Abstract: The invention relates to an optical element including a resin body having a functional surface covered with a reflective coating capable of reflecting light beams, the reflective coating including a copper layer covering at least the functional surface, a nickel layer covering the copper layer, and a chromium layer covering the nickel layer.

Abstract: The invention relates to an optical element including a resin body having a functional surface covered with a reflective coating capable of reflecting light beams, the reflective coating including a copper layer covering at least the functional surface, a nickel layer covering the copper layer, and a chromium layer covering the nickel layer.

Abstract: Cutoff mechanism for a motor vehicle headlight, that has a bar formed by an obturation plate carried by a movable appliance configured so as to move the plate in a plane and thus obscure a light beam to a greater or lesser extent so as to change the optical operating mode, further having a mechanism for actuating the movable appliance using an electromagnet having an induction coil associated with a ferromagnetic core, wherein the electromagnet has at least one ferromagnetic core fixed with respect to its induction coil and in that the movable appliance has at least one permanent magnet configured so as to cooperate magnetically with the ferromagnetic core.

Abstract: Cut-off mechanisms for a motor vehicle headlight activated by an electromagnet with two gaps comprise a movable assembly that comprises a cut-off bar and a movable element, as well as an actuator motor comprising an electromagnet, the movable element being movable under the action of the electromagnet, against a return spring, between a near activation position and a remote rest position relative to a ferromagnetic core of the electromagnet, the movable element being configured to create an interruption in the continuity of a magnetic circuit formed by the ferromagnetic core, a metallic casing and the movable element, when said element comes near to the ferromagnetic core in the activation position.

Abstract: Cut-off mechanisms for a motor vehicle headlight activated by an electromagnet with two gaps comprise a movable assembly that comprises a cut-off bar and a movable element, as well as an actuator motor comprising an electromagnet, the movable element being movable under the action of the electromagnet, against a return spring, between a near activation position and a remote rest position relative to a ferromagnetic core of the electromagnet, the movable element being configured to create an interruption in the continuity of a magnetic circuit formed by the ferromagnetic core, a metallic casing and the movable element, when said element comes near to the ferromagnetic core in the activation position.

Abstract: Cutoff mechanism for a motor vehicle headlight, that has a bar formed by an obturation plate carried by a movable appliance configured so as to move the plate in a plane and thus obscure a light beam to a greater or lesser extent so as to change the optical operating mode, further having a mechanism for actuating the movable appliance using an electromagnet having an induction coil associated with a ferromagnetic core, wherein the electromagnet has at least one ferromagnetic core fixed with respect to its induction coil and in that the movable appliance has at least one permanent magnet configured so as to cooperate magnetically with the ferromagnetic core.