection optical system, an emitted optical image from an image display element 10 is Fourier-transformed by a first phase modulation element 1, and a Fourier spectrum appearing on a Fourier surface 30 by this transform is inversely Fourier-transformed by a second phase modulation element 2, whereby the optical image is enlarged and formed on a screen face 20'. Respective optical axes of the image display element and the first and second phase modulation elements coincide with each other approximately, and the optical axis of the image display element and a normal of the screen face are tilted to a z-axis, and sum of tilt angles of both of them is about 0°.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供通过傅立叶表面的投影光学系统，其允许减小其像差，并提供具有高分辨率和高清晰度图像显示特性的薄投影显示装置。解决方案：在投影光学系统中，来自图像显示元件10的发出的光学图像由第一相位调制元件1进行傅立叶变换，并且通过该变换在傅立叶表面30上出现的傅立叶频谱是反傅立叶变换的，由第二相位调制元件2变换，从而使光学图像被放大并形成在屏幕表面20'上。图像显示元件和第一和第二相位调制元件的各自的光轴大致相互重合，图像显示元件的光轴和屏幕面的法线倾斜到z轴，倾斜和它们两者的角度约为0°。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006235406A Projection optical system with fourier plane 审中-公开
标题翻译：投影光学系统与傅立叶平面
公开(公告)号：JP2006235406A
公开(公告)日：2006-09-07
申请号：JP2005052166
申请日：2005-02-25
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI
IPC分类号： G03B21/00 , G02B13/16 , G02B17/00
摘要： PROBLEM TO BE SOLVED: To provide a projection optical system with a Fourier plane, which can achieve a flat type projection display device which can make aberrations of an optical system small and has image display characteristics of high resolution and high definition. SOLUTION: In the projection optical system, an optical image emitted from an image display element 10 is Fourier-transformed by a first phase modulation element 1, and a Fourier spectrum appearing on a Fourier plane 30 by this transform is inversely Fourier-transformed by a second phase modulation element 2, and an image is enlarged and formed on a screen 20. Respective optical axes of the image display element and the first and second phase modulation elements are different from one another, and the optical axes of the first and second phase modulation elements and the normal of the screen face are approximately parallel with the optical axis of the image display element. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有傅立叶平面的投影光学系统，其能够实现能够使光学系统的像差小并具有高分辨率和高清晰度的图像显示特性的平面型投影显示装置。解决方案：在投影光学系统中，从图像显示元件10发射的光学图像由第一相位调制元件1进行傅立叶变换，并且通过该变换在傅立叶平面30上出现的傅立叶频谱是反傅立叶变换，由第二相位调制元件2变换，并且图像被放大并形成在屏幕20上。图像显示元件和第一和第二相位调制元件的各个光轴彼此不同，并且第一第二相位调制元件和屏幕面的法线近似平行于图像显示元件的光轴。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006171074A Screen using film having light emission direction conversion function and projection display system optical system 有权
标题翻译：屏幕使用薄膜方向转换功能和投影显示系统光学系统
公开(公告)号：JP2006171074A
公开(公告)日：2006-06-29
申请号：JP2004359623
申请日：2004-12-13
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , ISHINABE TAKAHIRO
IPC分类号： G03B21/62 , G03B21/10
摘要： PROBLEM TO BE SOLVED: To realize a light emission direction conversion film which does not generate a ghost of an image or decrease in a contrast ratio due to a complicated interface, which has high emission direction conversion efficiency, and which has no limit in the emission direction conversion angle, and to provide a thin high-quality projection display using it as a screen. SOLUTION: In the screen 10 composed of a diffusion film 3 and the light emission direction conversion film 2 for emitting a light incident from an oblique direction to the right direction, the light emission direction conversion film has the structure such that a plurality of layers 1 having different refractive indexes between the adjacent layers and forming a plurality of waveguides of a step index type and/or a waveguide of a type having a refractive index distribution for exhibiting a light convergence function with respect to the thickness direction of the layers are arranged like stripes with respect to the in-plane direction of the film, and are curved and extended with respect to the thickness direction of the film. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现不会产生图像的重影或由于具有高发射方向转换效率的复杂的界面引起的对比度的降低的发光方向转换膜，并且没有限制在发射方向转换角度，并提供使用其作为屏幕的薄的高质量投影显示。解决方案：在由扩散膜3和发光方向转换膜2构成的屏幕10中，用于发射从向右方向倾斜的方向入射的光，发光方向转换膜具有这样的结构：的层1在相邻层之间具有不同的折射率，并且形成多个阶跃折射率的波导和/或具有折射率分布的类型的波导，用于相对于层的厚度方向呈现会聚功能相对于膜的面内方向排列成条状，并且相对于膜的厚度方向弯曲并延伸。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2007017813A Three-dimensional linear spatial imaging optical system and projection optical system using the same 审中-公开
标题翻译：三维线性空间成像光学系统和投影光学系统
公开(公告)号：JP2007017813A
公开(公告)日：2007-01-25
申请号：JP2005200969
申请日：2005-07-08
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KAWAKAMI TORU , KATAGIRI BAKU , KURATOMI YUHEI
IPC分类号： G02B13/00 , G02B17/08 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a three-dimensional linear spatial imaging optical system capable of yielding a formed image without nonlinear strain to an object even when an incident angle on an imaging surface is made large, and a projection optical system using the same.
