Patent ID: 7491981

Claim:
A light-emitting device, comprising: a light-emitting portion comprising a light-emitting element; a heat dissipation base on which the light-emitting portion is mounted and which is exposed outwardly for dissipating heat produced by the light-emitting portion; a power feeding portion for feeding power to the light-emitting portion; and a sealing portion comprising a glass material contacting the heat dissipation base for insulating the power feeding portion from the heat dissipation base, wherein the sealing portion comprises: a first sealing portion comprised of the glass material and disposed between the heat dissipation base and the power feeding portion for insulation therebetween, said first sealing portion having at least one of a recessed portion and a groove with corrugated ridges surrounding said light-emitting element at a predetermined distance therefrom; and a second sealing portion comprised of the glass material and which is integrated through the power feeding portion with the first sealing portion, the glass material having light transmissivity for radiating outwardly light emitted from the light-emitting portion, and the second sealing portion is directly bonded to the first sealing portion.