Patent ID: 8102110

Claim:
A lamp with an outer bulb in which a lamp main body formed with a pinch seal by hot press bonding one end of an airtight bulb having a pair of lead wires led out therefrom is attached in a state housed in the outer bulb to a base, wherein the base includes a base main body having contact terminals electrically connected with a receptacle and an attaching member fitted to the inside of the base main body in a state of retaining the lamp main body and the outer bulb, the attaching member has an insertion hole formed therethrough for inserting and retaining the pinch seal and has a flange formed at the outer peripheral surface thereof for abutment with the opening end of the outer bulb end, a joint portion is formed for engaging the outer peripheral surface of the attaching member and the inner peripheral surface of the outer bulb, and an adhesive injection port is opened in the bottom of the attaching member opposed to the base main body for filling a joint adhesive to the joint portion in a state of attaching the outer bulb, a narrow portion is provided in the joint portion for inhibiting the joint adhesive, filled from the adhesive injection port, from overflowing through the joint portion toward the upper end of the attaching member.