发明名称 |
ILLUMINATION APPARATUS |
摘要 |
A point light source is converted into a plane light source having a satisfactory uniformity. The point light source is converted into a line light source by means of a linear light guiding plate, and further into the plane light source by means of a plane-like light guiding plate. Light from the point light source is reflected at a lamp reflector to be incident on at least two side surfaces of the plane-like light guiding plate.
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申请公布号 |
US2009316069(A1) |
申请公布日期 |
2009.12.24 |
申请号 |
US20090552303 |
申请日期 |
2009.09.02 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KIMURA HAJIME;SATAKE RUMO |
分类号 |
G02F1/1335;F21V7/22;F21V8/00 |
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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