WO2023015531A1 - Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule - Google Patents

Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule Download PDF

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Publication number
WO2023015531A1
WO2023015531A1 PCT/CN2021/112340 CN2021112340W WO2023015531A1 WO 2023015531 A1 WO2023015531 A1 WO 2023015531A1 CN 2021112340 W CN2021112340 W CN 2021112340W WO 2023015531 A1 WO2023015531 A1 WO 2023015531A1
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WO
WIPO (PCT)
Prior art keywords
light
lens
vehicle
pixelated
transmitting element
Prior art date
Application number
PCT/CN2021/112340
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English (en)
Chinese (zh)
Inventor
严梦
李辉
仇智平
刘方
金朗润
董世琨
祝贺
桑文慧
Original Assignee
华域视觉科技(上海)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华域视觉科技(上海)有限公司 filed Critical 华域视觉科技(上海)有限公司
Priority to EP21953148.0A priority Critical patent/EP4290127A4/fr
Priority to CN202180093789.8A priority patent/CN116888400A/zh
Priority to PCT/CN2021/112340 priority patent/WO2023015531A1/fr
Publication of WO2023015531A1 publication Critical patent/WO2023015531A1/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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel 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
    • F21S41/10—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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/16—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having blurred cut-off lines

Definitions

  • the present invention relates to the field of vehicle lighting, in particular to a vehicle pixelized lighting device, a vehicle lamp containing the vehicle pixelized lighting device, and a vehicle containing the vehicle lamp.
  • pixelated lighting devices have been used more and more in the technical field of vehicle lamps.
  • a pixelated lighting device for forming a pixelated light shape and a lighting device (such as a matrix lighting device) for forming a non-pixelated light shape are superimposed, that is, a pixelated light shape and a non-pixelated light shape Shape overlay, both have a certain overlay area and overlay boundary.
  • the superimposed light shape of the pixelated light shape and non-pixelated light shape of the headlight in the high beam lighting mode is shown in Figure 1
  • the pixelated light shape and non-pixelated light shape of the headlight in the low beam lighting mode The superimposed light shape of the shape is shown in Figure 2.
  • area a is a pixelated light shape
  • area b is a non-pixelated light shape
  • c is the superimposed boundary of a pixelated light shape and a non-pixelated light shape
  • d is a low beam
  • the cutoff line is formed by the pixelated light shape area passing through several areas of light and dark.
  • the pixelated light shape is shown in FIG. 3
  • the simulated road surface light shape formed by superimposing the pixelated light shape and the non-pixelated light shape is shown in FIG. 4 .
  • the area a1 is the pixelated light shape
  • the area c1 is the overlapping boundary of the pixelated light shape and the non-pixelated light shape, that is, the lower boundary area of the pixelated light shape.
  • the object of the present invention is to provide a pixelated lighting device for vehicles, which can blur the boundary of the pixelated light shape, so that after superimposing it with the non-pixelated light shape, the transition at the superimposed boundary is uniform , Good coherence.
  • the present invention provides a vehicle pixelized lighting device, which includes a pixel lighting source and a lens group arranged in sequence along the light emitting direction, the pixel lighting source has an integral light-emitting surface facing the lens group; the vehicle pixelated lighting
  • the device also includes a light-transmitting element fixed between the pixel illuminating light source and the lens group, the light-transmitting element is arranged at the boundary of the pixel illuminating light source, and at least covers part of the boundary of the overall light-emitting surface of the pixel illuminating light source;
  • the light-transmitting element has a light-incident surface facing the pixel illumination source and a light-emitting surface facing the lens group; the light-transmitting element is used to change the deflection angle of the light entering the pixel illumination light source, and enter the lens group
  • the deflected light, the intersection point of the reverse extension line of the deflected light and the plane where the overall light-emitting surface is located is
  • the light-transmitting element covers the upper boundary of the entire light-emitting surface of the pixel illumination light source.
  • the light-transmitting element covers a whole boundary of the entire light-emitting surface of the pixel illumination light source.
  • the light-transmitting element is a silicone part.
  • the light-emitting surface of the light-transmitting element has at least one of an arc-shaped section, a vertical plane section, a horizontal plane section, and an inclined plane section.
