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1. 发明授权

US08403494B2 Projection-type display apparatus with a projection optical system configured to reduce speckle 有权
标题翻译：具有投影光学系统的投射型显示装置，其配置为减少斑点
公开(公告)号：US08403494B2
公开(公告)日：2013-03-26
申请号：US12535246
申请日：2009-08-04
申请人： Kuniko Kojima , Hayato Takeuchi , Tomohiro Sasagawa , Yuzo Nakano
发明人： Kuniko Kojima , Hayato Takeuchi , Tomohiro Sasagawa , Yuzo Nakano
IPC分类号： G03B21/14 , G03B21/28 , G03B21/56 , G02B3/08 , G02B13/20 , G02B5/02
CPC分类号： G03B21/20 , G03B21/005 , G03B21/2033 , G03B21/208 , G03B21/62
摘要： An image formed on a reflecting optical modulator is magnified by a projection optical system and projected on a backside of a transmission-type screen. The projection optical system is constituted so that a product of an F-number and a projection magnification of the projection optical system is less than 400.
摘要翻译：形成在反射光调制器上的图像被投影光学系统放大并投影在透射型屏幕的背面。投影光学系统构成为投影光学系统的F数和投影倍率的乘积小于400。

2. 发明申请

US20120235891A1 LIQUID CRYSTAL DISPLAY DEVICE 审中-公开
标题翻译：液晶显示装置
公开(公告)号：US20120235891A1
公开(公告)日：2012-09-20
申请号：US13513203
申请日：2010-11-29
申请人： Rena Nishitani , Tomohiro Sasagawa , Eiji Niikura , Muneharu Kuwata , Kuniko Kojima
发明人： Rena Nishitani , Tomohiro Sasagawa , Eiji Niikura , Muneharu Kuwata , Kuniko Kojima
IPC分类号： G09G3/36
CPC分类号： G02B5/0231 , G02B3/0056 , G02B6/0036 , G02B6/0053 , G02B6/0076 , G02F1/1323 , G02F2001/133626
摘要： A liquid crystal display device has a first backlight unit and a second backlight unit. The first backlight unit includes a first optical member that transmits light incident from the second backlight unit, converts light output from a light source to light having a narrow-angle directional distribution, and radiates the converted light toward the rear surface of the liquid crystal display panel. The second backlight unit includes a second optical member that converts light output from a light source to light having a wide-angle directional distribution, and radiates the converted light toward the rear surface of the liquid crystal display panel.
摘要翻译：液晶显示装置具有第一背光单元和第二背光单元。第一背光单元包括透射从第二背光单元入射的光的第一光学构件，将从光源输出的光转换成具有窄角方向分布的光，并将转换的光朝向液晶显示器的后表面照射面板。第二背光单元包括将从光源输出的光转换成具有广角方向分布的光的第二光学构件，并将转换的光朝向液晶显示面板的后表面照射。

3. 发明授权

US07794093B2 Projection display apparatus 有权
标题翻译：投影显示装置
公开(公告)号：US07794093B2
公开(公告)日：2010-09-14
申请号：US11826506
申请日：2007-07-16
申请人： Kuniko Kojima , Tomohiro Sasagawa
发明人： Kuniko Kojima , Tomohiro Sasagawa
IPC分类号： G03B21/28 , G03B21/22 , G02B5/12 , G02B27/46
CPC分类号： G03B21/208 , G02B27/0994 , G03B21/2046 , G03B33/08 , H04N9/3129 , H04N9/3152 , Y10S385/901
摘要： A projection display apparatus includes a light source, a light intensity equalizing element, a reflective light valve, a relay optical system, and a projecting optical system; the light intensity equalizing element being an optical device in which a cross-sectional shape in a direction orthogonal to a central axis of the light has four corners; the cross-sectional shape of the light intensity equalizing element being determined in accordance with a rectangular ideal illumination area determined so as to include the image forming area on the reflective light valve, an illumination area on the reflective light valve when a reference light intensity equalizing element is assumed to be used, the reference light intensity equalizing element being rectangular in a cross-sectional shape in a direction orthogonal to the central light ray, and the cross-sectional shape of the reference light intensity equalizing element.
摘要翻译：投影显示装置包括光源，光强均衡元件，反射光阀，中继光学系统和投影光学系统; 所述光强均衡元件是其中与所述光的中心轴正交的方向上的横截面形状具有四个角的光学装置; 光强均衡元件的横截面形状根据被确定为包括反射光阀上的图像形成区域的矩形理想照明区域确定，反射光阀上的照明区域在参考光强度均衡时假设使用元件，参考光强均衡元件在与中心光线正交的方向上呈截面形状为矩形，并且参考光强均衡元件的横截面形状。