SOLUTION: Provided are the three-dimensional linear spatial imaging optical system 5 which forms the non-deformed image of a three-dimensional object (object grating 3) or the deformed image (imaging grating 4) thereof uniformly elongated and contracted and/or sheared in respective axial directions of three orthogonal axes in a separate space, and the projection optical system which uses the three-dimensional linear spatial imaging optical system, and where a picture display device 12 is arranged to be tilted to an optical axis 6 as the three-dimensional object therefor and a screen 13 is arranged nearly at the imaging position.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在成像面上的入射角变大的情况下，能够产生对物体没有非线性应变的形成图像的三维线性空间成像光学系统，以及使用一样。解决方案：提供了形成三维物体（物体光栅3）或其变形图像（成像光栅4）的未变形图像的三维线性空间成像光学系统5，其均匀地伸长和收缩， /或在单独的空间中在三个正交轴的各轴向上剪切，以及使用三维线性空间成像光学系统的投影光学系统，其中图像显示装置12布置成向光轴6倾斜作为其三维物体，屏幕13几乎位于成像位置。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006084563A Screen for projection display 有权
标题翻译：投影显示画面
公开(公告)号：JP2006084563A
公开(公告)日：2006-03-30
申请号：JP2004267170
申请日：2004-09-14
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , ISHINABE TAKAHIRO
IPC分类号： G02B5/02 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To realize a diffusion film, of which the intensity distribution characteristic of diffused light is arbitrarily controllable and of which the diffusion angle area does not change to incident light from a specified angle area, and to provide a high-quality projection display system that uses the diffusion film as a screen.
SOLUTION: The screen for the projection display is composed of the diffusion film, having a structure where a plurality of layers 1
1 and 1
2 forming a plurality of step index type optical waveguides, while keeping different refractive indexes between the adjacent layers form stripes being arranged in one direction on a film surface and are extended in the direction of a layer tilting angle distributed in almost top hat shape within a predetermined angle range with respect to the film thickness direction, or structure where a plurality of layers 2
1 forming optical waveguides, while keeping refractive index distribution exhibiting light-condensing ability in the layer thickness direction at a part in the film thickness direction are extended in the film thickness direction or in a direction tilted from the film thickness direction with layer length distributed in almost top hat shape within the predetermined range, or a structure obtained by combining the above structure.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现扩散光的强度分布特性是任意可控的并且漫射角度面积不会对来自特定角度区域的入射光改变，并且提供高的扩散膜使用扩散膜作为屏幕的质量投影显示系统。＆lt; P＆gt;解决方案：用于投影显示的屏幕由扩散膜组成，具有多个层1 1 和1 2 的结构，形成多个步骤在相邻层之间保持不同折射率的折射率型光波导形成在膜表面上沿一个方向布置的条纹，并且在相对于相对于第一层的光学波导的预定角度范围内以几乎顶帽形状分布的层倾斜角度的方向延伸在形成光波导的多个层2 1 的膜厚度方向或结构上，同时保持在膜厚度方向的一部分处具有在层厚度方向上呈现聚光能力的折射率分布在膜厚度方向上或沿着膜厚度方向倾斜的方向，层厚分布在预定范围内的几何顶帽形状，或通过组合上述结构而获得的结构结构体。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2012237798A Multidirectional projection system and multidirectional projection method 有权
标题翻译：多向投影系统和多向投影方法
公开(公告)号：JP2012237798A
公开(公告)日：2012-12-06
申请号：JP2011105148
申请日：2011-05-10
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： ISO KAZUYUKI , OZAWA SHIRO , YAO YASUHIRO , UCHIDA TATSUO , SUZUKI YOSHITO , KAWAKAMI TORU , KATAGIRI BAKU
IPC分类号： G03B21/10 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a multidirectional system capable of projecting, in a plurality of directions, different videos according to the corresponding directions without limiting a projection angle, shortening a projection distance and making the entire system compact.SOLUTION: A multidirectional projection system 101 comprises: a screen 1; and a plurality of projectors 2 arranged behind the screen 1 and configured to project video light beam K3 spread over a predetermined range onto a screen 1 at different angles. The screen 1 emits the video light beam K3 of each projector 2 forward as diffusion light 51 of the same diffusion angle range for each of the projector 2. The diffusion light of at least two of the projectors 2 is superposed, thereby composing a video in a specific direction based on the at least two diffusion light beams K3.
