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1. 发明专利

JP2010282219A Fresnel optical element and projection display device 有权
标题翻译： FRESNEL光学元件和投影显示设备
公开(公告)号：JP2010282219A
公开(公告)日：2010-12-16
申请号：JP2010169276
申请日：2010-07-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI HIROSHI , ENDO TAKAO , SHIKAMA SHINSUKE , TERAMOTO KOHEI
IPC分类号： G03B21/62 , G02B3/08 , G03B21/00 , G03B21/10 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a Fresnel optical element for avoiding a situation that light rays not passing through a refractive surface but reflected thereby exit as unnecessary light to the visual field direction of an observer. SOLUTION: The Fresnel optical element is constituted so that an angle τ' of a non-incident surface 12c out of a refractive surface 12a of a Fresnel prism 12 to a reflective surface 12b is different from a forward end angle τ of the prism, the non-incident surface being the surface to which light rays from a projector 1 do not directly enter by being intercepted by other Fresnel prisms 12. By this, for example, the situation that light rays not passing through the refractive surface 12a but reflected thereby exit as unnecessary light to the visual field direction of the observer can be avoided. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种菲涅耳光学元件，用于避免不通过折射表面但被反射的光线作为观察者的视场方向的不必要的光离开的情况。解决方案：菲涅尔光学元件被构造成使得从菲涅耳棱镜12的折射表面12a到反射表面12b的非入射表面12c的角度τ'不同于棱镜，非入射表面是来自投影仪1的光线不被其它菲涅尔棱镜12截取的直接进入的表面。例如，例如，光线不穿过折射表面12a但是因此可以避免反射到观察者的视场方向上的不必要的光。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010250351A Fresnel optical element and projection display device 有权
标题翻译： FRESNEL光学元件和投影显示设备
公开(公告)号：JP2010250351A
公开(公告)日：2010-11-04
申请号：JP2010169295
申请日：2010-07-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI HIROSHI , ENDO TAKAO , SHIKAMA SHINSUKE , TERAMOTO KOHEI
IPC分类号： G02B3/08 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a Fresnel optical element that can avoid a situation in which the light rays which not pass through a refractive surface but are reflected thereby exit as unwanted light, to the visual filed direction of an observer. SOLUTION: The projection display device is arranged, such that an angle τ' of a non-incident surface 12c in a refractive surface 12a of a Fresnel prism 12 to a reflective surface 12b, is different from a forward-end angle τ of the prism, the non-incident surface 12c being the surface to which light rays from a projector 1 are not directly radiated, by being intercepted by other Fresnel prisms 12. According to the arrangement, a situation where the light rays which do not pass through the refractive surface 12a but are reflected thereby exit, as unwanted light to the visual field direction of the observer, can be avoided. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种菲涅耳光学元件，其可以避免不通过折射表面而被反射的光线因为不想要的光而退出到观察者的视觉方向的情况。解决方案：投影显示装置被布置成使得菲涅耳棱镜12的折射表面12a与反射表面12b的非入射表面12c的角度τ'不同于前端角度τ 通过被其他菲涅耳棱镜12截获，非入射面12c是来自投影仪1的光线未被直接照射的表面。根据该结构，不通过的光线的情况通过折射表面12a而被反射，因此可以避免对观察者的视场方向的不需要的光。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2005017136A Optical system evaluator 审中-公开
标题翻译：光学系统评估
公开(公告)号：JP2005017136A
公开(公告)日：2005-01-20
申请号：JP2003183230
申请日：2003-06-26
申请人： Jeneshia:Kk , Mitsubishi Electric Corp , 三菱電機株式会社 , 株式会社ジェネシア
发明人： ENDO TAKAO , SUZUKI HIROSHI , SHIKAMA SHINSUKE , TERAMOTO KOHEI , TAKEYAMA NORIHIDE , IKEDA YUJI
IPC分类号： G01M11/02 , G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide an optical system evaluator which evaluates the image forming performance of an optical system itself for showing an image with a configuration of limited elements.
