To facilitate resource recycle and also facilitate fastening work by temporarily retaining a lens by a rim, screwing the rim to an opening part, and holding and fixing the lens between the rim and a housing.

A rim comprises a frame part along the peripheral part of a lens, a bridge part extended so as to bridge the frame part, and a claw part, provided protrusively on the reverse side of the bridge part, so that the lens is preferably temporarily retained by the engagement of an engagement hole bored within the light transmissive surface of the lens with the claw part. An inner lens 3 is nipped and fixed between an inner rim 4 and a housing 2 by allowing a small projection 11 formed on the circumferential wall thereof to be abutted to the peripheral part (low stepped part 21c) of the opening part 21a of a first lamp chamber in a state, where the central part of the light transmissive surface is retained by a claw part 43. An outer lens 6 is mounted by fitting an engagement projection streak 6a protruded to the reverse side of the outer lens 6 to the groove part 42a of the bridge part 42 of the inner rim 4 in the part opposed to the inner lens 3.