WO2022193174A1

WO2022193174A1 - Pixelated lighting device for vehicle, vehicle lamp, and vehicle

Info

Publication number: WO2022193174A1
Application number: PCT/CN2021/081313
Authority: WO
Inventors: 仇智平; 严海月; 张大攀; 祝贺; 桑文慧
Original assignee: 华域视觉科技(上海)有限公司
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-09-22
Also published as: CN116635668A

Abstract

A pixelated lighting device for a vehicle, comprising a pixelated light source (5) and a lens group (1). The pixelated light source (5) comprises a plurality of light-emitting units (51) arranged in a matrix; light-emitting surfaces (511) of the plurality of light-emitting units (51) form an integral light-emitting surface; a shading member having a plurality of light passing micropores (61) is provided between the pixelated light source (5) and the lens group (1), so that light emitted from the boundary portion of the upper region of the integral light-emitting surface can be transmitted through the light passing micropores (61); the boundary portion of the upper region of the integral light-emitting surface at least comprises an upper boundary portion thereof. According to the solution, the pixelated light pattern and the non-pixelated light pattern at the superposition boundary (C) are uniform in transition, and well connected.

Description

A vehicle pixelated lighting device, a vehicle lamp and a vehicle

technical field

The present invention relates to lighting devices, in particular, to a pixelated lighting device for vehicles. In addition, the present invention also relates to a vehicle lamp and a vehicle.

Background technique

In recent years, with the development of the automotive lighting industry, single road lighting has been difficult to meet the needs of traffic participants for safe and comfortable lighting, and the application of pixelated lighting devices that can simultaneously realize matrix lighting and pixel display in the field of vehicle lighting technology more and more. In actual use, the pixelated light shape is usually superimposed with the non-pixelated light shape, and the two will generate a certain superimposed area and superimposed boundary. Figures 1 and 2 are the light pattern diagrams of the pixelated light shape and the non-pixelated light shape formed by the pixelated lighting device after being superimposed. Schematic diagram of the light shape in the low beam illumination mode, in Figure 1 and Figure 2 a is the pixelated light shape, b is the non-pixelated light shape (the auxiliary low beam light shape used for low beam broadening illumination), and c is the pixelated light shape The superimposed boundary of shape a and non-pixelated light shape b, d is the low-beam cut-off line.

3 and 4 are a schematic diagram of a pixelated light pattern formed by a pixelated lighting device in the prior art and a road surface simulated light pattern of a vehicle lamp provided with the conventional pixelated lighting device. In the figure, a1 is the existing pixelated light shape, and c1 is the existing overlapping boundary, that is, the lower boundary area of the existing pixelated light shape a1. It can be seen from Fig. 3 and Fig. 4 that the pixelated light shape a1 formed by the pixelated lighting device of the prior art has too sharp boundaries, so that after it is superimposed with the non-pixelated light shape, the transition at the boundary is uneven and the cohesion is poor. .

SUMMARY OF THE INVENTION

The technical problem to be solved in the first aspect of the present invention is to provide a pixelated lighting device for a vehicle, which can make the transition of the pixelated light shape and the non-pixel light shape at the superimposed boundary uniform and better connected.

The technical problem to be solved by the second aspect of the present invention is to provide a vehicle lamp, which can make the transition of the pixelated light shape and the non-pixel light shape at the superimposed boundary uniform and better.

The technical problem to be solved by the third aspect of the present invention is to provide a vehicle, which can make the pixelated light shape and the non-pixel light shape formed by the vehicle lamp transition evenly and better connect at the superimposed boundary.

In order to solve the above technical problems, a first aspect of the present invention provides a pixelated lighting device for vehicles, comprising a pixel lighting light source and a lens group, wherein the lens group includes at least two light sources arranged in sequence along the light exit direction of the pixel lighting light source. a lens, the pixel illumination light source includes a plurality of light-emitting units arranged in a matrix, the light-emitting surfaces of the plurality of light-emitting units constitute an overall light-emitting surface, and a plurality of channels are arranged between the pixel illumination light source and the lens group. A shielding piece for light apertures, so that the light emitted by the boundary portion of the upper region of the integral light-emitting surface can be emitted through the light-transmitting microholes on the shielding piece, wherein the boundary portion of the upper region of the integral light-emitting surface can be emitted including at least its upper boundary portion.

