WO2022111467A1 - Module d'éclairage de pixel, dispositif d'éclairage de véhicule, et véhicule - Google Patents

Module d'éclairage de pixel, dispositif d'éclairage de véhicule, et véhicule Download PDF

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Publication number
WO2022111467A1
WO2022111467A1 PCT/CN2021/132410 CN2021132410W WO2022111467A1 WO 2022111467 A1 WO2022111467 A1 WO 2022111467A1 CN 2021132410 W CN2021132410 W CN 2021132410W WO 2022111467 A1 WO2022111467 A1 WO 2022111467A1
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WO
WIPO (PCT)
Prior art keywords
lens
pixel
lighting module
module according
holder
Prior art date
Application number
PCT/CN2021/132410
Other languages
English (en)
Chinese (zh)
Inventor
张大攀
严梦
严海月
金朗润
仇智平
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.)
Filing date
Publication date
Priority claimed from CN202022811397.6U external-priority patent/CN214064802U/zh
Priority claimed from CN202022811887.6U external-priority patent/CN214009109U/zh
Priority claimed from CN202022811426.9U external-priority patent/CN214064803U/zh
Priority claimed from CN202121356160.1U external-priority patent/CN215675044U/zh
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
Publication of WO2022111467A1 publication Critical patent/WO2022111467A1/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]
    • F21S41/151—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
    • 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

Definitions

  • the present invention relates to vehicle lighting equipment, in particular, to a pixel lighting module.
  • the present invention also relates to a vehicle lighting device and a vehicle.
  • a method for pixel lighting which integrates several pixel-level tiny LED units into a matrix LED light source module, and each LED unit can be independently switched, so that the matrix LED light source
  • the module can display the required pixel image, and project the pixel image through the imaging lens module, so as to achieve intuitive and visual information exchange, and when encountering pedestrians and vehicles, the matrix LED light source module can turn off some of the LED unit to reduce the local brightness of the light area to avoid dazzling or blinding pedestrians or drivers.
  • a pixel lighting module needs to be designed.
  • the technical problem to be solved by the present invention is to provide a pixel lighting module, the overall volume of the pixel lighting module is small, the structure is simplified, the miniaturization is convenient, and the application of the pixel lighting technology in small vehicles is convenient.
  • a further technical problem to be solved by the present invention is to provide a vehicle lighting device, which is convenient for miniaturized design and has good pixel lighting effect.
  • the technical problem to be solved by the present invention is to provide a vehicle with good pixel lighting effect and higher driving safety at night.
  • the present invention provides a pixel illumination module, including a pixel illumination light source and an imaging lens module.
  • the imaging lens module includes a lens support and a lens group placed in the lens support, and the lens group includes at least Two lenses, the pixel illumination light source includes a plurality of independently controllable LED units to form a desired pixel image, and the pixel image is projected through the lens group.
  • the lens group includes a first lens, a second lens and a third lens arranged in sequence from the object side to the image side, the first lens is a lens with positive refractive power, and the second lens is a lens with negative refractive power, and the third lens is a lens with positive refractive power.
  • the first lens is provided with a first lens flanging structure fixedly connected to the inner wall of the lens holder
  • the second lens is provided with a second lens fixedly connected to the inner wall of the lens holder
  • the third lens is provided with a third lens flanging structure fixedly connected with the inner wall of the lens holder.
  • the lens holder is provided with a first chamber, a second chamber and a third chamber in sequence from the object side to the image side, and a connection between the first chamber and the second chamber is formed.
  • the first chamber step structure, and the diameter of the first chamber side of the first chamber step structure is larger than the diameter of the second chamber side;
  • the second chamber and the third chamber A second chamber step structure is formed at the connection of the chambers, and the diameter of one side of the third chamber at the second chamber step structure is larger than the diameter of one side of the second chamber;
  • the side of the first lens flanging structure that is close to the light exit surface of the first lens is connected to the step structure of the first chamber; the second lens flanging structure is close to the light incident surface of the second lens.
  • One side is connected with the second chamber step structure; the side of the second lens flanging structure close to the light-emitting surface of the second lens and the third lens flanging structure close to the third lens incident light connected side-to-side.
  • a light blocking layer is provided on the first lens flanging structure, the second lens flanging structure and the third lens flanging structure.
  • the first limiting ring is connected to the lens holder so as to be able to abut the first lens on the inner wall of the lens holder
  • the second lens is connected to the inner wall of the lens holder
  • the first beam limiting element is connected with the lens holder, so that the third lens can be pressed against the inner wall of the lens holder
  • the pixel illumination light source is arranged behind the first mounting bracket
  • the lens bracket and the first installation bracket can be relatively movable connected, so as to be able to adjust the distance between the lens group formed by the first lens, the second lens and the third lens and the pixel illumination light source.
  • the first lens is provided with a first flanging structure abutting against the inner wall of the lens holder
  • the second lens is provided with a second flanging structure fixedly connected to the inner wall of the lens holder
  • the third lens is provided with a third flanging structure abutting against the inner wall of the lens holder.
  • a first stepped structure abutting against the first flanging structure, a second stepped structure fixedly connected with the second flanging structure, and a third stepped structure are formed on the inner wall of the lens holder.
  • the third step structure abutting the flanging structure.
  • a light blocking layer is provided on the first flanging structure, the second flanging structure and the third flanging structure.
  • the first beam limiting element and the first limiting ring are respectively detachably connected to the lens holder.
  • the lens holder also includes a second beam limiting element, a second limiting ring and a third limiting ring, one end of the lens holder forms a limiting portion, and the lens holder is arranged in sequence from the object side to the image side.
  • the first lens, the second lens and the third lens the first lens is provided between the second limiting ring and the limiting part, and the second lens is provided on the first
  • the third lens is arranged between the second beam limiting element and the third limiting ring, the second beam limiting element and the the lens bracket is connected, so that the first lens can be limited and fixed between the second limit ring and the limit part, and the second lens can be limited and fixed between the third limit ring and the limit part.
  • the third lens is limited and fixed between the second beam limiting element and the third limiting ring.
  • the third lens is provided with a fourth flanging structure abutting against the inner wall of the lens holder.
  • the outer peripheral surface of the first lens, the outer peripheral surface of the second lens, and the outer peripheral surface of the fourth flanging structure are at least partially connected to the inner wall of the lens holder.
  • a light blocking layer is provided on the fourth flanging structure.
  • both the inner surface of the second limiting ring and the inner surface of the third limiting ring are formed as tapered surfaces whose diameters gradually increase from the object side to the image side.
  • the second beam limiting element is detachably connected to the lens holder.
  • At least one of the first lens, the second lens and the third lens is provided with an anti-reflection coating on the light incident surface and/or the light exit surface.
  • the first lens is made of material one
  • the second lens is made of material two
  • the third lens is made of material three
  • the Abbe number of material one is the same as that of material three.
  • the Abbe numbers of all are greater than the Abbe numbers of the material two.
  • the lens group is installed in the lens bracket, the lens bracket is installed on the third installation bracket, and the pixel illumination light source is installed on the circuit
  • the third mounting bracket is fixedly connected to the circuit board, and a focusing structure capable of adjusting the relative positions of the lens bracket and the third mounting bracket along the arrangement direction of the lens group is arranged between the lens bracket and the third mounting bracket .
  • the third mounting bracket includes a mounting seat matched with the lens bracket, and the focusing structure is provided between the lens bracket and the mounting seat, so that the lens bracket can The mounting seat is moved upward to adjust the relative positions of the lens bracket and the third mounting bracket along the arrangement direction of the lens group.
  • the third mounting bracket further includes a mounting plate that is fixedly connected to the circuit board, the mounting seat is arranged on a side of the mounting plate away from the circuit board, and the mounting plate is provided with The lens holder through which the lens holder passes is perforated.