SOLUTION: The evaluator comprises a position detection type optical detector 22 which receives an image formed with limited elements serving as optical sources to take an image when the image is projected on the detector 22, and a data analyzer 2 which eliminates the influence of the limited elements from the image taken by the detector 22, thus evaluating the blur distribution being the image forming performance of an optical system itself, based on the image after eliminating the influence.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种评估光学系统本身的图像形成性能以显示具有有限元件的构造的图像的光学系统评估器。解决方案：评估器包括位置检测型光学检测器22，其接收由有限元素形成的图像作为光源以在图像投影在检测器22上时拍摄图像;以及数据分析器2，其消除了影响从由检测器22拍摄的图像中的有限元素，基于消除影响之后的图像来评估作为光学系统本身的图像形成性能的模糊分布。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2012008583A Lens molding die manufacturing method and lens manufacturing method 审中-公开
标题翻译：镜头模具制造方法和镜头制造方法
公开(公告)号：JP2012008583A
公开(公告)日：2012-01-12
申请号：JP2011171069
申请日：2011-08-04
申请人： Dainippon Printing Co Ltd , Mitsubishi Electric Corp , 三菱電機株式会社 , 大日本印刷株式会社
发明人： SUZUKI HIROSHI , TERAMOTO KOHEI , ASHIZAKI YOSHIHIRO , SHIKAMA SHINSUKE , SEKIGUCHI HIROSHI , RYUGO TADAHIKO , KOJIMA KUNIKO
IPC分类号： G02B3/00 , B29C33/38 , B29C39/24 , B29C39/26 , B29L11/00 , G02B3/08 , G03B21/14 , G03B21/62 , G03B21/625
CPC分类号： G03B21/625 , G02B3/08
摘要： PROBLEM TO BE SOLVED: To provide a lens molding die manufacturing method by which manufacturing of lens molding dies with ordinary cutting tools is facilitated and the manufacturing precision of lens molding dies can be enhanced.SOLUTION: A lens molding die manufacturing method includes, repetition as many times as a prescribed number of pitches: a main unit prism part cutting step ST2 of cutting an inverted shape of a totally reflecting type prism part with a cutting tool B into a pitch to be cut; and a subunit prism part cutting step ST7 of cutting an inverted shape of a refracting prism part with the cutting tool B into a pitch to be cut, and placing a plane which is an extension of a first plane of incidence in the inverted shape of the refracting prism part such that it passes through a trough line formed by the pitch to be cut and a pitch adjoining on the Fresnel peripheral side of the pitch to be cut or is nearer to a light emission side than is the trough line.
摘要翻译：解决的问题：提供一种透镜成型模具的制造方法，通过该方法制造具有普通切削工具的透镜成型模具，并且能够提高透镜成型模具的制造精度。解决方案：一种透镜成型模具的制造方法，其特征在于，以规定数量的间距重复多次：主单元棱镜部切割工序ST2，其将切割工具B的全反射型棱镜部的倒置形状切断成要削减的节距以及用切割工具B将折射棱镜部分的倒置形状切割成待切割的间距的子单元棱镜部分切割步骤ST7，并且将作为第一入射面的延伸部分的平面放置在折射棱镜部分，使得其穿过由待切割的间距形成的槽线，并且在要切割的间距的菲涅耳周边侧邻接，或者比槽线更靠近发光侧。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010181909A Fresnel optical element and projection display device 有权
标题翻译： FRESNEL光学元件和投影显示设备
公开(公告)号：JP2010181909A
公开(公告)日：2010-08-19
申请号：JP2010111004
申请日：2010-05-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI HIROSHI , ENDO TAKAO , SHIKAMA SHINSUKE , TERAMOTO KOHEI
