发明授权
- 专利标题： Light guide and light-output device
- 专利标题（中）： 导光灯和光输出装置
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申请号： US12594639申请日： 2008-04-09
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公开(公告)号： US08414162B2公开(公告)日： 2013-04-09
- 发明人: Fetze Pijlman , Willem Lubertus Ijzerman , Hugo Johan Cornelissen , Marcellinus Petrus Carolus Michael Krijn , Ramon Pascal Van Gorkom , Oscar Hendrikus Willemsen , Michel Cornelis Josephus Marie Vissenberg
- 申请人： Fetze Pijlman , Willem Lubertus Ijzerman , Hugo Johan Cornelissen , Marcellinus Petrus Carolus Michael Krijn , Ramon Pascal Van Gorkom , Oscar Hendrikus Willemsen , Michel Cornelis Josephus Marie Vissenberg
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人地址： NL Eindhoven
- 代理商 John F. Salazar; Mark L. Beloborodov
- 优先权： EP07106023 20070412
- 国际申请： PCT/IB2008/051338 WO 20080409
- 国际公布： WO2008/126011 WO 20081023
- 主分类号： F21V5/02
- IPC分类号： F21V5/02
摘要：
A light guide (11; 101; 111) comprising first and second oppositely arranged faces, an in-coupling portion (13a-f) for in-coupling of light from a light-source (12a-f; 95a-f; 102; 106a-c; 112a-f), and an out-coupling portion (15a-f; 103; 113a-f) located adjacent to the in-coupling portion (13a-f). The out-coupling portion (15a-f; 103; 113a-f) is configured to out-couple a primary light beam having a direction of propagation directed from a position in the in-coupling portion (13a-f) with a lower out-coupling efficiency than a secondary light beam having a direction of propagation directed from a position in the light guide (11; 101; 111) outside the in-coupling portion (13a-f). In this manner, a good mixing of light in the light guide can be achieved without imposing any particular requirements on the collimation of the in-coupled light.
公开/授权文献
- US20100046219A1 LIGHT GUIDE AND LIGHT-OUTPUT DEVICE 公开/授权日：2010-02-25
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