Abstract: A lighting and/or signaling device, notably for a motor vehicle, comprising at least one light source and one light guide, the source comprising a support and a plurality of light emitting components arranged on the support so as to emit a beam of light, the device being configured to direct the beam toward the guide, in which device the support is a printed circuit and/or the light emitting components are light emitting diodes, in which device the light emitting components are arranged in such a way as to define an emission surface for the beam of light on a face of the support, in which device the light source is configured so that the emission surface has a longitudinally extending axis, in which device the light guide comprises at least one emitting portion configured to emit light out of the guide, and at least one guide portion, situated between the source and the emitting portion, configured to transmit the beam of light from the source to the emitting portion.

Abstract: A lighting, indicating or signalling unit for a motor vehicle has a ventilating device defined partly on the housing of the unit and partly by a cover member which is mounted on the housing so that they together define a sinuous ventilation path to the interior of the housing. The sinuous ventilation path comprises:in its lower part, a double air inlet comprising two inlet apertures facing each other, and an inlet passage substantially transverse to the general direction joining the inlet apertures;a labyrinth extending substantially upwards from the double air inlet; anda passage for communication between the labyrinth and the interior of the housing, and at least partly defined between resilient mounting lugs by which the cover member is secured on the housing.