  • the focusing structure includes waist-shaped holes arranged on both sides of the lens bracket and extending along the arrangement direction of the lens groups, fasteners are arranged in the waist-shaped holes, and the lens bracket passes through the lens bracket.
  • the fastener is detachably fixed on the third mounting bracket.
  • the lens group further includes a fourth lens, the fourth lens, the first lens, the second lens, and the third lens are arranged in sequence along the light exit direction of the pixel illumination light source, and the fourth lens It is a meniscus lens with positive refractive power.
  • the inner wall surface of the lens holder is provided with a step structure which is matched with each of the lenses in a one-to-one correspondence, and the outer peripheral surface of each lens is glued on the corresponding stepped side surface of the step structure.
  • light blocking sheets are provided around the light exit surfaces of the fourth lens and the second lens, and the light blocking sheets are mounted on the lens holder.
  • a fifth flanging structure is provided on the third lens, and a lens blocking ring for covering the fifth flanging structure is installed on the lens bracket.
  • the Abbe numbers of the first lens, the third lens and the fourth lens are all greater than the Abbe numbers of the second lens.
  • it further includes a heat sink, and the third mounting bracket, the circuit board and the heat sink are fixedly connected in sequence.
  • the third mounting bracket is provided with a first positioning pin and a first screw through hole
  • the radiator is provided with a second positioning pin and a screw column
  • the circuit board is provided with the first positioning pin and the first screw hole.
  • the present invention also discloses a vehicle lighting device, comprising the pixel lighting module according to any one of the above technical solutions.
  • the present invention discloses a vehicle, including the vehicle lighting device described in the above technical solution.
  • the lens group is arranged in the lens bracket, and the lenses in the lens group are closely arranged, which effectively reduces the length of the imaging lens module, and the diameter of the imaging lens module is also small, thereby reducing the overall volume of the pixel lighting module.
  • the first lens is a lens with positive refractive power
  • the second lens is a lens with negative refractive power
  • the third lens is a lens with positive refractive power.
  • FIG. 1 is a three-dimensional schematic diagram of a pixel lighting module in a first embodiment of the present invention
  • FIG. 2 is an exploded view of the pixel lighting module in the first embodiment of the present invention
  • FIG. 3 is a top view of the pixel lighting module in the first embodiment of the present invention.
  • Fig. 4 is the sectional view of the A-A direction of Fig. 3;
  • FIG. 5 is a schematic diagram of the installation structure of the imaging lens module in the pixel lighting module according to the first embodiment of the present invention
  • Fig. 6 is the partial enlarged schematic diagram of B area among Fig. 5;
  • Fig. 7 is the partial enlarged schematic diagram of C area in Fig. 5;
  • Fig. 8 is the partial enlarged schematic diagram of D area in Fig. 5;
  • FIG. 9 is a schematic diagram of a light path simulation of the pixel lighting module in the first embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the imaging effect of the pixel image formed by the partial lighting of the matrix LED light source in the pixel lighting module according to the first embodiment of the present invention
  • FIG. 11 is a schematic diagram of the imaging effect of a pixel image formed by all lighting of the matrix LED light sources in the pixel lighting module according to the first embodiment of the present invention
  • FIG. 12 is a schematic three-dimensional structure diagram of a pixel lighting module in the second embodiment of the present invention.
  • FIG. 13 is an exploded view of the pixel lighting module in the second embodiment of the present invention.
  • Fig. 15 is the sectional view of the direction E-E in Fig. 14;
  • FIG. 16 is the second schematic structural diagram of the pixel lighting module in the second embodiment of the present invention.
  • Figure 17 is a cross-sectional view in the direction F-F in Figure 16;
  • FIG. 18 is a schematic three-dimensional structure diagram of a pixel lighting module in a third embodiment of the present invention.
  • 19 is an exploded view of the pixel lighting module in the third embodiment of the present invention.
  • FIG. 20 is a schematic structural diagram of a pixel lighting module in a third embodiment of the present invention.
  • Figure 21 is a sectional view in the direction G-G in Figure 20;
  • FIG. 22 is a schematic structural diagram of a pixel lighting module in a fourth embodiment of the present invention.
  • Figure 23 is a cross-sectional view of Figure 22;
  • Figure 24 is the exploded view of Figure 22;
  • 25 is a schematic diagram of the assembly structure of the lens bracket and the installation bracket with the lens group installed in the fourth embodiment of the present invention.
  • Figure 26 is an exploded view of Figure 25;
  • FIG. 27 is an exploded view of the assembly of the lens group and the lens holder in the fourth embodiment of the present invention.
  • 1-pixel illumination light source 2-lens holder; 21-first chamber; 210-first opening structure; 211-step structure of first chamber; 22-second chamber; 221-step structure of second chamber; 23-third chamber; 212-first step structure; 222-second step structure; 232-third step structure; 24-limiting part; 31-first lens; 311-first lens flanging structure; 32 - The second lens; 321 - the second lens flanging structure; 33 - the third lens; 331 - the third lens flanging structure; 34 - the fourth lens; 312 - the first flanging structure; 322 - the second flanging structure 332-third flanging structure; 333-fourth flanging structure; 334-fifth flanging structure; 35-first light blocking piece; 36-second light blocking piece; 41-first mounting bracket; 410- 2nd opening structure; 411-positioning pin hole; 412-positioning pin; 42-first beam limiting element; 43-first limiting ring; 51
  • connection should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication between two elements or the interaction relationship between the two elements.
  • installation may be a fixed connection or a detachable connection Connection, or integral connection; may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication between two elements or the interaction relationship between the two elements.
  • dispersion refers to the property that the refractive index of a material changes with the frequency of incident light.
  • white light consists of seven monochromatic lights of red, orange, yellow, green, blue, indigo, and violet.
  • the above-mentioned seven kinds of monochromatic light have different refractive indices, so the white light will be dispersed into the above-mentioned seven colors after refraction.
  • the long wave is dispersed outward, while the short wave of the concave lens is dispersed outward, and the long wave is dispersed inward, so the combination of the concave lens and the convex lens can cancel and correct the dispersion;
  • Monochromatic light has different refractive indices, causing dispersion, and different monochromatic lights have different propagation paths, thus showing aberrations caused by differences in the optical paths of different monochromatic lights.
  • front and rear refer to the front and rear directions of the pixel lighting module along the light output direction, which are generally approximately the same as the front and rear directions of the vehicle.
  • the third lens 33 is located in the front, Relatively, the first lens 31 is located at the rear, and the terminology is based on the orientation or positional relationship shown in the drawings, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be
  • the pixel lighting module when the pixel lighting module is installed in the vehicle, it can be installed in various orientations such as the horizontal direction and the vertical direction, and the orientation terms of the pixel lighting module of the present invention should be combined with the actual installation state. understand.
  • the pixel illumination module includes a pixel illumination light source 1 and an imaging lens module.
  • the imaging lens module includes a lens holder 2 and a lens group placed in the lens holder.
  • the lens group includes at least two Lens
  • pixel illumination light source 1 includes a plurality of independently controllable LED units to form a desired pixel image, and the pixel image is projected through the lens group.
  • the lens group is arranged in the lens holder 2, and each lens in the lens group is closely arranged, which effectively reduces the length of the imaging lens module, and the diameter of the imaging lens module is also small, thereby reducing the overall volume of the pixel lighting module.
  • the pixel illumination light source 1 in the present invention may preferably be a Micro LED light source, that is, a miniature LED light source.
  • the size of each LED unit in the miniature LED light source is in the order of microns, and the miniature LED light source is further preferably composed of tens of thousands of microns.
  • the LED light source is a rectangular array type LED light source whose length direction extends laterally.
  • the selection of the miniature LED light source can make the pixel points of the pixel illumination light source 1 smaller and denser, so that the formed pixel image has a higher definition, and then the light shape formed after the pixel image is projected can be realized.
