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1. 发明专利

JP2012226237A Reflective front screen 有权
标题翻译：反光幕
公开(公告)号：JP2012226237A
公开(公告)日：2012-11-15
申请号：JP2011095823
申请日：2011-04-22
申请人： Tohoku Univ , Seiko Epson Corp , セイコーエプソン株式会社 , 国立大学法人東北大学
发明人： UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU , HASHIZUME TOSHIAKI , SHINDO HIROYUKI , ARAKAWA OSAMU
IPC分类号： G03B21/60 , G02B5/02 , G02B5/08
CPC分类号： G03B21/60 , G03B21/602
摘要： PROBLEM TO BE SOLVED: To narrow a region where a display image is disturbed by external light existing in the region, on the front side of a reflective front screen, and to more widen a region where external light existing in the region has no bad influence on the display image, in a room where the screen is installed.SOLUTION: Inclinations θa1 to θan of mirror formation areas 8 relative to a screen normal are made different so that the inclination angles of the mirror formation areas 8 nearer to a projector are larger than those of the mirror formation areas 8 farther from the projector within a cross section orthogonal to the mirror formation areas 8 in a screen surface.
摘要翻译：要解决的问题：为了缩小显示图像被存在于该区域中的外部光，在反射前屏幕的前侧上而被干扰的区域，并且更加扩大存在于该区域中的外部光的区域在屏幕安装的房间中对显示图像没有不良影响。反射镜形成区域8相对于屏幕法线的倾角θa1〜θan不同，使得反射镜形成区域8更靠近投影仪的倾斜角度大于镜面形成区域8的倾斜角度投影仪在与屏幕表面中的镜形成区域8正交的横截面内。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012133081A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2012133081A
公开(公告)日：2012-07-12
申请号：JP2010284265
申请日：2010-12-21
申请人： Seiko Epson Corp , Tohoku Univ , セイコーエプソン株式会社 , 国立大学法人東北大学
发明人： ARAKAWA OSAMU , SHINDO HIROYUKI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/14 , G02B5/08 , G02B5/09 , G02F1/13 , G03B21/00 , G03B21/60
摘要： PROBLEM TO BE SOLVED: To provide a screen capable of displaying a projected image suppressing image unevenness by reflecting projection light in an appropriately dispersed state even when the projection light is locally made incident with a large inclination angle, and further to provide a projection system using the screen.SOLUTION: In a light reflecting layer 2, since a plurality of prism sections 2a determining inclination angles of individual reflecting surfaces PS of a plurality of light reflecting sections PP and having sawtooth shapes as viewed in a cross-section view are disposed on a substrate 1 in a concentric circular arc shape so as to be corresponding to projection light PL made incident, even the projection light PL being made incident with a large inclination angle can be folded as reflected light RL to a front surface side by using a principal surface 1a of the substrate 1 as reference, and a value of an incident angle γ to a light control layer 3 can be a value within a first angular region ω. Accordingly, the reflected light RL passing through the light control layer 3 is emitted in an appropriately dispersed state and can display a projected image suppressing image unevenness.
摘要翻译：要解决的问题：即使当投影光局部地以大的倾斜角入射时，提供一种能够通过将投射光反射在适当分散的状态下来显示抑制图像不均匀性的屏幕，并且还提供投影系统使用屏幕。解决方案：在光反射层2中，由多个棱镜部分2a确定多个光反射部分PP的各个反射表面PS的倾斜角度，并且在横截面视图中看到具有锯齿形状的棱镜部分2a设置在即使以大倾斜角入射的投射光PL，即使入射的投影光PL也能够对应于同时圆弧形状的基板1，可以通过使用主体将反射光RL折射到前表面侧基板1的表面1a作为参考，并且与光控制层3的入射角γ的值可以是第一角度范围ω内的值。因此，通过光控制层3的反射光RL以适当的分散状态被发射，并且可以显示投影图像抑制图像不均匀性。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2013088543A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2013088543A
公开(公告)日：2013-05-13
申请号：JP2011227653
申请日：2011-10-17
申请人： Seiko Epson Corp , セイコーエプソン株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： ARAKAWA OSAMU , SHINDO HIROYUKI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/14 , G02B5/02 , G03B21/60
CPC分类号： G03B21/60 , G03B21/28
摘要： PROBLEM TO BE SOLVED: To provide a screen which allows an observation distance to be adjusted while brightness of an image is being maintained, and further to provide a projection system using the screen.SOLUTION: In an optical control layer 3 of a screen 10, a first angle region ω which determines diffusion distribution of reflected light is set to be different for different positions on the screen 10 regarding a control direction D1 for performing diffusion control of light. On account of this, by adjusting diffusion distribution of image light emitted from a surface of the screen 10, in response to a position on the screen 10, to be greatly inclined toward a lower side as the position is closer to an upper end UE side and to be greatly inclined toward an upper side as the position is closer to a lower end BE side, for example, a direction in which the image light is diffused and emitted is set to correspond to a position of an observer assumed with magnitude of an angle range to be diffused remaining 30° without any change in angle, a projection image can be observed while brightness of an image is being maintained and an observation distance L can be adjusted to be shortened.
