公开(公告)号：US20140146562A1

公开(公告)日：2014-05-29

申请号：US14232136

申请日：2012-06-13

申请人： Takeshi Ishida ,  Ryuzo Yuki ,  Yoshitsugu Kawahigashi ,  Ichiro Umekawa ,  Shugo Yagi

发明人： Takeshi Ishida ,  Ryuzo Yuki ,  Yoshitsugu Kawahigashi ,  Ichiro Umekawa ,  Shugo Yagi

IPC分类号： F21V8/00

CPC分类号： G02B6/0086 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0053 ,  G02B6/0088

摘要： A backlight unit comprises a light source, a light guide plate and a frame. The light guide plate comprises a light guide and a low-refractive-index layer. The refractive index of the low-refractive-index layer is less than the refractive index of the light guide. A plurality of prisms for gradually reducing the angle of incidence of light coming from the light source with respect to the rear surface of the light guide are provided to the front surface or rear surface of the light guide. A plurality of prisms for totally reflecting forward the light coming from the light source are provided to the rear surface of the light guide plate. The frame comprises walls for surrounding the light source and the light guide plate. The width of the upper side of the walls and the width of the lower side thereof are substantially equal.

摘要翻译： 背光单元包括光源，导光板和框架。 导光板包括光导和低折射率层。 低折射率层的折射率小于导光体的折射率。 用于逐渐减小光源相对于光导的后表面的光的入射角的多个棱镜被提供到光导的前表面或后表面。 用于将来自光源的光全反射的多个棱镜设置在导光板的后表面。 框架包括围绕光源和导光板的壁。 壁的上侧的宽度和其下侧的宽度基本相等。

公开(公告)号：US20140133181A1

公开(公告)日：2014-05-15

申请号：US14232142

申请日：2012-06-11

申请人： Takeshi Ishida ,  Ryuzo Yuki ,  Yoshitsugu Kawahigashi ,  Ichiro Umekawa ,  Shugo Yagi

发明人： Takeshi Ishida ,  Ryuzo Yuki ,  Yoshitsugu Kawahigashi ,  Ichiro Umekawa ,  Shugo Yagi

IPC分类号： F21V8/00

CPC分类号： G02B6/0036 ,  F21Y2103/10 ,  F21Y2115/10 ,  G02B6/0038 ,  G02B6/0053

摘要： This illumination device (20) is provided with: a light guide plate (30) that guides the light entering from an entrance surface (30a), and radiates it from an exit surface (30b); and a frame-shaped frame (25) that supports the outer periphery of the light guide plate (30). The light guide plate (30) has: a light guide portion (35) that, in parallel along the optical axis direction (X), is provided with prisms (33) containing an inclined surface (33b) that faces and is inclined with respect to the entrance surface (30a); a low-refractive-index-layer (36) having a lower refractive index than the light guide portion (35); and a light-collecting portion (37) that is provided in parallel along the optical axis direction (X) with prisms (38) that contain an inclined surface (38b) that faces and is inclined with respect to the entrance surface (30a). The frame (25) is formed from a light absorbing material.

摘要翻译： 该照明装置（20）具备：引导从入射面（30a）入射的光并从出射面（30b）照射的光的导光板（30）。 以及支撑导光板（30）的外周的框状框架（25）。 导光板（30）具有：导光部（35），其沿着光轴方向（X）平行地设置有棱镜（33），棱镜（33）包含倾斜面（33b），倾斜面 到所述入口表面（30a）; 具有比导光部分（35）低的折射率的低折射率层（36）; 以及聚光部（37），其沿着光轴方向（X）平行设置有棱镜（38），所述棱镜包含相对于所述入射面（30a）倾斜的倾斜面（38b）。 框架（25）由光吸收材料形成。

公开(公告)号：US20130194823A1

公开(公告)日：2013-08-01

申请号：US13878806

申请日：2011-10-12

申请人： Shugo Yagi ,  Takeshi Suzuki ,  Toru Inata

发明人： Shugo Yagi ,  Takeshi Suzuki ,  Toru Inata

IPC分类号： F21V8/00

CPC分类号： G02B6/005 ,  G02B6/0038 ,  G02B6/0053

摘要： A backlight unit includes a light source capable of emitting light, and a light guide plate including a peripheral surface on which the light from the light source is incident, a main surface provided to be connected with the peripheral surface, and a main surface facing the main surface with the peripheral surface interposed therebetween, the light guide plate including a reflection surface capable of reflecting the light that has entered from the peripheral surface toward the main surface, and a lens formed on the main surface capable of condensing the light reflected by the reflection surface and emitting the light to outside.

摘要翻译： 背光单元包括能够发光的光源，以及导光板，该导光板包括从光源入射的外周面，与外周面连接的主表面， 所述导光板包括能够将从外周面朝向主面反射的光的反射面和形成在所述主面上的透镜，所述透镜能够会聚由所述主面反射的光， 反射面并将光发射到外部。