  • control the matrix LED light source The LED units in a certain area on 11 are lit in the form of every other LED unit to form a local low-brightness light shape as shown in Figure 10, which not only facilitates the driver to avoid pedestrians and drive in the opposite direction The observation of the vehicle will not cause dazzling or blindness to pedestrians or drivers due to the high brightness of the lights.
  • the pixel illumination light source 1 can be arranged as a rectangular array extending laterally along the length direction, which can obtain a wider light shape to illuminate the areas on both sides of the road, which is beneficial for the driver to avoid pedestrians and road signs on both sides of the road. Observed. Combining the above advantages, the pixel lighting module of the present invention can greatly improve the safety of driving at night.
  • the pixel illumination light source 1 is installed on the circuit board 62, the circuit board 62 is installed on the radiator 9, and each LED unit in the pixel illumination light source 1 can be independently switched by the control of the circuit board 62 to form the required pixel image, the pixel image is projected via the lens group 22 .
  • the lens group includes a first lens 31, a second lens 32 and a third lens 33 arranged in sequence from the object side to the image side, the first lens 31 is a lens with positive refractive power, and the second lens 32 is a lens with a positive refractive power. A lens with negative refractive power, and the third lens 33 is a lens with positive refractive power.
  • the refractive power of the lens represents the ability of the lens to process light
  • the positive refractive power represents the lens can make the incoming light converge
  • the negative refractive power represents the lens can make the incoming light divergent.
  • the first lens 31 is set as a lens with positive refractive power, which can make the first lens 3 have a higher refractive power, so that the focal length of the first lens 3 is shorter, which can effectively reduce the number of pixels between the first lens 3 and the pixels.
  • the distance between the illumination light sources 1; the second lens 32 is set as a lens with negative refractive power, which can cancel and correct the dispersion phenomenon generated by the refraction of the light by the first lens 31, and make the second lens 32
  • the refractive power is higher and the focal length is shorter, which can effectively reduce the distance between it and the first lens 31 and the third lens 33
  • the third lens 33 is set as a lens with positive refractive power, which can make the third lens 33
  • the refractive power of the lens is higher, so that the focal length of the third lens 33 is shorter, which can effectively reduce the distance between the third lens 33 and the second lens 32; such two lenses with positive refractive power are arranged in one with a
  • the combination of lenses with negative refractive power can effectively offset the dispersion in the process of light refraction, so that the dispersion range formed by the pixel image after being projected by the lens group is small, and the colored light generated by dispersion due to the large dispersion range is avoided. Or the driver causes dazzling or
  • the lens group includes a first lens 31 , a second lens 32 and a third lens 33 arranged in sequence from the object side to the image side.
  • the first lens 31 The second lens 32 is a concave lens whose light entrance surface and light exit surface are both concave curved surfaces, and the third lens 33 is a light entrance surface and a light exit surface.
  • a convex lens with a convex surface Setting the first lens 31 as a convex lens whose light incident surface and light exit surface are both convex curved surfaces can make the diopter of the first lens 31 higher, so that the focal length of the first lens 31 is shorter, and the first lens 31 can be effectively reduced.
  • the distance between the lens 31 and the pixel illumination light source 1; the second lens 32 is set as a concave lens whose light incident surface and light exit surface are both concave curved surfaces.
  • the structural design makes the second lens 32 have a higher refractive power and a shorter focal length, which can effectively reduce the difference between the first lens 31 and the second lens 32.
  • the distance between the three lenses 33; the third lens 33 is set as a convex lens whose light incident surface and light exit surface are convex curved surfaces, so that the refractive power of the third lens 33 is higher, so that the focal length of the third lens 33 is shorter. , can effectively reduce the distance between the third lens 33 and the second lens 32; in addition, as shown in FIG.
  • the light emitted by the pixel illumination light source 1 passes through the first lens 31, the second lens 32 and the third The lens 33 projects forward to form the desired light shape.
  • the distance between the lenses in the lens group is small, which reduces the length dimension of the lens group, thereby reducing the length dimension of the lens holder 2, so that the pixel lighting module of the present invention is small in size and low in manufacturing cost , and the collocation of the lenses in the lens group can effectively offset the dispersion in the process of light refraction, so that the dispersion range formed by the pixel image after being projected by the lens group is small, so that the formed light shape is between the dark part and the bright part.
  • the boundary line is more clear, thus avoiding the dazzling or blinding of pedestrians or drivers caused by the colored light generated by the dispersion due to the large dispersion range.
  • the first lens 31 is provided with a first lens flanging structure 311
  • the second lens 32 is provided with a second lens flanging structure 321
  • the third lens 33 is provided with a third lens flanging structure 331
  • the first lens 31 , the second lens 32 and the third lens 33 are fixedly connected to the lens holder 2 through their corresponding flanging structures.
  • the first lens 31 , the second lens 32 and the third lens 33 are all fixedly connected to the lens holder 2 via their corresponding flanging structures.
  • the design of the flanging structure can realize the connection between each lens and the lens holder 2 , on the other hand, it can ensure that the part used for light passing is not blocked by the connecting structure on the lens holder 2 , thereby ensuring the light passing efficiency and improving the illumination brightness.
  • the first lens flanging structure 311 , the second lens flanging structure 321 and the third lens flanging structure 331 are all provided with light blocking layers.
  • the light blocking layer is preferably a black frosted layer. The design of the light-blocking layer can prevent the light from entering the flanging structure, so that no stray light will be generated, which ensures that the light shape formed by the pixel image after projection can be consistent with the pixel image, and will not produce extremely bright light spots with chaotic distribution.
  • the lens holder 2 is sequentially provided with a first chamber 21 , a second chamber 22 and a third chamber from the object side to the image side.
  • a first step structure 211 is formed at the connection between the first chamber 21 and the second chamber 22, and the diameter of one side of the first chamber 21 at the first step structure 211 is larger than that of the second chamber 22.
  • a second step structure 221 is formed at the junction of the second chamber 22 and the third chamber 23, and the diameter of one side of the third chamber 23 at the second step structure 221 is larger than that of the second chamber 221 diameter of the side.
  • the first chamber 21 , the second chamber 22 and the third chamber 23 can accommodate corresponding lenses, and the first stepped structure 211 and the second stepped structure 221 can facilitate the positioning and installation of the lenses.
  • the side of the first lens flanging structure 311 close to the light-emitting surface of the first lens 31 is connected to the first stepped structure 211 ;
  • the second lens flanging structure 321 is close to the second lens.
  • One side of the light incident surface of 32 is connected with the second step structure 221; with reference to FIG. 8 , the side of the second lens flanging structure 321 close to the light exit surface of the second lens 32 and the third lens flanging structure 331 close to the third lens
  • One surface of the light incident surface of the lens 33 is connected to each other.
  • the outer peripheral surface of the first lens flanging structure 311 is connected to the inner wall of the first chamber 21 ; the outer peripheral surface of the second lens flanging structure 321 and the first Part of the outer peripheral surface of the three-lens flanging structure 331 is connected with the inner wall of the third chamber 23 .
  • the lens holder 2 accommodates the lens group
  • the second lens 32 and the third lens 33 in the lens group are combined to form an integral structure, and are integrally accommodated in the third chamber 23 of the lens holder 2;
  • the second lens 32 and the third lens 33 are sequentially accommodated in the third chamber 23 . More specifically, as shown in FIG.
  • the side of the first lens flanging structure 311 that is close to the light-emitting surface of the first lens 31 is connected to the first stepped structure 211 .
  • At least part of the outer peripheral surface of a lens flanging structure 311 is also connected with the inner wall of the first chamber 21 to make the connection more firm.