摘要翻译：要解决的问题：提供一种允许在保持图像的亮度的同时调整观察距离的屏幕，并且还提供使用该屏幕的投影系统。解决方案：在屏幕10的光学控制层3中，确定反射光的扩散分布的第一角度区域ω被设置为对于用于执行扩散控制的控制方向D1的屏幕10上的不同位置不同光。因此，通过调节从屏幕10的表面发射的图像光的扩散分布，响应于屏幕10上的位置，随着位置更靠近上端UE侧而大大向下倾斜并且由于位置更靠近下端BE侧而大致倾向于上侧，例如，将图像光漫射和发射的方向设置为对应于以大小为大小的假设的观察者的位置要扩散的角度范围保持30°而没有任何角度变化，可以在保持图像的亮度并且可以缩短观察距离L的同时观察投影图像。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012128308A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2012128308A
公开(公告)日：2012-07-05
申请号：JP2010281341
申请日：2010-12-17
申请人： Seiko Epson Corp , Tohoku Univ , セイコーエプソン株式会社 , 国立大学法人東北大学
发明人： ARAKAWA OSAMU , OTA NAOSHI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/00 , G02B5/02 , G02B5/08 , G03B21/14 , G03B21/60
摘要： PROBLEM TO BE SOLVED: To enable appropriate diffusion in two directions different from each other and project a bright projection image with less unevenness by using a relatively simple structure.SOLUTION: An anisotropic light diffusion layer 4 has a property of diffusing projection light PL and reflection light RL in an X direction, and an optical control layer 3 has a property of diffusing the reflection light RL in a Y direction. In this case, diffusion by the anisotropic light diffusion layer 4 is in a wider range. Thus, a view angle can be widened in the X direction, in particular in the longitudinal direction for an observer EY, in a properly diffused state by using a relatively simple structure. Moreover, because a light reflection layer 2 has light reflection parts PP on a plurality of prism parts 2a having a saw teeth shape in cross-section, a proper diffusion state can be secured and a bright projection image with uneven brightness or illuminance suppressed can be projected by folding back the projection light PL as the reflection light RL having a desired angle surely diffusing it.
摘要翻译：要解决的问题：为了使得能够在彼此不同的两个方向上进行适当的扩散，并且通过使用相对简单的结构投射具有较小不均匀性的明亮的投影图像。解决方案：各向异性光扩散层4具有在X方向上扩散投射光PL和反射光RL的性质，并且光学控制层3具有使反射光RL在Y方向上扩散的性质。在这种情况下，各向异性光扩散层4的扩散在更宽的范围内。因此，通过使用相对简单的结构，能够以适当的扩散状态在X方向，特别是纵观方向上对视角加宽。此外，因为光反射层2在具有锯齿形状的多个棱镜部分2a上具有光反射部分PP，所以可以确保适当的扩散状态，并且可以抑制亮度或照度不均的亮投影图像通过将投影光PL折回作为具有期望角度的反射光RL来确定地扩散它来投射。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2008083678A Optical element, manufacturing method therefor and projector 有权
标题翻译：光学元件及其制造方法及投影机
公开(公告)号：JP2008083678A
公开(公告)日：2008-04-10
申请号：JP2007162297
申请日：2007-06-20
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： ENDO TAKASHI , HASHIZUME TOSHIAKI
IPC分类号： G02B5/30 , G03B21/00
CPC分类号： G03B21/14 , G02B5/3083 , G03B21/005
摘要： PROBLEM TO BE SOLVED: To provide an optical element, such as high-accuracy retardation element where a thin film-like birefringent material is stuck and to provide its manufacturing method. SOLUTION: A very thin retardation plate 14 is held between a first substrate 11 and a second substrate 12 via adhesive layers 16, 17. In this case, a flat curved face 14d at a boundary between a 1st adhesive layer 16 and the retardation plate 14 and a flat curved face 14e at a boundary between a 2nd adhesive layer 17 and the retardation plate 14 cancel out each other, and consequently, production of refractive force as a lens can be prevented in the retardation plate 14. Thus the phenomenon that light passing through a phase optical element 10 of a flat-shape, as a whole, will condenses or disperses according to the refraction difference in a topological optical element 10 can be suppressed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学元件，例如粘合薄膜状双折射材料的高精度相位差元件，并提供其制造方法。解决方案：非常薄的延迟板14通过粘合剂层16,17保持在第一基板11和第二基板12之间。在这种情况下，在第一粘合剂层16和第一粘合剂层16之间的边界处的平坦弯曲面14d 延迟板14和第二粘合剂层17与相位差板14之间的边界处的平坦曲面14e彼此抵消，因此可以在相位差板14中防止产生作为透镜的折射力。因此，可以抑制通过平面状的相位光学元件10的光，因为整体上将会根据折射差聚集或分散在拓扑学的光学元件10中。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008076481A Projector 审中-公开
