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21. 发明专利

JP2007183169A Shape measuring method of prism array for projection screen 审中-公开
标题翻译：投影屏幕预置阵列的形状测量方法
公开(公告)号：JP2007183169A
公开(公告)日：2007-07-19
申请号：JP2006001539
申请日：2006-01-06
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , AOYAMA IORI , KATAGIRI BAKU , KAWAKAMI TORU , KURATOMI YUHEI , YOSHIDA NAOKI
IPC分类号： G01B11/24
摘要： PROBLEM TO BE SOLVED: To provide a shape measuring method on a prism array for accurately measuring the prism shapes of the prism array used for a projection screen by using an optical interferometry.
SOLUTION: Particles for diffusing light are deposited on prism surfaces. Thereafter, light beams are projected toward the prism surfaces with the particles deposited thereon. Out of diffused light from the particles, diffused light components that return to the side of the light source of the light beams are used to measure the prism shapes.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于通过使用光学干涉法精确测量用于投影屏幕的棱镜阵列的棱镜形状的棱镜阵列上的形状测量方法。解决方案：用于漫射光的粒子沉积在棱镜表面上。此后，将光束投影到棱镜表面，其上沉积有颗粒。从颗粒散射的光中，使用返回到光束的光源侧的漫射光分量来测量棱镜形状。版权所有（C）2007，JPO＆INPIT

22. 发明专利

JP2007178704A Prism array having diffusion function of light 审中-公开
标题翻译：具有光的扩散功能的主题阵列
公开(公告)号：JP2007178704A
公开(公告)日：2007-07-12
申请号：JP2005376876
申请日：2005-12-28
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , KURATOMI YUHEI , KATAGIRI BAKU , KAWAKAMI TORU
IPC分类号： G03B21/62 , G02B5/02 , G02B5/04 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To set the diffusion angle of light to up-and-down directions to a prescribed range.
SOLUTION: When a screen is composed of a prism array in which many prisms each receiving projector light with a prescribed light incident angle at a light receiving face, thereafter totally reflecting the light at a reflecting face, and emitting the reflected light toward a screen face are formed, the part upon which the projector light is struck in the reflecting face of each prism has a curved face shape.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：将光的上下方向的扩散角设定在规定范围内。解决方案：当屏幕由棱镜阵列组成时，其中每个接收投影仪的许多棱镜在光接收面处以规定的光入射角照射，然后将光完全反射到反射面，并将反射光朝向形成了屏幕面，投影光在其各个棱镜的反射面上被撞击的部分具有曲面形状。版权所有（C）2007，JPO＆INPIT

23. 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

24. 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

25. 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

26. 发明专利

JP2017083793A 画像表示装置审中-公开
公开(公告)号：JP2017083793A
公开(公告)日：2017-05-18
申请号：JP2015215120
申请日：2015-10-30
申请人：本田技研工業株式会社 , Honda Motor Co Ltd , 国立大学法人東北大学 , Tohoku Univ
发明人： KAWAKAMI TORU , SHINOI MUTSUMI , SUZUKI YOSHITO , ARAKI TOSHIYUKI , OHIRA TSUTOMU
IPC分类号： G02B27/01 , B60K35/00
CPC分类号： G02B27/0172 , G02B5/02 , G02B13/16 , G02B27/0101 , G02B27/0176 , G02B2027/0118 , G02B2027/0123 , G02B2027/013 , G02B2027/0159 , G03B21/28
摘要：【課題】従来技術より表示画像同士の明るさが近い表示画像を複数の人に向けて表示させることができる画像表示装置を提供する。【解決手段】画像表示装置は、画像を投影する投影部と、投影部の光軸に対する光軸との接触面が、互いに異なる角度で配置されている複数枚の凹面反射鏡と、を備え、複数枚の凹面反射鏡のうちの第1の凹面反射鏡は、投影部によって投影された画像の少なくとも一部を反射し、画像に基づく第1の像を形成し、複数枚の凹面反射鏡のうちの第2の凹面反射鏡は、投影部によって投影された画像の一部を透過し、画像の一部を反射し、画像に基づく第2の像を形成する。【選択図】図4