  • the side of the second lens flanging structure 321 close to the light-emitting surface of the second lens 32 and the third lens flanging structure 331 close to the third lens One side of the light incident surface of the lens 33 is connected to make the second lens 32 and the third lens 33 form an integral structure, and then the side of the second lens flanging structure 321 close to the light incident surface of the second lens 32 is connected with the second lens 32 .
  • the stepped structure 221 is connected, and the outer peripheral surface of the second lens flanging structure 321 and the outer peripheral surface of the third lens flanging structure 331 also have a partial area connected with the inner wall of the third chamber 23, so that the connection is more firm.
  • the specific connection method may preferably be gluing.
  • the connection method is designed so that the first lens 31 is put into the first chamber 21 from the back, and the second lens 32 and the third lens 33 are put into the third chamber 23 from the front, so that the diameter of the third chamber 23 is the same size. It is not limited by the diameter of the first lens 31, so the diameter of the third chamber 23 can be reduced, thereby reducing the diameter of the lens holder 21, so that the pixel lighting module of the present invention is small in size and low in manufacturing cost.
  • the first chamber 21 is provided with an opening structure 210 .
  • the opening structure 210 can facilitate the placement of connectors (not shown in the figure) to realize the power supply to the circuit board 62 and the pixel illumination light source 1 , and on the other hand, can play the role of ventilation and heat dissipation, and can improve the heat dissipation power.
  • control software involved in the present invention adopts the prior art.
  • the present invention provides a pixel lighting module, including the lens holder 2 , a first mounting bracket 41 , and a first beam limiting element 42 and the first limit ring 43, the first lens 31, the second lens 32 and the third lens 33 are sequentially arranged in the lens holder 2 from the object side to the image side, and the first limit ring 43 is connected with the lens holder 2 to enable
  • the first lens 31 is abutted on the inner wall of the lens holder 2
  • the second lens 32 is connected with the inner wall of the lens holder 2
  • the first beam limiting element 42 is connected with the lens holder 2, so as to be able to abut the third lens 33 against the lens holder 2.
  • the pixel illumination light source 2 is arranged behind the first installation bracket 41, and the lens bracket 2 and the first installation bracket 41 can be connected in a relative movement, so as to be able to adjust the first lens 31, the second lens 32 and the third lens The distance between the lens group formed by 33 and the pixel illumination light source 2.
  • the first limiting ring 43 presses the first lens 31 on the inner wall of one end of the lens holder 2 from the rear, and the first beam limiting element 42 presses the third lens 33 on the other side of the lens holder 2 from the front.
  • the second lens 32 is located between the first lens 31 and the third lens 33, and is fixedly connected with the inner wall of the lens holder 2, and is closely arranged, which effectively reduces the overall volume and facilitates miniaturized design;
  • One end is connected to the first mounting bracket 41 by relative movement, and the light emitted from the pixel illumination light source 2 can be outputted through the first lens 31, the second lens 32 and the third lens 33 in sequence to form a pixelated light shape;
  • a mounting bracket 41 can be moved relative to each other in the axial direction, so that the distance between the lens group formed by the first lens 31, the second lens 32 and the third lens 33 and the pixel illumination light source 2 can be adjusted, so as to adjust the focal length and make The image is clearer.
  • the lens holder 2 can be threadedly connected with the first mounting bracket 41 to realize the relative axial movement of the two.
  • the first mounting bracket 41 is provided with a positioning pin hole 411. After the focusing is completed, A positioning pin 412 is inserted into the positioning pin hole 411 to limit the relative movement between the lens holder 2 and the first mounting bracket 41 to achieve a locking function.
  • the first lens 31, the second lens 32 and the third lens 33 are sequentially arranged from the object side to the image side, the circuit board 62 is mounted on the first mounting bracket 41, the pixel illumination light source 1 is mounted on the side of the circuit board 62, The other side of the circuit board 62 is connected to the radiator 9 to facilitate heat dissipation of the pixel lighting module.
  • a second opening structure 410 can be provided on the first mounting bracket 41 to facilitate placement of connectors, so as to realize the cooling of the circuit board 62 and the pixel lighting source.
  • the power supply of 1 can also play the role of ventilation and heat dissipation, and improve the heat dissipation power.
  • the first lens 31 is a biconvex lens with positive refractive power
  • the second lens 32 is a convex-concave lens with negative refractive power
  • the third lens 31 is a convex-concave lens with negative refractive power.
  • the lens 33 is a biconvex lens with positive refractive power; the refractive power of the lens represents the ability of the lens to process light, the positive refractive power represents that the lens can converge incoming light, and the negative refractive power represents that the lens can make the incoming light
  • the first lens 31 is set as a convex lens whose light incident surface and light exit surface are convex, which can make the diopter of the first lens 31 higher, so that the focal length of the first lens 31 is shorter, which can effectively reduce
  • the distance between the first lens 31 and the pixel illumination light source 1 is small;
  • the second lens 32 is set as a convex-concave lens with negative refractive power, the light-incident surface is concave and the light-emitting surface is convex.
  • the lens 33 is set as a convex lens with both the light incident surface and the light exit surface convex, which can make the third lens 33 have a higher diopter, so that the focal length of the third lens 33 is shorter, and can effectively reduce the third lens 33 and the second lens.
  • the distance between 32; this combination of two convex lenses is arranged with a concave lens, which can effectively offset the dispersion in the process of light refraction, so that the dispersion range formed by the pixel image after being projected by the lens group is small, avoiding the large dispersion range.
  • the colored light produced by dispersion causes dazzling or blinding of pedestrians or drivers.
  • the length dimension of the lens group is reduced, which facilitates the reduction of the overall size, thereby facilitating the overall miniaturization of the pixel lighting module
  • the first lens 31 is provided with a first flanging structure 312
  • the first flanging structure 312 can abut with the inner wall of the lens holder 2
  • the second lens 32 is provided with a second flanging structure 312 .
  • the edge structure 322, the second edge structure 322 is fixedly connected with the inner wall of the lens holder 2, the third lens 33 is provided with a third edge structure 332, and the third edge structure 332 is in contact with the inner wall of the lens support 2; the edge structure
  • the arrangement of the lens holder 2 is convenient for connection with the lens holder 2, and can ensure that the part used for light passage will not be blocked by the connection structure on the lens holder 2, thereby ensuring the efficiency of light passage and improving the illumination brightness.
  • a first stepped structure 212 , a second stepped structure 222 and a third stepped structure 232 are formed on the inner wall of the lens holder 2 , and the outer peripheral surface and the front surface of the first flanging structure 312 are formed with the first stepped structure 212 In contact with each other, the outer peripheral surface and the rear surface of the second flanging structure 322 are fixedly connected with the second stepped structure 222 , and the outer peripheral surface and the rear surface of the third flanging structure 332 are in contact with the third stepped structure 232 .
  • the outer peripheral surface of the first flanging structure 312 is in contact with the first stepped structure 212;
  • the two lenses 32 can be fixed in the lens holder 2 , and the connection is more firm, and the specific connection method may preferably be adhesive bonding;
  • the first step structure 212 cooperates with the first limiting ring 43 to effectively limit the movement of the first lens 31 , and the movement of the second lens 32 is restricted by gluing.
  • a beam limiting element 42 cooperates to effectively limit the movement of the third lens 33 .
  • the first flanging structure 312 , the second flanging structure 322 and the first flanging structure 332 may be provided Light-blocking layer, the light-blocking layer can be formed by matte black treatment to prevent stray light, or the light-blocking layer can also be coated with an anti-reflection coating to prevent stray light; the light shape formed after the pixel image is projected Consistent with pixel images without producing cluttered, extremely bright spots.