IPC分类号： G02B3/08 , G03B21/10 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To obtain a Fresnel optical element that can avoid such a situation that light rays not passing through a refractive surface but reflected thereby are emitted, as unnecessary light, toward observer's visual field. SOLUTION: The Fresnel optical element is formed such that an angle τ' of a non-incident surface 12c in a refractive surface 12a of a Fresnel prism 12 to a reflective surface 12b is different from a forward end angle τ of the prism, the non-incident surface 12c being the surface to which light rays from a projector 1 do not directly enter by being intercepted by other Fresnel prisms 12. Thus, such a situation that the light rays not passing through the refractive surface 12a but reflected thereby are emitted, as the unnecessary light, toward the observer's visual field can be avoided. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够避免不通过折射表面但被其反射的光线的光线作为不必要的光朝向观察者的视野发射的菲涅尔光学元件。菲涅耳光学元件形成为使得菲涅耳棱镜12的折射表面12a与反射表面12b之间的非入射表面12c的角度τ'与棱镜的前端角度τ不同非入射面12c是投影仪1的光线不被其他菲涅尔棱镜12截取的直接进入的面。因此，光线不通过折射面12a而被反射的情况被发射，因为不必要的光朝向观察者的视野被避免。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2007328359A Transmission-type screen and projection-type display device 有权
标题翻译：传输型屏幕和投影型显示设备
公开(公告)号：JP2007328359A
公开(公告)日：2007-12-20
申请号：JP2007196366
申请日：2007-07-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHIKAMA SHINSUKE , SUZUKI HIROSHI , TERAMOTO KOHEI , MIYATA AKIHISA
IPC分类号： G03B21/62 , G02B3/00 , G02B3/06 , G02B3/08 , G02B5/02 , G02B5/08 , G03B21/00 , G03B21/10
摘要： PROBLEM TO BE SOLVED: To solve the problems wherein double images or ghost images are superimposed on a normal projected image and displayed.
SOLUTION: The display device is equipped with a refraction total-reflection Fresnel lens plate 10c that imparts optical effects, such as refraction and reflection of the refraction total-reflection Fresnel face, formed on the entrance face to a projection light flux 50 and allows the flux to exit from an exit face 15; a stray light removing plate 20, that comprises a condenser lens array 21 having unit lenses arranged in a periodical structure in a vertical direction on the entrance face of a transmissive substrate 22, and black stripes comprising transparent portions 201 near the condensation points of the unit lenses and opaque portions 200 disposed around the condensation points of the unit lenses, alternately and periodically arranged in a vertical direction on the exit face of the transmissive substrate 22; and an imaging display plate 30 that comprises a lenticular lens 31, having unit lenses arranged periodically in a horizontal direction at the entrance face of a transmissive substrate 32 which causes light flux to scatter by its scattering characteristics.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决双重图像或重影图像叠加在正常投影图像上并显示的问题。解决方案：显示装置配备有折射全反射菲涅耳透镜板10c，其将形成在入射面上的折射和反射的折射全反射菲涅耳面的光学效果赋予投影光通量50 并允许助熔剂从出射面15离开; 杂散光去除板20，其包括聚光透镜阵列21，该聚光透镜阵列21具有在透射基板22的入射面上沿垂直方向布置的单位透镜，以及黑色条纹，其包括在该单元的冷凝点附近的透明部分201 透镜和不透明部分200设置在单元透镜的凝结点周围，在透光基板22的出射面上沿垂直方向周期性布置; 以及包括双凸透镜31的成像显示板30，其具有在透射基板32的入射面处沿水平方向周期性地布置的单位透镜，其透射散射特性使光通量散射。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2011128639A Speckle removing light source and lighting device 有权
标题翻译：分离光源和照明装置
公开(公告)号：JP2011128639A
公开(公告)日：2011-06-30
申请号：JP2011013645
申请日：2011-01-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , HIRANO YOSHIHITO , SAKAI KIYOHIDE , IMASHIRO MASAO , SHIKAMA SHINSUKE , SUZUKI JIRO , ENDO TAKAO , TERAMOTO KOHEI , SHIBUE SHIGENORI
IPC分类号： G02B27/48 , G02F1/01 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To obtain a speckle removing light source that can remove speckle by using a laser beam, the wavelength of which is changed temporally.
