
基本信息:
- 专利标题: 导光板、面光源装置及透过型图像显示装置
- 专利标题(英):Optical waveguide plate, surface light source apparatus and transmission type image display apparatus
- 申请号:CN201220560260.0 申请日:2012-10-29
- 公开(公告)号:CN203069816U 公开(公告)日:2013-07-17
- 发明人: 百田健太郎 , 关口泰广 , 岛田芳永
- 申请人: 住友化学株式会社 , 世联股份有限公司
- 申请人地址: 日本东京都
- 专利权人: 住友化学株式会社,世联股份有限公司
- 当前专利权人: 住友化学株式会社,世联股份有限公司
- 当前专利权人地址: 日本东京都
- 代理机构: 北京集佳知识产权代理有限公司
- 代理人: 舒艳君; 李伟
- 优先权: 2011-237790 2011.10.28 JP
- 主分类号: G02B6/00
- IPC分类号: G02B6/00 ; F21V8/00 ; G02F1/13357
The invention relates to an optical waveguide plate, a surface light source apparatus and a transmission type image display apparatus, which can reduce gray level inequality generated near a light inlet portion of incident light. The optical waveguide plate comprises an optical waveguide plate base material (11) of transmission light, and has a plurality of light reflection points (12) formed on at least one surface of the optical waveguide plate. A point forming surface (S2) which equidistantly and virtually forms the light reflection point can be divided to various virtual grids (g), various virtual grids (g) enable regular two dimension arrangement in various virtual areas (A), the light reflection points can be formed in the regular virtual grids of various virtual grids, the configuration of the light reflection points in one virtual area in various virtual grids and the configuration of the light reflection points in at least one virtual area in rest various virtual areas can form a light distribution pattern with translational symmetry performance, and various light reflection points are formed on the point forming surface (S2).
IPC结构图谱:
G | 物理 |
--G02 | 光学 |
----G02B | 光学元件、系统或仪器 |
------G02B6/00 | 光导;包含光导和其他光学元件(如耦合器)的装置的结构零部件 |