基本信息:
- 专利标题: 交叉型導光路
- 专利标题(英):Crossover optical guide path
- 专利标题(中):交叉型导光路
- 申请号:TW097136888 申请日:2008-09-25
- 公开(公告)号:TW200931088A 公开(公告)日:2009-07-16
- 发明人: 伊勢和貴 ISE, KAZUTAKA , 伊藤直樹 ITO, NAOKI
- 申请人: 阿爾普士電氣股份有限公司 ALPS ELECTRIC CO., LTD.
- 申请人地址: 日本
- 专利权人: 阿爾普士電氣股份有限公司 ALPS ELECTRIC CO., LTD.
- 当前专利权人: 阿爾普士電氣股份有限公司 ALPS ELECTRIC CO., LTD.
- 当前专利权人地址: 日本
- 代理人: 林志剛
- 优先权: 日本 2007-251403 20070927
- 主分类号: G02B
- IPC分类号: G02B
Provided is a crossover optical guide path, which can make the luminescence loss of the crossover of two or more guide paths less than that of the prior art with a simple constitution. With respect to the width size (d) of the incidence-side guide path (11A) and the width size (d) of the emission-side guide path (11B) of a first guide path (11), the width size (W1) of the emission-side guide path (11B) and the width size (W2) of the emission-side guide path (11B) of the first guide path (11) are set to d < W1 = W2. In the first guide path (11), most of the light, which is emitted from the incidence-side guide path (11A) and transmitted via a crossover (13), is acquired without any leakage by the emission-side guide path (11B). In a second guide path (12), most of the light, which is emitted from an incidence-side guide path (12A) and transmitted via the crossover (13), is acquired without any leakage by an emission-side guide path (12B). As a result, the luminescence loss can be drastically reduced.