标题翻译：投影机
公开(公告)号：JP2008076481A
公开(公告)日：2008-04-03
申请号：JP2006252484
申请日：2006-09-19
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YANAI HIROAKI , HASHIZUME TOSHIAKI , SEKIGUCHI KASHO
IPC分类号： G03B21/14 , G02B5/30 , G02F1/13 , G02F1/1335 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a projector having excellent light resistance and heat resistance and long service life and capable of restraining a contrast decrease caused by the effect of return light arising in a liquid crystal panel or the like. SOLUTION: A first polarization element 42c is disposed in a position where it is rotated around x axis as viewed from a paper surface. This makes it possible for the liquid crystal panel 41c and the first polarization element 42c to be disposed so as not to be parallel to each other, while minimizing a change in the cyclic pitch width of a recessed-and-projecting structure of the first polarization element 42c with respect to incident light and a change in the shape of a multi-layer structure. Accordingly, the component of return light can be discharged to the outside of an optical path. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的耐光性和耐热性以及使用寿命长的投影机，并能够抑制由于在液晶面板等中产生的返回光的影响引起的对比度降低。解决方案：第一偏振元件42c设置在从纸表面观察时围绕x轴旋转的位置。这使得可以将液晶面板41c和第一偏振元件42c布置成彼此不平行，同时最小化第一偏振的凹凸投影结构的循环间距宽度的变化元件42c相对于入射光和多层结构的形状的改变。因此，返回光的分量可以被排出到光路的外部。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008051999A Manufacturing method of optical element and projector 审中-公开
标题翻译：光学元件和投影仪的制造方法
公开(公告)号：JP2008051999A
公开(公告)日：2008-03-06
申请号：JP2006227459
申请日：2006-08-24
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YANAI HIROAKI , HASHIZUME TOSHIAKI
IPC分类号： G02B5/30 , G02F1/13 , G02F1/1335 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of optical element capable of precisely cutting a polarizing film into a predetermined size, with respect to the manufacturing method of optical element for manufacturing an optical element having such a structure that optical elements are respectively attached to both surfaces of a polarizing layer. SOLUTION: The manufacturing method of optical element comprises: a support film attachment process for attaching support films 50, 60 onto a polarizing film 40 constituting the polarizing layer; a polarizing film cutting process for cutting the polarizing film 40 in a predetermined size while attaching the support films 50, 60 onto both surfaces of the polarizing film 40; a first stripping process for stripping the support film 50 from the polarizing film 40; a first optical element attaching process for attaching a light-transmissive substrate 20 onto one side surface of the polarizing film 40; a second stripping process for stripping the support film 60 from the polarizing film 40; and a second optical element attaching process for attaching a light-transmissive substrate 30 onto the other side surface of the polarizing film 40, in the order. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够将偏振膜精确地切割成预定尺寸的光学元件的制造方法，关于用于制造具有光学元件的结构的光学元件的光学元件的制造方法分别连接到偏振层的两个表面。解决方案：光学元件的制造方法包括：将支撑膜50,60附接到构成偏振层的偏振膜40上的支撑膜附着工艺; 将偏振膜40以预定尺寸切割，同时将支撑膜50,60连接到偏振膜40的两个表面上的偏光膜切割工艺; 用于从偏振膜40剥离支撑膜50的第一剥离工艺; 用于将透光性基板20安装在偏振膜40的一个侧面上的第一光学元件附着工序; 用于从偏振膜40剥离支撑膜60的第二剥离工艺; 以及将透光性基板30依次安装在偏光膜40的另一侧面上的第二光学元件附着工序。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007227206A Light source device and projector 审中-公开
标题翻译：光源设备和投影机
公开(公告)号：JP2007227206A
公开(公告)日：2007-09-06
申请号：JP2006047890
申请日：2006-02-24
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： AKIYAMA KOICHI , HASHIZUME TOSHIAKI
IPC分类号： F21S2/00 , F21V7/00 , F21Y101/00 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a light source device capable of improving utilization efficiency of light from a tube ball part.