Preferably, the distance L between the light-emitting surface of the light-emitting unit and the shutter is less than or equal to 5 mm.

Preferably, the light-transmitting micro-holes are circular holes, and the diameter of the circular holes is less than or equal to 1 mm.

Preferably, the shielding member is a microporous plate, and the thickness of the microporous plate is less than or equal to 1 mm.

Preferably, a surface of the shielding member close to the lens group is provided with an aluminum coating layer.

Preferably, the shielding member is arranged in an undercut shape so that it can cover the upper boundary portion of the upper region of the integral light-emitting surface, the left boundary portion of the upper region and the right boundary portion of the upper region.

Preferably, the lens group includes a first lens, a second lens and a third lens arranged in sequence along the light exit direction of the pixel illumination light source, the first lens is a meniscus lens, and the second lens is a A convex-concave lens, and the third lens is a biconvex lens.

Preferably, the first lens includes an inwardly concave light incident surface and an outwardly convex light exit surface, and the second lens includes a peripheral concave light incident surface and a middle convex light entrance surface and a peripheral convex light exit surface with an inner concave middle .

Preferably, the Abbe numbers of the first lens and the third lens are both greater than the Abbe numbers of the second lens.

Preferably, the vehicle pixelated lighting device further comprises a lens holder, a circuit board and a heat sink, the first lens, the second lens and the third lens are all installed in the lens holder, the pixel illumination light source and all the The shutters are all mounted on the circuit board, and the lens bracket, the circuit board and the heat sink are fixedly connected in sequence.

Preferably, the outer peripheral surfaces of the first lens, the second lens and the third lens all abut on the inner wall surface of the lens holder, one end of the lens holder is provided with a limiting portion, and the other end is provided with a beam limiting member, A first limit ring and a second limit ring are arranged inside the lens holder, the first lens is arranged between the limit part and the first limit ring, and the second lens is arranged at the between the first limiting ring and the second limiting ring, and the third lens is arranged between the second limiting ring and the beam limiting member, so as to connect the first lens, the second The lens and the third lens are limited and fixed in the lens holder.

Preferably, the light beam limiting member is a diaphragm, and the diaphragm is detachably and fixedly connected to the lens holder.

A second aspect of the present invention provides a vehicle lamp, including the above-mentioned vehicle pixelated lighting device.

A third aspect of the present invention provides a vehicle including the above-mentioned vehicle lamp.

In the present invention, by arranging a shield with a plurality of light-transmitting micro-holes between the pixel illumination light source and the lens group, part of the light emitted by the boundary portion of the upper region of the overall light-emitting surface composed of the light-emitting surfaces of the plurality of light-emitting units is passed through. The area other than the micro-holes is blocked, and another part of the light can be emitted through the light-transmitting micro-holes on the shield, and the light emitted through the light-transmitting micro-holes will be diffracted, so that the lower boundary area of the formed pixelated light shape becomes Soft, so that when the pixelated light shape and the non-pixelated light shape are superimposed, the transition can be even and better connected at the superimposed boundary.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

1 is a schematic diagram of the light shape of a vehicle lamp provided with an existing pixelated lighting device in a high-beam lighting mode;

FIG. 2 is a schematic diagram of the light shape of a vehicle lamp provided with an existing pixelated lighting device in a low beam lighting mode;

3 is a schematic diagram of a pixelated light shape formed by an existing pixelated lighting device;

4 is a schematic diagram of a road surface simulated light shape of a vehicle lamp provided with a conventional pixelated lighting device;

5 is a schematic structural diagram of an embodiment of the present invention;

6 is a schematic exploded view of an embodiment of the present invention;

Fig. 7 is a schematic view of enlarged structure at A place in Fig. 6;

8 is a schematic structural diagram of a pixel illumination light source in an embodiment of the present invention;

