发明名称 |
Led unit and illumination apparatus using same |
摘要 |
An LED unit includes a plate-shaped base; a light-emitting device placed on a surface of the base and having one or more LED chips; and a cover mounted to the base at a location above a front side of the light-emitting device and having a function to transmit light emitted from the light-emitting device. The base has on the surface thereof an annular groove for receiving a seal therein, and the cover has on a surface thereof directed to the base an annular protruding part, the annular protruding part being inserted into the annular groove to seal the base and the cover through the seal. A distance between the protruding part and the groove in a width direction of the groove is shorter in a section of the groove than the other sections of the groove. |
申请公布号 |
EP2492591(B1) |
申请公布日期 |
2014.07.16 |
申请号 |
EP20120001062 |
申请日期 |
2012.02.17 |
申请人 |
PANASONIC CORPORATION |
发明人 |
NAGAOKA, SHINICHI;YOSIDA, MASAHIKO;KITAGUCHI, YUTAKA |
分类号 |
F21V31/00;F21S8/02;F21S8/06;F21V19/00;F21Y101/02 |
主分类号 |
F21V31/00 |
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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