摘要:
A headlight for a motor vehicle, in order to provide a cut-off light beam, comprising: a collector mirror of an ellipsoidal type with an optical axis; a source of light (S) placed in the vicinity of the inner focal point of the collector mirror; a substantially flat bender, the reflective surface of which is oriented towards the interior of the collector mirror, and has an edge which is situated in the vicinity of the other focal point of the collector mirror, and a lens, situated to the front of the collector mirror and the bender, in order to provide an image of the edge of the bender.
摘要:
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.
摘要:
A lighting and/or signalling device arranged so as to provide at least a first photometric function and a second photometric function, wherein the device comprises at least one moveable element on which at least the first photometric function is installed and the movement of which is subject to the operation of the second photometric function.
摘要:
A proposed method to illuminate optimally, or at least in an improved fashion compared with existing solutions, a road taken by a vehicle in question implementing the method whilst ensuring that other vehicles are not dazzled. To this end, it is not proposed in the invention to detect the distance between the vehicle in question and the first vehicle liable to be dazzled by the vehicle in question, and to generate accordingly a light beam optimized in terms of range on the road, and advantageously light intensity; according to the invention, the optimization of the light beam produced is achieved by the use of the motorway function available on the vehicle in question. The use of this function in this context also ensures a gradual transition between the function of the dipped type and the function of the main-beam type in the context of automatic switching operations between these functions.
摘要:
A headlight of the elliptical type comprises an occulting or masking screen which defines a cut-off profile in the light beam emitted by a light source, the beam being a regulation lighting beam for use in wet weather, with a cut-off profile. This beam includes a zone of reduced illumination which is situated below the cut-off line. The occulting screen includes at least one generally transverse portion which is made of transparent material and which lies above the cut-off line. This transparent portion includes a zone of reduced transparency which forms the zone of reduced illumination within the regulation lighting beam.
摘要:
An optical module of a headlight for a motor vehicle, for giving a cut-off beam and comprising a plurality of reflectors, including a reflector which is situated below the horizontal plane that passes through the optical axis and that defines a meridian curve which consists of an elliptical arc; a curve situated in front of the end of the elliptical arc, the front end of this curve being coincident with the second focus of the elliptical arc, or close to the focus; and together with a lens surrounds at least one zone of the lower portion of the convergent lens, or, in the absence of any convergent lens, surrounding the zone through which the rays pass in the plane of the lens.
摘要:
The invention concerns a lighting and/or signalling device for motor vehicles comprising a housing equipped with a plurality of light emitting diodes mounted on a movable plate, at least one device for cooling the said diodes, comprising at least one first fixed heat sink, at least one second movable heat sink, and at least one means for effecting a forced air convection between the first radiator or heat sink and the second radiator or heat sink.
摘要:
The objection of the invention is a compact headlight, for a motor vehicle, giving a light beam with cut-off, in particular of the fog type, having an optical axis and comprising a light source having a substantially horizontal axis extending substantially perpendicular to the optical axis of the headlight. In accordance with the invention, the headlight does not have a reflector and comprises, in front of the light source, a lens determined so as to give a light beam with cut-off. According to one embodiment, the source and the lens are formed in a single unit. The source is then formed from one or more light emitting diodes and the lens from a heat-resistant synthetic material which is moulded onto at least one luminous surface of the source.
摘要:
A system and method for controlling the in situ orientation of the headlamps of a vehicle, from a camera that is mounted in the headlamp, as a function of the attitude of the vehicle. A camera is secured to a reflector of the headlamp so as to film the road extending in front of the vehicle. An image processing unit processes at least two successive images in order to detennine a measured horizon line of the road scene in front of the vehicle. A setpoint horizon line has been determined beforehand during initial adjustment of the headlamp. The real horizon line is then brought closer to the setpoint horizon line by modifying the orientation of the headlamp, until the distance between the measured line and the setpoint line tends towards zero.
摘要:
The invention concerns a signaling device for automobiles, comprising at least one light source and at least one support piece for an optically active zone or zones intended to be illuminated by said light source. The source is a source of light at a first wavelength or first range of wavelengths, and the active zones are zones converting at least part of this light at a first wavelength or range of wavelengths into light at the second wavelength or range of wavelengths in the visible range.