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91. 发明专利

JP2001264752A LIQUID CRYSTAL DISPLAY DEVICE AND FRONT LIGHT UNIT 失效
公开(公告)号：JP2001264752A
公开(公告)日：2001-09-26
申请号：JP2000072840
申请日：2000-03-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： MOROTA MASAHISA , IWATA YUJI , YUKI AKIMASA , SASAGAWA TOMOHIRO
IPC分类号： G02F1/1333 , G02F1/1335 , G02F1/13357 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device high in assemblability. SOLUTION: The liquid crystal display device 100a is provided with a liquid crystal panel 120, an LCD frame 112 holding the liquid crystal panel 120 in the inner part thereof and a front light unit 200. The front light unit 200 includes an LED 131 and a light guide plate 132 positioned on a display surface side of the liquid crystal panel 120 so that the liquid crystal display panel 120 is irradiated with light emitted from the LED 131. The front light unit 200 is held in the LCD frame 112.

92. 发明专利

JP2001036776A IMAGE PICKUP DEVICE 失效
公开(公告)号：JP2001036776A
公开(公告)日：2001-02-09
申请号：JP20124299
申请日：1999-07-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： INOUE MITSUO , SASAGAWA TOMOHIRO , SUGIURA HIROAKI , HAMAMURA MASAO
IPC分类号： H04N5/225 , G03B19/07 , H04N1/04 , H04N5/335 , H04N5/372 , H04N5/374
摘要： PROBLEM TO BE SOLVED: To reduce the thickness of an image pickup device by forming the images of plural similar objects in the different areas of an image pickup element surface to constitute the image of one object from plural object images. SOLUTION: Light beams reflected by an object 101 or generated from the object 101 form an image on the photodetective surface of an image pickup element 103 by respective four image forming lenses 1. Then, the four lenses 1 respectively form four similar object images 2 on the photodetective surface of the element 103. Numbers of photoelectric converters such as CCDs are arrayed on the photodetective surface of the element 103 and one photoelectric converter detects optical intensity reaching some space part to convert it to an electric signal equivalent to the optical intensity. When these electric signal and positioning information of the array of the photoelectric converter is known, four object images 2 formed at the entire surface of the single image pickup element can be reproduced and in addition, one object image can be formed by compositing these again.

93. 发明专利

JP2000305083A BACKLIGHT FOR LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2000305083A
公开(公告)日：2000-11-02
申请号：JP11339599
申请日：1999-04-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWASAKI NAOKO , YUKI AKIMASA , SASAGAWA TOMOHIRO , MATSUMOTO SADAYUKI , ODA KYOICHIRO
IPC分类号： G02F1/1335 , F21V8/00 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a backlight for a liquid crystal display device with improved incident efficiency on a light transmission plate without increasing its thickness and without drastically changing the method for its manufacturing. SOLUTION: The backlight is provided, on the inside wall-surface of the reflector 10 nearly composed of planes, with a first plane part 31 which is parallel with an end face 20 of a light transmission plate 2, a second plane part 32 which constitutes the upper surface side of a reflector and is parallel with the surface of the light transmission plate and a third plane part 33 at the lower surface side of the reflector. The inside surface of a corner part to which the first and the second plane parts are connected and the inside surface of a corner part where the first and the third plane parts are connected are formed as curved surfaces having their centers of curvature inside the reflector.

94. 发明专利

JPH09113903A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09113903A
公开(公告)日：1997-05-02
申请号：JP27270395
申请日：1995-10-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASAGAWA TOMOHIRO , NISHIMAE JUNICHI , INOUE MITSUO , TANAKA MASAAKI , TAMIDA TAICHIRO , YAMAMOTO TATSUYA
IPC分类号： G02B6/00 , G02B3/00 , G02B5/18 , G02F1/1335 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device which lessens the loss of light by color sepn., is bright and consumes less electric power. SOLUTION: The light emitted from a light source 1 placed at the end of a light transmission plate is made incident on the light transmission plate via a reflection mirror 2, is advanced into the light transmission plate 3, is reflected in a perpendicular direction by a diffraction grating 4 surface and is emitted from the light transmission plate 3. At this time, the respective colors, red, green and blue are reflected in respectively different directions by the dispersion effect of the diffraction gratings 4 at the time the light is reflected by the diffraction grating 4 surface. The light rays taken out of the light transmission plate 3 are aligned in the polarization directions by a polarizing plate 11a and are condensed to the apertures of pixels by lenses 5 arranged on the pixels. Since the respective colors red, green and blue are separated to the light rays advancing in the respectively different directions, the respective colors red, green and blue are condensed onto the pixels of the respectively different colors.

