发明名称 |
Light source |
摘要 |
A display device (19) such as a light box comprises: a housing (2); a light source (20) accommodated in this housing; and at least one diffusely translucent display face (6) illuminated by the light from this light source (20). The light source is a LED-module. Respective orienting means are added to each LED of the light source (20) so as to obtain a directional characteristic of the light emitted by the light source (20) such that the light source directly illuminates at least one wall (18) almost exclusively. This at least one wall (18) is diffusely reflective such that a part of the light incident thereon is reflected to the display face (6). This has an almost constant luminance as a result. |
申请公布号 |
EP2390866(A2) |
申请公布日期 |
2011.11.30 |
申请号 |
EP20110173044 |
申请日期 |
2006.10.11 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
MEULENBELT, MATTHIJS DIRK |
分类号 |
G02F1/1335;G09F13/04;G09F13/14;G09F13/22 |
主分类号 |
G02F1/1335 |
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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