Abstract: A device for indicating the aim, at least in bearing, of the optical axis of the reflector of a motor vehicle headlight relative to a longitudinal axis of the vehicle, wherein the device comprises apparatus for establishing a reference direction and suitable for being mounted on a fixed portion of the vehicle to define a reference direction that is well determined relative to the longitudinal axis apparatus. Apparatus is also included for establishing the direction of the optical axis of the reflector and is fixed relative to the reflector and distinct from a surface of the reflector for generating its beam. Finally, an indicator is provided for establishing the position of the optical axis direction relative to the reference direction. Indications thus given by the device enable the reflector to be adjusted after is has been mounted on the vehicle.

Abstract: The attachment and hinging component (5) of the device for adjusting headlight (1) with respect to the intermediary mechanism plate (2) accommodates a swivel joint (24) disposed at one end of an adjustment screw (23), and is mounted freely in translation in a slot (17) placed on headlight (1). According to the invention, attachment and hinging component (5) is in the form of a base (50) comprising two rectilinear and mutually parallel grooves designed to engage on the edges of slot (17).

Abstract: A device for locking a lamp in the socket of a motor vehicle headlight, the lamp including a flange (16) suitable for coming into abutment against an annular surface (34) of the socket for putting the lamp in a predetermined axial position, the lamp and the socket including complementary fittings (18, 36) for putting the lamp in a predetermined angular position, the device being characterized in that it comprises a ring (50), assembly means (42, 56; 70, 56) enabling the ring to be permanently assembled to the socket in such a manner as to allow it to rotate relative to the socket through a predetermined angle, the ring including a circular inside passage (52) having a diameter equal to or slightly greater than the outside diameter of the lamp's flange, and in that complementary radial fittings (19, 54) are provided at the periphery of the flange (16) and in the passage (52) in such a manner that, in a first angular position of the ring, the lamp may be inserted therethrough up to the predetermined axial and a

Abstract: The present invention relates to a headlight comprising a glass lens element and a support element, such as a reflector, of thermoplastic material, such elements being associated at their periphery by matching assembly shapes of interlocking type which are fixed by an assembly glue. The headlight is characterized in that the lens is provided with three fixed internal supports cast in one piece with the lens which define a bearing plane. The lens is also provided with a further internal support having a positive offset with respect to the bearing plane. This offset is compensated by an interposed support member whose thickness is determined by the actual features of the lens.