27. 发明专利

JP2013120360A Display device 有权
标题翻译：显示设备
公开(公告)号：JP2013120360A
公开(公告)日：2013-06-17
申请号：JP2011269413
申请日：2011-12-08
申请人： Sharp Corp , シャープ株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , SUZUKI YOSHITO , KAWAKAMI TORU , SEKIYA KAZUO , NISHIZAWA MASAHIRO , ISHINABE TAKAHIRO , KATAGIRI BAKU , EBARA KATSUNORI , HASHIMOTO YOSHIHIRO , ITOU YASUTAKA , ISHII YUTAKA
IPC分类号： G02F1/13357 , F21S2/00 , F21Y101/02 , G02F1/1335 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To realize a liquid crystal display device having a thin thickness and high image quality of a display image while maintaining high light-use efficiency.SOLUTION: A liquid crystal display device includes a liquid crystal display panel 3, and a plurality of light sources 4. A plurality of slant surfaces 5b and the plurality of light sources 4 are provided at predetermined intervals so that light beams having wavelength ranges different from each other, emitted from the light sources 4 are led to picture elements different from each other in respective pixels of the liquid crystal display panel 3 through the slant surfaces 5b and an MLA 9, respectively, and respective shortest distances from the one certain light source 4 to the MLA 9 positioned right above the respective slant surfaces 5b through the respective slant surfaces 5b are within predetermined ranges, respectively.
摘要翻译：要解决的问题：为了实现具有薄的厚度和显示图像的高图像质量的液晶显示装置，同时保持高的光利用效率。解决方案：液晶显示装置包括液晶显示面板3和多个光源4.多个倾斜表面5b和多个光源4以预定间隔设置，使得具有波长的光束通过倾斜表面5b和MLA9，从光源4发射的范围分别被引导到液晶显示面板3的各个像素中的各个像素彼此不同的图像元素，并且距离一个的最短距离位于相应倾斜表面5b正上方通过相应倾斜表面5b的MLA 9的某些光源4分别在预定范围内。版权所有（C）2013，JPO＆INPIT

28. 发明专利

JP2013068651A Image display device 审中-公开
标题翻译：图像显示设备
公开(公告)号：JP2013068651A
公开(公告)日：2013-04-18
申请号：JP2011205015
申请日：2011-09-20
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： KAWAKAMI TORU , SUZUKI YOSHITO , UCHIDA TATSUO
IPC分类号： G03B21/14 , G02B3/00 , G02B3/08 , G02B13/24 , G02B17/08 , G02B19/00 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide an image display device having a narrow viewing angle capable of contributing to energy saving by eliminating waste of energy caused by having a wider viewing angle than required.SOLUTION: An image display device includes: a convex lens means 12 with a focal distance f; a projection optical system 10 having an iris surface located at a distance of nearly a from an incident surface provided on an incident surface 14 side of the convex lens means 12; and a transmission type image display means (liquid crystal panel) 8 capable of forming an image on the incident surface 14. A spatial image-forming iris surface 18 is formed at a distance b satisfying an equation of (1/a)+(1/b)=1/f from an outgoing surface 16 of the convex lens means 12.
摘要翻译：要解决的问题：提供具有窄视角的图像显示装置，其能够通过消除由于具有比所需的更宽的视角而引起的能量浪费而有助于节能。解决方案：图像显示装置包括：具有焦距f的凸透镜装置12; 投影光学系统10具有位于与凸透镜装置12的入射表面14侧上的入射表面几乎相距一定距离的光阑表面; 以及能够在入射表面14上形成图像的透射型图像显示装置（液晶面板）8。以满足式（1 / a）+（1）的等式的距离b形成空间成像光圈表面18 / b）=凸出透镜装置12的出射表面16的1 / f。版权所有：（C）2013，JPO＆INPIT

