公开(公告)号：US20140085570A1

公开(公告)日：2014-03-27

申请号：US14123025

申请日：2012-03-14

申请人： Muneharu Kuwata ,  Rena Nishitani ,  Nami Nakano ,  Kuniko Kojima

发明人： Muneharu Kuwata ,  Rena Nishitani ,  Nami Nakano ,  Kuniko Kojima

IPC分类号： G02F1/1335 ,  F21V8/00

CPC分类号： G02F1/133615 ,  G02B6/005 ,  G02B6/0053 ,  G02B6/0061

摘要： An objective is to obtain a backlight in which a decrease in brightness at a peripheral portion associated with the change of viewing distance is reduced. The backlight is comprised with an optical member 107 for transforming beams projected from light sources 117A and 117B into beams having a narrow-angle light distribution in which rays having intensity of no less than a predetermined value are localized within a predetermined angle range centered in the normal direction of a display surface 106b of a liquid crystal display panel 106, and for projecting the transformed beams in the direction of the liquid crystal display panel 106; and a light distribution control member 83 for receiving the beams that are projected from the optical member 107 and that have the narrow-angle light distribution, and for projecting the received beams in the direction of the liquid crystal display panel 106, wherein a plurality of concaves 109 are provided at the light distribution control member 83 for transforming a beam, from among the beams having the narrow-angle light distribution, that enters a peripheral portion of the liquid crystal display panel 106 so that the narrow-angle light distribution of the entered beam is broadened compared to that of a beam that enters a central portion of the liquid crystal display panel 106; and curvature radiuses of the plurality of concaves are formed so that a curvature radius of a concave located at a peripheral portion of the light distribution control member 83 is smaller than a curvature radius of a concave located at a central portion of the light distribution control member 83.

摘要翻译： 目的是获得与观看距离变化相关联的周边部分的亮度降低减小的背光源。 背光源包括用于将从光源117A和117B投影的光束变换成具有窄角度光分布的光束的光学部件107，其中强度不小于预定值的光线定位在以 液晶显示面板106的显示面106b的法线方向，并且使变形光束向液晶显示面板106的方向突出; 以及配光控制构件83，用于接收从光学构件107突出并且具有窄角度光分布的光束，并且用于将接收的光束投影在液晶显示面板106的方向上，其中多个 凹部109设置在配光控制部件83上，用于从入射到液晶显示面板106的周边部分的具有窄角度分布的光束中变换光束，使得光束的窄角度光分布 与进入液晶显示面板106的中心部分的光束相比，进入的光束变宽; 并且形成多个凹部的曲率半径，使得位于配光控制部件83的周缘部的凹部的曲率半径小于位于配光控制部件的中央部的凹部的曲率半径 83。

公开(公告)号：US20130322114A1

公开(公告)日：2013-12-05

申请号：US13980615

申请日：2012-01-17

申请人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

发明人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

IPC分类号： F21V8/00

CPC分类号： G02B6/0075 ,  G02B6/0018 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0051 ,  G02B6/0061 ,  G02B6/0068 ,  G02F1/133615

摘要： A surface light source device includes a surface light-emitting light-guiding unit; an LED light source disposed at an outside position on a side of a direction of the light incident surface; a plurality of laser light sources disposed at an outside position on a side of a direction of a rear surface of the surface light-emitting light-guiding unit; and a laser-light-ray guiding unit arranged on a side of a rear surface of the surface light-emitting light-guiding unit. The laser-light-ray guiding unit guides the laser light rays emitted from the laser light sources so that the laser light rays enter through a light incident end surface, travel in a direction opposite to a direction in which the LED light source emits the LED light ray, and thereafter are reflected by a light bending part to enter through the light incident surface of the surface light-emitting light-guiding unit.

摘要翻译： 面光源装置包括表面发光导光单元; LED光源，其设置在所述光入射面的方向的一侧的外侧位置; 多个激光源，其设置在所述面状发光导光部的背面的一侧的外侧位置; 以及配置在面发光导光部的背面的一侧的激光光线引导部。 激光光线引导单元引导从激光源射出的激光，使得激光入射到入射端面，与LED光源发射LED的方向相反的方向行进 光线，然后被光弯曲部反射，通过面状发光导光部的光入射面进入。

公开(公告)号：US20140340931A1

公开(公告)日：2014-11-20

申请号：US14344875

申请日：2012-09-10

申请人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

发明人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

IPC分类号： F21V8/00 ,  G02B27/09 ,  F21K99/00

CPC分类号： G02B6/0031 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/0053 ,  G02B6/0061 ,  G02B6/0068 ,  G02B27/0927

摘要： A light intensity distribution conversion element has a light incident surface, a light emission surface, and total reflection surfaces. Light having directivity enters the light incident surface. The light emission surface has a curved surface portion of a concave shape with respect to an emitting direction of the light, for broadening an angular intensity distribution of the light. The total reflection surfaces are near or are adjacent to the curved surface portion, are slanted against the emitting direction of the light, and totally reflect the light. The light reflected by the total reflection surfaces is emitted from the curved surface portion.