  • the light incident surface of the light-transmitting element has at least one of an arc-shaped section, a vertical plane section, a horizontal plane section, and an inclined plane section.
  • the distance between the pixel illumination light source and the light-transmitting element is less than or equal to 0.5 mm.
  • the lens group includes a first lens, a second lens and a third lens arranged in sequence along the light emitting direction, the first lens is a lens with positive refractive power, and the second lens is a lens with negative refractive power The third lens is a lens with positive refractive power.
  • the Abbe numbers of the first lens and the third lens are larger than the Abbe number of the second lens.
  • the material of the first lens is optical glass
  • the material of the second lens is PC
  • the material of the third lens is PMMA
  • the vehicle pixelated lighting device also includes a lens holder, a circuit board and a heat sink, the first lens, the second lens and the third lens are installed in the lens holder, and the pixel illumination light source is installed on the circuit board
  • the heat sink, the circuit board and the lens bracket are fixedly connected in sequence along the light emitting direction, and the light-transmitting element is fixed on the lens bracket or the circuit board.
  • the vehicle pixelated lighting device also includes a first limiting ring and a second limiting ring both arranged in the lens bracket, and a beam limiting element screwed to one end of the lens bracket, the lens
  • the other end of the bracket is provided with a first limiting part
  • the inner wall is provided with a second limiting part and a third limiting part
  • the outer peripheral surfaces of the first lens, the second lens and the third lens are all abutted against the lens
  • the first lens is limited between the first limiting part and the first limiting ring
  • the second lens is limited between the second limiting part and the second limiting ring
  • the third lens is limited between the third limiting portion and the light beam limiting element.
  • the beam limiting member is an aperture stop.
  • the present application also provides a vehicle lamp, in which the vehicle pixelated lighting device as described above is arranged.
  • the present application further provides a vehicle, which is equipped with the above-mentioned vehicle light.
  • vehicle pixelated lighting device As mentioned above, the vehicle pixelated lighting device, vehicle lamp and vehicle involved in the present invention have the following beneficial effects:
  • a light-transmitting element covering at least part of the boundary of the pixel illumination light source is provided to change the deflection angle of the part of the light entering the light-transmitting element, so that this part of the light is deflected relative to the original, forming a deflection
  • the light enters the lens group, and the intersection point of the reverse extension line of the deflected light and the plane where the overall light-emitting surface is located is located outside the light-emitting point of the deflected light corresponding to the incident light, so the exit angle of this part of light after passing through the lens group becomes larger , thereby realizing that the light-transmitting element makes the part of the light incident into it extend directionally to the outside away from the center of the pixelated light shape, thereby realizing the virtualization of the boundary of the pixelated light shape, so that the pixelated light shape is in its
  • the transition at the blurred boundary is soft, which finally makes the pixelated light shape and non-pixelated light shape superimposed at the super
  • FIG. 1 is a schematic diagram of the light shape of a vehicle lamp provided with a pixelated lighting device for a conventional vehicle in a high beam lighting mode.
  • FIG. 2 is a schematic diagram of the light shape of a vehicle lamp provided with a pixelated lighting device for a conventional vehicle in a low beam lighting mode.
  • FIG. 3 is a schematic diagram of a conventional pixelated light shape with a low beam cut-off line.
  • FIG. 4 is a schematic diagram of a simulated road surface light shape after the existing pixelated light shape and non-pixelated light shape are superimposed.
  • FIG. 5 is a schematic structural diagram of a pixelated lighting device for a vehicle in the present application.
  • FIG. 6 is an exploded view of FIG. 5 , in which the light-transmitting element is omitted.
  • FIG. 7 is a cross-sectional view of FIG. 5 .
  • Fig. 8 is a schematic diagram of assembly of a pixel illumination light source, a lens group, a light-transmitting element and a lens holder in the pixelized vehicle lighting device of the present application.
  • FIG. 9 is a schematic diagram of assembly of a pixel illumination light source, a lens group and a light-transmitting element in the vehicle pixelized illumination device of the present application.
