公开(公告)号：US20120026753A1

公开(公告)日：2012-02-02

申请号：US13094483

申请日：2011-04-26

Applicant: Mikio SHIRAISHI ,  Yoshihide Yokoyama ,  Shogo Watanabe

Inventor： Mikio SHIRAISHI ,  Yoshihide Yokoyama ,  Shogo Watanabe

IPC: F21V7/22

CPC classification number: G02B6/0091 ,  G02B6/0021 ,  G02B6/0075

Abstract: An illumination device for guiding light rays from a light-emitting diode (LED) module toward a light guide plate to thereby perform planar illumination is disclosed. The illumination device includes a printed circuit board with a plurality of LED elements attached thereto. The circuit board has two or more positioning bosses which are attached in the same process as that of the LEDs. While letting the positioning bosses be tightly coupled with corresponding holes provided in the light guide plate, the circuit board and the light guide plate are adhered and fixed together, thereby accurately retaining the positional relationship between the LEDs and the light guide plate.

Abstract translation: 公开了一种用于将来自发光二极管（LED）模块的光线引向导光板从而进行平面照明的照明装置。 照明装置包括具有附接到其上的多个LED元件的印刷电路板。 电路板具有两个或更多个与LED相同的定位凸台。 在使定位凸台与设置在导光板中的相应孔紧密耦合的同时，将电路板和导光板粘合固定在一起，从而精确地保持LED和导光板之间的位置关系。

公开(公告)号：US20130050990A1

公开(公告)日：2013-02-28

申请号：US13567762

申请日：2012-08-06

Applicant: Mikio SHIRAISHI ,  Masayuki TANABE ,  Mika TANIMURA ,  Shoji YAMAMOTO ,  Kenji TAKANO ,  Yoshifumi SHIMANE ,  Yasuaki OHARA ,  Reiji NAKAMURA

Inventor： Mikio SHIRAISHI ,  Masayuki TANABE ,  Mika TANIMURA ,  Shoji YAMAMOTO ,  Kenji TAKANO ,  Yoshifumi SHIMANE ,  Yasuaki OHARA ,  Reiji NAKAMURA

IPC: G09F13/04 ,  F21V1/02

CPC classification number: G02B6/0031 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/0036 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0078

Abstract: An illumination unit of the present invention includes a tabular light guide plate having a light emitting surface for emitting light coming from an LED as planar light, wherein a recessed portion is formed in the opposite surface of the light emitting surface of the light guide plate, and wherein the LED is provided in the recessed portion so that the optical axis of the LED becomes parallel to the light emitting surface of the light guide plate. Then, a dimming pattern is provided at a location corresponding to the LED of the light emitting surface of the light guide plate, and the dimming pattern includes a main portion covering the LED on the light emitting surface side, and protrusions radially extending toward a light emitting direction of the LED around the LED.

Abstract translation: 本发明的照明单元包括具有发光面的板状导光板，该发光面用于发射来自LED的光作为平面光，其中在导光板的发光面的相对面上形成有凹部， 并且其中所述LED设置在所述凹部中，使得所述LED的光轴变得平行于所述导光板的发光表面。 然后，在与导光板的发光面的LED相对应的位置处设置调光图案，并且调光图案包括覆盖发光面侧的LED的主要部分和朝向光的径向延伸的突起 LED周围的发光方向。