公开(公告)号：US20120002136A1

公开(公告)日：2012-01-05

申请号：US13231226

申请日：2011-09-13

申请人： Takayuki NAGATA ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

发明人： Takayuki NAGATA ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

IPC分类号： G02F1/13357 ,  F21V14/06 ,  F21V14/04 ,  F21V14/00

CPC分类号： G02B6/0036 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0041 ,  G02F1/133603 ,  G02F1/133615

摘要： A planar illumination device for illuminating a liquid crystal display panel provided with a polarizing plate on a light incident side, includes: a light source unit for emitting light having a specified polarization direction; and a light irradiating member for deflecting light emitted from the light source unit and irradiating the liquid crystal display panel with the deflected light, wherein the light irradiating member deflects the light emitted from the light source unit such that the polarization direction of the light emitted from the light source unit substantially coincides with a transmission axis direction of the polarizing plate of the liquid crystal display panel.

摘要翻译： 一种用于照亮在光入射侧设置有偏振片的液晶显示面板的平面照明装置，包括：用于发射具有指定偏振方向的光的光源单元; 以及光照射部件，用于偏转从光源单元发射的光并用偏转光照射液晶显示面板，其中光照射部件使从光源单元发射的光偏转，使得从光源单元发射的光的偏振方向 光源单元基本上与液晶显示面板的偏振板的透射轴方向一致。

公开(公告)号：US08029179B2

公开(公告)日：2011-10-04

申请号：US12443881

申请日：2007-09-25

申请人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

IPC分类号： F21V7/04 ,  G02F1/1335

CPC分类号： G02B6/0046 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0031 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/4025

摘要： Laser lights emitted from a light source 30 are diffused in a direction parallel to main surfaces of a light guide plate 9 by a one-dimensional diffuser 5. The diffused laser lights are converted to parallel lights by a first cylindrical lens 6, and are then converged in a direction of the thickness of the light guide plate 9 by a second cylindrical lens 7. The converged laser lights are reflected 90 degrees twice by a mirror 8, and are guided to a side surface of the light guide plate 9.

摘要翻译： 从光源30发射的激光通过一维散射体5在与导光板9的主表面平行的方向上扩散。扩散的激光由第一柱面透镜6转换为平行光，然后是 通过第二柱面透镜7在导光板9的厚度方向上会聚。会聚的激光由反射镜8反射90度两次，并被引导到导光板9的侧表面。

公开(公告)号：US07798660B2

公开(公告)日：2010-09-21

申请号：US12062407

申请日：2008-04-03

申请人： Tatsuo Itoh ,  Takayuki Nagata ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Takayuki Nagata ,  Kazuhisa Yamamoto

IPC分类号： F21V9/14 ,  G02F1/1335

CPC分类号： G02B6/0056 ,  G02B6/0028 ,  G02B27/285

摘要： A surface illumination apparatus includes: a light source; an end-surface light-guide portion which guides light emitted from the light source in a long-side direction thereof and generates emitted light in a short-side direction thereof; and a light guide plate which allows the emitted light to be incident upon an end-surface portion thereof and emits the incident light from one main-surface portion thereof. The end-surface light-guide portion includes a plurality of polarization control portions arranged in the long-side direction; the plurality of polarization control portions each has a half-wave plate and a polarizing prism; the end-surface light-guide portion emits the emitted light in the form of either of S-polarized light and P-polarized light, using the plurality of polarization control portions; and the light guide plate emits, as output light, either of S-polarized light and P-polarized light from the one main-surface portion.

摘要翻译： 一种表面照明装置，包括：光源; 端面导光部，其在长边方向上引导从光源发射的光，并在短边方向产生发光; 以及允许发射的光入射在其端面部分上并从其一个主表面部分发射入射光的导光板。 端面导光部包括沿长边方向配置的多个偏光控制部， 所述多个偏振控制部各自具有半波片和偏振棱镜; 使用多个偏振控制部，端面导光部以S偏振光和P偏振光的形式发射发光; 并且导光板从一个主表面部分发射S偏振光和P偏振光中的任一个作为输出光。

公开(公告)号：US20100014022A1

公开(公告)日：2010-01-21

申请号：US12439435

申请日：2007-09-18

申请人： Takayuki Nagata ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

发明人： Takayuki Nagata ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

IPC分类号： G02F1/1335 ,  F21V7/04

CPC分类号： G02B6/0036 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0041 ,  G02F1/133603 ,  G02F1/133615

摘要： A planar illumination device for illuminating a liquid crystal display panel provided with a polarizing plate on a light incident side, includes: a light source unit for emitting light having a specified polarization direction; and a light irradiating member for deflecting light emitted from the light source unit and irradiating the liquid crystal display panel with the deflected light, wherein the light irradiating member deflects the light emitted from the light source unit such that the polarization direction of the light emitted from the light source unit substantially coincides with a transmission axis direction of the polarizing plate of the liquid crystal display panel.