  • FIG. 10 is a schematic structural diagram of a pixel illumination light source in the present application.
  • Fig. 11 is a schematic diagram of the assembly of the pixel illumination light source and the light-transmitting element in the present application.
  • FIG. 12 is a schematic structural diagram of a light-transmitting element in the present application.
  • 13a to 13c are cross-sectional views of different embodiments of the light-transmitting element in this application.
  • FIG. 14 is a sectional view of FIG. 11 .
  • FIG. 15 is a schematic diagram of propagation of light at the upper boundary of the pixel illumination light source in FIG. 14 after being deflected by the light-transmitting element.
  • Fig. 16 is an imaging diagram on the light distribution screen when a single light-emitting unit is turned on and no light-transmitting element is provided.
  • Fig. 17 is an imaging diagram of a single light-emitting unit in the present application after it is lit and a light-transmitting element is set on the light distribution screen.
  • FIG. 18 is a schematic diagram of a pixelated light shape formed when the pixelated lighting device is not provided with a light-transmitting element.
  • FIG. 19 is a schematic diagram of a pixelated light shape formed after a pixelated lighting device for a vehicle in the present application is provided with a light-transmitting element at the boundary of a full circle of the pixel lighting light source.
  • FIG. 20 is a schematic diagram of a pixelated light shape with a low beam cut-off line in the present application.
  • FIG. 21 is a schematic diagram of the simulated road surface light shape after superimposing the pixelated light shape and the non-pixelated light shape in the present application.
  • first”, “second”, and “third” are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the number of indicated technical features.
  • the features of “first”, “second”, and “third” may expressly or implicitly include one or more of said features.
  • the present application provides a vehicle, the vehicle is equipped with a vehicle light, and the vehicle light may be a vehicle headlight or a vehicle rear light; further, the vehicle light is equipped with a vehicle pixelated lighting device for forming a pixelated light shape.
  • the light output direction of the vehicle pixelized lighting device is defined as the front direction, that is, the light source in the vehicle pixelized lighting device emits light forward, and the vehicle pixelized lighting device forms a pixelated light shape.
  • dispersion refers to the property that the refractive index of the material changes with the frequency of the incident light.
  • white light consists of seven monochromatic lights: red, orange, yellow, green, blue, indigo, and purple.
  • the degree of dispersion is generally related to the structure of the lens and the material of the lens. The short-wave dispersion is inward and the long-wave dispersion is outward, while the short-wave dispersion of the negative focal power lens is outward and the long-wave dispersion is inward.
  • chromatic aberration refers to chromatic aberration.
  • white light is used for imaging, different monochromatic lights have different refractive indices to cause dispersion, so that different monochromatic lights have different propagation paths, thus presenting aberrations caused by differences in the optical paths of different monochromatic lights.
  • the vehicle pixelated lighting device includes a pixel lighting source 10, a light-transmitting element 30 and a lens group 20 arranged in sequence from back to front along the light emitting direction, Then the light-transmitting element 30 is fixed between the pixel illuminating light source 10 and the lens group 20, and the light emitted forward by the pixel illuminating light source 10 can form a pixelated light shape after passing through the lens group 20; 10, and the light-emitting surface facing the lens group 20. As shown in FIG.
  • the front end surface of the pixel lighting source 10 is provided with a plurality of light-emitting units 12 arranged in a matrix, and the light-emitting surfaces of the plurality of light-emitting units 12 form the overall light-emitting surface 11 of the pixel lighting source 10.
  • the overall light-emitting surface 11 The light incident surface facing the lens group 20 and the light incident surface of the light-transmitting element 30 ; the outer edge of the pixel illumination source 10 is its boundary; the outer edge of the overall light emitting surface 11 of the pixel illumination light source 10 is its boundary.
  • the light-transmitting element 30 is arranged at the boundary of the pixel illumination source 10 and at least covers part of the boundary of the overall light-emitting surface 11 of the pixel illumination light source 10, then the inner edge of the light-transmitting element 30 should be located therein. This part of the overall light-emitting surface 11 covers the inner side of the inner edge.
