Plastic-based automotive headlamp

Claim 1

An electric lamp having a flanged cap mounting, comprising a translucent lamp vessel having a pinch seal, an electrical element arranged within said vessel, electrical current conductors connected to said element and passing from said vessel, a metal clamping plate having an opening in which the pinch seal is held, and a substantially circular-cylindrical collar, a substantially circular-cylindrical metal sleeve having first and second ends, joined telescopically at said first end to said collar and rigidly secured thereto, a cup-shaped lamp cap of synthetic material in which said second end is fixed; and which has a bottom portion, a substantially cylindrical wall portion, a mounting flange extending from an outer surface of said wall portion, and, to the side of the flange facing the vessel, a circumferential groove for receiving a sealing ring, and electrical contacts connected to said current conductors and secured to said bottom portion, characterized in that said cap comprises a first substantially circular-cylindrical hollow body formed of synthetic material, and having a circumferential ridge; and a second body of synthetic material rigidly connected to said first body, and having a disc-shaped portion having an upright edge surrounding said first body at a first end thereof, and a projecting flange forming said mounting flange; said upright edge having an end surface, said end surface and said circumferential ridge forming opposed walls of said circumferential groove; said first and second bodies being rigidly connected to each other, and said metal sleeve and said first body including cooperating means for locking said sleeve to said first body against displacement.