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US 2010/0244694 A1Published application
Lamp having outer shell to radiate heat of light source
AssigneeToshiba Lighting & Technology Corporation
InventorsSHIGERU OSAWA, Kazuto Morikawa
Life of this patent
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Abstract
A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.
Claims10
A lamp comprising:
- an outer shell with heat conductivity which includes a light source support, a heat radiating surface exposed to the outside of the outer shell, and a receptacle provided inside the heat radiating surface, and the light source support formed integrally with the heat radiating surface;
- a base coupled to the outer shell;
- a heat generating light source which is supported on the light source support, and thermally connected to the light source support;
- a lighting circuit which lights the light source, the lighting circuit having a circuit board on which circuit components are mounted, and contained in the receptacle so that the circuit board extends along the axial direction of the outer shell;
- and
- a translucent cover which is provided in the outer shell so as to cover the light source.
3 more elements
Dependencies are inferred from the claim text.