专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2005274955A Optical system for rear projection display 审中-公开
标题翻译：用于后投影显示的光学系统
公开(公告)号：JP2005274955A
公开(公告)日：2005-10-06
申请号：JP2004087840
申请日：2004-03-24
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 龍男内田 , 株式会社東北テクノブレインズ
发明人： KATAGIRI BAKU , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G02B27/18 , G02B27/28 , G03B21/00 , G03B21/10 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide an optical system for a rear projection display in which external light intruded into the optical system is not dispersed in the direction of an observer, a high contrast ratio is realized under a bright environment, and both of the high contrast ratio and high projector light using efficiency are attained under the bright environment.
SOLUTION: In the optical system for the rear projection display which comprises a screen, a reflector mirror 5 for projecting the reflected light of projector light to the rear surface of the screen, and a projector 4 for projecting the projector light to the reflector 5, the screen is made of a screen 10 of multilayer structure consisting of a polarizer 1, a diffusion layer 2 and a 1/4 wavelength plate 3.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于后投影显示器的光学系统，其中入射到光学系统中的外部光不沿观察者的方向分散，在明亮的环境下实现高对比度，并且两者在明亮的环境下实现高对比度和高投影光使用效率。解决方案：在用于包括屏幕的背投显示器的光学系统中，用于将投影仪光的反射光投射到屏幕的后表面的反射镜5和用于将投影仪光投射到屏幕的投影仪4 反射器5，屏幕由由偏振器1，扩散层2和1/4波片3组成的多层结构的屏幕10制成。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2004069836A Screen for front projection display 有权
公开(公告)号：JP2004069836A
公开(公告)日：2004-03-04
申请号：JP2002226205
申请日：2002-08-02
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 内田龍男 , 株式会社東北テクノブレインズ
发明人： KATAGIRI BAKU , MIYASHITA TETSUYA , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G03B21/60 , G02B1/11 , G02B5/08 , H04N5/72 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To secure the high quality of a display picture even under the environment of brightness exceeding the high-quality picture display limit of a conventional screen.
SOLUTION: The screen 20 for the front projection display is provided with a reflection layer 1 having a reflection surface 1A bent in a saw-toothed state; a transparent smoothing layer 2 brought into close contact with the saw-toothed reflection surface of the reflection layer; a light control layer 3 brought into close contact with the surface on the counter reflection layer side of the smoothing layer to transmit the light while scattering it or while making it advance straight depending on the incident direction of the light; or furthermore an antireflection layer 4 brought into close contact with the surface on the counter smoothing layer side of the light control layer and restraining the reflection from the surface.
COPYRIGHT: (C)2004,JPO

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 发明专利

JP2006323284A PROJECTION DISPLAY SCREEN USING DEFLECTION ELEMENT, AND PROJECTION DISPLAY SYSTEM 审中-公开
公开(公告)号：JP2006323284A
公开(公告)日：2006-11-30
申请号：JP2005148265
申请日：2005-05-20
申请人： UNIV TOHOKU , TOHOKU TECHNO BRAINS CORP
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI
IPC分类号： G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a projection display screen using a deflection element wherein diffused reflection of external light toward an observer is suppressed, and a bright place contrast ratio is enhanced, and to provide a projection display system. SOLUTION: The screen is constituted by layering the deflection element 1, a black matrix (BM)2 and a diffusion film 3 in this order, the deflection element 1 deflects light made incident from a projector light incident angle area, and then, emits the deflected light in a deflection element exit angle area and a deflection element exit surface area in accordance with the projector light incident angle area, the black matrix (BM)2 has a transmissive surface area 2A matched with the deflection element exit surface area, and the diffusion film 3 has an incident permission angle area matched with the deflection element exit angle area, and diffuses the light incident from the deflection element exit angle area, and then, emits the diffused light to an observation angle area in accordance with the deflection element exit angle area. COPYRIGHT: (C)2007,JPO&INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式