摘要翻译： 一种用于照亮在光入射侧设置有偏振片的液晶显示面板的平面照明装置，包括：用于发射具有指定偏振方向的光的光源单元; 以及光照射部件，用于偏转从光源单元发射的光并用偏转光照射液晶显示面板，其中光照射部件使从光源单元发射的光偏转，使得从光源单元发射的光的偏振方向 光源单元基本上与液晶显示面板的偏振板的透射轴方向一致。

公开(公告)号：US08317386B2

公开(公告)日：2012-11-27

申请号：US12374939

申请日：2007-07-23

申请人： Takayuki Nagata ,  Shinichi Kadowaki ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

发明人： Takayuki Nagata ,  Shinichi Kadowaki ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

IPC分类号： F21V7/04 ,  G02B27/10

CPC分类号： G02B6/003 ,  G02B5/045 ,  G02B6/0031 ,  G02B6/0061 ,  G02B6/0068

摘要： A planar illumination device includes an optical element outputting a diffusing light from a laser light source into an incident edge surface of a light guide plate. The optical element provides an output substantially parallel to a thickness direction of the light guide plate. A light deflecting unit, including a plurality of deflectors, is provided on a principal surface of the light guide plate for deflecting incident laser light towards an output surface of the light guide. The light deflecting unit is arranged such that a degree of deflection of the light incident on the light guide plate differs according to positions in the light guide plate, to make an amount of light outputted from the output surface uniform across such output surface.

摘要翻译： 平面照明装置包括将来自激光光源的漫射光输出到导光板的入射边缘表面的光学元件。 光学元件提供基本上平行于导光板的厚度方向的输出。 包括多个偏转器的光偏转单元设置在导光板的主表面上，用于将入射的激光朝向光导的输出表面偏转。 光偏转单元被布置成使得入射在导光板上的光的偏转程度根据导光板中的位置而不同，以使从输出表面输出的光量在该输出表面上均匀。

公开(公告)号：US07918600B2

公开(公告)日：2011-04-05

申请号：US12183420

申请日：2008-07-31

申请人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

发明人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

IPC分类号： F21V7/04

CPC分类号： G02B6/0028 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0068

摘要： A thin planar illumination device with a high light utilization efficiency is provided. In a planar illumination device 10, light source sections 15, 16, 17 and 18 each radiates laser light. The light guide members 19 and 20 polarize, by total reflection, light incident from side surfaces 19b and 20b on two opposite sides thereof, so as to be radiated from incident surfaces 19a and 20a, respectively. In a light guide plate 21, the light is incident from side surfaces beside the respective light guide members 19 and 20 so as to radiate irradiation light 24 from main surfaces 21a and 21b. The main surface of the light guide plate 21 is formed by a plurality of inclined surfaces, each being gradually thinned from the edge surfaces on two sides thereof toward a center thereof.

摘要翻译： 提供了具有高光利用效率的薄平面照明装置。 在平面照明装置10中，光源部15,16,17,18分别照射激光。 导光构件19和20通过全反射使从侧表面19b和20b的两个相对侧入射的光分别偏振，以便从入射表面19a和20a辐射。 在导光板21中，光从各导光体19,20的旁边的侧面入射，从而从主表面21a和21b辐射照射光24。 导光板21的主表面由多个倾斜表面形成，每个倾斜表面从其两侧的边缘表面朝向其中心逐渐变薄。

公开(公告)号：US20090040787A1

公开(公告)日：2009-02-12

申请号：US12183420

申请日：2008-07-31

申请人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

发明人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

IPC分类号： F21V8/00

CPC分类号： G02B6/0028 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0068

摘要： A thin planar illumination device with a high light utilization efficiency is provided. In a planar illumination device 10, light source sections 15, 16, 17 and 18 each radiates laser light. The light guide members 19 and 20 polarize, by total reflection, light incident from side surfaces 19b and 20b on two opposite sides thereof, so as to be radiated from incident surfaces 19a and 20a, respectively. In a light guide plate 21, the light is incident from side surfaces beside the respective light guide members 19 and 20 so as to radiate irradiation light 24 from main surfaces 21a and 21b. The main surface of the light guide plate 21 is formed by a plurality of inclined surfaces, each being gradually thinned from the edge surfaces on two sides thereof toward a center thereof.