  • the light-transmitting element 30 can only cover the lower boundary, or the upper boundary, or the left boundary, or the right boundary of the overall light-emitting surface 11 of the pixel lighting source 10;
  • the lower boundary and the upper boundary of the surface 11 ; or: the light-transmitting element 30 may simultaneously cover a whole boundary of the entire light-emitting surface 11 of the pixel illumination source 10 .
  • the overall light-emitting surface 11 of the pixel illumination light source 10 emits light forward, and part of the light enters the light-transmitting element 30. This part of the light entering the light-transmitting element 30 is defined as the incident light P1, as shown in FIG.
  • the light source 10 emits the incident light P1 forward at one of its light-emitting points A, and the light-transmitting element 30 is used to change the deflection angle of the incident light P1 incident by the pixel illumination light source 10 and transmit the incident light P1 to the lens group 20 accordingly.
  • the deflected ray P2 is incident; the intersection points A1 and A2 of the reverse extension line of the deflected ray P2 and the plane where the overall light-emitting surface 11 is located are located outside the light-emitting point A of the incident ray P1 corresponding to the deflected ray P2 , that is, the intersection points A1 and A2 are farther away from the center of the overall light-emitting surface 11 than the light-emitting point A.
  • the light-transmitting element 30 When the light-transmitting element 30 is only arranged at the upper boundary of the pixel illuminating light source 10 and only covers the upper boundary of the overall light-emitting surface 11 of the pixel illuminating light source 10, the overall light-emitting surface 11 of the pixel illuminating light source 10 emits light forward, and the overall light-emitting surface 11
  • the incident light P1 emitted from the upper boundary part enters the light-transmitting element 30, as shown in Figure 15, the light-transmitting element 30 changes the deflection angle of this part of the incident light P1, and then emits the deflected light P2, and then makes this part of the deflected light P2 enters the lens group 20 .
  • the two incident rays P1 emitted forward at the luminous point A respectively enter the lens group 20 along the original propagation direction S1 direction and Y1 direction, and appear on the light distribution screen.
  • the lower boundary of the illuminated area corresponding to the upper boundary of the overall light-emitting surface 11 is not blurred.
  • the two incident light rays P1 emitted forward from the above-mentioned light-emitting point A are deflected into deflected light rays P2 after passing through the light-transmitting element 30, and the two deflected light rays P2 are respectively along the deflected
  • the propagating directions S2 and Y2 enter the lens group 20; it can be seen from FIG. 15 that among the two incident rays P1 emitted forward at the luminous point A, the deflected ray P2 corresponding to one incident ray P1 is along the reverse direction of the S2 direction.
  • intersection point of the extension line and the plane where the overall light-emitting surface 11 of the pixel lighting source 10 is located is A1
  • the opposite extension line along the Y2 direction of the deflected ray P2 corresponding to the other incident ray P1 is located at the point where the overall light-emitting surface 11 of the pixel lighting source 10 is located.
  • the intersection of the planes is A2, and both points A1 and A2 are higher than the light-emitting point A, that is, both points A1 and A2 are located outside the light-emitting point A, and are farther away from the overall light-emitting surface 11 of the pixel illumination light source 10 than the light-emitting point A.
  • the imaging on the light distribution screen after the light-transmitting element 30 is set in this application is shown in Figure 17.
  • the lower boundary of the lighting area corresponding to the upper boundary of the overall light-emitting surface 11 has a virtual effect, and the lower boundary of this part of the lighting area Extending downward (that is, outward), the isolux lines are sparser and the light is softer.
  • the light-transmitting element 30 when the light-transmitting element 30 is only arranged at the lower boundary of the pixel illumination light source 10 and only covers the lower boundary of the overall light-emitting surface 11 of the pixel illumination light source 10, the light-transmitting element 30 deflects the light upwards, causing pixelation The light shape has light above the original light spot, which realizes the blurring of the upper boundary of the pixelated light shape.
  • the light-transmitting element 30 is only arranged at the left boundary of the pixel illuminating light source 10 and only covers the left boundary of the overall light-emitting surface 11 of the pixel illuminating light source 10, the light-transmitting element 30 deflects the light to the right, resulting in a pixelated light shape.
  • the light-transmitting element 30 is only arranged at the right boundary of the pixel illuminating light source 10 and covers only the right boundary of the overall light-emitting surface 11 of the pixel illuminating light source 10, the light-transmitting element 30 deflects the light to the left, resulting in a pixelated light shape. There is light on the left side of the original light spot, and the blurring of the left boundary of the pixelated light shape is realized.
  • a light-transmitting element 30 covering at least part of the boundary of the pixel illumination light source 10 is provided to change the deflection angle of the part of the light incident on the light-transmitting element 30, so that this part of the light is deflected relative to the original.
  • Refracted and formed deflected light P2 enters the lens group 20, and the intersection point of the reverse extension line of the deflected light P2 and the plane where the overall light-emitting surface 11 is located is located outside the light-emitting point of the deflected light P2 corresponding to the incident light P1, so this
  • the outgoing angle of part of the light rays after passing through the lens group 20 becomes larger, so that the light-transmitting element 30 makes the part of the light rays incident into it extend directionally to the outside of the pixelated light shape, thereby realizing the boundary of the pixelated light shape
  • the virtualization makes the pixelated light shape transition softly at its blurred boundary, and finally makes the pixelated light shape and non-pixelated light shape superimposed at the overlapping boundary c1 with uniform transition and good cohesion, as shown in Figure 20 and Figure 21 shown.
  • the present application uses the transparent element 30 to blur the boundary of the pixelated light shape, and the transparent element 30 does not block light, so light energy is not lost, and the utilization rate of light energy is improved.
  • the illumination range of the blurred pixelated light shape is expanded, so the blur effect will also expand the illumination range of the entire light shape.
  • the light-transmitting element 30 is only set on the boundary, and the imaged light shape of the central pixel will not be blurred, and the edge pixels will only be blurred toward the edge, so the shading effect between pixels will not be affected, that is, the blurred light Will not shoot into the adjacent pixel area.
  • the light-transmitting element 30 at least covers the upper boundary of the pixel illumination light source 10, at least blurring the lower boundary of the pixelated light shape, making the transition of the road surface softer, and better matching with the auxiliary low beam light shape. connect. More preferably, in this embodiment, as shown in FIG. 11, FIG. 12, and FIG.
  • the light-transmitting element 30 is an annular member, and the light-transmitting element 30 covers a full circle boundary of the pixel illumination light source 10; no light-transmitting element is provided
  • the pixelized light shape formed is shown in Figure 18, and the boundary of the entire light shape is relatively sharp; after a full circle of light-transmitting elements 30 is installed in this application, the formed pixelated light shape is shown in Figure 19. Blur the entire boundary of the pixelated light shape, and make the boundary of the entire pixelated light shape softly transition.
  • the light-transmitting element 30 that only covers the upper boundary of the overall light-emitting surface 11 can be provided at the upper boundary of the pixel illumination light source 10. At this time, only the light emitted from the upper boundary of the overall light-emitting surface 11 is directed to The light is deflected downward, but the light emitted from the lower boundary, left boundary and right boundary of the overall light-emitting surface 11 still propagates in the original propagation direction without deflection, and will not affect the lighting areas on the upper side and the left and right sides. It is also possible to set the light-transmitting element 30 that only covers the lower boundary of the entire light-emitting surface 11 at the lower boundary of the pixel illumination light source 10.
  • the light-transmitting element 30 can be provided at the corresponding boundary of the pixel illumination light source 10 according to the specific requirement of blurring the boundary of the pixelated light shape.
  • the light-transmitting element 30 is made of silica gel, that is, the light-transmitting element 30 is made of silica gel, which can effectively reduce the manufacturing cost while realizing blurred and pixelated light-shape boundaries.
  • the distance between the pixel lighting source 10 and the light-transmitting element 30 is less than or equal to 0.5mm, preferably 0.5mm, to prevent collision or overheat.
  • the distance between the pixel illumination light source 10 and the light-transmitting element 30 may also be greater than 0.5 mm.
  • the light-emitting surface of the light-transmitting element 30 may be a plane or a curved surface with patterns
  • the light-incident surface of the light-transmitting element 30 may be a plane or a curved surface with patterns, which are distributed on the upper and lower sides of the pixel illumination light source 10.
  • the light-transmitting elements 30 on the side or the left and right sides can be arranged symmetrically or asymmetrically, as long as the light-incident surface and the light-emitting surface of the light-transmitting element 30 match, the outgoing angle of the light entering it is adjusted to make the light deflection. Fold to the desired exit angle. Based on this, there are many specific forms of the light-transmitting element 30. For example, as shown in FIG.
  • the light-emitting surface on the front side of the light-transmitting element 30 is composed of a plurality of angled inclined plane segments 34; as another example: as shown in FIG. It is a planar structure, and the light-emitting surface on the front side of the light-transmitting element 30 is composed of a plurality of arc-shaped surface segments 31 and a plurality of horizontally extending horizontal plane segments 33;
  • the light surface is composed of vertical plane segments 32 extending up and down, and has a planar structure, and the light emitting surface on the front side of the light-transmitting element 30 is composed of inclined plane segments 34 extending obliquely.
  • the pixel illumination light source 10 is a matrix LED light source with tens to hundreds of pixels, in this embodiment, it is 100 pixels, and the size of the pixels is about 0.5mm side length, so that the definition of the formed pixel image can be made higher , which in turn can achieve higher-precision regulation of the light shape formed after the pixel image is projected, and the formed dark part boundary and dark part position changes are also more refined and smooth, which can better avoid dazzling pedestrians or drivers Or blinding, and, in a rectangular array, a wider light shape can be obtained to illuminate the areas on both sides of the road, which is conducive to the driver's observation of pedestrians and road signs on both sides of the road.
  • the vehicle pixelated lighting device also includes a lens holder 40, a circuit board 50 and a heat sink 60;
  • the lens group 20 includes a first lens 21, a The second lens 22 and the third lens 23, the first lens 21 is a lens with positive refractive power, the second lens 22 is a lens with negative refractive power, and the third lens 23 is a lens with positive refractive power; 21.
  • Both the second lens 22 and the third lens 23 are installed in the lens holder 40, the pixel illumination light source 10 is installed on the circuit board 50, the heat sink 60, the circuit board 50 and the lens holder 40 are fixedly connected in sequence along the light emitting direction, and the light transmission
  • the element 30 is fixed on the lens holder 40 or the circuit board 50 .
  • the vehicle pixelated lighting device also includes a first limiting ring 70 and a second limiting ring 80 which are both arranged in the lens holder 40 , and a screw threaded on the front end of the lens holder 40 .
  • the light beam limiting element 90, the first limiting ring 70 and the second limiting ring 80 are fixedly assembled in the lens holder 40 in a tightly fitting manner, and the rear end of the inner wall of the lens holder 40 is provided with a first limiter that is bent and extended inwardly.
  • the position portion 41, the inner wall of the lens holder 40 is provided with a second limit portion 42 and a third limit portion 43 protruding inward, the first limit portion 41, the first limit ring 70, the second limit portion 42 , the second limiting ring 80, the third limiting part and the beam limiting element 90 are distributed sequentially from back to front along the light emitting direction, and the outer peripheral surfaces of the first lens 21, the second lens 22 and the third lens 23 are all in contact with the lens
  • the first lens 21 is limited between the first limiting portion 41 and the first limiting ring 70
  • the second lens 22 is limited between the second limiting portion 42 and the second limiting ring.
  • the third lens 23 is limited between the third limiting portion 43 and the light beam limiting element 90 .
  • the first lens 21 , the second lens 22 and the third lens 23 are sequentially arranged and fixedly installed inside the lens holder 40 , and the first lens 21 is pressed tightly by the first limiting ring 70 and the first limiting part 41
  • the second lens 22 is pressed in place by the second limiting ring 80 and the second limiting part 42
  • the third lens 23 is pressed in place by the beam limiting element 90 and the third limiting part 43, so that the first The lens 21 , the second lens 22 and the third lens 23 can be closely arranged inside the lens holder 40 to effectively reduce the overall volume and facilitate miniaturization design.
