Patent ID: 8040031

Claim:
A lamp with an outer bulb, comprising: an attaching member that attaches a lamp main body and an outer bulb for housing the lamp main body with a base, a supporting post that supports and secures the lamp main body to a substrate that closes an opening of the outer bulb, wherein an outer peripheral surface of the supporting post and an inner peripheral surface of the outer bulb that opposes the outer peripheral surface define therebetween a gap configured to receive at least one of a heat resistant adhesive and a filler, at least one of a concave portion and a convex portion facing one another across the gap is provided at each of the outer peripheral surface of the supporting post and the inner peripheral surface of the outer bulb, and a joint body that engages both of the facing concave and convex portions provided at the outer peripheral surface of the supporting post and the inner peripheral surface of the outer bulb, respectively, is defined between the supporting post and the outer bulb by one of the adhesive and filler received in the gap.