4. 发明申请

US20100220300A1 PROJECTION DISPLAY APPARATUS 审中-公开
标题翻译：投影显示设备
公开(公告)号：US20100220300A1
公开(公告)日：2010-09-02
申请号：US12710976
申请日：2010-02-23
申请人： Jun KONDO , Kuniko Kojima , Tomohiro Sasagawa
发明人： Jun KONDO , Kuniko Kojima , Tomohiro Sasagawa
IPC分类号： G03B21/14 , G03B21/28
CPC分类号： G03B21/28 , G03B21/208
摘要： Provided is a projection display apparatus capable of avoiding decreasing efficiency in the use of a light beam propagating from a light source, thereby to display a high-quality image. The projection display apparatus includes: a light source for emitting a coherent light beam; a light valve having an image-forming region for modulating a light beam propagating from the light source, thereby to generate and emit an image light beam; a lighting-optical system for guiding to the image-forming region the light beam propagating from the light source; a projection-optical system for enlarging and projecting the image light beam emitted by the image-forming region; and a diffusion device located in the lighting-optical system and in the vicinity of a position optically conjugated with the image-forming region. The diffusion device has a structure in which a plurality of microscopic optical elements is regularly arranged on a base plane perpendicular to a propagation direction of a light beam propagating from the light source.
摘要翻译：提供一种能够避免使用从光源传播的光束的效率降低的投影型显示装置，从而显示高质量的图像。该投影显示装置包括：用于发射相干光束的光源; 光阀，具有用于调制从光源传播的光束的图像形成区域，从而产生并发射图像光束; 照明光学系统，用于将从光源传播的光束引导到图像形成区域; 投影光学系统，用于放大和投影由图像形成区域发射的图像光束; 以及位于照明光学系统中以及与图像形成区域光学共轭的位置附近的扩散装置。扩散装置具有多个微观光学元件规则地布置在垂直于从光源传播的光束的传播方向的基底平面上的结构。

5. 发明授权

US07576805B2 Display device with light guide plate having antireflection portions on light incident surfaces 有权
标题翻译：具有在光入射面上具有防反射部分的导光板的显示装置
公开(公告)号：US07576805B2
公开(公告)日：2009-08-18
申请号：US11243452
申请日：2005-10-05
申请人： Atsushi Ito , Akimasa Yuuki , Nobuyuki Zumoto , Toshiyuki Yoneda , Tomohiro Sasagawa
发明人： Atsushi Ito , Akimasa Yuuki , Nobuyuki Zumoto , Toshiyuki Yoneda , Tomohiro Sasagawa
IPC分类号： G02F1/1335 , F21V7/04
CPC分类号： G02F1/133615
摘要： A display device includes a light guide plate which includes a light transmission portion and an antireflection portion at two opposite end faces and which is provided with a light extraction portion in part of a surface, respective light sources which are arranged on outer sides of the two opposite end faces, a transmission liquid crystal panel located adjacent to the light extraction portion, and a synchronous drive unit that alternately turns ON the light sources and that displays an image that is synchronous with an alternating turn-ON operation of the transmission liquid crystal panel.
摘要翻译：显示装置包括导光板，该导光板在两个相对端面处包括光透射部分和抗反射部分，并且在一部分表面上设置有光提取部分，各个光源布置在两个外侧相邻端面，位于与光提取部相邻的透射型液晶面板，以及同步驱动单元，其交替地接通光源，并且显示与透射型液晶面板的交替接通操作同步的图像。

