| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lighting device forming a uniform bright area on the face of a light guide cover, of light weight with material cost restrained, excellent in mass production properties, and excellent in heat dissipation properties. <P>SOLUTION: The LED lighting device includes a plurality of LEDs, a substrate supporting the plurality of LEDs, and a light guide cover equipped with an elliptical inner wall molded in accordance with an equivalent irradiation intensity shape of light emitted by the plurality of LEDs. <P>COPYRIGHT: (C)2010,JPO&INPIT |
