Abstract: An automotive light is provided that includes a light-guide bar made of photoconductive-material, which is at least partially positioned substantially grazing a corresponding transparent or semitransparent portion of the front lenticular half-shell of the light, and a second light source which is structured so as to emit light when electricity powered, and is arranged inside the rear body, close to one end of the light-guide bar, so as to direct the light produced inside the body of said light-guide bar. The light-guide bar is provided with a longitudinal light-extractor band which extends along the lateral side of the bar, and a multitude of deflector prisms which have an approximately triangle-shaped cross-section and are conveniently arranged along the longitudinal light-extractor band. One or more deflector prisms are shaped so that the active deflector surface has a bulging/arched profile substantially over the whole width of the longitudinal band.

Abstract: A method for controlling a motor-vehicle lighting device is provided that uses LEDs supplied with PWM signals temporally spaced apart from one another by a first time phase t1 and a second time phase t2. An interval of interest is defined in which an electromagnetic disturbance must not exceed a maximum threshold value ?max; driving signals are supplied on the basis of first phases t1 and t2 computed; and the measured or simulated waveform of the electromagnetic disturbance deriving from the phases t1 and t2 is compared with the maximum threshold value within the interval of interest defined. Where the waveform of the disturbance exceeds the threshold, two phases t1 and t2, once again different from one another, are recalculated; otherwise, the last phases t1 and t2 calculated are selected and used in the PWM control. An advantageous motor-vehicle lighting device is also provided.

Abstract: An automotive light includes a rear body; a front lenticular half-shell which closes the mouth of the rear body and is provided with at least one transparent/semi-transparent portion; and at least one lighting assembly which emits light upon command and is located within the rear body to backlight the transparent/semi-transparent portion of the front lenticular half-shell. The lighting assembly includes a planar OLED light source which emits light from its front face and is within the rear body with the front face facing the inner surface of the front lenticular half-shell to direct light towards the front lenticular half-shell; a concentrated LED light source behind the planar light source; and a light-guide rod of photoconductive material between the concentrated light source and the planar light source and receives light emitted by the concentrated light source and conveys the light towards the rear face of the planar light source.

Abstract: An automotive light includes a rear body; a front lenticular half-shell which closes the mouth of the rear body and is provided with at least one transparent/semi-transparent portion; and at least one lighting assembly which emits light upon command and is located within the rear body to backlight the transparent/semi-transparent portion of the front lenticular half-shell; the lighting assembly being provided with a planar OLED light source which faces the inner surface of the front lenticular half-shell and includes at least one plate-like OLED which emits light in a distributed way from its front and rear faces; and a rear refracting member facing the rear face of the OLED that re-directs light that exits from the rear face of the OLED towards a transverse light passage in the OLED in a direction such that the light can traverse the OLED and exit from the front face of the OLED.

Abstract: Driver circuit of light sources, particularly of the LED type, comprising a first and at least a second group of light sources, each connected to a common power supply terminal, a first and at least a second regulation circuit, each suitable for regulating the current absorbed by a respective group of light sources, at least one actuation circuit operatively connected to a respective second regulation circuit, and a serial connection circuit, suitable for connecting in series at least a first and a second group of light sources, when the voltage downstream of the first group of light sources is greater than or equal to the voltage upstream of the second group of light sources.

Abstract: An automotive light including a substantially basin-shaped rear body structured so to be fixed onto the vehicle body; a front lenticular semi-shell provided with at least one band-like, transparent or semi-transparent portion; and at least a first lighting assembly, which is structured so as to emit light when electrically powered and is arranged so as to backlight the band-like; the first lighting assembly including: a first light-guiding plate made of photoconductive material which extends from the bottom of the rear body up to/close to the front lenticular semi-shell, while remaining perpendicular to the front lenticular semi-shell; and a second light-guiding plate made of photoconductive material, which laterally rests on/is joined with one of the two larger faces of the first light-guiding plate, close to the front lateral side of the same first light-guiding plate, so as to form an L-shaped structure which extends tangentially to the front lenticular semi-shell.

Abstract: An automotive light is provided having a substantially tub-shaped rear casing designed to fit to the vehicle body and a front lenticular half-shell which closes the opening of the rear casing and has at least one portion of transparent or semi-transparent material. The front lenticular half-shell includes a rear portion substantially aligned with the rear of the vehicle body, and a lateral portion substantially aligned with the side of the vehicle body. The automotive light also includes a strip light source designed to emit light when powered electrically and a light guide plate of photoconductive material shaped to substantially match the profile of the strip light source and housed inside the rear casing in a position substantially perpendicular to the rear portion of the front lenticular half-shell.

Abstract: An automotive light including a rear shell which is substantially tub-shaped and is structured so as to be fixed onto the vehicle body; a front lenticular half-shell which is provided with at least one portion made of transparent or semitransparent material, and is arranged to close the mouth of the rear shell; and at least a first main light source which is structured so as to emit light when electricity powered, and is placed within the rear shell in such a position as to backlight a corresponding transparent or semitransparent portion of the front lenticular half-shell; the automotive light further including at least one light-guiding section-bar made of light-conducting material, which is placed on the bottom of a corresponding slot or groove specifically obtained within the rear shell; and at least one auxiliary light source which is structured so as to emit light when electricity powered, and is placed within the rear shell so as to direct the emitted light directly into the body of the light-guiding se

Abstract: Light for motor vehicles and the like provided with a lighting device comprising a pair of power supply lines flowed through by a primary supplying current, two or more lighting branches each comprising one or more light sources adapted for being flowed through by a secondary supplying current; and an electronic control circuit configured to determine the secondary current flowing through each lighting branch; limit the primary supplying current to a predetermined minimum value when the secondary current flowing through at least one of said lighting branches is lesser than a predetermined threshold current; control the simultaneous transition of the light sources from a pre-lighting state to a complete-lighting state, when each of the secondary currents flowing through the lighting branches is greater than or equal to the predetermined current threshold.

Abstract: A method for injection molding of plastic-material lenticular bodies for lights; of motor vehicles and similar, the method comprising the steps of coupling a punch half-mold with a first matrix half-mold so as to define, on the surface of the punch half-mold, a first closed cavity that copies in reverse the shape of the first plastic-material sheet; filling said first cavity with a first plastic polymer in a liquid state, injecting the first plastic polymer in the first cavity from an injection point located at said first segment of the peripheral edge of the first plastic-material sheet; and finally separating, after the first plastic polymer has solidified to form the first plastic-material sheet, the punch half-mold from the first; matrix half-mold maintaining the first plastic-material sheet still on the surface of the punch half-mold.

Abstract: The invention relates to a driver circuit for light sources, in particular LEDs, comprising a selection circuit, comprising at least one selection circuit element defined by an electric quantity having one of a plurality of pre-established electric quantity levels, and an electronic control unit (ECU), comprising a reference circuit, suitable for providing a reference electric quantity, and a regulation circuit of the driver current, suitable for establishing a driver current of the light sources on the basis of said reference electric quantity.

Abstract: An automotive light includes a substantially basin-shaped rear body; a front lenticular half-shell arranged to close the mouth of the rear body and includes a ribbon-like, transparent or semitransparent portion; and a first lighting assembly structured to emit light when electricity powered, and arranged within the rear body to backlight the ribbon-like portion of the front lenticular half-shell. The first lighting assembly includes a light-guide plate made of light-conducting material and a linear-extending light source within the rear body next to the light-guide plate, and structured to direct emitted light towards the inside of the light-guide plate. The linear-extending light source includes a row of light-emitting diodes which face the light-guide plate and are placed spaced side-by-side to one another, and a power-supply and control circuit which sequentially turns on the diodes so as to illuminate in sequence an equal number of segments of the light-guide plate.

Abstract: An automotive light is provided that includes a light-guide bar made of photoconductive-material, which is at least partially positioned substantially grazing a corresponding transparent or semitransparent portion of the front lenticular half-shell of the light, and a second light source which is structured so as to emit light when electricity powered, and is arranged inside the rear body, close to one end of the light-guide bar, so as to direct the light produced inside the body of said light-guide bar. The light-guide bar is provided with a longitudinal light-extractor band which extends along the lateral side of the bar, and a multitude of deflector prisms which have an approximately triangle-shaped cross-section and are conveniently arranged along the longitudinal light-extractor band. One or more deflector prisms are shaped so that the active deflector surface has a bulging/arched profile substantially over the whole width of the longitudinal band.

Abstract: An automotive light is provided having a substantially tub-shaped rear casing designed to fit to the vehicle body and a front lenticular half-shell which closes the opening of the rear casing and has at least one portion of transparent or semi-transparent material. The front lenticular half-shell includes a rear portion substantially aligned with the rear of the vehicle body, and a lateral portion substantially aligned with the side of the vehicle body. The automotive light also includes a strip light source designed to emit light when powered electrically and a light guide plate of photoconductive material shaped to substantially match the profile of the strip light source and housed inside the rear casing in a position substantially perpendicular to the rear portion of the front lenticular half-shell.

Abstract: An automotive light comprising a substantially basin-shaped rear body structured so to be fixed onto the vehicle body; a front lenticular semi-shell, which is arranged to close the mouth of the rear body and is provided with at least one band-like, transparent or semi-transparent portion; and at least a first lighting assembly, which is structured so as to emit light when electrically powered and is arranged within the rear body so as to backlight the band-like, transparent or semi-transparent portion of the front lenticular semi-shell; said first lighting assembly comprising: a first light-guiding plate made of photoconductive material and which substantially extends from the bottom of the rear body up to and close to the front lenticular semi-shell, while remaining locally substantially perpendicular to said front lenticular semi-shell, and is furthermore shaped so as to arrange its front lateral side close to a first part of said band-like, transparent or semi-transparent portion; and a second light-guidin

Abstract: An automotive light including a rear shell which is substantially tub-shaped and is structured so as to be fixed onto the vehicle body; a front lenticular half-shell which is provided with at least one portion made of transparent or semitransparent material, and is arranged to close the mouth of the rear shell; and at least a first main light source which is structured so as to emit light when electricity powered, and is placed within the rear shell in such a position as to backlight a corresponding transparent or semitransparent portion of the front lenticular half-shell; the automotive light further including at least one light-guiding section-bar made of light-conducting material, which is placed on the bottom of a corresponding slot or groove specifically obtained within the rear shell; and at least one auxiliary light source which is structured so as to emit light when electricity powered, and is placed within the rear shell so as to direct the emitted light directly into the body of the light-guiding se

Abstract: A driver circuit of lighting sources for powering a plurality of lighting sources, comprising switching means (20) which can be operated to modify the path of the overall power supply electric current crossing said lighting sources. Said switching means can be operated to switch the path of the overall power supply electric current between at least one first path, corresponding to a first circuit configuration of the interconnections between the lighting sources, and at least one second path, corresponding to a second circuit configuration of the interconnections between the lighting sources.

Abstract: Wedge-base bulb socket comprising: a supporting base provided with a coupling seat dimensioned to house the plug of the light bulb; two coupling and connecting members which are located inside the coupling seat, and are structured to separately hold the wedge-shaped plug of the light bulb fitted into the coupling seat, and to feed electric current to said light bulb; two electrically conductive elements which extend on the surface of the supporting base up to the edge of the entrance of the coupling seat, on opposite sides of said entrance, and then descend into the coupling seat up to reach each a respective coupling and connecting member; and two respectively-facing additional supporting jaws which are supported by the two electrically conductive elements so as to be located substantially on opposite sides of the entrance of the coupling seat, and structured to clamp the wedge-base light bulb fitted into the socket, so as to firmly hold said wedge-base light bulb in the wedge-base bulb socket.

Abstract: Headlamp for motor vehicles, which can generate selectively a full light beam and a dipped/fog light beam, including a reflector which is subdivided into an upper reflective area, and a lower reflective area, and has an optical axis, along which there is disposed a single fixed light source consisting of a bulb with a single filament, a lens, which is disposed in a front position and at right-angles relative to the optical axis, and can converge the dipped/fog light beam, intermediate screens which are partially mobile, and can assume selectively a first position, in which they can intercept part of the said full light beam, in order to convert the latter into the said dipped/fog light beam, and a second position, in which the said full beam is not intercepted, and movement means in order to displace the said intermediate screens between the said first and second positions, which means are disposed on the exterior of a casing, which contains the reflector, the light source, the lens and the intermediate scree

Abstract: A lighting device for motor-vehicle comprises a reflective element having a plurality of projecting sectors which are equi-angularly spaced from each other, located around a light source arranged at the centre of the reflective element. The projecting sectors have reflective surfaces surrounding the light source which define a theoretical secondary reflective surface which is substantially different from the primary base surface from which the sectors project. The high discontinuity created in the surface of the reflective element by the presence of the projecting sectors gives rise to a unique aesthetical effect visible both in the condition of device on and in the condition of device off, the device is provided with a transparent element which is substantially clear, i.e. with no optical prisms.