发明名称 |
Light guide for use in a keypad |
摘要 |
A light guide for a keypad includes a plurality of through hole portions adapted to correspond respectively to keys on the keypad. Each of the through hole portions is adapted to receive at least a part of the corresponding key, and to receive light incident thereinto from at least one light source. Each of selected ones of the through hole portions has a contour with a non-curved contour portion that includes a light incident face and a reflecting face forming an angle with the light incident face. Light incident on the reflecting face is reflected into at least one other through hole portion. The light guide can also be configured to have a tree-like structure.
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申请公布号 |
US7543971(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20070723377 |
申请日期 |
2007.03.16 |
申请人 |
LITE-ON TECHNOLOGY CORPORATION |
发明人 |
LEE KUN-NENG;TSENG YI-HSIANG |
分类号 |
F21V7/04 |
主分类号 |
F21V7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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