9 is a schematic diagram of an installation structure of a pixel illumination light source and a shield in an embodiment of the present invention;

10 is a schematic diagram of the installation structure of the lens group in the lens holder in an embodiment of the present invention;

11 is a schematic diagram of the installation structure of a pixel illumination light source and a lens group in an embodiment of the present invention;

Figure 12 is a top view of Figure 11;

Fig. 13 is the B-B sectional view of Fig. 12;

Figure 14 is a schematic view of the enlarged structure at C in Figure 13;

15 is a schematic diagram of a pixelated light shape formed by the pixelated lighting device for a vehicle of the present invention;

FIG. 16 is a schematic diagram of the simulated light shape of the road surface of the vehicle lamp of the vehicle pixelated lighting device of the present invention.

Description of reference numerals

1 lens group 11 first lens

12 The second lens 13 The third lens

2 lens holder 21 first limit ring

22 The second limit ring 23 Aperture

24 limit parts 3 circuit boards

4 radiator 41 cooling fan

42 screws 5 pixel lighting source

51 light-emitting unit 511 light-emitting surface

6 microwell plates 61 clear microwells

aPixelated light shape a1Existing pixelated light shape

a2 pixelated light shape of the present invention b non-pixelated light shape

c Overlay Boundary c1 Existing Overlay Boundary

c2 superimposed boundary of the present invention d low beam cut-off line

Detailed ways

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is only for the convenience of describing the present invention. The invention and simplified description do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Among them, "up", "down", "left" and "right" are all based on the orientation or positional relationship shown in the corresponding drawings, "front" refers to the exit direction of light, and "rear" is opposite to "front" direction.

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

A first aspect of the present invention provides a vehicle pixelated lighting device. The vehicle pixelated lighting device according to the basic embodiment of the present invention includes a pixel lighting light source 5 and a lens group 1 , and the lens group 1 includes a pixel lighting source 5 along the pixel lighting source 5 . At least two lenses are arranged in sequence in the light exit direction, the pixel illumination light source 5 includes a plurality of light-emitting units 51 arranged in a matrix, and the light-emitting surfaces 511 of the plurality of light-emitting units 51 form an overall light-emitting surface, and the pixel lighting Between the light source 5 and the lens group 1, a shield with a number of light-transmitting micro-holes 61 is arranged, so that the light emitted by the boundary part of the upper region of the integral light-emitting surface can pass through the light-transmitting micro-holes on the shield. The hole 61 exits, wherein the boundary portion of the upper region of the integral light-emitting surface includes at least its upper boundary portion.

In the above-mentioned basic embodiment, the light emitted by the pixel illumination light source 5 can form a pixelated light shape after being emitted by the lens group 1, and the light emitted by the boundary part of the upper region of the overall light-emitting surface can be formed into a pixelated light shape after being emitted by the lens group 1. The lower bounding area of the light shape. By arranging a shield with a plurality of light-passing micro-holes 61 between the pixel illumination light source 5 and the lens group 1, the light emitted from the boundary portion of the upper region of the overall light-emitting surface can be emitted through the light-transmitting micro-holes 61 on the shield. It should be noted here that not all the light can be emitted through the light-transmitting micro-hole 61, and some of the light is blocked by the area other than the light-transmitting micro-hole 61, and the light emitted through the light-transmitting micro-hole 61 will be diffracted, thereby The lower boundary area of the formed pixelated light shape is softened, so that when the pixelated light shape and the non-pixelated light shape are superimposed, the transition at the superimposed boundary is uniform and better connected. The upper boundary portion of the upper region of the overall light-emitting surface, the left boundary portion of the upper region, and the right boundary portion of the upper region of the overall light-emitting surface belong to the boundary portion of the upper region of the overall light-emitting surface, and the lower boundary portion of the upper region does not belong to the upper portion of the overall light-emitting surface. The boundary part of the area; the lower boundary area of a pixelated light shape includes its lower, lower left and lower right boundaries, and the lower boundary has the greatest impact on the superimposed boundary of pixelated and non-pixelated light shapes, so at least The light emitted by the upper boundary part of the upper region of the overall light-emitting surface can be emitted through the light-transmitting micro-holes 61 on the shield, so that the lower boundary of the pixelated light shape becomes soft, so that the pixelated light shape and the non-pixelated light shape are The light shape transitions evenly and better at the overlay boundary.

