Patent ID: 8147106

Claim:
An automotive headlamp comprising: a housing; a light source unit disposed in front of the housing; and an optical axis adjustment mechanism interposed between the housing and the light source unit for tilting the light source unit about a tilting center axis so as to adjust an optical axis of the light source unit in a tilting fashion, wherein the optical axis adjustment mechanism comprises: a tilting fulcrum provided between the housing and the light source unit; an adjusting screw rotatably supported on the housing; and a synthetic resin nut member thread fitted on the adjusting screw and mounted on the light source unit, wherein the synthetic resin nut member interlocks with a rotation of the adjusting screw for forward or backward movement so as to tilt the light source unit about the tilting center axis which passes through the tilting fulcrum, wherein the synthetic resin nut member comprises: a nut member main body; a screw thread fitting portion formed in the nut member main body; and a leaf spring slide portion brought into elastic engagement with a guide groove in the housing so as to carry thereon the synthetic resin nut member and branched off at the nut member main body, wherein the leaf spring slide portion is formed of a first resin, and the nut member main body is formed of a second resin which is superior to the first resin in resistance to heat, and wherein the leaf spring slide portion is removably attached to the nut member main body.