Patent ID: 8324789
Filing Date: 2012-12-04
Classification: F21K,F21V,F21Y

Abstract:
1. A self-ballasted lamp comprising: a light-emitting module having a light-emitting portion in which a plurality of semiconductor light-emitting elements are mounted on one face of a substrate; a base body which has a base body portion and a plurality of heat radiating fins provided on the circumference of the base body portion and that the light-emitting module is thermally-conductively brought into contact with one end side of the base body portion; a globe which is provided on one end side of the base body so as to cover the light-emitting module; a cap provided on the other end side of the base body; and a lighting circuit housed between the base body and the cap, wherein the lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm