WO2014119980A1 - Dispositif d'éclairage frontal à modèles de lumière adaptatifs - Google Patents

Dispositif d'éclairage frontal à modèles de lumière adaptatifs Download PDF

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Publication number
WO2014119980A1
WO2014119980A1 PCT/MX2013/000014 MX2013000014W WO2014119980A1 WO 2014119980 A1 WO2014119980 A1 WO 2014119980A1 MX 2013000014 W MX2013000014 W MX 2013000014W WO 2014119980 A1 WO2014119980 A1 WO 2014119980A1
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WO
WIPO (PCT)
Prior art keywords
light
focus
reflector
light source
segmented
Prior art date
Application number
PCT/MX2013/000014
Other languages
English (en)
Spanish (es)
Inventor
Luis Fausto TERÁN BALAGUER
Rubén Carlos OVIEDO MONTAÑO
Eduardo RODARTE LEYVA
Dino Alejandro PARDO GUZMÁN
Original Assignee
Terán Balaguer Luis Fausto
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Filing date
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Application filed by Terán Balaguer Luis Fausto filed Critical Terán Balaguer Luis Fausto
Priority to PCT/MX2013/000014 priority Critical patent/WO2014119980A1/fr
Publication of WO2014119980A1 publication Critical patent/WO2014119980A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device

Definitions

  • the field or technological field where the present invention is applied for practical use is that of adaptive automotive optoelectronics.
  • LED headlights Although the technical advantages of LED headlights are indisputable, their application in automotive headlights is no longer reduced to mere daytime running lights, position lights, turn signals or brake. Automotive headlights have evolved to enter the world of smart technologies, that is, products capable of operating differently in different situations. Lighthouses capable of projecting a changing light pattern that respond to the changing needs of the road or the driving style of its users are being developed and marketed.
  • Gentex Co. developed the headlight system called SmartBeam ® DFL (Dynamic Front Lighting) consisting of a custom CMOS (complementary metal oxide semiconductor) image sensor combined with decision-making algorithms to offer headlights that They don't dazzle people in other cars. Specifically, the system detects the presence of other front or rear headlights and generates dynamic locking areas around vehicles that are still moving away or approaching. Special headlights equipped with blinds for partially blocking high lights to prevent glare from surrounding traffic while continuously optimizing forward lighting.
  • CMOS complementary metal oxide semiconductor
  • Another similar invention is distinguished by using xenon headlights that include automatic control of road lights, changing the highway as a city and back, depending on factors such as vehicle speed. So, moment by moment, the upper edge of the light pattern is formed to avoid dazzling other users - a technique called adaptive cutting.
  • xenon headlights that include automatic control of road lights, changing the highway as a city and back, depending on factors such as vehicle speed. So, moment by moment, the upper edge of the light pattern is formed to avoid dazzling other users - a technique called adaptive cutting.
  • a forward-facing camera and a processor detect the headlights and taillights of other vehicles. Mercedes E-Class cars were the first to be offered with these characteristics, but the A8 xenon option takes adaptive cutting even further, automatically shaping the light beam to avoid dazzle when the car ascends or descends hills - this is called topographic control . It won't be long before Premium buyers demand an LED style, combined with adaptive cutting technology that is only possible now with xenon sources.
  • BMW is not far behind and introduces a system of self-adapting lights that emit their beam in the direction of the curve and ensure better visibility and more safety during night trips on winding roads.
  • Sensors for measuring speed, steering angle and skidding degree of rotation around the vertical axis. Based on this information, small electric motors rotate the headlights to the left or right so that the beam falls forward on the road, guiding the driver in the curve.
  • the projection control of the headlight beam means that the headlamps rise at high speeds and decreases at low speed, resulting in a wider beam for driving within the city.
  • the range control of adaptive headlights takes into account the vertical curve of the road.
  • the headlamp beam projection control is lowered when driving on a hill and is raised when the vehicle is in a depression; The result: each individual curve is illuminated and the traffic that comes is not unnecessarily dazzled. Driving at night is even safer, especially when visibility is poor.
  • the auto-adaptive lights only activate when the vehicle is running. They remain off when the BMW is in reverse and when the steering wheel is turned to the left while the vehicle is stationary (for example, when it is pulled out of a parking space in lanyard) to avoid t glare to the approaching traffic.
  • Self-adapting lights are complemented by turn light. Which is automatically activated at speeds of up to 70 km / h, and improves visibility in the immediate vicinity of the vehicle, which is N useful when driving along very sharp turns, turns or parking lots.
  • Patent application MXPA / A / 2001/002828 describes headlights with varying levels of lighting that offer greater flexibility in road lighting but also challenges for automatic control.
  • Each continuously variable headlamp has an effective illumination range that is varied by changing at least one parameter of a set that includes the pointed horizontal direction, the pointed vertical direction and the emitted intensity.
  • a system for automatically controlling continuously variable headlights in a controlled vehicle includes an image capture and processing system capable of determining the side and elevation locations of the headlights of the coming vehicles and the taillights of the front vehicles.
  • the system also includes a control unit that can acquire an image in front of the controlled vehicle.
  • the image covers an area of glare that includes points at which the drivers of the coming and front vehicles would perceive that the headlights cause excessive glare.
  • the image is processed to determine if at least one forward or next is within the area of glare. If at least one vehicle is within the glare area, the headlamp's lighting range is reduced. Otherwise, the headlamp lighting range is adjusted to the full lighting range.
  • the car headlight system includes a light source, a prism of total internal reflection, a digital reflecting element, a free-form lens and a multi-curve reflector.
  • the prism of total internal reflection is used to redirect and reflect the light rays of the source of light.
  • the reflective digital element is controlled to change a set of states with respect to the rays of light reflected by the prism of total internal reflection, then compensation patterns will be given quickly during different states.
  • the freeform lens is used to control the directions of light rays from the reflecting digital element.
  • the multi-curve reflector has a series of radii of curvature to reflect the light rays coming from the lens freely.
  • Publication US2011 / 0210666 reveals a method of handling headlights for vehicles adapted to the road; Once the vehicle is turned on, the vehicle headlight is adjusted to a primary basic lighting angle. Then a signal from the vehicle driving environment, a vehicle speed signal and vehicle body position signals are obtained. From that moment, according to the different vehicle signals mentioned above, a power source is controlled to change the lighting angle of the headlight and / or the LED light source provided in the Headlight motherboard is controlled differently to turn on or off.
  • the headlamp of the vehicle can quickly and flexibly produce lighting patterns and wide areas of crossing lighting to ensure good visibility of the road and increase driving safety.
  • a device which includes at least one device such as a headlight, which includes a curved base plate divided into an internal module, an external module and an intermediate module, located between the internal side and the external and intermediate module in turn is divided from the top to the bottom into a module from the top, a basic module and a module from the bottom, a set of LED light sources differently distributed in the upper modules, a power source arrangement connected and that drives the motherboard to rotate in different directions and a controller electrically connected to the LED light source and the power source arrangement.
  • a headlight which includes a curved base plate divided into an internal module, an external module and an intermediate module, located between the internal side and the external and intermediate module in turn is divided from the top to the bottom into a module from the top, a basic module and a module from the bottom, a set of LED light sources differently distributed in the upper modules, a power source arrangement connected and that drives the motherboard to rotate in different directions and a controller electrically connected to the LED light source and the power source arrangement.
  • a spherical sensor comprised of a metal ball surrounded by a fluid encapsulated in a spherical sensor is used, which is connected to a sensor system spherical.
  • a computer-controlled unit is placed in and near the headlamp so that the metal ball cooperates with sensors inside the spherical sensor system to make the headlamp move to follow the car during turns.
  • US6497503 discloses a headlight system that stores a set of lighting patterns in a microprocessor that selects a predetermined lighting pattern based on the driving conditions and sends the predetermined light pattern to a digital micro mirror (DMD) device that It is capable of generating the desired light pattern by adjusting the individual position of the pixels in the DMD.
  • DMD digital micro mirror
  • An adaptive front lighting system for a vehicle is described in US8162518, which includes an image sensor and a control.
  • the image sensor includes a two-dimensional matrix for censored light of photosensitive elements and monitors the panorama in front of the direction of travel of the vehicle.
  • the control processes image data from the image sensor. Adjustments between a first lighting pattern and a second lighting pattern of the vehicle's headlight are at least partly sensitive to image data processing.
  • the control can receive vehicle data through a vehicle communication bus and can adjust between a first lighting pattern and a second lighting pattern of a vehicle headlight at least partly sensitive to vehicle data.
  • the control can process image data to determine at least in part a presence, location or characteristic of an object of interest in the field of view in front of the image sensor.
  • an automatic lighting system for a vehicle that includes a control and an image generating device having a forward field of vision is described.
  • the control is operable to process the image data captured by the image device to determine whether an object captured by the image generating device is an object of interest generally present in front and / or laterally to the vehicle while the vehicle travels along the road.
  • a light source operates to generally illuminate the vehicle in front or side.
  • the illumination source includes a matrix of light emitting diodes and the illumination emanating from the light source is adjustable by selective activation of at least some individual light emitting diodes of the matrix of light emitting diodes.
  • the lighting source setting is sensitive to the determination of the control that a captured object is an object of interest to the driver of the vehicle.
  • US7241034 a structure and method is described, for operating a directional control system for vehicle headlights, which is capable of altering the orientation of the headlight angles to account for changes in operating conditions.
  • vehicle One or more operating condition sensors may be provided to generate signals representing a vehicle condition such as road speed, angle of rotation, slope, suspension height, rate of change of road speed, rate of change of the angle of rotation, rate of change of the slope and rate of change of the height of the suspension of the vehicle.
  • a controller responds to the sensor signal to generate an output signal.
  • An actuator is adapted to be connected to the beacon to effect the movement thereof according to the output signal.
  • the controller may include a table that relates values of the censored operating conditions with the values of the output signals. The controller responds to the sensor signals to find the output signal in the table.
  • the beam deflection system comprises two Fresnel lenses, mounted face to face in a position to intercept all of the headlight light, one is equivalent to a divergent lens with cylindrical surfaces, and one of them equivalent to a converging lens with cylindrical surfaces. In a neutral position, the effects of the two lenses are canceled, so there is no deflection of the beam.
  • One of the lenses is mobile in translation outside the neutral position, so that a deflection of the beam occurs, without any other change in the pattern of the beam.
  • the stationary Fresnel lens is not used, but its effect is produced through the use of a modified shape reflector.
  • US7249877 patent discloses a mounting for a reflector lamp that may be formed by a reflector housing having a reflector with a prescribed reflective surface.
  • a lamp bulb assembly that has an axially extending rod and supports a head that extends transversely to the axis, the head that has a first region in general extends linearly, a first series of LEDs generally mounted in a row along the facing region in a plane towards the reflector.
  • the electrical connections for the LEDs extend through the head, and the rod outwards of the assembly for the electrical connection.
  • a base extends in the passage through and is mechanically mounted in the optical housing with the LED assembly oriented to the face of the reflecting surface.
  • a front adaptive light system (AFLS) described in US7690826 is provided for a vehicle.
  • the AFLS comprises one or more light emitting diodes (LED) in lamp units and a housing that houses the LED lamp units, in which each of the LED lamp units comprises one or more LEDs as the light source and a reflector that reflects the light emitted by the light source so that the reflected light can be directed forward and said adaptive frontal light system is operable to form different beam patterns selectively with the activation and deactivation of the units of lamp and in which one or more reflectors of the lamp units comprise a multiple reflector face that includes a plurality of cells having different radii of curvature or focal points.
  • LED light emitting diodes
  • a projection module for a car headlight is provided in US7963684 which includes, at least, a semiconductor emission source that emits electromagnetic radiation, a reflector that reflects the emitted radiation, a deflector screen that shades at least a part of the reflected radiation and a projection lens to project the reflected radiation.
  • the radiation passes through the deflector system to create a desired emission distribution from the projection module in front of the car.
  • At least one emission source is mounted at or near the rear of the deflector screen, the direction of the main radiation of at least one emission source is directed towards the semi-open space opposite the direction of radiation output of the projection module.
  • a vehicle lamp that includes a projector headlight uses an LED light source for a low light is described in US8070339, which may include a shadow, an LED light source, an ellipsoidal reflector and a projector lens. Both the focus of the projector lens and an upper edge of the screen can be located near a second focus of the reflector.
  • the LED light source can be found near a first focus located below the second focus of the reflector. Therefore, the light emitted from the LED light source can be effectively concentrated near the focus of the lens projector through the reflector and can be projected through the projector lens of high efficiency of use.
  • the projector lens may include light scattering portions or structures above or below itself to reduce chromatic aberration.
  • the lamp can project a favorable light distribution that can conform to the light distribution standards for vehicle headlights and the like.
  • An adaptive front LED lighting system for an automotive vehicle described in US2008 / 0198617 comprises a headlight housing, fixed on the vehicle for mounting LED light units having fixed beam directions.
  • the LED lamp units each have mounting pivots and linkage pivots that are spaced apart from each other to provide lever arms.
  • the mounting pivots mount the LED light units in a frame inside the housing.
  • a link is provided both to the link pivots of the LED light units and to an axial translation axis driven by a motor that is restricted with respect to the vehicle. When it moves alternately from the steering axis, the LED lamp units rotate and change the direction of their light beams relative to the longitudinal axis of the vehicle.
  • US8197109 refers to a vehicle lamp that can obtain an ideal light distribution pattern using a light unit.
  • the vehicle lamp according to the present invention comprises: a first ellipse-shaped reflective surface, a semiconductor light source at a first focus or the surroundings of the first reflective surface and parabola-shaped reflective surfaces controlling the reflected light of the first reflective surface that is reflected on the road as predetermined patterns of light distribution.
  • the second reflective surface forms a pattern of light distribution for the high degree of light.
  • the third reflective surface forms a pattern of light distribution for the collection that has the pattern of light distribution for the degree of light high.
  • the fourth reflective surface forms a pattern of light distribution for diffusion that overlaps the pattern of light distribution for the degree of High light and light distribution pattern for collection.
  • Fig. 1 is an explosive perspective view of a module of the headlight, consisting of one of the light sources with all its components.
  • Fig. 2 is a conventional perspective view of an optical system, of one of the lighting modules.
  • Fig. 3 is a side section of one of the lighting modules formed by a light source.
  • Fig. 4 is a conventional top perspective view of one of the lighting modules without the parabolic reflector.
  • Fig. 5 is a rear-top perspective view of one of the lighting modules without the optical reflector.
  • Fig. 6 is a front perspective view of the fully assembled headlamp inside its housing.
  • Fig. 7 is an explosive rear perspective view of a headlight module formed by one of the light sources with all its components.
  • Fig. 8 Illustrates the ideal lighting pattern of a first segmented parabolic reflective surface.
  • Fig. 9 Illustrates the ideal lighting pattern of a second segmented parabolic reflective surface.
  • Fig. 10 Illustrates the ideal lighting pattern of the composite parabolic reflector.
  • Fig. 11 shows four possible of the multiple variations that can occur between the different combinations of the lighting patterns of each light source.
  • the automotive front lighting device with adaptive light patterns for vehicles capable of adapting its combined lighting pattern to road conditions automatically, is made up of an optical system that integrates at least , two light sources (4) in each headlight, with their respective arrangement of optical reflectors for each source and characterized in turn by:
  • Said optical system comprises: a light source with luminous flux passing through a first focus of the ellipse defined by the surface of a first fixed reflective surface.
  • the light source may be a single light emitting diode or a matrix array of light emitting diodes.
  • the light source may be physically positioned in the focus of said ellipse, or be positioned out of focus but concentrate its luminous flux in said focus by means of a simple optical lens or an array of optical lenses placed on each diode.
  • the optical system also has a second composite and / or segmented parabolic reflector surface capable of acquiring angular movement on the plane parallel to the road surface through which the vehicle travels.
  • the optical reflector is positioned such that the focus of the parabola described by its surface coincides with the second focus of the ellipse described by the first reflector.
  • the segmentation of the surface of this reflector is such that it is possible to disperse the light reflected in a pattern predefined by international official regulations and to orient said pattern according to road conditions and according to the way the vehicle is operated by the user.
  • a third reflective surface is also part of the optical system, which can be flat, curved and / or segmented, which reflects and disperses the beams of light reflected from the first elliptical reflective surface towards the second segmented composite parabolic reflective surface.
  • the device in question has a driving system that can be electromechanical, pneumatic, hydraulic, magnetic, integrated in turn by: i) driving means, ii) a support base for said driving means, iii) a gear attached to the driving means, iv) a gear attached or monolithically integrated to the composite and / or segmented parabolic optical reflector capable of converting the movement of the motive medium into angular movement of said parabolic reflector and of maintaining the coincidence of its focus with the second focus of the first elliptical reflector by means of concentric guides, v) connections for the driving medium and vi) electrical connections for the light source.
  • driving means ii) a support base for said driving means, iii) a gear attached to the driving means, iv) a gear attached or monolithically integrated to the composite and / or segmented parabolic optical reflector capable of converting the movement of the motive medium into angular movement of said parabolic reflector and of maintaining the coincidence of its focus with the second focus of the
  • the optical system has a heat sink that absorbs and distributes the heat generated from the light source, which in turn functions as a block for mounting all the mentioned components; and a housing that houses and protects all components from the weather with a transparent front mica through which the light beams are transmitted.
