Abstract: The invention relates to a method of lighting a road with a vehicle headlight, in which the projected light is modulated in response to the presence of any persons on the road. The method comprises the following operations: detecting in the road scene at least one person, pinpointing the location of the person in the road scene, creating on an imager a mask having dimensions and position corresponding to the person, and lighting the road through the imager, to create a projected shadow around the person. The invention also provides a headlight for performing this method and having a first light source towards the imager, and an electronic system for generating light-occulting masks on the imager.

Abstract: The invention relates to a method of lighting a road with a vehicle headlight, in which the projected light is modulated in response to the presence of any persons on the road. The method comprises the following operations: detecting in the road scene at least one person, pinpointing the location of the person in the road scene, creating on an imager a mask having dimensions and position corresponding to the person, and lighting the road through the imager, to create a projected shadow around the person. The invention also provides a headlight for performing this method and having a first light source towards the imager, and an electronic system for generating light-occulting masks on the imager.

Abstract: Headlight for a motor vehicle comprising a reflector and a light source (S) running transversely to the optical axis (Y—Y) of the reflector and placed near the focal point of the reflector. The transverse light source (S) is placed near the internal focal point (Fi) of an ellipsoidal reflector (R1). The wall of the ellipsoidal reflector has a cutout (1) situated on one side of the plane passing through the geometric axis of the light source (S) and parallel to the optical axis (Y—Y) of the ellipsoidal reflector. A lens (2) with an optical axis parallel to or coincident with that of the ellipsoidal reflector (R1) is placed in front of this reflector, the focal point (3) of the lens being close to the external focal point (Fe) of the ellipsoidal reflector.

Abstract: The invention relates to a system for in-situ control of the orientation of a vehicle headlamp equipped with a light source fixed on a mobile reflector, and including a camera mounted in the vehicle, an image processing unit connected to the camera, and a specific light point emission device. It also relates to a process for in-situ control of the orientation of a vehicle headlamp, wherein it includes the following operations: recording of successive images of a scene extending in front of the vehicle, processing of at least one image of the scene and production of a processed image, determination, from this processed image, of a horizon line of the scene, determination of a specific point in the scene located at a pre-defined distance D from the horizon line, adjustment of the headlamp until this specific point is located in the light beam emitted by the headlamp.

Abstract: The present invention relates to a lighting and indicating device for a motor vehicle, including at least one main light source, associated with a reflector in order to emit a light beam of predetermined photometry along an optical axis through glazing. According to the present invention, the lighting or indicating device includes at least one second light source situated off the optical axis, and reflecting means for reflecting the light rays emitted by the second light source along a direction substantially parallel to the optical axis.

Abstract: The invention relates to a method of lighting a road with a vehicle headlight, in which the projected light is modulated in response to the presence of any persons on the road.

Abstract: Headlight for a motor vehicle comprising a reflector and a light source (S) running transversely to the optical axis (Y-Y) of the reflector and placed near the focal point of the reflector. The transverse light source (S) is placed near the internal focal point (Fi) of an ellipsoidal reflector (R1). The wall of the ellipsoidal reflector has a cutout (1) situated on one side of the plane passing through the geometric axis of the light source (S) and parallel to the optical axis (Y-Y) of the ellipsoidal reflector. A lens (2) with an optical axis parallel to or coincident with that of the ellipsoidal reflector (R1) is placed in front of this reflector, the focal point (3) of the lens being close to the external focal point (Fe) of the ellipsoidal reflector.

Abstract: An apparatus for lighting or indicating purposes in a motor vehicle includes a light guide associated with at least one light source for transporting light rays emitted by the light source from an input face to an output face via and intermediate section of the light guide. The output face of the light guide is contained between two closed lines which define a continuous internal contour and a continuous external contour, and the input face is contained between two further closed lines, also delimiting continuous internal and external contours.

Abstract: The invention proposes an indicator light, in particular for a motor vehicle, of the type comprising a central optical axis oriented from rear to front, a light source on this optical axis, and a solid optical piece, of the type in which the optical piece comprises an input surface and an output surface,

Abstract: The invention relates to a system for in-situ control of the orientation of a vehicle headlamp equipped with a light source fixed on a mobile reflector, and including a camera mounted in the vehicle, an image processing unit connected to the camera, and a specific light point emission device.