SOLUTION: The speckle removing light source includes: a light source for output of a laser beam, the vertical mode of which is a single mode; a light frequency modulating means for changing the wavelength of a laser beam; a multimode optical fiber, which is long in its longitudinal direction and bent; and at least one or more condenser lenses for guiding a laser beam to the optical fiber. The condenser lens converts the condensing size of a laser beam into the size substantially equal to the size of the core diameter of the optical fiber, and also converts the number of aperture of the laser beam into the number substantially equal to the number of aperture that enables the transmission of the optical fiber. In the optical fiber, at least two or more modes are provided for light, light beams to the highest order mode from a basic mode, which are different from each other in transmission time amplified by the number of reflections within the optical fiber, are superposed in a space distribution at the emission end face, and a part including an end face, from which at least the light of the optical fiber is output, and the core outside diameter shape of a cross-section are approximately polygonal.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：获得可以通过使用激光束去除斑点的斑点去除光源，其波长在时间上改变。解决方案：除斑光源包括：用于输出激光束的光源，其垂直模式是单模式; 用于改变激光束的波长的光频率调制装置; 多模光纤，其长度方向长，弯曲; 以及用于将激光束引导到光纤的至少一个或多个聚光透镜。聚光透镜将激光束的聚光尺寸转换成基本上等于光纤纤芯直径尺寸的尺寸，并将激光束的孔径数量转换成基本等于孔径数使得能够传输光纤。在光纤中，为光提供至少两种以上的模式，从基本模式到达最高阶模式的光束，其在通过光纤内的反射次数放大的透射时间中彼此不同，被叠加在发射端面的空间分布中，以及包括端面的部分，至少输出光纤的光，并且横截面的芯外径形状近似为多边形。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2004247868A Large screen display device 审中-公开
公开(公告)号：JP2004247868A
公开(公告)日：2004-09-02
申请号：JP2003034069
申请日：2003-02-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASHIZAKI YOSHIHIRO , KAMEYAMA MASATOSHI , WADAKA SHUZO , SHIKAMA SHINSUKE , NAKAMURA YASUHISA
IPC分类号： G03B21/00 , G03B21/10 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a large screen display device with which a video on a screen can be appreciated without being affected by installation positions of projectors.
SOLUTION: Upper projectors 2 and 3 projecting video signals on upper face regions 1a and 1b of the screen 1 in acute angles are installed in front upper parts of the screen 1. Lower projectors 4 and 5 projecting the video signals on lower face regions 1c and 1d of the screen in the acute angles are installed in front lower parts of the screen 1. Thus, the large screen display device with which the video on the screen can be appreciated without being affected by the installation positions of the projectors can be obtained.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2012000996A Lens forming mold manufacturing method and lens manufacturing method 审中-公开
标题翻译：镜头成型模具制造方法及镜头制造方法
公开(公告)号：JP2012000996A
公开(公告)日：2012-01-05
申请号：JP2011171064
申请日：2011-08-04
申请人： Dainippon Printing Co Ltd , Mitsubishi Electric Corp , 三菱電機株式会社 , 大日本印刷株式会社
发明人： SUZUKI HIROSHI , TERAMOTO KOHEI , ASHIZAKI YOSHIHIRO , SHIKAMA SHINSUKE , SEKIGUCHI HIROSHI , RYUGO TADAHIKO , KOJIMA KUNIKO
IPC分类号： B29C33/38 , B29C39/24 , B29C39/26 , B29L11/00 , G02B3/00 , G02B3/08 , G03B21/14 , G03B21/62 , G03B21/625
CPC分类号： G03B21/625 , G02B3/08
摘要： PROBLEM TO BE SOLVED: To provide a lens forming mold manufacturing method by which a lens forming mold can be easily manufactured by using a normal cutting tool and the precision in the manufacturing of the lens forming mold can be improved.SOLUTION: The lens forming mold manufacturing method comprises: a main unit-prism portion cutting step ST2 of cutting the lens forming mold in a reversed shape of the refractive type prism portion of a cutting pitch area by using a bite; and a subordinate unit-prism portion cutting step ST3 of cutting the lens forming mold in a reversed shape of the total reflection type prism portion of the cutting pitch area by using the bite B on condition that a plane obtained by extending a total reflection plane in the reversed shape of the total reflection type prism portion intersects a trough line placed between the cutting pitch area P1 and another cutting pitch area adjacent to the cutting pitch area on a Fresnel center side from the cutting pitch area P1 or pass through an area shifted from the trough line toward a light outgoing side, wherein the combination of the main unit-prism portion cutting step and the subordinate unit-prism portion cutting step ST3 is repeatedly performed by a prescribed pitch number.
