公开(公告)号：US08434876B2

公开(公告)日：2013-05-07

申请号：US12746828

申请日：2009-10-21

申请人： Kuniko Kojima ,  Hiroshi Kida

发明人： Kuniko Kojima ,  Hiroshi Kida

IPC分类号： G03B21/26

CPC分类号： G03B21/14 ,  G03B21/2013 ,  G03B21/2053 ,  G03B21/2066 ,  H04N9/3152 ,  H04N9/3164

摘要： A projection type display apparatus having a long-life light source device with high light utilization efficiency includes first and second light source lamps; a light intensity equalizing element; first and second bending mirrors; an image display element modulating a light flux emitted from the light intensity equalizing element and converting it into image light; and a projection optical system projecting the image light on a screen; and the first light source lamp, the second light source lamp, the first bending mirror and the second bending mirror are arranged so that a first optical axis of the first light source lamp disagrees with a second optical axis of the second light source lamp and a first distance between the first bending mirror and an incidence end differs from a second distance between the second bending mirror and the incidence end.

摘要翻译： 具有高光利用效率的长寿命光源装置的投影型显示装置包括第一和第二光源灯; 光强均衡元件; 第一和第二弯曲镜; 调制从光强均衡元件发射的光束并将其转换为图像光的图像显示元件; 以及将图像光投影在屏幕上的投影光学系统; 并且第一光源灯，第二光源灯，第一弯曲镜和第二弯曲镜布置成使得第一光源灯的第一光轴与第二光源灯的第二光轴不一致，并且 第一弯曲镜与入射端之间的第一距离与第二弯曲镜与入射端之间的第二距离不同。

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。

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。

公开(公告)号：US07950808B2

公开(公告)日：2011-05-31

申请号：US11984507

申请日：2007-11-19

申请人： Kuniko Kojima ,  Hayato Takeuchi

发明人： Kuniko Kojima ,  Hayato Takeuchi

IPC分类号： G03B21/26 ,  G03B21/28

CPC分类号： G03B21/28

摘要： An illuminating optical system propagates a coherent light flux from at least one light source into a predetermined optical path to guide the light flux to a screen. A light bulb forms an image to be displayed on the screen on an illumination area illuminated with the light flux that is guided by the illuminating optical system. A projecting optical unit projects the image that is formed on the illumination area onto the screen in a magnifying manner. The illuminating optical system includes a diffusing unit that diffuses the light flux from the light source near a focusing position of the illuminating optical system.

摘要翻译： 照明光学系统将来自至少一个光源的相干光通量传播到预定光路中，以将光通量引导到屏幕。 灯泡在由照明光学系统引导的光束照射的照明区域上形成要在屏幕上显示的图像。 投影光学单元以放大的方式将形成在照明区域上的图像投影到屏幕上。 照明光学系统包括漫射单元，其将来自光源的光束在照明光学系统的聚焦位置附近扩散。

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。

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。

公开(公告)号：US20090135480A1

公开(公告)日：2009-05-28

申请号：US12289282

申请日：2008-10-23

申请人： Kuniko Kojima ,  Hayato Takeuchi ,  Norihiro Watanabe ,  Yuzou Nakano ,  Takao Endo

发明人： Kuniko Kojima ,  Hayato Takeuchi ,  Norihiro Watanabe ,  Yuzou Nakano ,  Takao Endo

IPC分类号： G03B21/62 ,  G02B27/12

CPC分类号： G03B21/62 ,  G02B5/0215 ,  G02B5/0231 ,  G02B5/0278 ,  G02B5/045

摘要： The Fresnel lens sheet according to the present invention has a plurality of prismatic Fresnel lens elements including a Fresnel facet, a riser facet, and a top facet crossing the facet and the riser facet on an entrance surface. An angle of the top facet of each Fresnel lens element constituting the lens relative to the an exit surface, δ1, is determined so that an exit angle of the light that has entered each of the top facets and exits from the exit surface, β, is greater than 35 degrees.