Abstract: An apparatus for lighting or indicating purposes in a motor vehicle includes a light guide associated with at least one light source for transporting light rays emitted by the light source from an input face to an output face via an intermediate section of the light guide. The output face of the light guide is contained between two closed lines which define a continuous internal contour and a continuous external contour, and the input face is contained between two further closed lines, also delimiting continuous internal and external contours.

Abstract: The present invention relates to a lighting and indicating device for a motor vehicle, including at least one main light source, associated with a reflector in order to emit a light beam of predetermined photometry along an optical axis through glazing.

Abstract: A motor-vehicle headlight has a light source interacting with a mirror to generate a lighting beam. Interposed on the path of a part of the radiation leaving the mirror, is an optical assembly with first and second deflecting optical elements taking up a first mutual position in which they are successively traversed by the said part of the radiation, and a second mutual position in which they are each traversed by two separate parts of the radiation, so as selectively to obtain two light beams with different photometry aspects.

Abstract: A motor vehicle headlight of the type comprising a two-filament lamp in which a first filament is provided with a cup so as to allow light to pass over a given angular extent only, and in which a second filament has no such cup, the headlight further comprising a closure glass and a reflector suitable for co-operating with one or the other of the two filaments respectively for generating an anti-fog beam and a main beam. According to the invention, the reflector comprises a reflecting surface having a first zone whose extent corresponds at least approximately to said given angular extent and whose shape is such that it generates, on its own, images of the first filament in which all of the points of the images lie below a cutoff that extends generally horizontally, thereby forming the anti-fog beam, and a second zone that runs continuously into the first zone, said first and second zones co-operating with the second filament to form the main beam.

Abstract: A motor vehicle headlamp has a cover glass closing a reflector that contains a light source. The reflector comprises upper and lower portions joined through a reflective base. Its lower portion is reflective and/or diffusive, while its upper portion has reflective means which at least partly retransmit light from the source in a beam passing through the cover glass. The reflecting means comprise cylindro-elliptical or ellipsoidal Fresnel ribs which concentrate the reflected beam in a focal zone in front of the cover glass. The beam diverges beyond this focal zone.

Abstract: A slave assembly is provided to protect an anodic workpiece joined to a shuttle from stray electrochemical machining. The assembly includes a slave having a support flange joined integrally with a sacrificial flange positionable adjacent to the workpiece for being electrochemically machined along with the workpiece to prevent stray electrochemical machining between the sacrificial flange and the workpiece. A retainer is positionable on the slave support flange to clamp the slave to the shuttle.

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: An apparatus for electrochemically machining a workpiece having first and second platforms and an airfoil extending transversely therebetween includes a first cathode trio having a center cathode disposed between first and second cathodes. The center cathode is configured for electrochemically machining a first side of the airfoil, and the first and second cathodes are configured for electrochemically machining at least the first and second platforms adjacent to the airfoil first side. The first and second cathodes are movable relative to the center cathode so that they move away from each other and toward the opposing platforms during machining. A second cathode trio is provided for electrochemically machining the airfoil second side.

Abstract: A machine for electrochemically machining (ECM) a workpiece having a stacking axis and first and second opposite sides includes a pair of cathode tools. The first and second tools have first and second longitudinal axes, respectively, disposed substantially perpendicularly to the workpiece stacking axis. The first and second tools also include the first and second transverse axes, respectively, disposed perpendicularly to the first and second longitudinal axes, respectively, and substantially parallel to the workpiece stacking axis. The machine is effective for practicing an improved method of moving the first and second tools along the first and second longitudinal axes and along the first and second transverse axes, respectively, toward the workpiece for the electrochemical machining thereof. By moving the respective cathode tools along both longitudinal and transverse axes, a selectively variable resultant feedrate direction is obtained which is inclined relative to the workpiece stacking axis.

Abstract: A headlamp for an automobile vehicle comprises a luminous filament, a reflector, and a closing glass. According to the invention, the reflector comprises a parabolic base part and side pieces in the form of parabolic cylinders focussed on the filament, and in addition there are deflecting means, for example toroidal lenses, which re-direct the inclined rays of light received from the filament into the horizontal direction, towards the side pieces. A greater proportion of the luminous flux is thus recovered, which enables production of lamps with a small height and with a high efficiency.