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US 8,226,270 B2Granted
Lighting device
AssigneeSharp Kabushiki Kaisha
InventorsShoji Yamamoto, Hiroyasu Nakagawa, Shinya Sakaida, Fujio Takahashi, Ayanori Hamaguchi
Life of this patent
Estimating the term…
Abstract
The lighting device includes: a heat radiating part provided with a cavity that accommodates a part of a plurality of drive circuit components driving a light source module; and a base part provided with a cavity that accommodates another part (e.g., a transistor) of the drive circuit components. Then, the drive circuit components are accommodated in the cavity of the heat radiating part and the cavity of the base part.
Claims12
A lighting device, comprising:
- an LED;
- a drive section for driving the LED;
- an accommodating part accommodating the drive section;
- and
- a heat radiating part radiating heat from the LED and/or the drive section;
- a base part to be connected to an external power supply;
- and
- an insulating part insulating the heat radiating part from the base part,
- wherein the accommodating part is tightly closed in at least a part of the heat radiating part, and
- the insulating part has a heat radiating part holding cylinder holding the heat radiating part, a base part holding cylinder holding the base part and a linkage part linking the heat radiating part holding cylinder with the base part holding cylinder, wherein the heat radiating part holding cylinder, the base part holding cylinder and the linkage part are formed in one piece.
7 more elements
A lighting device, comprising:
- an LED;
- a drive section for driving the LED;
- an accommodating part accommodating the drive section;
- and
- a heat radiating part radiating heat from the LED and/or the drive section;
- a base part to be connected to an external power supply;
- and
- an insulating part insulating the heat radiating part from the base part,
- wherein the accommodating part is provided close to the LED inside the heat radiating part, and
- the insulating part has a heat radiating part holding cylinder holding the heat radiating part, a base part holding cylinder holding the base part and a linkage part linking the heat radiating part holding cylinder with the base part holding cylinder, wherein the heat radiating part holding cylinder, the base part holding cylinder and the linkage part are formed in one piece.
7 more elements
Dependencies are inferred from the claim text.