  • At least two independent light sources (4) made up of a mathcial array of light emitting diodes (4) or any other type of light source capable of varying their light intensity, said mathcial array of LEDs (4) found assembled to a heat dissipation device (5) to remove the heat generated and which uses as a means of contact with the light source, a heat exchanger paste that allows a greater flow of heat energy between said light source (4) and the heat sink device (5); said light source (4) which in turn is placed in the first focus (F1) of an elliptical or semi-elliptical reflector (1) of reflective surface and which can vary its light intensity to generate variations in the light pattern shown in Figure 11) as well as turn on and / or turn off LEDs independently in the matrix to generate another variation in said light pattern shown in Fig. 11.
  • the heat dissipation device (5) which, in addition to fulfilling its main purpose, that of dissipating heat, serves as an assembly or mounting support for the rest of the components, so it has a particular shape on the upper face (48 ) and the front face (49) and which has a series of fins (50) towards the bottom and rear to obtain greater contact with the weathering air and improve efficiency.
  • An optical system which is composed of at least three reflectors, of which at least one is segmented (2) by each of the at least two light sources (4) used , said segmented reflectors (Fig. 2) composed of a first reflector, which is a semi-elliptical reflector (1) attached by some fixing means (29) to the heat exchanger device (5) and which contemplates in its first focus (F1) a light source (4) and that its second focus (F2) is coincident with the primary focus (F1) of a segmented composite parabolic reflector (2).
  • Said segmented composite parabolic reflector (2) is composed of two segmented parabolas, the segmented parabolic surface (12) having its focus A (F3) coinciding with the second focus (F2) of the semi-elliptical reflector (1) and the second parabola segmented (13) that has its focus B (F4) coinciding with the first focus (F1) of the semi-elliptical reflector (1), since the light beams (R1) emitted by the light source (4) are generated in the first focus (F1) of the semi-elliptical reflector (1) most of the light beams (R1) will be reflected in the semi-elliptical reflector (1) and the beams (R2) will be redirected to the primary reflection plane ( 3) where the second focus (F2) coincides within this primary reflection plane (3) which reflects and disperses the light beams (R3 and R4) to the segmented composite parabolic reflector (2) to the segmented parabolic surface (12) that its focus A (F3) is coincident with the focus
  • the sum of the distribution patterns of the light beams (R5, R6 and R8) is shown in Fig. 10.
  • Said segmented composite parabolic reflector (2) that produces a turning movement (45), with respect to the vertical axis (48), which is coincident with in focus A (F3), so that when turning it continues to capture the same amount of light beams (R3, R4 and R7) but producing a deflection of the light beams (R5, R6 and R8) to one side or the other of the path to deflect the light beam to different parts.
  • the axis of rotation of the segmented composite parabolic reflector (48) is its focal focal point A (F3) it is not possible to use said axis of rotation (48) as a pivot so that at least two guides (33 and 34) located at the rear of the segmented composite parabolic reflector (2) with their respective alignment elements (32); said alignment elements (32) that are fixed to the rear of the semi-elliptical reflector (1) and that guarantee the perfect rotation of the segmented composite parabolic reflector (2) on its focus A (F2).
  • a motor system composed of an electrical part and a mechanical part provided to generate the motor force and transmit it to the optical system (Fig. 2) to adapt the light beams (R5, R6 and R8), the mechanical part characterized by at least , a simple gear (39) adapted on the shaft (40) of the drive element (38) which prints a force on at least one secondary gear (31) that is part or that can be assembled to the segmented composite parabolic reflector ( 2), to produce the rotation movement in the vertical axis (48) on said segmented composite parabolic reflector (2) which uses at least two guides (33 and 34) that serve to direct the rotation movement generated by the element motor (38) without losing the focal point (F3) of the segmented parabolic reflector compound (2).
  • the electrical part is formed by the power terminal (52) of the light source (4), by means of a conduit created in the heat sink device for this purpose; the driving element (38) which can be any electrical, pneumatic, hydraulic, magnetic device, capable of producing the necessary torque to drive the mechanism and which is assembled in a support (37) which in turn is fixed to the heat dissipating device (5), said drive element (38) which is a servomotor and which also has an electrical connection (53) for its supply.