  • the first beam limiting element 42 can be detachably mounted on the lens holder 2, the first beam limiting element 42 is preferably a diaphragm, for example, the first beam limiting element 42 is threadedly connected to the lens holder 2,
  • the second lens 32 is first installed into the lens holder 2 from the front, the second flanging structure 322 of the second lens 32 is fixedly connected to the second stepped structure 222 by adhesive, and then the third lens 33 is loaded into the lens holder 2 from the front, and then the first beam limiting element 42 is screwed into the lens holder 2 to press the side of the third flanging structure 332 of the third lens 33 and the third step structure 232 in place; similarly,
  • the first limiting ring 43 is detachably mounted on the lens holder 2.
  • the first limiting ring 43 is screwed to the lens holder 2.
  • the first lens 31 is loaded into the lens holder 2 from the rear, and then Screw the first limit ring 43 into the lens holder 2 to press the side of the first flanging structure 312 of the first lens 31 and the first step structure 212 in place, so as to realize the alignment of the first lens 31 , the second lens 32 and the third lens Fixing of the lens 33;
  • the lens holder 2 with the first lens 31, the second lens 32 and the third lens 33 is threadedly connected to the first mounting bracket 41, and the lens holder 2 and the first mounting bracket 41 are adjusted to adjust
  • the distance between the lens group and the pixel illumination light source 1 makes the image clearer, and then insert the positioning pin 412 into the positioning pin hole 411 to lock the relative position between the lens bracket 2 and the first mounting bracket 41 .
  • a pixel lighting module includes a lens bracket 2 , a first mounting bracket 41 , a first beam limiting element 42 and a first limiting ring 43 , the lens bracket 2 and the first mounting bracket 41 ,
  • the first beam limiting element 42 and the first limiting ring 43 are respectively screwed together
  • the lens holder 2 is formed with a first step structure 212, a second step structure 222 and a third step structure 232
  • the edge structure 322 is fixedly connected with the second step structure 222 through adhesive
  • the third lens 33 is in contact with the third step structure 232, and after being screwed into the first beam limiting element 42 from the front, the first beam limiting element 42 can
  • the third flanging structure 332 of the third lens 33 is pressed in place with the third stepped structure 232 , the first lens 31 is abutted against the first stepped structure 212 , and the first limiting ring 43 is screwed into the first limiting ring 43 from the rear
  • the position ring 43 can press the first flanging structure 312 and the first stepped structure 212 of the first lens 31 in place; the rear end of the first mounting bracket 41 is connected to the circuit board 62, and a Micro LED light source is installed on one side of the circuit board 62, The other side is connected to the radiator 9, and the Micro LED light source is used to provide the pixel light source, so that the light passes through the first lens 31, the second lens 32 and the third lens 33 to form the required pixelated light shape;
  • the biconvex lens whose light surface and light exit surface are convex, has positive refractive power, the second lens 32 is a convex-concave lens whose light entrance surface is concave and the light exit surface is convex, and has negative refractive power, and the third lens 33 is The biconvex lens with both the light incident surface and the light exit surface convex has positive refractive power.
  • This combination method can effectively offset the dispersion in the process of light refraction, so that the pixel image projected by the lens group has a small dispersion range. It is ensured that the light shape formed by the projection of the pixel image can be consistent with the pixel image, and no extremely bright light spots with chaotic distribution will be generated.
  • the first lens 31 and the third lens 33 are pressed into the lens holder 2 by the first beam limiting element 42 and the first limiting ring 43, and the second lens 32 is fixed to the inner wall of the lens holder 2 by gluing.
  • This method is easy to assemble, and the first mounting bracket 41 can move axially relative to the lens bracket 2, and can adjust the distance between the lens group and the Micro LED light source, thereby adjusting the clarity of the light shape and making the image clearer; using the first beam
  • the limiting element 42 limits the front and rear of the third lens 33, and the first beam limiting element 42 can block the light that will form stray light, which is beneficial to eliminate stray light; the first lens 31 is a convex lens, and the second lens 32 is in the light incident surface.
  • the convex-concave lens with a concave and convex light-emitting surface has a negative refractive power, which can cancel and correct the dispersion phenomenon caused by the refraction of the light by the first lens 31.
  • the first lens 31, the second lens 32 and the third lens This lens combination method of the lens 33 can reduce the distance between the lenses, thereby reducing the length of the lens holder 2, making the overall volume smaller and the manufacturing cost low, and this lens combination method is conducive to balancing the optical system. Aberration, to ensure imaging clarity.
  • the present invention provides a pixel lighting module, including a lens holder 2 with a lens group arranged therein, a second beam limiting element 51.
  • the second limiting ring 52 and the third limiting ring 53, a limiting portion 24 is formed at one end of the lens holder 2, and the lens group includes the first lens 31, the second lens and the Two lenses 32 and third lenses 33 , the first lens 31 is arranged between the second limiting ring 52 and the limiting portion 21 , and the second lens 32 is arranged between the third limiting ring 53 and the second limiting ring 52 , the third lens 33 is arranged between the second beam limiting element 51 and the third limiting ring 53, and the second beam limiting element 51 is connected with the lens holder 2, so as to be able to limit and fix the first lens 31 to the second limit Between the ring 52 and the limiting portion 21, the second lens 32 is limited and fixed between the third limiting ring 53 and the second limiting
  • the first lens 31 , the second lens 32 and the third lens 33 are sequentially arranged in the lens holder 2 and pass through the second beam limiting element 51 , the second limiting ring 52 and the third limiting ring 53, the first lens 31 is limited and fixed between the second limit ring 52 and the limit part 24, the second lens 32 is limited and fixed between the third limit ring 53 and the second limit ring 52, the first The three lenses 33 are limited between the second beam limiting element 51 and the third limiting ring 53 , and each element is pressed in place by the second beam limiting element 51 .
  • the first lens 31 , the second The lens 32 and the third lens 33 can be closely arranged, which effectively reduces the overall volume and facilitates miniaturized design; moreover, in this design, the second beam limiting element 51 , the second limiting ring 52 and the third limiting ring 53 are used to pair the lens group.
  • the front and rear limiting it is not necessary to limit the front and rear of the lens group only through the lens bracket, which can reduce the requirement on the manufacturing precision of the lens bracket, and reduce the production cost to a certain extent.
  • the first lens 31 , the second lens 32 and the third lens 33 are arranged in sequence from the object side to the image side, that is, the pixel illumination light source 1 is arranged behind the end of the lens holder 2 where the first lens 31 is arranged, specifically , a second mounting bracket 54 can be formed at this end of the lens bracket 2, the circuit board 62 is mounted on the second mounting bracket 54, the pixel illumination light source 1 is mounted on the circuit board 62, and a radiator 9 is installed on the rear side of the circuit board 62, which is convenient for To dissipate heat from the pixel lighting module, a third opening structure 541 can be provided on the second mounting bracket 54, which can facilitate the placement of connectors, so as to realize the power supply to the circuit board 62 and the pixel lighting light source 1, and can also play the role of ventilation and heat dissipation. , improve the cooling power.
  • the first lens 31 is a meniscus lens with positive refractive power
  • the second lens 32 is a convex-concave lens with negative refractive power
  • the third lens 33 is a biconvex lens with positive refractive power; the refraction of the lens
  • the optical power represents the ability of the lens to process light
  • the positive refractive power represents that the lens can make the incoming light converge
  • the negative refractive power represents that the lens can make the incoming light diverge; specifically, the first lens 31 is set to incident light
  • the concave-convex lens with positive refractive power which is concave in the surface and convex in the light-emitting surface, can make the diopter of the first lens 31 higher, so that the focal length of the first lens 31 is shorter, which can effectively reduce the difference between the first lens 31 and the first lens 31.
  • the distance between the pixel illumination light sources 1; the second lens 32 is set as a convex-concave lens with negative refractive power, the periphery of the light incident surface is concave and the middle is convex, and the periphery of the light-emitting surface is convex and concave in the middle.
