Abstract: An optical element, which is transparent, for a motor vehicle, including at least one transparent first layer containing a polymer material and at least one second layer including at least silicon, titanium and oxygen. The optical element has a surface roughness defined by a mean square deviation Rq greater than or equal to 20 nm.

Abstract: A transparent optical element for a motor vehicle includes at least one first transparent layer of a polymer material. The optical element further has at least one second transparent layer including at least silicon, titanium, oxygen and nitrogen.

Abstract: An optical element, which is transparent, for a motor vehicle, including at least one transparent first layer containing a polymer material and at least one second layer including at least silicon, titanium and oxygen. The optical element has a surface roughness defined by a mean square deviation Rq greater than or equal to 20 nm.

Abstract: A lighting assembly for lighting and/or signaling in a motor vehicle that palliates the disadvantages resulting from the reflection and focusing of solar rays by focusing means of a lighting module for lighting and/or signaling in a motor vehicle onto a mask disposed under a lighting module. The lighting assembly comprises means for emitting and means for focusing one or more light beams, together with a mask, a part of which extends under the focusing means. A part of the mask is transparent to light, so that solar rays reflected and focused by the focusing means onto the mask pass through the transparent part.

Abstract: A lighting and/or signaling device for a motor vehicle, including an internal chamber housing an optical system and at least one element made of polymer material having a surface directed toward the interior of the chamber, wherein the surface directed toward the interior of the chamber is provided with a sealing layer forming a barrier to the ingress of water molecules to the chamber. The method for manufacturing such a device is also a subject of the invention.

Abstract: A lighting and/or signaling device for a motor vehicle, including an internal chamber housing an optical system and at least one element made of polymer material having a surface directed toward the interior of the chamber, wherein the surface directed toward the interior of the chamber is provided with a sealing layer forming a barrier to the ingress of water molecules to the chamber. The method for manufacturing such a device is also a subject of the invention.

Abstract: A transparent optical element for a motor vehicle includes at least one first transparent layer of a polymer material. The optical element further has at least one second transparent layer including at least silicon, titanium, oxygen and nitrogen.

Abstract: A lighting assembly for lighting and/or signaling in a mootor vehicle that palliates the disadvantages resulting from the reflection and focusing of solar rays by focusing means of a lighting module for lighting and/or signaling in a motor vehicle onto a mask disposed under a lighting module. The lighting assembly comprises means for emitting and means for focusing one or more light beams, together with a mask, a part of which extends under the focusing means. A part the mask is transparent to light, so that solar rays reflected and focused by the focusing means onto the mask pass through the transparent part.

Abstract: An optical device for a motor vehicle comprising a surface light source emitting light rays in a first direction, wherein it comprises an optical system including first deflecting optical means that are at least locally remote from the surface light source and deflecting the light rays emitted in the first direction, in a second direction different from the first direction.

Abstract: An apparatus for treating a surface of an object comprises a vacuum chamber in which the object is intended to be placed, and means, in communication with the vacuum chamber, for treating the surface of the object, comprising at least two plasma generator. The apparatus also comprises means for controlling each generator independently of any other generator. These controlling means comprise means for activating/deactivating the generator. The invention also relates to a process for treating a surface of an object.

Abstract: The present invention relates to a lighting and/or signaling device component for automobile vehicles, comprising a material containing polymer(s) wherein this material locally exhibits, on one face, a region of enhanced reticulation over a superficial thickness.

Abstract: A material based on polymer(s), the material being surface treated by ion bombardment in order to improve the surface appearance of the material. The invention also relates to a process for obtaining this part and the use thereof, in particular for the manufacture of lighting and/or signaling devices.

Abstract: A motor vehicle part comprising a material based on polymer(s), the material being surface treated by ion bombardment in order to improve the surface appearance of the material. The invention also relates to a process for obtaining this part and the use thereof, in particular for the manufacture of lighting and/or signaling devices.

Abstract: An apparatus for treating an object, for example an object made of polymer for a light or headlamp of an automotive vehicle, comprises a vacuum chamber in which the object is intended to be placed; means for placing the chamber under vacuum; and ion bombardment means intended for treating the object, comprising an ion generator and at least one ion applicator intended to emit an ion beam. This apparatus comprises, in addition: a first airlock; means for selectively placing the vacuum chamber in communication with the first airlock and means for placing the first airlock under vacuum. The ion bombardment means are arranged outside of the vacuum chamber. The ion applicator is housed in the first airlock.

Abstract: An optical device for a motor vehicle comprising a surface light source emitting light rays in a first direction, wherein it comprises an optical system including first deflecting optical means that are at least locally remote from the surface light source and deflecting the light rays emitted in the first direction, in a second direction different from the first direction.

Abstract: Apparatus for lighting and/or indicating purposes, on a vehicle such as a motor vehicle that has a rear fog lamp. The apparatus includes an electrical supply and a control circuit connecting the electrical supply to the fog lamp and/or an indicator. The control circuit is responsive to activating signals from a fog detector that is adapted to produce the activating signal when a condition of reduced visibility exists in the environment of the vehicle. This activating signal, moreover, is generated in response to electromagnetic waves reflected to a receiver coupled to the fog detector.

Abstract: A lighting and/or indicating apparatus for a motor vehicle, of the type comprising an external light transmitting element and a base arranged behind the latter, typically consists of a lighting and indicating cluster. The light transmitting element comprises an outer panel, the base comprises an inner wall, and the two walls together constitute a thin gas-tight envelope and define at least one closed cavity. This cavity, or each cavity, contains two electrodes and a suitable gas under low pressure, the apparatus having means for applying voltage for starting and maintaining a luminescent gas discharge in the cavity, so that the envelope itself constitutes at least one light of the gas discharge type. The appearance and light output are improved, and the light beams emitted are highly homogeneous.

Abstract: An indicator light unit for a motor vehicle comprises a support element, at least one cover element, and at least one light emitting diode (LED), having a body, arranged between the support element and the cover element. The light unit comprises at least one elementary module having a frame, carrying at least one LED, the cover element being fixed to the frame. The frame comprises: an aperture associated with each LED for passage of the light emitted by the LED, each of the latter being located in line with a corresponding one of these apertures, the cover element or elements being in facing relationship with these apertures; and means for fixing the module on the support element.

Abstract: An indicating light unit for a motor vehicle has a support plate, an optic extending along the support plate, and a plurality of elementary luminous modules each comprising a light emitting diode. Each module comprises at least one light emitting diode mounted on a frame and covered with a cover element, the modules being juxtaposed to each other in predetermined positions on the support plate and being connected electrically to a common electrical supply source. The unit is of low thickness and gives a homogeneous light field.

Abstract: A lighting and indicating apparatus for a motor vehicle, for use in poor visibility. The unit includes a fog lamp and apparatus for automatically detecting the presence of poor visibility. The control system for automatic control of the lighting and indicating apparatus includes a humidity detecting circuit and an optical visibility detecting circuit, the outputs from which are combined by a combining circuit, the combined signal then being processed so as to control lighting or extinction of the fog lamp.