95. 发明专利

JPH04312989A NARROW BAND PULSE LASER GENERATOR 失效
公开(公告)号：JPH04312989A
公开(公告)日：1992-11-04
申请号：JP5536991
申请日：1991-03-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASAGAWA TOMOHIRO
IPC分类号： H01S3/08 , H01S3/106
摘要： PURPOSE:To obtain a narrow band pulse laser generator having a high oscillation efficiency by extending a life of a band narrowing etalon. CONSTITUTION:A discharge exciter 1, a band narrowing etalon 2, and totally reflecting mirror 3, partially reflecting mirror 4 for constituting a resonator are so disposed as to satisfy the following equation. L1-L2 -R)/R (cm), where L1, L2 (cm) are a distance from a center of the exciter 1 to the mirror 3, a distance from the exciter 1 to the mirror 4, R (0

96. 发明专利

JP2011170034A Light diffusing device, screen and image projection device 有权
标题翻译：光扩散装置，屏幕和图像投影装置
公开(公告)号：JP2011170034A
公开(公告)日：2011-09-01
申请号：JP2010032488
申请日：2010-02-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KUWATA MUNEHARU , SASAGAWA TOMOHIRO , YOKOYAMA EIJI , OKAGAKI MANABU , KONDO JUN
IPC分类号： G03B21/62 , G02B5/02 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a light diffusing device capable of moving a light diffusing material in the surface direction of a screen while saving energy required for moving the light diffusing material and suppressing diffusion unevenness of the light diffusing material on the entire screen.
SOLUTION: A first electrode 37 made of a plurality of segment electrodes 37a-37c is disposed on the entering surface side of a light diffusing layer 40. A second electrode 38 made of a plurality of segment electrodes 38a-38c is disposed on the outgoing surface side of the light diffusing layer 40. Voltages are applied between the first electrode 37 and the second electrode 38 so that a change of returning to a first state in which voltages of different polarities are applied to the first segment electrode 37a included in the first electrode 37 and to the second segment electrode 38a included in the second electrode 38 and not normally facing the first segment electrode 37a through the first state and a second state in which an electric field having reverse vector components to the vector components in the surface direction of an electric field generated in the first state is generated.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题的方案：提供一种光漫射装置，其能够在屏幕的表面方向上移动光漫射材料，同时节省移动光漫射材料所需的能量，并抑制光漫射材料在整体上的扩散不均匀性屏幕。解决方案：由多个段电极37a-37c制成的第一电极37设置在光漫射层40的入射表面侧。由多个段电极38a-38c制成的第二电极38设置在在第一电极37和第二电极38之间施加电压，使得返回到不同极性的电压的第一状态的变化被施加到包括在第一电极37中的第一段电极37a 第一电极37和包括在第二电极38中的第二段电极38a，并且通常不面向第一段电极37a通过第一状态，而第二状态具有与表面中的矢量分量相反的矢量分量的电场产生在第一状态下产生的电场的方向。版权所有（C）2011，JPO＆INPIT

97. 发明专利

JP2011154092A Device for moving dispersion liquid and display device 审中-公开
标题翻译：用于移动分散液体和显示装置的装置
公开(公告)号：JP2011154092A
公开(公告)日：2011-08-11
申请号：JP2010014276
申请日：2010-01-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YOKOYAMA EIJI , OKAGAKI MANABU , KONDO JUN , KUWATA MUNEHARU , SASAGAWA TOMOHIRO
IPC分类号： G03B21/56 , G02B5/02 , G03B21/00 , G03B21/14 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a device 200 for moving dispersion liquid which is improved in mechanical durability to reduce scintillation without requiring a mechanical moving part for movement of light diffusion particles for diffusing projection light, and to provide a display device 100 including a projection part 2 or the like in the device 200.
SOLUTION: In the device for moving dispersion liquid, an image projection screen 18 has: light diffusion particles which diffuse the projection light for projecting an image; a dispersion medium in which the light diffusion particles are dispersed; a dispersion liquid enclosing member 1 enclosing the dispersion medium in shape defined as a circular ring in topology; and a heating means 13 heating the dispersion liquid by heating a part of the dispersion liquid enclosing member 1. The screen 18 constituted of a screen part 12 formed in a part of the dispersion liquid enclosing member 1, a lenticular lens 33 and a light diffusion plate 3 functions as the screen for image projection.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种用于移动分散液体的装置200，其提高机械耐久性以减少闪烁，而不需要用于漫射投影光的光漫射颗粒的移动的机械移动部件，并且提供显示装置100 在设备200中包括投影部分2等。解决方案：在用于移动分散液体的装置中，图像投影屏幕18具有：漫射用于投影图像的投影光的光漫射粒子; 其中散射光扩散粒子的分散介质; 包围分散介质的分散液封闭构件1，其形状定义为拓扑结构中的圆形环; 以及加热装置13，通过加热分散液封闭构件1的一部分来加热分散液。由形成在分散液封闭构件1的一部分上的筛网部分12构成的筛网18，双凸透镜33和光扩散板3用作图像投影的屏幕。版权所有（C）2011，JPO＆INPIT

