发明名称 |
PLANAR LIGHT SOURCE DEVICE |
摘要 |
A light guide plate includes a light introducing portion which is positioned facing a point light source and which confines light, and a light guide plate body which is thinner than a maximum thickness of the light introducing portion and which causes a light exit means to emit the confined light outward. The light introducing portion has an inclined face which is inclined from a portion having the maximum thickness to a surface of the light guide plate body. The inclined face includes a directivity converting pattern for converting a directional characteristic of the light that has entered the light introducing portion. The directivity converting pattern's structure includes a plurality of V-shaped grooves. An inscribed circle of the directivity converting pattern passes through both ends of a light exit window of the point light source. |
申请公布号 |
KR20110086612(A) |
申请公布日期 |
2011.07.28 |
申请号 |
KR20117013817 |
申请日期 |
2009.11.30 |
申请人 |
OMRON CORPORATION |
发明人 |
KURATA GOUO;HIROTA KAZUHIDE |
分类号 |
F21V8/00;G02B6/00;G02F1/13357 |
主分类号 |
F21V8/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|