| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost LED lamp that is used an alternative to a circular fluorescent lamp. <P>SOLUTION: The LED lamp A comprises a substrate 3A with a predetermined thickness, and a plurality of LED modules 4 mounted on a surface of the substrate 3A. The substrate 3A is annularly formed by combining a plurality of curved substrates 3 formed in an arc shape. The plurality of curved substrates 3 have a predetermined width radially, and a curvature of a radial outer side edge 31 and a curvature of a radial inner side edge 32 are equal viewed from the thickness direction of the substrate 3A. <P>COPYRIGHT: (C)2010,JPO&INPIT |