  • the present application uses the first limiting ring 70, the second limiting ring 80 and the beam limiting element 90 to limit the front and rear of the lens group 20, without additionally setting a limiting component inside the lens holder 40, which can reduce the impact on the lens.
  • the manufacturing precision requirement of the bracket 40 reduces the production cost to a certain extent.
  • the light beam limiting element 90 is threaded on the outer periphery of the front end of the lens holder 40, and there is a detachable connection between the two, which is convenient for the first lens 21, the first limiting ring 70, the second lens 22, the second limiting ring 80 and The third lens 23 is sequentially loaded into the lens holder 40 .
  • the beam limiting element 90 is preferably an aperture stop, and the aperture stop determines the size of the passing light beam of the lens group 20 .
  • the rear end of the outer wall of the lens holder 40 can be provided with an outwardly bent mounting seat, the circuit board 50 is mounted on the mounting seat, and the heat sink 60 is mounted on the rear side of the circuit board 50, which is convenient for pixel alignment.
  • the illuminating light source 10 can dissipate heat; and an opening can also be provided on the mounting seat to facilitate the placement of connectors, so as to realize power supply to the circuit board 50 and the pixel illuminating light source 10, and can also play a role in ventilation and heat dissipation to improve heat dissipation power.
  • the outer diameter of the first lens 21 is smaller than the outer diameter of the second lens 22, and the outer diameter of the second lens 22 is smaller than the outer diameter of the third lens 23, which can conform to the outgoing direction of the light, ensure the efficiency of light transmission, and improve the illumination brightness .
  • the Abbe numbers of the materials of the first lens 21 and the third lens 23 are larger than the Abbe numbers of the materials of the second lens 22 , which can help eliminate chromatic aberration.
  • the Abbe number is the dispersion coefficient, which is used to measure the degree of light dispersion of the transparent medium; generally speaking, under the premise of the same optical power, the smaller the Abbe number of the medium, the more serious the dispersion; conversely, the Abbe number of the medium The larger the value, the lighter the dispersion.
  • the material of the first lens 21 is optical glass, such as selecting the optical glass of H-K9L, the material of the second lens 22 is PC (polycarbonate), and the material of the third lens 23 is PMMA (polymethyl Methyl acrylate), better eliminate chromatic aberration.
  • the outer peripheral side of the third lens 23 is provided with a lens flange structure 231, and the outer peripheral surface of the lens flange structure 231 abuts against the inner wall of the lens holder 40, which can ensure that the part used for light transmission will not be blocked by the lens holder 40.
  • the connection structure is blocked, thereby ensuring the efficiency of light transmission and improving the brightness of illumination.
  • the lens flange structure 231 is also used to abut against the light beam limiting element 90 and the third limiting part 43 to limit and fix the third lens 23 between the beam limiting element 90 and the third limiting portion 43 .
  • At least one of the first lens 21, the second lens 22 and the third lens 23 is provided with an anti-reflection film on the light incident surface and/or the light exit surface, which can improve the light incident surface or the light exit surface provided with the anti-reflection film.
  • the light transmittance of the surface is enhanced to enhance the light transmittance performance, thereby improving the lighting brightness.
  • the outer peripheral surface of the first lens 21, the outer peripheral surface of the second lens 22, and the lens burring structure 231 of the third lens 23 are provided with a light-shielding layer to reduce light from the first lens 21, the second lens 22, and the second lens.
  • the edge of the three lenses 23 emerges; the light-blocking layer can be formed by matte black treatment to prevent stray light;
  • the light shape can be consistent with the pixel image, and will not produce random distribution of light spots.