6. 发明申请

US20080129896A1 Light diffusion element, screen, and image projector 有权
标题翻译：光扩散元件，屏幕和图像投影仪
公开(公告)号：US20080129896A1
公开(公告)日：2008-06-05
申请号：US11905136
申请日：2007-09-27
申请人： Muneharu Kuwata , Tomohiro Sasagawa , Jun Someya , Hiroaki Sugiura
发明人： Muneharu Kuwata , Tomohiro Sasagawa , Jun Someya , Hiroaki Sugiura
IPC分类号： G02F1/139 , G02F1/13 , G02F1/133
CPC分类号： G02F1/1334 , G02B3/0006 , G02B3/005 , G02B3/08 , G02B5/0242 , G02B5/0278 , G02F1/13306 , G02F2001/13756 , G02F2203/03 , G03B21/56
摘要： A light diffusion element includes a light diffusion layer that contains at least two types of liquid crystal molecules each having a different light scattering characteristic defined by a voltage and a refractive index. A pair of electrodes sandwiches the light diffusion layer, an applying unit generates and applies a variable voltage to the pair of electrodes, and a voltage changing unit varies the voltage generated by the applying unit. The voltage changing unit varies the voltage such that each of the refractive indexes of the liquid crystal molecules in the light diffusion layer changes temporally.
摘要翻译：光扩散元件包括光扩散层，其包含至少两种类型的液晶分子，每种液晶分子具有由电压和折射率定义的不同的光散射特性。一对电极夹着光扩散层，施加单元生成并向一对电极施加可变电压，电压改变单元改变由施加单元产生的电压。电压改变单元改变电压，使得光扩散层中的液晶分子的每个折射率在时间上变化。

7. 发明授权

US07210836B2 Display unit and electronic apparatus with display unit 有权
标题翻译：显示单元和带显示单元的电子设备
公开(公告)号：US07210836B2
公开(公告)日：2007-05-01
申请号：US10523205
申请日：2003-09-19
申请人： Tomohiro Sasagawa , Akimasa Yuuki , Naoto Sugawara
发明人： Tomohiro Sasagawa , Akimasa Yuuki , Naoto Sugawara
IPC分类号： F21V7/04
CPC分类号： G02B27/2214
摘要： A display system includes respective light sources disposed at two opposed light input ends of a light guiding plate. A double-sided prism sheet is disposed on a light-emitting side of the light guiding plate and includes, on a first surface facing the light guiding plate, a triangular prism bank extending in a direction parallel to the light input ends of the light guiding plate. The double-sided prism sheet includes, on a second surface, opposite to the first surface, a cylindrical lens bank extending in a direction parallel to the triangular prism bank. A transmissive display panel is disposed on a light-emitting side of the double-sided prism sheet. A synchronization driving section alternatively illuminates the respective light sources so the transmissive display panel displays two different images. The light from the light sources is emitted through the transmissive display panel at respective divergent angles producing two images corresponding to right and left parallax images, producing a stereoscopic display.
摘要翻译：显示系统包括设置在导光板的两个相对的光输入端处的各个光源。双面棱镜片设置在导光板的发光侧，并且在与导光板相对的第一表面上包括在与导光板的光输入端平行的方向上延伸的三角棱镜组盘子。双面棱镜片在与第一表面相反的第二表面上包括沿平行于三角形棱镜组的方向延伸的柱面透镜组。透射显示面板设置在双面棱镜片的发光侧。同步驱动部件交替地照亮各个光源，因此透射式显示面板显示两个不同的图像。来自光源的光以相应的发散角通过透射显示面板发射，产生对应于左右视差图像的两个图像，产生立体显示。

8. 发明申请

US20060250514A1 Imaging apparatus 审中-公开
公开(公告)号：US20060250514A1
公开(公告)日：2006-11-09
申请号：US11482819
申请日：2006-07-10
申请人： Mitsuo Inoue , Tomohiro Sasagawa , Hiroaki Sugiura , Masao Hamamura
发明人： Mitsuo Inoue , Tomohiro Sasagawa , Hiroaki Sugiura , Masao Hamamura
IPC分类号： G02B13/16
CPC分类号： H04N5/2254 , H04N5/2252 , H04N13/156 , H04N13/218
摘要： An imaging apparatus including at least an imaging device having a plurality of photoelectric transfer devices arranged in matrix-shape to detect a light irradiated to each photoelectric transfer device and transfer to electric signal, and imaging means for imaging an image of a photogenic object on a surface of the imaging devices. The imaging means images at least two similar images of the photogenic subject on different area of the surface of the imaging device, and the imaging apparatus further includes electric signal processing means to form one image of photogenic subject from at least two images of photogenic subject. Since a plurality of images of photogenic subject can be formed on the imaging device by a plurality of image formation lenses, a thinner imaging apparatus can be realized.