  • the dispersion phenomenon generated by the refraction of the lens 31 is cancelled and corrected, and the diopter of the second lens 32 is higher and the focal length is shorter, which can effectively reduce the distance between it and the first lens 31 and the third lens 33;
  • the third lens 33 is configured as a convex lens with both the light incident surface and the light exit surface convex, which can make the third lens 33 have a higher refractive power, so that the focal length of the third lens 33 is shorter, which can effectively reduce the difference between the third lens 33 and the third lens 33.
  • the distance between the two lenses 32; the combination of arranging a concave lens in the two convex lenses can effectively offset the dispersion in the process of light refraction, so that the dispersion range formed by the pixel image after being projected by the lens group is small, avoiding the dispersion caused by dispersion.
  • the large range makes the colored light produced by dispersion dazzling or blinding pedestrians or drivers.
  • the length dimension of the lens group is reduced, which facilitates the reduction of the size of the lens holder 2, thereby facilitating the overall miniaturization of the pixel lighting module of the present invention.
  • part or all of the outer peripheral surface of the first lens 31 , part or all of the outer peripheral surface of the second lens 32 , and the third Part or all of the outer peripheral surface of the lens 33 is in contact with the inner wall of the lens holder 2 respectively; further, a fourth flanging structure 333 is provided on the third lens 33, and the outer peripheral surface of the fourth flanging structure 333 is in contact with the lens holder 2.
  • the inner walls are in contact with each other, which can ensure that the light-passing part will not be blocked by the connection structure on the lens holder 2, thereby ensuring the light-passing efficiency and improving the illumination brightness.
  • the third limiting ring 53 abuts against each other, so that the third lens 33 can be limited and fixed between the second beam limiting element 51 and the third limiting ring 53 .
  • the second beam limiting element 51 can be detachably mounted on the lens holder 2, and the second beam limiting element 51 is preferably a diaphragm.
  • the second beam limiting element 51 is screwed to the lens holder 2, at During the installation process, the first lens 31 , the second limiting ring 52 , the second lens 32 , the third limiting ring 53 and the third lens 33 are sequentially installed into the lens holder 2 , and then the second beam limiting element 51 is rotated. into the lens holder 2 to press the components into place.
  • light blocking can be provided on the outer peripheral surface of the first lens 31 , the outer peripheral surface of the second lens 32 and the fourth flanging structure 333
  • the light-blocking layer can be formed by matte black treatment to prevent stray light, or the light-blocking layer can also be coated with an anti-reflection coating to prevent stray light; so that the light shape formed after the pixel image is projected can match the Pixel images are consistent and do not produce cluttered, extremely bright spots.
  • both the inner surface of the second limiting ring 52 and the inner surface of the third limiting ring 53 can be set as tapered surfaces whose diameters gradually increase from the object side to the image side, which can conform to the exit of light. direction, ensure the efficiency of light transmission, and improve the brightness of lighting.
  • the pixel lighting module includes a lens holder 2 , a second beam limiting element 51 , a second limiting ring 52 , a third limiting ring 53 , a first lens 31 , The second lens 32 and the third lens 33, the lens holder 2 is provided with a limiting portion 24 at the end, and the outer peripheral surface of the end of the lens holder 2 is also provided with a second mounting bracket 54.
  • the second mounting bracket 54 is used for
  • the circuit board 62 is installed. One side of the circuit board 62 is installed with a Micro LED light source, and the other side is connected to the heat sink 9.
  • the Micro LED light source is used to provide a pixel light source, so that the light passes through the first lens 31, the second lens 32 and the third lens 33 to form The required pixelated light shape; the limiting portion 24 is formed into a stepped structure, the second limiting ring 52 and the limiting portion 24 can limit the position of the first lens 31 , the third limiting ring 53 and the second limiting ring 52
  • the second lens 32 can be limited, the second beam limiting element 51 and the third limiting ring 53 can limit the third lens 33, and the second beam limiting element 51 and the lens holder 2 are screwed together, It is preferably a diaphragm.
  • the first lens 31 , the second limiting ring 52 , the second lens 32 , the third limiting ring 53 and the third lens 33 are sequentially loaded into the lens holder 2 , and then the diaphragm is Screw into the lens holder 2 to press the components in place; the outer peripheral surface of the first lens 31 , the outer peripheral surface of the second lens 32 and the outer peripheral surface of the fourth flanging structure 333 of the third lens 33 are in contact with the inner wall of the lens holder 2 It can be that the part of the outer peripheral surface of each element is in contact with the inner wall of the lens holder 2, or the entire outer peripheral surface of each element is in contact with the inner wall of the lens holder 2; the first lens 31 is a concave and The concave-convex lens whose light-emitting surface is outwardly convex has a positive refractive power, which is equivalent to a convex lens.
  • the second lens 32 is a convex-concave lens with an inner concave middle and outer convex at the periphery of the light incident surface and a convex-concave lens at the periphery of the light-emitting surface, which has negative refraction light.
  • the power is equivalent to a concave lens.
  • the third lens 33 is a convex lens with both the light incident surface and the light exit surface convex. This combination method can effectively offset the dispersion in the process of light refraction, so that the pixel image is formed after being projected by the lens group.
  • the dispersion range is small, ensuring that the light shape formed by the pixel image after projection can be consistent with the pixel image, and will not produce extremely bright light spots with chaotic distribution.
  • the first lens 31 , the second lens 32 and the third lens 33 are compressed in the lens holder 2 through the second beam limiting element 51 , the second limiting ring 52 and the third limiting ring 53 .
  • This method is simple to assemble.
  • the second beam limiting element 51 and the third limiting ring 53 are used to limit the front and rear of the third lens 33, and the second beam limiting element 51 can block the light that will form stray light, It is beneficial to eliminate stray light; the lens combination of the two convex lenses of the first lens 31, the second lens 32 and the third lens 33 and a concave lens between them can reduce the distance between the lenses, thereby reducing the
  • the length dimension of the small lens holder 2 makes the overall volume smaller, the manufacturing cost is low, and it is beneficial to balance the aberration of the optical system and ensure the imaging clarity.
  • the first lens 31 is made of material one
  • the second lens 32 is made of material two
  • the third lens 33 is made of material three.
  • the Abbe number (dispersion coefficient) of material one is the same as that of material three.
  • the Abbe numbers of the two materials are all larger than the Abbe numbers of the second material. This combination can help eliminate chromatic aberration.
  • the Abbe number is used to measure the degree of light dispersion of a transparent medium. Generally speaking, the greater the refractive index of the medium, the greater the The more serious the dispersion, the smaller the Abbe number; on the contrary, the smaller the refractive index of the medium, the slighter the dispersion, the larger the Abbe number.
  • the first material can be glass, such as LAK glass (a new type of rare earth optical glass, which has the characteristics of high refractive index and low dispersion), K9 glass (glass products made of K9 material), and the second material can be PC (polycarbonate) ), and the third material can be PMMA (plexiglass) to better eliminate chromatic aberration.
  • LAK glass a new type of rare earth optical glass, which has the characteristics of high refractive index and low dispersion
  • K9 glass glass products made of K9 material
  • the second material can be PC (polycarbonate)
  • the third material can be PMMA (plexiglass) to better eliminate chromatic aberration.
  • an antireflection coating may be provided on the light incident surface and/or the light exit surface of at least one of the first lens 31 , the second lens 32 and the third lens 33 , which can improve the performance of the antireflection coating.
  • the transmittance of the light-incident or light-exiting surface improves the illumination brightness.
  • the present invention provides a pixel lighting module, including a pixel lighting light source 1, a lens group, a lens bracket 2, and a third mounting bracket 61 and circuit board 62, the lens group includes at least three lenses arranged in sequence along the light exit direction of the pixel illumination light source 1, the lens group is installed in the lens holder 2, and the lens holder 2 is installed in the On the third mounting bracket 61 , the pixel illumination light source 1 is mounted on the circuit board 62 , the third mounting bracket 61 is fixedly connected with the circuit board 62 , and the lens bracket 2 and the third mounting bracket 61 are connected to each other.