  • the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Dispositif d'éclairage pixélisé de véhicule, lampe de véhicule et véhicule. Le dispositif d'éclairage pixélisé de véhicule comprend une source de lumière d'éclairage à pixels (10), un élément de transmission de lumière (30) et un ensemble lentille (20). La source de lumière d'éclairage à pixels (10) est dotée d'une surface d'émission de lumière intégrale (11). L'élément de transmission de lumière (30) est agencé au niveau du bord de la source de lumière d'éclairage à pixels (10) et recouvre au moins une partie du bord de la surface d'émission de lumière intégrale (11) de la source de lumière d'éclairage à pixels (10). L'élément de transmission de lumière (30) est utilisé pour modifier l'angle de déviation d'un rayon de lumière émis à partir de la source de lumière d'éclairage à pixels (10) dans l'élément de transmission de lumière (30) et pour émettre un rayon de lumière de polarisation vers l'ensemble lentille (20). L'intersection de la ligne d'extension inverse du rayon de lumière de polarisation et du plan de la surface d'émission de lumière intégrale (11) est située à l'extérieur du point d'émission de lumière d'une lumière incidente correspondant au rayon de lumière de polarisation. La partie de lumière entrant dans l'élément de transmission de lumière (30) est dirigée au niveau d'un point éloigné de l'extérieur d'un point central de forme de lumière pixélisée au moyen de l'élément de transmission de lumière (30), ce qui permet d'obtenir un flou d'un bord de forme de lumière pixélisée, de sorte que la forme de lumière pixélisée présente une transition douce au niveau du bord de flou de celle-ci, et enfin, après que la forme de lumière pixélisée et la forme de lumière non pixélisée sont superposées, la transition est uniforme au niveau du bord de superposition, et la connectivité est bonne.
PCT/CN2021/112340 2021-08-12 2021-08-12 Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule WO2023015531A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21953148.0A EP4290127A4 (fr) 2021-08-12 2021-08-12 Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule
CN202180093789.8A CN116888400A (zh) 2021-08-12 2021-08-12 一种车辆像素化照明装置、车灯及车辆
PCT/CN2021/112340 WO2023015531A1 (fr) 2021-08-12 2021-08-12 Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule

Applications Claiming Priority (1)

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PCT/CN2021/112340 WO2023015531A1 (fr) 2021-08-12 2021-08-12 Dispositif d'éclairage pixélisé de véhicule, phare de véhicule et véhicule

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103765086A (zh) * 2011-09-01 2014-04-30 株式会社小糸制作所 车辆用前照灯装置
CN104879665A (zh) * 2015-06-05 2015-09-02 北京安达维尔民用航空技术有限公司 一种去除杂光的照明灯具
CN109477621A (zh) * 2016-08-04 2019-03-15 Zkw集团有限责任公司 机动车辆照明装置
EP3502550A1 (fr) * 2017-12-22 2019-06-26 Valeo Vision Faisceau lumineux segmente realisant des fonctions d'eclairage
CN209819455U (zh) * 2019-06-13 2019-12-20 广州彩熠灯光股份有限公司 一种led染色舞台灯的光学系统
CN111237712A (zh) * 2020-02-28 2020-06-05 华域视觉科技(上海)有限公司 车灯像素化照明显示系统及车灯
CN211345142U (zh) * 2020-02-28 2020-08-25 华域视觉科技(上海)有限公司 车灯像素化照明显示系统及车灯
CN112539393A (zh) * 2020-11-16 2021-03-23 复旦大学 一种远光照明装置、车灯和车辆

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103765086A (zh) * 2011-09-01 2014-04-30 株式会社小糸制作所 车辆用前照灯装置
CN104879665A (zh) * 2015-06-05 2015-09-02 北京安达维尔民用航空技术有限公司 一种去除杂光的照明灯具
CN109477621A (zh) * 2016-08-04 2019-03-15 Zkw集团有限责任公司 机动车辆照明装置
EP3502550A1 (fr) * 2017-12-22 2019-06-26 Valeo Vision Faisceau lumineux segmente realisant des fonctions d'eclairage
CN209819455U (zh) * 2019-06-13 2019-12-20 广州彩熠灯光股份有限公司 一种led染色舞台灯的光学系统
CN111237712A (zh) * 2020-02-28 2020-06-05 华域视觉科技(上海)有限公司 车灯像素化照明显示系统及车灯
CN211345142U (zh) * 2020-02-28 2020-08-25 华域视觉科技(上海)有限公司 车灯像素化照明显示系统及车灯
CN112539393A (zh) * 2020-11-16 2021-03-23 复旦大学 一种远光照明装置、车灯和车辆

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EP4290127A1 (fr) 2023-12-13
CN116888400A (zh) 2023-10-13

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