98. 发明专利

JP2010152176A Projection type display device 审中-公开
标题翻译：投影型显示设备
公开(公告)号：JP2010152176A
公开(公告)日：2010-07-08
申请号：JP2008331424
申请日：2008-12-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOJIMA KUNIKO , TAKEUCHI ISATO , SASAGAWA TOMOHIRO
IPC分类号： G03B21/00 , G02B27/18 , G02F1/13 , G02F1/1335
CPC分类号： H04N9/3161 , G02B5/02 , G02B27/48 , G03B21/2033 , G03B21/2066 , G03B21/208 , H04N9/3102 , H04N9/3155
摘要： PROBLEM TO BE SOLVED: To provide a projection type display device capable of efficiently reducing scintillation and displaying good quality images. SOLUTION: The projection type display device for projecting an image on a screen and displaying the image includes: at least one laser light source 11 for emitting coherent light; an illumination optical system 4A for propagating the luminous flux emitted from the laser light source 11 into a predetermined optical path and guiding the luminous flux toward the screen side; a reflection type optical modulation element 2 for forming an image to be displayed on the screen, on an illuminated surface 2a illuminated by the luminous flux guided by the illumination optical system 4A; and a projection optical system 3 for enlarging and projecting the image formed on the illuminated surface 2a of the reflection type optical modulation element 2 onto the screen. In the illumination optical system 4A, a diffusion element 5 for diffusing the propagated light is disposed in the vicinity of a conjugate position with the reflection type optical modulation element 2, on the light propagation path. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够有效地减少闪烁并显示高质量图像的投影型显示装置。解决方案：用于在屏幕上投影图像并显示图像的投影型显示装置包括：用于发射相干光的至少一个激光源11; 照明光学系统4A，用于将从激光光源11发射的光束传播到预定光路并将光束引向屏幕侧; 用于在由照明光学系统4A引导的光束照射的照明面2a上形成要在屏幕上显示的图像的反射型光调制元件2; 以及投影光学系统3，用于将形成在反射型光调制元件2的照射表面2a上的图像放大并投影到屏幕上。在照明光学系统4A中，在光传播路径上，在与光反射型光调制元件2的共轭位置附近设置扩散光的扩散元件5。版权所有（C）2010，JPO＆INPIT

99. 发明专利

JP2009210987A Illuminating optical system and image display apparatus 审中-公开
标题翻译：照明光学系统和图像显示设备
公开(公告)号：JP2009210987A
公开(公告)日：2009-09-17
申请号：JP2008056144
申请日：2008-03-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKEUCHI ISATO , YAMADA AKIHIRO , MURASE REINA , SASAGAWA TOMOHIRO
IPC分类号： G02B27/28 , G02F1/13 , G02F1/1335 , G02F1/13357 , G03B21/00 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide an illuminating optical system and image forming apparatus for reducing speckle noise without increasing the size of the apparatus and without causing light loss. SOLUTION: The illuminating optical system includes: a laser light source 1 that emits linear polarization light (p polarization light); and a polarizing optical element 2 which emits luminous fluxes incident from the laser light source 1 by changing their polarization axes (s polarization light and p polarization light) according to their positions within a flat plane perpendicular to an optical axis C. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在不增加设备尺寸并且不引起光损失的情况下减少斑点噪声的照明光学系统和图像形成装置。解决方案：照明光学系统包括：发射线偏振光（p偏振光）的激光光源1; 以及偏振光学元件2，其通过根据它们在与光轴C垂直的平面内的位置改变其偏振轴（偏振光和p偏振光）而发射从激光光源1入射的光束。（C）2009，JPO＆INPIT

100. 发明专利

JP2009192789A Lighting optical system and image display apparatus 有权
标题翻译：照明光学系统和图像显示设备
公开(公告)号：JP2009192789A
公开(公告)日：2009-08-27
申请号：JP2008033010
申请日：2008-02-14
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MURASE REINA , SASAGAWA TOMOHIRO
IPC分类号： G03B21/14 , G02B19/00 , G02B27/48 , G02F1/13 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a lighting optical system that is easily manufactured and emit an illuminating light suitable for image display by improving speckle noise or spatial light intensity distribution, and to provide a projection image display apparatus. SOLUTION: The system includes a collimate lens 4 as an array direction collimate optical element which emits incoming light from a laser array light source 2 as parallel light within an array face; an array vertical collimate optical element 5 which emits the incoming light from the laser array light source as parallel light within an array vertical face; and an integrator optical element 6 which divides the incoming light into a plurality of luminous fluxes in a matrix form within a plane vertical to an optical axis C, and emits the divided luminous fluxes so as to be overlapped with each other on an illuminated surface of a light bulb 7. The array direction collimate optical element 4 is disposed with a predetermined space Lx from the laser array light source 2 so that diffusive light emitted from a plurality of light emitting points 3 is incident thereon in an overlapped manner. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种容易制造的照明光学系统，并且通过改善散斑噪声或空间光强度分布来发出适合于图像显示的照明光，并提供投影图像显示装置。解决方案：该系统包括作为阵列方向准直光学元件的准直透镜4，其将来自激光阵列光源2的入射光作为阵列面内的平行光发射; 阵列垂直准直光学元件5，其将来自激光阵列光源的入射光作为阵列垂直面内的平行光发射; 以及积分光学元件6，其在垂直于光轴C的平面内以矩阵形式将入射光分成多个光束，并且在被照射的表面上发射分割的光束以彼此重叠阵列方向准直光学元件4以激光阵列光源2的预定空间Lx设置，使得从多个发光点3发射的漫射光以重叠的方式入射到其上。版权所有（C）2009，JPO＆INPIT

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