摘要翻译： 提供了具有高光利用效率的薄平面照明装置。 在平面照明装置10中，光源部15,16,17,18分别照射激光。 导光构件19和20通过全反射使从侧表面19b和20b的两个相对侧入射的光分别偏振，从而从入射表面19a和20a分别辐射。 在导光板21中，光从各导光体19,20的旁边的侧面入射，从而从主表面21a和21b辐射照射光24。 导光板21的主表面由多个倾斜表面形成，每个倾斜表面从其两侧的边缘表面朝向其中心逐渐变薄。

公开(公告)号：US08201982B2

公开(公告)日：2012-06-19

申请号：US12525741

申请日：2008-12-05

申请人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

发明人： Takayuki Nagata ,  Kazuhisa Yamamoto ,  Tatsuo Itoh

IPC分类号： F21V8/00

CPC分类号： G02B6/0028 ,  G02B6/0048 ,  G02B6/008 ,  G02B6/04 ,  G02B6/08 ,  G02B6/3512 ,  G02B6/352 ,  G02B6/3596 ,  G02B2006/1213

摘要： A planar illumination device is provided with a plurality of light guide paths, on which scanned light in different scanning sections of a scanning range by a scanning unit is respectively incident, and an illumination unit having a plurality of emission regions for emitting the light guided by the respective light guide paths. The number of the emission regions is 2 or more and 1000 or less, and the respective emission regions successively become luminous as the scanned light is incident on the respective light guide paths.

摘要翻译： 平面照明装置设置有多个导光路径，扫描单元在扫描范围的不同扫描部分中的扫描光分别入射到其上，并且具有多个发射区域的照明单元，所述发光区域用于发射由 各个导光路径。 发光区域的数量为2以上且1000以下，并且随着扫描光入射到各个导光路径，各发光区域依次发光。

公开(公告)号：US08040458B2

公开(公告)日：2011-10-18

申请号：US12439435

申请日：2007-09-18

申请人： Takayuki Nagata ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

发明人： Takayuki Nagata ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

IPC分类号： G02F1/1335 ,  F21V7/04

CPC分类号： G02B6/0036 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0041 ,  G02F1/133603 ,  G02F1/133615

摘要： A planar illumination device for illuminating a liquid crystal display panel provided with a polarizing plate on a light incident side, includes: a light source unit for emitting light having a specified polarization direction; and a light irradiating member for deflecting light emitted from the light source unit and irradiating the liquid crystal display panel with the deflected light, wherein the light irradiating member deflects the light emitted from the light source unit such that the polarization direction of the light emitted from the light source unit substantially coincides with a transmission axis direction of the polarizing plate of the liquid crystal display panel.

摘要翻译： 一种用于照亮在光入射侧设置有偏振片的液晶显示面板的平面照明装置，包括：用于发射具有指定偏振方向的光的光源单元; 以及光照射部件，用于偏转从光源单元发射的光并用偏转光照射液晶显示面板，其中光照射部件使从光源单元发射的光偏转，使得从光源单元发射的光的偏振方向 光源单元基本上与液晶显示面板的偏振板的透射轴方向一致。

公开(公告)号：US20100045894A1

公开(公告)日：2010-02-25

申请号：US12443881

申请日：2007-09-25

申请人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

IPC分类号： G02F1/1335 ,  F21V7/04

CPC分类号： G02B6/0046 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0031 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/4025

摘要： Laser lights emitted from a light source 30 are diffused in a direction parallel to main surfaces of a light guide plate 9 by a one-dimensional diffuser 5. The diffused laser lights are converted to parallel lights by a first cylindrical lens 6, and are then converged in a direction of the thickness of the light guide plate 9 by a second cylindrical lens 7. The converged laser lights are reflected 90 degrees twice by a mirror 8, and are guided to a side surface of the light guide plate 9.

摘要翻译： 从光源30发射的激光通过一维散射体5在与导光板9的主表面平行的方向上扩散。扩散的激光由第一柱面透镜6转换为平行光，然后是 通过第二柱面透镜7在导光板9的厚度方向上会聚。会聚的激光由反射镜8反射90度两次，并被引导到导光板9的侧表面。