  • the driving element (38) which can be any electrical, pneumatic, hydraulic, magnetic device, capable of producing the necessary torque to drive the mechanism and which is assembled in a support (37) which in turn is fixed to the heat dissipating device (5), said drive element (38) which is a servomotor and which also has an electrical connection (53) for its supply.
  • the drive system comprised of at least two servomotors (38) that have the ability to independently move segmented composite parabolic reflectors (2) to form different distributions of light patterns as shown in Fig. 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un nouveau système d'éclairage de type à DEL pouvant s'adapter aux conditions du parcours et de la conduite de véhicules automobiles. La technologie développée permet de projeter différents modèles d'éclairage vers différentes positions, de répondre à des besoins d'éclairage d'un véhicule voyageant à des vitesses différentes, sur des routes en ligne droite ou à virages, plates ou en pente. La technologie utilise une combinaison de réflecteurs segmentés avec des surfaces elliptiques et paraboliques, et des sources de lumières simples ou des agencements de sources de lumière.
PCT/MX2013/000014 2013-01-30 2013-01-30 Dispositif d'éclairage frontal à modèles de lumière adaptatifs WO2014119980A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3018400A1 (fr) * 2014-11-04 2016-05-11 Hyundai Motor Company Phare de véhicule
FR3056680A1 (fr) * 2016-09-29 2018-03-30 Valeo Vision Systeme d'eclairage pour vehicule automobile
EP3567308A4 (fr) * 2017-01-06 2021-03-24 Shanghai Cata Signal Co., Ltd. Système d'éclairage intégrant des faisceaux de route et de croisement, feu de croisement, et feu de route
EP3954937A1 (fr) * 2020-08-10 2022-02-16 Lumileds LLC Module d'éclairage pour phare de véhicule
US11982418B2 (en) 2020-07-24 2024-05-14 Lumileds Llc Lighting module for a vehicle headlamp

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WO2005025934A1 (fr) * 2003-09-12 2005-03-24 Richard Bryce Roan Phare a mise au point variable
EP2119958A1 (fr) * 2008-05-14 2009-11-18 Ichikoh Industries, Ltd. Lampe pour véhicule
EP2213935A1 (fr) * 2009-01-30 2010-08-04 Ichikoh Industries Limited Projecteur de véhicule automobile
EP2282110A2 (fr) * 2009-08-03 2011-02-09 Koito Manufacturing Co., Ltd Lampe véhiculaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005025934A1 (fr) * 2003-09-12 2005-03-24 Richard Bryce Roan Phare a mise au point variable
EP2119958A1 (fr) * 2008-05-14 2009-11-18 Ichikoh Industries, Ltd. Lampe pour véhicule
EP2213935A1 (fr) * 2009-01-30 2010-08-04 Ichikoh Industries Limited Projecteur de véhicule automobile
EP2282110A2 (fr) * 2009-08-03 2011-02-09 Koito Manufacturing Co., Ltd Lampe véhiculaire

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3018400A1 (fr) * 2014-11-04 2016-05-11 Hyundai Motor Company Phare de véhicule
CN106152008A (zh) * 2014-11-04 2016-11-23 现代自动车株式会社 用于车辆的灯
US9726352B2 (en) 2014-11-04 2017-08-08 Hyundai Motor Company Lamp for vehicle having a rotating reflector and a reflecting body
FR3056680A1 (fr) * 2016-09-29 2018-03-30 Valeo Vision Systeme d'eclairage pour vehicule automobile
EP3305592A1 (fr) * 2016-09-29 2018-04-11 Valeo Vision Systeme d'eclairage pour vehicule automobile
US11156334B2 (en) 2016-09-29 2021-10-26 Valeo Vision Illumination system for an automotive vehicle
EP3567308A4 (fr) * 2017-01-06 2021-03-24 Shanghai Cata Signal Co., Ltd. Système d'éclairage intégrant des faisceaux de route et de croisement, feu de croisement, et feu de route
US11982418B2 (en) 2020-07-24 2024-05-14 Lumileds Llc Lighting module for a vehicle headlamp
EP4185804A4 (fr) * 2020-07-24 2024-08-21 Lumileds Llc Module d'éclairage pour un phare de véhicule
EP3954937A1 (fr) * 2020-08-10 2022-02-16 Lumileds LLC Module d'éclairage pour phare de véhicule

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