摘要翻译： 光强分布转换元件具有光入射面，发光面和全反射面。 具有指向性的光进入光入射面。 光发射表面具有相对于光的发射方向为凹形的弯曲表面部分，用于加宽光的角度强度分布。 全反射面靠近或相邻于曲面部分，相对于光的发射方向倾斜，并且完全反射光。 由全反射面反射的光从曲面部射出。

公开(公告)号：US20130322111A1

公开(公告)日：2013-12-05

申请号：US13985551

申请日：2012-02-09

申请人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

发明人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

IPC分类号： F21V8/00

CPC分类号： G02B6/0011 ,  G02B6/0028 ,  G02B6/0036 ,  G02B6/0061 ,  G02B6/0076

摘要： An angular intensity distribution shaping member includes a first surface for receiving a light beam emitted from a light source, the first surface having a length in a width direction that is longer than that in a thickness direction; second surfaces forming a plate-shaped light path on which the light beam incident from the first surface propagates by total reflection, the second surfaces including at least one adjustment surface for spreading a full angle of an angular intensity distribution, in the width direction, of the light beam incident from the first surface so that the full angle becomes wider than that of the angular intensity distribution of the light beam just after emission from the light source; and a third surface through which the light beam exits, the full angle of its angular intensity distribution in the width direction having been widened by the at least one adjustment surface.

摘要翻译： 角度强度分布整形构件包括用于接收从光源发射的光束的第一表面，所述第一表面在宽度方向上的长度比在厚度方向上长的长度; 形成从第一表面入射的光束通过全反射传播的板状光路的第二表面，第二表面包括用于在宽度方向上扩展角度强度分布的全角度的至少一个调整表面 所述光束从所述第一表面入射，使得所述全角变得比刚刚从所述光源发射之后的所述光束的角度强度分布的宽度变宽; 以及光束离开的第三表面，其宽度方向上的角度强度分布的全角已被所述至少一个调节表面加宽。

公开(公告)号：US09103950B2

公开(公告)日：2015-08-11

申请号：US13985551

申请日：2012-02-09

申请人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

发明人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

IPC分类号： F21V8/00

CPC分类号： G02B6/0011 ,  G02B6/0028 ,  G02B6/0036 ,  G02B6/0061 ,  G02B6/0076

摘要： An angular intensity distribution shaping member includes a first surface for receiving a light beam emitted from a light source, the first surface having a length in a width direction that is longer than that in a thickness direction; second surfaces forming a plate-shaped light path on which the light beam incident from the first surface propagates by total reflection, the second surfaces including at least one adjustment surface for spreading a full angle of an angular intensity distribution, in the width direction, of the light beam incident from the first surface so that the full angle becomes wider than that of the angular intensity distribution of the light beam just after emission from the light source; and a third surface through which the light beam exits, the full angle of its angular intensity distribution in the width direction having been widened by the at least one adjustment surface.

摘要翻译： 角度强度分布整形构件包括用于接收从光源发射的光束的第一表面，所述第一表面在宽度方向上的长度比在厚度方向上长的长度; 形成从第一表面入射的光束通过全反射传播的板状光路的第二表面，第二表面包括用于在宽度方向上扩展角度强度分布的全角度的至少一个调整表面 所述光束从所述第一表面入射，使得所述全角变得比刚刚从所述光源发射之后的所述光束的角度强度分布的宽度变宽; 以及光束离开的第三表面，其宽度方向上的角度强度分布的全角已被所述至少一个调节表面加宽。

公开(公告)号：US08998474B2

公开(公告)日：2015-04-07

申请号：US13980615

申请日：2012-01-17

申请人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

发明人： Rena Nishitani ,  Nami Nakano ,  Shuichi Kagawa ,  Muneharu Kuwata ,  Kuniko Kojima

IPC分类号： F21V8/00 ,  G02F1/1335

CPC分类号： G02B6/0075 ,  G02B6/0018 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0051 ,  G02B6/0061 ,  G02B6/0068 ,  G02F1/133615

摘要： A surface light source device includes a surface light-emitting light-guiding unit; an LED light source disposed at an outside position on a side of a direction of the light incident surface; a plurality of laser light sources disposed at an outside position on a side of a direction of a rear surface of the surface light-emitting light-guiding unit; and a laser-light-ray guiding unit arranged on a side of a rear surface of the surface light-emitting light-guiding unit. The laser-light-ray guiding unit guides the laser light rays emitted from the laser light sources so that the laser light rays enter through a light incident end surface, travel in a direction opposite to a direction in which the LED light source emits the LED light ray, and thereafter are reflected by a light bending part to enter through the light incident surface of the surface light-emitting light-guiding unit.