  • a focusing structure capable of adjusting the relative positions of the two along the arrangement direction of the lens group is arranged therebetween.
  • the relative position between the lens holder 2 and the third installation holder 61 along the arrangement direction of the lens group can be adjusted.
  • the light source 1 is installed on the circuit board 62, and the circuit board 62 is fixedly connected to the third mounting bracket 61, so that the focusing structure can adjust the distance between the lens group on the lens bracket 2 and the pixel illumination light source 1 to achieve Focusing function, so that in actual use, the distance between the lens group and the pixel illumination light source 1 can be adjusted as needed, so that the pixel illumination module can be imaged clearly by focusing, so as to meet the lighting requirements and the lighting effect is better.
  • the pixel illumination light source 1 is a matrix LED light source, preferably a Micro LED light source, that is, a miniature LED light source.
  • the miniature LED light source is composed of A rectangular array of LED light sources composed of tens of thousands of micron-level LED units. The selection of miniature LED light source can make the pixel points smaller and denser, which can make the pixel image formed with higher definition, and then can control the pixelated light shape formed after the pixel image is projected with higher precision.
  • the boundaries of the shadows and the changes of shadow positions are also more refined and smooth, which can better avoid dazzling or blinding pedestrians or drivers, and, in a rectangular array, can obtain a wider light shape to illuminate the sides of the road. It is helpful for the driver to observe pedestrians and road signs on both sides of the road.
  • the pixel lighting module of the present invention can be used for 10,000-level pixel lighting and has a higher resolution.
  • the third mounting bracket 61 includes a mounting seat 611 matched with the lens bracket 2 , and the focusing structure is provided between the lens bracket 2 and the mounting seat 611 . , so that the lens holder 2 can move on the mounting seat to adjust the relative positions of the lens holder 2 and the third mounting bracket 61 along the arrangement direction of the lens group.
  • the mounting seat 611 By arranging the mounting seat 611, the lens holder 2 can be supported, because the lens group is installed in the lens holder 2, that is, the entire lens group is supported, so that the movement of the lens holder 2 is more labor-saving and easy to operate.
  • limit plates are provided on both sides of the mounting seat 611, and the inner wall surface of the limit plate is matched with the outer side of the lens holder 2, so that the entire lens holder 2 can be limited between the two limit plates, so that the entire lens holder 2 can be positioned between the two limit plates, so that when moving When the lens holder 2 is used, the lens holder 2 can only move along the arrangement direction of the lens groups, so that the adjustment precision can be ensured.
  • the third mounting bracket 61 further includes a mounting plate 612 fixedly connected to the circuit board 62 , and the mounting seat 611 is provided on the mounting plate 612 away from the circuit On one side of the board 62 , the mounting board 612 is provided with a lens support hole 613 .
  • the lens holder through holes 613 are arranged on the mounting plate 612, so that the end of the lens holder 2 can pass through, so that the light emitted by the pixel illumination light source 1 can be incident on the lens group in the lens holder 2, so as to form illumination light through the lens group. shape.
  • the focusing structure includes mounting lugs 7 arranged on both sides of the lens bracket 2 , and each of the mounting lugs 7 is provided with a mounting lug 7 extending along the arrangement direction of the lens group.
  • the waist-shaped hole 71 is provided with a fastener, and the lens holder 2 is detachably fixed on the third mounting bracket 61 through the fastener.
  • two sides of the third mounting bracket 61 are provided with mounting posts 616 matched with the mounting lugs 7 .
  • the mounting posts 616 are arranged on both sides of the mounting seat 611
  • the mounting post 616 is provided with a mounting hole 617 matched with the fastener.
  • the fasteners may be fastening bolts 72
  • the mounting holes 617 are threaded holes matched with the fastening bolts 72
  • the fasteners may also be other fastening structures.
  • the above-mentioned focusing structure can also adopt other deformation structures.
  • sliding grooves are provided on both sides of the lens holder 2, and a waist-shaped hole communicated with the sliding groove is provided on the side wall of the sliding groove.
  • On the third mounting bracket 61 A slide rail matched with the chute is provided, and a mounting hole is provided on the slide rail, and the fastener can be fixed in the mounting hole through the waist-shaped hole, so as to realize the adjustment of the distance between the lens holder 2 and the third mounting holder 61 .
  • the lens group includes a fourth lens 34 , a first lens 31 , a second lens 32 and a third lens 33 arranged in sequence along the light exit direction of the pixel illumination light source 1 ,
  • the fourth lens 34 is a meniscus lens, which includes a concave light incident surface and an external convex light exit surface, and the convexity of the light exit surface is greater than the concavity of the light entrance surface, that is, the convexity and concavity with positive refractive power.
  • the fourth lens 34 is close to the pixel illumination light source 1, and by setting the concave light incident surface and the convex light exit surface, more light can be gathered to the first lens 31, thereby improving the utilization rate of light;
  • the first lens 31 is a biconvex lens, which can play the role of converging light;
  • the second lens 32 is a convex-concave lens, which includes a concave light incident surface and an external convex light exit surface, and the concave degree of the light incident surface is greater than that of the light incident surface.
  • the convexity of the light-emitting surface which is equivalent to a concave lens, can diversify the light, and is used to balance the aberration in the optical system, avoid the appearance of distorted virtual images, and affect the resolution of imaging;
  • the third lens 33 is a double lens.
  • the convex lens can play the role of converging the light to project the light to form the illumination light shape.
  • the arrangement of the fourth lens 34 , the first lens 31 , the second lens 32 and the third lens 33 helps to balance the aberrations of the optical system and ensure the imaging clarity.
  • the fourth lens 34 is preferably a material with a larger refractive index among materials with a large Abbe number, so as to converge and project more light rays to improve light efficiency, and the other three lenses are mainly used to balance aberrations.
  • Abbe number is an index used to express the dispersion ability of transparent medium. Generally speaking, the larger the refractive index of the medium, the more serious the dispersion, and the smaller the Abbe number; on the contrary, the smaller the refractive index of the medium, the milder the dispersion, and the larger the Abbe number.
  • the Abbe numbers of the fourth lens 34 , the first lens 31 and the third lens 33 are all larger than the Abbe numbers of the second lens 32 , and this combination can help eliminate chromatic aberration.
  • the fourth lens 34 and the first lens 31 are preferably made of glass material because they are relatively close to the pixel illumination light source 1, so that the heat resistance is good. Since the glass material is used, the fourth lens 34 and the first lens 31 are preferably spherical lenses. It is easy to process; the second lens 32 and the third lens 33 are far away from the pixel illumination light source 1, so plastic materials with lower cost, such as PC (polycarbonate) or PMMA (polymethyl methacrylate), may be preferred.
  • the second lens 32 and the third lens 33 may be aspherical lenses to facilitate light distribution.
  • the inner wall surface of the lens holder 2 is provided with a stepped structure that is matched with each of the lenses in a one-to-one correspondence, and the stepped structure includes a stepped surface and the stepped side surface, the outer peripheral surface of each lens is in contact with the corresponding stepped side surface of the stepped structure, the circumferential position of each lens can be limited by each stepped side surface, and the The side where the light incident surface of the lens is located is limited, and the outer peripheral surface of each lens is glued on the corresponding stepped side by dispensing or adhesive, and the light incident surface of each lens is The periphery is glued on the corresponding step surface, so that each of the lenses is fixed in the lens holder 2 .
  • a light blocking sheet can be provided on the side where the light exit surface of the lens is located to eliminate stray light.
  • a first light blocking sheet 35 is provided around the light exit surface of the fourth lens 34.