9. 发明授权

US06997565B2 Lamp, polarization converting optical system, condensing optical system and image display device 失效
标题翻译：灯，偏光转换光学系统，会聚光学系统和图像显示装置
公开(公告)号：US06997565B2
公开(公告)日：2006-02-14
申请号：US10629669
申请日：2003-07-30
申请人： Akira Sekiguchi , Tomohiro Sasagawa , Junichi Nishimae , Yoshiyuki Goto , Kohei Teramoto
发明人： Akira Sekiguchi , Tomohiro Sasagawa , Junichi Nishimae , Yoshiyuki Goto , Kohei Teramoto
IPC分类号： G03B21/20 , F21V7/00 , F21V7/06 , F21V7/09
CPC分类号： G03B21/208 , G03B21/2066
摘要： A lamp has a deformed lamp reflector and a lamp front glass. The deformed lamp reflector is formed by deforming a paraboloid of revolution of a conventional lamp reflector to an aspherical reflection surface which is rotationally symmetrical with respect to an optical axis. The lamp front glass is obtained by deforming the incident plane of a conventional lamp front glass to an aspherical lens surface rotationally symmetric with respect to the optical axis. A light flux radiated from the center point of the light source of an illuminant is reflected by the deformed lamp reflector, and is output through the lens as a parallel light flux having a circular cross section equal in area to the lens.
摘要翻译：灯具有变形的灯反射器和灯前玻璃。变形的灯反射器通过将常规灯反射器的旋转抛物面变形成相对于光轴旋转对称的非球面反射表面而形成。灯前玻璃是通过将传统的灯前玻璃的入射面变形成相对于光轴旋转对称的非球面透镜表面而获得的。从光源的光源的中心点辐射的光束被变形的灯反射体反射，并且通过透镜作为与透镜的面积相等的圆形横截面的平行光束输出。

10. 发明申请

US20050243572A1 Lamp, condensing optical system, and image display device 有权
标题翻译：灯，聚光光学系统和图像显示装置
公开(公告)号：US20050243572A1
公开(公告)日：2005-11-03
申请号：US11176286
申请日：2005-07-08
申请人： Akira Sekiguchi , Tomohiro Sasagawa , Yoshiyuki Goto , Kohei Teramoto , Tetsuo Sato
发明人： Akira Sekiguchi , Tomohiro Sasagawa , Yoshiyuki Goto , Kohei Teramoto , Tetsuo Sato
IPC分类号： F21V7/00 , G02B27/09 , H04N5/74
CPC分类号： G02B27/0927 , G02B27/0983 , G02B27/0994 , H04N5/7416 , H04N9/315
摘要： A lamp has a deformed lamp reflector and a lamp front glass. The deformed lamp reflector is made by deforming an ellipsoid of revolution of a conventional lamp reflector into an aspherical reflection surface rotationally symmetrical with respect to an optical axis. The lamp front glass is obtained by deforming at least one of an incident surface and outgoing surface of a conventional lamp front glass into an aspherical lens surface rotationally symmetrical with respect to the optical axis. A light flux emitted from the center point of an illuminant is reflected by the deformed lamp reflector, and output with a uniform density through all of the outgoing surface of the lamp front lens so that the light flux is condensed at focus point.
摘要翻译：灯具有变形的灯反射器和灯前玻璃。变形的灯反射器通过将常规灯反射器的旋转椭圆变形为相对于光轴旋转对称的非球面反射表面而制成。灯前玻璃是通过使常规的灯前玻璃的入射面和出射面中的至少一个变形成相对于光轴旋转对称的非球面透镜面而得到的。从光源的中心点发射的光束被变形的灯反射体反射，并且通过灯前透镜的所有出射表面以均匀的浓度输出，使得光束在焦点处会聚。

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