发明授权
- 专利标题: Light panel with enlarged viewing window
- 专利标题(中): 灯面板放大观景窗
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申请号: US10227228申请日: 2002-08-23
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公开(公告)号: US06988813B2公开(公告)日: 2006-01-24
- 发明人: Christoph Gerard August Hoelen , Gerard Harbers
- 申请人: Christoph Gerard August Hoelen , Gerard Harbers
- 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
- 优先权: EP01203237 20010827
- 主分类号: F21V8/00
- IPC分类号: F21V8/00
摘要:
The invention relates to a light panel (12), comprising: a light guide having a front surface defining a viewing window (11), a back surface and sides (3, 4) between the front and back surfaces; and a patterned array of light sources (8, 9, 10) of at least two types, which types are distinguished by the color of light emitted by the light sources of said at least two types, said array being arranged along at least one of the sides. Each light source generates in use a divergent light beam of a color into the panel to, in combination, color the panel. Further, the array comprises complementary sub-arrays (8, 9, 8, 9 & 9, 10, 9, 10) of light sources along at least two of the sides. Since the sub-arrays are complementary, in that by all light sources of the different types the same amount of light is emitted into the light guide as in prior art single array configurations (the same number of light sources), but from two or more sides while maintaining the general light source pitch, the average distance or pitch between light sources of one of the types, can be decreased. Therewith also the required distance or colors for color mixing is lessened and the viewing window is enlarged.
公开/授权文献
- US20030043567A1 Light panel with enlarged viewing window 公开/授权日:2003-03-06
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