Self-ballasted lamp and lighting equipment
AssigneesToshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
InventorsMakoto SAKAI, Toshiya Tanaka, Keiichi Shimizu, Hitoshi Kawano
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Abstract
The invention provides a self-ballasted lamp having high heat radiation performance, which is lightweight and inexpensive. A substrate having LED elements mounted is provided at one edge side of the radiator, and a cap is provided at the other edge side the radiator. A lighting circuit is accommodated between the radiator and the cap. The radiator includes a cylindrical cover member and an annular radiation member fitted to the outer circumferential part of the cover member and is composed by combining the cover member and the radiation member together. The cover member and the radiation member are made of metal and are formed by press-working.
Claims4
A self-ballasted lamp comprising:
- a substrate having semiconductor light-emitting elements mounted on one edge side thereof;
- A metal-made radiator formed by press-working and having one edge side thereof with which the other edge side of the substrate is brought into contact so as to enable heat conduction;
- a cap secured at the other edge side of the radiator;
- and
- a lighting circuit accommodated between the radiator and the cap;
Dependencies are inferred from the claim text.