  • a second light blocking sheet 36 is provided around the light-emitting surface of the two lenses 32 , and both the first light blocking sheet 35 and the second light blocking sheet 36 are glued on the lens holder 2 by dispensing or adhesive.
  • the light blocking sheet is a black opaque sheet, such as a black matte metal sheet, so as to block the light that can form stray light.
  • the third lens 33 is provided with a fifth flanging structure 334 matched with its corresponding stepped structure.
  • the fifth flanging structure 334 By arranging the fifth flanging structure 334, on the one hand, the installation of the third lens 33 is facilitated, and on the other hand, the third lens 33 can be installed. The part of the three lenses 33 used for light passing will not be blocked by the connection structure on the lens holder 2 , thereby ensuring the efficiency of light passing and improving the illumination brightness, wherein the fifth flanging structure 334 can be arranged on the upper end of the third lens 33 , the fifth flanging structure 334 may also be arranged at the lower end thereof, or at both the upper and lower ends thereof.
  • the lens stopper 8 is mounted on the lens holder 2, and the lens stopper 8 is mounted on the outer peripheral side of the third lens 33, so that the fifth flange structure 334 of the third lens 33 can be covered, thereby improving the appearance Aesthetics.
  • the lens retaining ring 8 can be screwed or glued on the lens holder 2 .
  • One end is placed on the corresponding step structure, and is glued with the lens holder 2 respectively.
  • the lens stop ring 8 is installed on the lens holder 2 and glued with the lens holder 2 to cover the fifth flanging structure of the third lens 33. 334, thereby completing the installation of the lens group.
  • the pixel lighting module further includes a heat sink 9
  • the third mounting bracket 61 is provided with a first positioning pin 614 and a first screw through hole 615
  • the heat sink 9 is provided with a second positioning pin 91 and a screw column 92
  • the circuit board 62 is provided with a second screw via hole 621 matched with the first screw via hole 615 and the screw column 92 , and a first positioning hole 622 matched with the first positioning pin 614 and a second positioning hole 623 matched with the second positioning pin 91 .
  • the third mounting bracket 61 and the circuit board 62 During installation, firstly position the third mounting bracket 61 and the circuit board 62 through the first positioning pin 614 and the first positioning hole 622, and position the heat sink 9 and the circuit board 62 through the second positioning pin 312 and the second positioning hole 623 for positioning, and then through the third mounting bracket 61 and the screw holes on the circuit board 62 to be fixedly connected to the screw posts 92 on the radiator 9 through screws in turn, so as to connect the third mounting bracket 61, the circuit board 62 and the radiator. 9 fixedly connected together.
  • the third mounting bracket 61 , the circuit board 62 and the heat sink 9 can also be fixedly connected together by other fastening structures.
  • the pixel lighting module of the present invention can be applied to a vehicle lighting device, such as a vehicle lamp, which is convenient for the miniaturized design of the vehicle lighting device, and also facilitates the installation on the vehicle, so that the vehicle has a light shape with imaging clarity.
  • vehicle lighting device such as a vehicle lamp
  • the headlight control system controls the on/off of each area of the light source, transmits vehicle information to pedestrians, vehicles, etc. in the external driving environment or realizes interactive functions to ensure traffic safety.

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

Abstract

Module d'éclairage de pixel, dispositif d'éclairage de véhicule et véhicule. Le module d'éclairage de pixel comprend une source de lumière d'éclairage de pixel (1) et un module de lentille d'imagerie ; le module de lentille d'imagerie comprend un support de lentille (2) et un groupe de lentilles placé dans le support de lentille (2), le groupe de lentilles comprenant au moins trois lentilles (31, 32, 33) ; la source de lumière d'éclairage de pixel (1) comprend de multiples unités de DEL pouvant être commandées indépendamment de façon à former une image de pixel souhaitée, l'image de pixel étant projetée par l'intermédiaire du groupe de lentilles. La taille globale du module d'éclairage de pixel est petite, la structure est simplifiée, et la présente invention facilite la miniaturisation et facilite l'application d'une technologie d'éclairage de pixel dans de petits véhicules.
PCT/CN2021/132410 2020-11-27 2021-11-23 Module d'éclairage de pixel, dispositif d'éclairage de véhicule, et véhicule WO2022111467A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN202022811426.9 2020-11-27
CN202022811397.6 2020-11-27
CN202022811397.6U CN214064802U (zh) 2020-11-27 2020-11-27 像素照明模块、车辆照明装置及车辆
CN202022811887.6 2020-11-27
CN202022811887.6U CN214009109U (zh) 2020-11-27 2020-11-27 像素照明模块、车辆照明装置及车辆
CN202022811426.9U CN214064803U (zh) 2020-11-27 2020-11-27 一种像素照明模块、车辆照明装置及车辆
CN202121356160.1 2021-06-17
CN202121356160.1U CN215675044U (zh) 2021-06-17 2021-06-17 一种像素照明装置、车灯及车辆

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115046170A (zh) * 2022-07-06 2022-09-13 中国第一汽车股份有限公司 一种adb模组及车辆

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3379142A1 (fr) * 2017-03-20 2018-09-26 Automotive Lighting Reutlingen GmbH Module d'éclairage pour un phare de véhicule automobile et phare de véhicule automobile pourvu d'un tel module
EP3396241A1 (fr) * 2017-04-28 2018-10-31 Valeo Vision Module lumineux avec optique d'imagerie optimisée pour un modulateur spatial pixellisé, destiné à un véhicule automobile
CN208107962U (zh) * 2018-04-25 2018-11-16 华域视觉科技(上海)有限公司 一种车辆用矩阵式照明装置
CN209944222U (zh) * 2019-06-03 2020-01-14 曼德电子电器有限公司 像素照明装置和投影成像模块
CN111219679A (zh) * 2020-02-13 2020-06-02 江苏大学 一种用于汽车照明的矩阵式led像素灯光学系统
CN214009109U (zh) * 2020-11-27 2021-08-20 华域视觉科技(上海)有限公司 像素照明模块、车辆照明装置及车辆
CN214064803U (zh) * 2020-11-27 2021-08-27 华域视觉科技(上海)有限公司 一种像素照明模块、车辆照明装置及车辆
CN214064802U (zh) * 2020-11-27 2021-08-27 华域视觉科技(上海)有限公司 像素照明模块、车辆照明装置及车辆

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3379142A1 (fr) * 2017-03-20 2018-09-26 Automotive Lighting Reutlingen GmbH Module d'éclairage pour un phare de véhicule automobile et phare de véhicule automobile pourvu d'un tel module
EP3396241A1 (fr) * 2017-04-28 2018-10-31 Valeo Vision Module lumineux avec optique d'imagerie optimisée pour un modulateur spatial pixellisé, destiné à un véhicule automobile
CN208107962U (zh) * 2018-04-25 2018-11-16 华域视觉科技(上海)有限公司 一种车辆用矩阵式照明装置
CN209944222U (zh) * 2019-06-03 2020-01-14 曼德电子电器有限公司 像素照明装置和投影成像模块
CN111219679A (zh) * 2020-02-13 2020-06-02 江苏大学 一种用于汽车照明的矩阵式led像素灯光学系统
CN214009109U (zh) * 2020-11-27 2021-08-20 华域视觉科技(上海)有限公司 像素照明模块、车辆照明装置及车辆
CN214064803U (zh) * 2020-11-27 2021-08-27 华域视觉科技(上海)有限公司 一种像素照明模块、车辆照明装置及车辆
CN214064802U (zh) * 2020-11-27 2021-08-27 华域视觉科技(上海)有限公司 像素照明模块、车辆照明装置及车辆

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115046170A (zh) * 2022-07-06 2022-09-13 中国第一汽车股份有限公司 一种adb模组及车辆
CN115046170B (zh) * 2022-07-06 2024-03-15 中国第一汽车股份有限公司 一种adb模组及车辆

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