摘要翻译： 根据本发明的菲涅耳透镜片具有多个棱镜菲涅耳透镜元件，其包括菲涅耳面，提升板面和顶面，其在入射面上与小平面和提升板面相交。 确定构成透镜的每个菲涅尔透镜元件相对于出射表面delta1的顶面的角度，使得已经进入每个顶面并从出射表面β射出的光的出射角， 大于35度。

公开(公告)号：US20080252863A1

公开(公告)日：2008-10-16

申请号：US11984507

申请日：2007-11-19

申请人： Kuniko Kojima ,  Hayato Takeuchi

发明人： Kuniko Kojima ,  Hayato Takeuchi

IPC分类号： G03B21/28

CPC分类号： G03B21/28

摘要： An illuminating optical system propagates a coherent light flux from at least one light source into a predetermined optical path to guide the light flux to a screen. A light bulb forms an image to be displayed on the screen on an illumination area illuminated with the light flux that is guided by the illuminating optical system. A projecting optical unit projects the image that is formed on the illumination area onto the screen in a magnifying manner. The illuminating optical system includes a diffusing unit that diffuses the light flux from the light source near a focusing position of the illuminating optical system.

摘要翻译： 照明光学系统将来自至少一个光源的相干光通量传播到预定光路中，以将光通量引导到屏幕。 灯泡在由照明光学系统引导的光束照射的照明区域上形成要在屏幕上显示的图像。 投影光学单元以放大的方式将形成在照明区域上的图像投影到屏幕上。 照明光学系统包括漫射单元，其将来自光源的光束在照明光学系统的聚焦位置附近扩散。

公开(公告)号：US20080136977A1

公开(公告)日：2008-06-12

申请号：US11761781

申请日：2007-06-12

申请人： Shigeki HARADA ,  Takayoshi Nagai ,  Ikuro Suga ,  Akihiko Iwata ,  Yoshiteru Suzuki ,  Akira Okumura ,  Jun Someya ,  Kuniko Kojima

发明人： Shigeki HARADA ,  Takayoshi Nagai ,  Ikuro Suga ,  Akihiko Iwata ,  Yoshiteru Suzuki ,  Akira Okumura ,  Jun Someya ,  Kuniko Kojima

IPC分类号： H04N5/74

CPC分类号： H05B41/2928 ,  H04N9/312 ,  H04N9/3155

摘要： A projection display uses a light modulating device to modulate, in accordance with image data, light radiated from a light source, project the modulated light onto a screen, and display an image. The projection display separates a unit of time configuring the image data into an effective light time when the light modulating device can express the light as an image on the screen and an ineffective light time when the light modulating device cannot express the light as an image on the screen. The projection display increases the power supplied to the light source during the effective light time over the power supplied to the light source during the ineffective light time.

摘要翻译： 投影显示器使用光调制装置根据图像数据调制从光源辐射的光，将调制的光投影到屏幕上，并显示图像。 当光调制装置可以将光作为图像显示在屏幕上时，投影显示器将构成图像数据的时间单位分离成有效光时间，并且当光调制装置不能将光作为图像表示时，无效的光时间 屏幕。 在无效光时间期间，投影显示器增加在有效光照时间内提供给光源的功率，而不是提供给光源的功率。

公开(公告)号：US08469525B2

公开(公告)日：2013-06-25

申请号：US12644731

申请日：2009-12-22

申请人： Kuniko Kojima ,  Hayato Takeuchi ,  Tomohiro Sasagawa

发明人： Kuniko Kojima ,  Hayato Takeuchi ,  Tomohiro Sasagawa

IPC分类号： G03B21/20

CPC分类号： H04N9/3161 ,  G02B5/02 ,  G02B27/48 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/208 ,  H04N9/3102 ,  H04N9/3155

摘要： A projection-type display apparatus that projects an image on a screen and performs image display includes at least one laser source that emits a coherent light beam, an illuminating optics that propagates the light beam emitted from the laser source into a predetermined optical path to guide the light beam to the screen, a reflective optical modulator that forms the image to be displayed on the screen on an illuminated surface illuminated by the light beam guided by the illuminating optics, and a projection optics that magnifies and projects the image formed on the illuminated surface of the reflective optical modulator on the screen. The illuminating optics includes a diffusion device, which diffuses the propagated light beam, and is arranged on a light propagation path near a conjugated position with the reflective optical modulator.

摘要翻译： 将图像投影在屏幕上并执行图像显示的投影型显示装置包括发射相干光束的至少一个激光源，将从激光源发射的光束传播到预定光路中以引导的照明光学器件 向屏幕的光束，形成在由照明光学器件引导的光束照射的照明表面上要在屏幕上显示的图像的反射型光学调制器，以及投影光学器件，其放大并投射形成在照明 屏幕上的反光光学调制器的表面。 照明光学器件包括扩散装置，其扩散传播的光束，并且被布置在与反射型光学调制器接近共轭位置的光传播路径上。