Self-ballasted lamp and lighting equipment
First Claim
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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, whereinthe 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 cm2/W.
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Abstract
A base body having a base body portion and a plurality of heat radiating fins disposed on the circumference of the base body portion is provided. On one end side of the base body, a light-emitting module having semiconductor light-emitting elements, and a globe that covers the light-emitting module are provided. A cap is provided on the other end side of the base boy. A lighting circuit is housed between the base body and the cap. The lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface of 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 cm2/W.
152 Citations
10 Claims
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1. A self-ballasted lamp comprising:
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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 cm2/W. - View Dependent Claims (2, 3, 4, 5)
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6. A self-ballasted lamp comprising:
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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 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 in the base body, a solid portion is formed on one end side of the base body portion, and a plurality of heat radiating fins are formed integrally on a circumference of the base body portion including the solid portion. the light-emitting portion of the light-emitting module is positioned within a region of one end side of the base body portion, and the lamp total length from the globe to the cap is 70 to 120mm, 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 2/W. - View Dependent Claims (7, 8, 9, 10)
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Specification