摘要翻译：要解决的问题：提供一种通过使用普通切削工具可以容易地制造透镜成形模具的透镜成型模具制造方法，并且可以提高制造镜片成型模具的精度。透镜成形模制造方法包括：通过使用咬合将切割间距区域的折射型棱镜部分的反转形状切割成透镜成形模的主单元 - 棱镜部分切割步骤ST2; 以及通过使用咬合B将切割间距区域的全反射型棱镜部分的反射形状切割成透镜成形模的下级单位棱镜部分切割步骤ST3，条件是通过将全反射面延伸得到的平面全反射型棱镜部分的反转形状与切割间距区域P1之间的槽线与从切割间距区域P1的菲涅尔中心侧的切割间距区域相邻的另一切割间距区域相交，或者穿过从槽线朝向光出射侧，其中主单元 - 棱镜部分切割步骤和从属单位 - 棱镜部分切割步骤ST3的组合以规定的间距数重复执行。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2008181155A Image display system 有权
标题翻译：图像显示系统
公开(公告)号：JP2008181155A
公开(公告)日：2008-08-07
申请号：JP2008086819
申请日：2008-03-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI HIROSHI , TERAMOTO KOHEI , SHIKAMA SHINSUKE , WADAKA SHUZO
IPC分类号： G03B21/00 , G03B21/62 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide an image display system capable of restraining distortions of an image and enlarging and displaying the image, and which is made thinner than the conventional ones.
SOLUTION: An image display system includes a transmission means 10 for imparting image information to illumination light and for transmitting the illumination light as an optical image signal; a projecting optical means comprising a refractive optical unit 21 for projecting the optical image signal transmitted thereto from the transmission system; an optical path bending means for bending the optical image signal projected from the refractive optical unit substantially in a horizontal surface; and a reflecting unit 22 for reflecting the optical image signal bent by the optical path bending means; and a display means 30 for receiving the optical image signal on the backside thereof via the projective optical system and for displaying an image based on the image information, wherein the transmission means is placed apart from the optical axis of the projective optical means and between the front surface of the display means, based on the image display system and the backside of the projective optical system; and the transmission means is further placed so that the longest distance from the reflecting optical unit to the refractive optical unit and/or the optical path bending means becomes the limiting value in the thickness of the image display system, as the distance between the front surface of the display means 30 and the backside of the projective optical means.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制图像失真并放大和显示图像的图像显示系统，并且比现有技术更薄。解决方案：图像显示系统包括：发送装置10，用于将图像信息传递给照明光并将照明光作为光学图像信号发送; 投影光学装置，包括用于投射从传输系统传送到其上的光学图像信号的折射光学单元21; 光路弯曲装置，用于弯曲从折射光学单元投影的基本上在水平表面上的光学图像信号; 以及反射单元22，用于反射由光路弯曲装置弯曲的光学图像信号; 以及显示装置30，用于经由投影光学系统在其背面接收光学图像信号，并且用于基于图像信息显示图像，其中，传输装置与投射光学装置的光轴分离，并且在基于图像显示系统和投影光学系统的背面，显示装置的前表面; 并且传输装置进一步放置成使得从反射光学单元到折射光学单元和/或光路弯曲装置的最长距离成为图像显示系统的厚度的限制值，因为前表面的投影光学装置的背面。版权所有（C）2008，JPO＆INPIT

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