摘要翻译： 面光源装置包括表面发光导光单元; LED光源，其设置在所述光入射面的方向的一侧的外侧位置; 多个激光源，其设置在所述面状发光导光部的背面的一侧的外侧位置; 以及配置在面发光导光部的背面的一侧的激光光线引导部。 激光光线引导单元引导从激光源射出的激光，使得激光入射到入射端面，与LED光源发射LED的方向相反的方向行进 光线，然后被光弯曲部反射，通过面状发光导光部的光入射面进入。

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：US07677738B2

公开(公告)日：2010-03-16

申请号：US11587699

申请日：2005-04-06

申请人： Muneharu Kuwata ,  Tomohiro Sasagawa ,  Kuniko Kojima ,  Akihiro Yamada

发明人： Muneharu Kuwata ,  Tomohiro Sasagawa ,  Kuniko Kojima ,  Akihiro Yamada

IPC分类号： G03B21/28 ,  G02B3/00 ,  G02B9/00

CPC分类号： G02B17/0852 ,  G02B13/16 ,  G02B17/08 ,  G03B21/10 ,  G03B21/28 ,  H04N5/7408 ,  H04N5/7458

摘要： According to the present invention, an image projector includes a reflecting light valve, a group of refracting lenses forming a projecting optical system that enlarges and projects an optical image given from the light valve, a power mirror having a power and forming the projecting optical system together with the group of refracting lenses, and a transmissive screen for displaying the optical image that is given from the light valve and enlarged by the projecting optical system, wherein the exit pupil position is set such that the minimum angle of view θmin exceeds 40°, and the Petzval partial sum of lenses is set larger than a value determined by the minimum angle of view.

摘要翻译： 根据本发明，图像投影仪包括反射光阀，形成投影光学系统的一组折射透镜，该投影光学系统从光阀放大并投影光学图像，具有电力的功率反射镜，并形成投影光学系统 与折射透镜组一起，以及用于显示从光阀给出并由投影光学系统放大的光学图像的透射屏幕，其中出射光瞳位置被设定为使得最小视角＆min; min超过 40°，并且透镜的Petzval部分和被设置为大于由最小视角确定的值。

公开(公告)号：US08879143B2

公开(公告)日：2014-11-04

申请号：US13505567

申请日：2010-12-08

申请人： Satoru Okagaki ,  Eiji Yokoyama ,  Tomohiro Sasagawa ,  Jun Kondo ,  Muneharu Kuwata ,  Kuniko Kojima ,  Yuzo Nakano

发明人： Satoru Okagaki ,  Eiji Yokoyama ,  Tomohiro Sasagawa ,  Jun Kondo ,  Muneharu Kuwata ,  Kuniko Kojima ,  Yuzo Nakano

IPC分类号： G02B26/00 ,  G02F1/29 ,  G09G3/34

CPC分类号： G03B21/10 ,  G02B5/0242 ,  G02B5/0278 ,  G02B27/48 ,  G02F1/133504 ,  G03B21/60 ,  G03B21/608 ,  G03B21/625

摘要： A screen includes a light diffusion layer in which microcapsules, each having therein a light diffusion liquid that scatters light for displaying a video image, are planarly arranged. The light diffusion layer is fixed to a supporting sheet by a binder material. On a surface of the supporting sheet, a Fresnel lens is formed. A light diffusion plate is made up of the light diffusion layer and the supporting sheet. The screen is made up of the light diffusion plate and a light diffusion plate. Scattering distribution of a scattered wave of light that passes through the light diffusion layer temporally changes.

摘要翻译： 屏幕包括光扩散层，其中各自具有散射用于显示视频图像的光的光漫射液的微胶囊被平面地布置。 光扩散层通过粘合剂材料固定在支撑片材上。 在支撑片的表面上形成菲涅尔透镜。 光扩散板由光扩散层和支撑片构成。 屏幕由光漫射板和光漫射板组成。 通过光扩散层的散射波的散射分布暂时变化。

公开(公告)号：US20070229779A1

公开(公告)日：2007-10-04

申请号：US11587699

申请日：2005-04-06

申请人： Muneharu Kuwata ,  Tomohiro Sasagawa ,  Kuniko Kojima ,  Akihiro Yamada

发明人： Muneharu Kuwata ,  Tomohiro Sasagawa ,  Kuniko Kojima ,  Akihiro Yamada

IPC分类号： G03B21/28 ,  G02B17/08

CPC分类号： G02B17/0852 ,  G02B13/16 ,  G02B17/08 ,  G03B21/10 ,  G03B21/28 ,  H04N5/7408 ,  H04N5/7458

摘要： According to the present invention, an image projector includes a reflecting light valve, a group of refracting lenses forming a projecting optical system that enlarges and projects an optical image given from the light valve, a power mirror having a power and forming the projecting optical system together with the group of refracting lenses, and a transmissive screen for displaying the optical image that is given from the light valve and enlarged by the projecting optical system, wherein the exit pupil position is set such that the minimum angle of view θ min exceeds 40°, and the Petzval partial sum of lenses is set larger than a value determined by the minimum angle of view.

摘要翻译： 根据本发明，图像投影仪包括反射光阀，形成投影光学系统的一组折射透镜，该投影光学系统从光阀放大并投影光学图像，具有电力的功率反射镜，并形成投影光学系统 与折射透镜组一起，以及用于显示从光阀给出并由投影光学系统放大的光学图像的透射屏幕，其中出射光瞳位置被设定为使得最小视角θmin超过40° °，并且透镜的Petzval部分和被设置为大于由最小视角确定的值。