Patent ID: 8721125
Filing Date: 2014-05-13
Classification: F21K,F21V,F21Y,H05B

Abstract:
1. A self-ballasted lamp comprising: a substrate; semiconductor light-emitting elements mounted on a first surface of the substrate; a metal-made radiator comprising: a cylindrical exterior radiation part formed by press-working and comprising a wave-shaped radiation part, a cylindrical cover part with an accommodating space formed therein, and an annular flange extending from a surface of the cylindrical cover part, wherein the cylindrical exterior radiation part is in contact with the cylindrical cover part and the annular flange, and wherein a surface of the flange contacts a second surface of the substrate so as to enable heat conduction; a cap secured at a second edge side of the radiator; and a lighting circuit accommodated between in the accommodating space of the radiation part.