发明名称 |
Illuminating device for illuminating background surfaces |
摘要 |
An illuminating device for illuminating a background surface of a surface display has a frame with inner reflecting surfaces. A circuit board with leads closes off the interior of the frame. The circuit board is made of a light-transmissive material and serves as the background surface to be illuminated. The circuit board comprises leads and light-emitting diode chips connected to the leads so as to be controllable. A scattering body in the form of a light-transmissive potting compound containing scattering centers is filled into the interior of the frame. The circuit board is preferably a circuit board with a cover layer of a non-light-transmissive material from which the coating of non-light-transmissive material has been removed by etching. The scattering centers are preferably in the form of glass particles.
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申请公布号 |
US5367441(A) |
申请公布日期 |
1994.11.22 |
申请号 |
US19930017865 |
申请日期 |
1993.02.16 |
申请人 |
WUSTLICH HOLDING GMBH |
发明人 |
WUSTLICH, HANS-DIETER |
分类号 |
F21S8/10;G09F13/00;G09F13/04;(IPC1-7):G09F13/04 |
主分类号 |
F21S8/10 |
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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