发明名称 |
VERLICHTINGSEENHEID MET LICHTGEVEND OPPERVLAK. |
摘要 |
A surface luminous lighting unit has a light panel comprising a plurality of light guiding plates laminated in different lengths. The longer side of the light panel is made shorter than the distance between filaments of a lamp, and longer than the distance between the portions where a luminance of the lamp is equal to 75% of the maximum luminance of the lamp. The surface luminous lighting unit comprises a light guide which comprises a plurality of light guiding plates in different length laminated in such a manner that the sides of those plates where light enters are made level with each other, where the other sides thereof are arranged in a step-like. A linear light source is affixed to the light entering side of the light guide, and a reflector is affixed to the light exiting side of the light guide in such a manner as to extend thereover. |
申请公布号 |
NL9201110(A) |
申请公布日期 |
1993.01.18 |
申请号 |
NL19920001110 |
申请日期 |
1992.06.24 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA TE TOKIO, JAPAN. |
发明人 |
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分类号 |
F21S8/00;F21V8/00;F21V13/02;F21V21/30;F21V23/00;F21V33/00;G02B6/00;G09F9/00;G09F13/18 |
主分类号 |
F21S8/00 |
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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