SOLUTION: This light source device 110 is provided with a light emitting tube 20 having the tube ball part 30 with a pair of built in electrodes 42, 52 and a pair of sealing parts 40, 50 extending both sides of the tube ball 30 and having a shape that the tube ball part 30 and a pair of the sealing parts 40, 50 have been smoothly connected, a reflector 10 which is arranged and installed on the sealing part 40 side and in which the light from the tube ball part 30 is reflected toward the illuminated region side, and a sub-mirror 60 which is arranged and installed on the sealing part 50 side and in which the light from the tube ball part 30 is reflected toward the tube ball part 30. The shape of the inner face of the sub-mirror 60 has a shape of oval face. Then, when θ expresses the angle made by a straight line A which passes through an inflection point Q existing between the tube ball part 30 and the sealing part 50 at the outer face of the light emitting tube 20 and passes through the intermediate point P of the pair of the electrodes 42, 52, and by an illumination optical axis 100ax, and when K expresses a conical constant of the oval face, in the case of θ≥50°, K is 0
摘要翻译：解决的问题：提供能够提高来自管球部的光的利用效率的光源装置。解决方案：该光源装置110设置有具有管球部30的发光管20，该管球部30具有一对内置电极42,42和一对延伸管球两侧的密封部40,50 30，并且具有管球部30和一对密封部40,50平滑连接的形状的反射器10，其配置并安装在密封部40侧，并且来自管球部的光 30被反射到照明区域侧，副镜60布置并安装在密封部50侧，并且来自管球部30的光被反射到管球部30。副镜60的内表面具有椭圆形的形状。然后，当θ表示通过存在于发光管20的外表面处的管球部30和密封部50之间的拐点Q的直线A所产生的角度并通过中间点P 一对电极42,42和照明光轴100ax，当K表示椭圆面的圆锥形常数时，在θ≥50°的情况下，K为0

9. 发明专利

JP2007213832A Light source device and projector 有权
标题翻译：光源设备和投影机
公开(公告)号：JP2007213832A
公开(公告)日：2007-08-23
申请号：JP2006029453
申请日：2006-02-07
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YAMAUCHI KENTARO , HASHIZUME TOSHIAKI
IPC分类号： F21S2/00 , F21V7/00 , F21V29/00 , F21Y101/00 , G03B21/00 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a light source device and a projector capable of aiming at long life. SOLUTION: The light source device 10 is provided with a light emission tube, a light source lamp 11 having a pair of electrodes arranged in a discharging space of the light emission tube, and a main reflection mirror 12 of which cross section is extended in almost concave-shape, reflecting the light flux emitted from the light source lamp 11. A non-utilized light reflection member 16, having a non-utilized light reflection face 1621, reflecting non-utilized light R3 which is included in the light flux emitted from the light source lamp 11, and coming off from the main reflection mirror 12, is arranged at light emission front side of the main reflection mirror 12. The non-utilized light reflection face 1621 is constituted of an ellipsoid of revolution, of which the position of a first focus F3 is located at central position O of an arc image of the light source lamp 11, reflecting non-utilized light R3 which is emitted from the light source lamp 11 and coming off from the main reflection mirror 12, condensing the non-utilized light on a second focus F4, and guiding it to outside of the light source device 10. It is set so that the light source lamp 11 and the main reflection mirror are located at outside of a space S joining the second focus F4 and the non-utilized light reflection face 1621. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够长寿命的光源装置和投影仪。解决方案：光源装置10设置有发光管，具有布置在发光管的放电空间中的一对电极的光源灯11和横截面为主反射镜12的主反射镜12 延伸成几乎凹的形状，反射从光源灯11发射的光通量。未使用的光反射部件16具有未使用的光反射面1621，反射包含在光中的不使用光R3 从主光源11射出并从主反射镜12脱落的光束配置在主反射镜12的发光正面。未使用的光反射面1621由旋转椭圆形构成第一焦点F3的位置位于光源灯11的圆弧图像的中心位置O处，反射从光源灯11发射并从主反射镜脱离的未使用光R3 将未使用的光聚焦在第二焦点F4上，并将其引导到光源装置10的外部。其设置使得光源灯11和主反射镜位于空间的外侧 S连接第二焦点F4和未使用的光反射面1621.版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006113539A Light source device and projector 审中-公开
标题翻译：光源设备和投影机
公开(公告)号：JP2006113539A
公开(公告)日：2006-04-27
申请号：JP2005182336
申请日：2005-06-22
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： TAKEZAWA TAKESHI , AKIYAMA KOICHI , HASHIZUME TOSHIAKI
IPC分类号： G03B21/14 , F21S2/00 , F21V7/00 , F21Y101/00
CPC分类号： G03B21/2026 , G03B21/2066
摘要： PROBLEM TO BE SOLVED: To provide a light source device and a projector realizing the improvement of the light utilization efficiency of a light beam radiated from a light emitting portion. SOLUTION: In the light source device 10, relations of θ1≤Tan -1 (Hd/(2f1)) and T1 COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种光源装置和投影机，其实现了从发光部照射的光束的光利用效率的提高。解决方案：在光源装置10中，确定θ1≤Tan -1 （Hd /（2f1））和T1

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