摘要翻译：要解决的问题：提供一种多方向系统，其能够在多个方向上根据相应的方向投影不同的视频，而不会限制投影角度，缩短投影距离并使整个系统变得紧凑。解决方案：多向投影系统101包括：屏幕1; 以及布置在屏幕1后面并被配置为将以预定范围分散的视频光束K3以不同角度投影到屏幕1上的多个投影仪2。屏幕1将每个投影仪2的视频光束K3向前发射，作为对于投影仪2的扩散角范围相同的扩散角范围的扩散光51.至少两个投影仪2的扩散光被叠加，从而构成视频基于至少两个漫射光束K3的特定方向。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012042599A Reflective front screen having recursive property and reflective screen for stereoscopic display 有权
标题翻译：具有回收性的反光镜片和立体显示器的反射屏幕
公开(公告)号：JP2012042599A
公开(公告)日：2012-03-01
申请号：JP2010182313
申请日：2010-08-17
申请人： Nippon Telegr & Teleph Corp , Tohoku Univ , 国立大学法人東北大学 , 日本電信電話株式会社
发明人： TAKADA HIDEAKI , DATE MUNEKAZU , UCHIDA TATSUO , KAWAKAMI TORU , ISHINABE TAKAHIRO , KATAGIRI BAKU
IPC分类号： G03B21/60 , G02B5/02 , G02B5/08 , G02B5/09 , G02B5/122 , G02B27/22 , G03B21/00 , G03B21/14 , G03B35/24
摘要： PROBLEM TO BE SOLVED: To provide a reflective front screen having recursive property and a reflective screen for stereoscopic display that allow a user to watch a video image in which the user projects exclusively in high quality without a crosstalk with an image in which other users project even in a case where a plurality of users project different images using personal projectors to a single screen from respective watching positions.SOLUTION: A screen laminated body formed by laminating a plurality of screens made of an internal refractive index distribution structure diffusion film having a top hat diffusion property independent of an incident angle in a predetermined incident angle region and a transparent property instead of the diffusion property outside the predetermined incident angle region is tightly laminated on a reflective film having a retroreflective property. The plurality of screens have respectively different incident angle regions.
摘要翻译：要解决的问题：为了提供具有递归性质的反射前屏幕和用于立体显示的反射屏幕，其允许用户观看用户以高质量专门投射的视频图像，而不与其中的图像串扰即使在多个用户使用个人投影仪将不同的图像投射到来自各个观看位置的单个屏幕的情况下，其他用户也会进行投影。解决方案：一种屏幕层叠体，其通过层叠由内折射率分布结构扩散膜制成的多个屏幕，所述多个屏幕具有与预定入射角区域中的入射角无关的顶帽扩散特性，而不是透明特性在预定入射角区域外的扩散特性紧密层压在具有回射性能的反射膜上。多个屏幕分别具有不同的入射角区域。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2011142065A Illumination device and display device 有权
标题翻译：照明装置和显示装置
公开(公告)号：JP2011142065A
公开(公告)日：2011-07-21
申请号：JP2010088763
申请日：2010-04-07
申请人： Sony Corp , Tohoku Univ , ソニー株式会社 , 国立大学法人東北大学
发明人： UCHIDA TATSUO , ISHINABE TAKAHIRO , KAWAKAMI TORU , OKUYAMA KENTARO , NAGATANI SHINPEI , HIRUKOI AKIRA , IKEDA MASAHIRO
IPC分类号： F21S2/00 , F21V7/00 , F21V7/22 , G02B5/02 , G02F1/13 , G02F1/1334 , G02F1/13357 , G02F1/1343
CPC分类号： G02F1/1334 , G02F1/133611 , G02F1/134309 , G02F2001/133601
摘要： PROBLEM TO BE SOLVED: To provide an illumination device capable of raising a modulation ratio, equalizing in-plane luminance, and to provide a display device with the same.
SOLUTION: A light modulation layer 34 including a bulk 34A and fine particles 34B is provided inside of a light modulating element 30 adhered to a light guide plate 10. Both of the bulk 34A and the fine particles 34B have optical anisotropy, and have the responding speed different from each other relative to an electric field. A lower side electrode 32 and an upper side electrode 36 for applying the electric field to the bulk 34A and the fine particles 34B are provided inside of the light modulating element 30. The lower side electrode 32 and the upper side electrode 36 are formed of a plurality of belt-like partial electrodes 32A and 36A. At least one of the partial electrodes 32A and 36A is formed with a pattern, and pattern density of the electrode formed with a pattern among the electrodes is set to be different depending on a distance from a light source 20.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够提高调制比，均匀平面内亮度的照明装置，并提供具有该照明装置的显示装置。解决方案：在粘附到导光板10的光调制元件30的内部设置包括主体34A和微粒34B的光调制层34.本体34A和微粒34B都具有光学各向异性，并且具有相对于电场彼此不同的响应速度。在光调制元件30的内部设置用于将电场施加到主体34A和微粒34B的下侧电极32和上侧电极36.下侧电极32和上侧电极36由多个带状部分电极32A和36A。部分电极32A和36A中的至少一个形成有图案，并且根据与光源20的距离将在电极中形成有图案的电极的图案密度设置为不同。版权所有（ C）2011，JPO＆INPIT

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