29. 发明专利

JP2012151081A Lighting device, and display device 有权
标题翻译：照明设备和显示设备
公开(公告)号：JP2012151081A
公开(公告)日：2012-08-09
申请号：JP2011048340
申请日：2011-03-04
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 , SUZUKI TOMOAKI , OKUYAMA KENTARO , SHINKAI SHOGO , HIRUKOI AKIRA , SATO HARUMI , MIZUNO MAMORU , IKEDA MASAHIRO
IPC分类号： F21S2/00 , F21Y101/02 , F21Y103/00 , G02F1/13
CPC分类号： G02F1/133615 , G02B6/005 , G02B6/0051 , G02B6/0055 , G02F1/1334 , G02F1/134336
摘要： PROBLEM TO BE SOLVED: To provide a lighting device that can further uniformalize a long-wavelength component of illumination light inside a plane and provide a display device.SOLUTION: Inside a light modulation element 30 mounted on a light guide plate 10, there are provided particulates 34B which have an optical anisotropic property and respond to an electric field and a bulk 34A which has the optical anisotropic property and does not respond to the electric field. The bulk 34A has a strip-shaped structure and an average strip-shaped structural size in a short axial direction is 0.05 μm or more and 10 μm or less.

30. 发明专利

JP2010039037A Micro optical system screen 审中-公开
标题翻译：微光系统屏幕
公开(公告)号：JP2010039037A
公开(公告)日：2010-02-18
申请号：JP2008199438
申请日：2008-08-01
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , KAWAKAMI TORU
IPC分类号： G02B3/00 , G02B3/06 , G02B5/02 , G03B21/62 , G03B21/625
摘要： PROBLEM TO BE SOLVED: To provide a micro optical system screen capable of widening a left and right viewing angle, retaining total reflection conditions and keeping the appropriate thickness of a screen even when a black mask (BM) is applied to the emission side with a proper BM ratio.
SOLUTION: Any one of the following three optical elements is employed for an incident surface side surface shape of a diffusion film: a micro composite optical system element prepared by combining a cylindrical aspherical condenser lens 5, a cylindrical hemispherical lens 6 and a condensing prism 8 for longitudinal condensing; a micro composite optical system element prepared by combining an aspherical condenser lens 6, a spherical lens and a total reflection type cylindrical elliptic surface; and a micro optical system element which takes in light from a first lens incident surface having an opening and a focal distance different from each other in longitudinal and lateral directions of the element and totally reflects the light at a second lens total reflection surface having a curved shape made by sliding and shifting a non-axial curved part of a reflected effective focal length (REFL) having a focus near the incident surface along an axial curved part of a parent focal length (PFL) having a focus near the incident surface.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够扩大左视角和右视角的微光学系统屏幕，保持全反射条件并保持屏幕的适当厚度，即使当将黑色掩模（BM）施加到发射侧面具有适当的BM比率。解决方案：以下三种光学元件中的任何一种用于扩散膜的入射表面侧表面形状：通过组合圆柱形非球面聚光透镜5，圆柱形半球透镜6和聚光棱镜8用于纵向冷凝; 通过组合非球面聚光透镜6，球面透镜和全反射型圆柱形椭圆面而制备的微复合光学系统元件; 以及微型光学系统元件，其从元件的纵向和横向方向上具有开口和焦距彼此不同的第一透镜入射表面吸收光，并将光完全反射到具有弯曲的第二透镜全反射表面通过沿具有焦点靠近入射表面的父焦距（PFL）的轴向弯曲部分滑动并移动具有聚焦在入射表面附近的焦点的反射有效焦距（REFL）的非轴向弯曲部分而形成的形状。版权所有（C）2010，JPO＆INPIT

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