15 is a schematic diagram of the pixelated light shape formed by the pixelated lighting device of the present invention. It can be seen from the figure that the lower boundary area of the pixelated light shape a2 of the present invention is the superimposed boundary c2 of the present invention superimposed with the non-pixelated light shape Compared with its upper region, the light energy distribution is more dispersed and the boundary is softer, so that the transition between the pixelated light shape a2 and the non-pixelated light shape is more uniform. 16 is a schematic diagram of the simulated light shape of the road using the vehicle pixelated lighting device of the present invention. It can be seen from the figure that the superimposed boundary c2 of the present invention becomes inconspicuous, and the pixelated light shape and the non-pixelated light shape are superimposed. The transition at the boundary c2 is more uniform and the convergence is better.

In order to facilitate the understanding of the basic embodiments of the present invention, further description will be given below in conjunction with specific structures.

Specifically, the shielding member is configured to cover the upper boundary portion of the upper region of the integral light-emitting surface, the left boundary portion of the upper region and the right boundary portion of the upper region. For example, as shown in FIG. 8 , the shutter can be set to cover all of the light-emitting surfaces 511 of the n-row light-emitting units 51 located on the uppermost side or all of the light-emitting surfaces 511 of the n-1 rows of light-emitting units 51 located on the uppermost side and the uppermost The upper part of the light-emitting surface 511 of the n-row light-emitting unit 51 (ie, the upper boundary portion of the upper region of the overall light-emitting surface), and at the same time covers all of the light-emitting surface 511 of the m-row light-emitting unit 51 located on the leftmost or is located at the leftmost The whole of the light-emitting surface 511 of the m-1 column of light-emitting units 51 and the left part of the light-emitting surface 511 of the m-th column of light-emitting units 51 on the leftmost side (ie, the left border portion of the upper region of the overall light-emitting surface), and at the same time cover the All of the light-emitting surface 511 of the light-emitting unit 51 in the rightmost column s or all of the light-emitting surface 511 of the light-emitting unit 51 in the rightmost column s-1 and the right side of the light-emitting surface 511 of the light-emitting unit 51 in the rightmost column s-1 The part (that is, the right boundary part of the upper region of the overall light-emitting surface), that is, the shutter, is arranged in an inverted concave shape. FIG. 9 shows a specific arrangement of the shutter. At this time, the shutter covers the upper part of the light-emitting surface 511 of the light-emitting unit 51 in the uppermost row and the left side of the light-emitting surface 511 of the light-emitting unit 51 in the leftmost column. part and the right part of the light emitting surface 511 of the light emitting unit 51 in the rightmost column. By setting the occluder as an inverted concave shape, the entire lower boundary region of the pixelated light shape can be softened, so that the transition at the superimposed boundary with the non-pixelated light shape is more uniform and the connection is better. Of course, the shutter can also be set to cover only the upper boundary portion of the upper region of the overall light-emitting surface, so that the lower boundary of the pixelated light shape becomes soft; or it can be set to cover the upper boundary portion of the upper region of the overall light-emitting surface at the same time and the left border portion of the upper region of the overall light-emitting surface, so that the lower border and the lower right border of the pixelated light shape become soft; or set to cover both the upper border portion of the upper region of the overall light-emitting surface and the upper portion of the overall light-emitting surface The right border portion of the region to soften the lower and lower left borders of the pixelated light shape.

Preferably, as shown in FIG. 14 , the distance L between the light-emitting surface 511 of the light-emitting unit 51 and the shield is less than or equal to 5 mm, preferably less than or equal to 2 mm, more preferably less than or equal to 0.5 mm. Preferably, the light-transmitting micro-hole 61 is a circular hole, and the diameter of the circular hole is less than or equal to 1 mm, preferably less than or equal to 0.2 mm, so that the diffraction effect can be enhanced. Wherein, the light-transmitting micro-hole 61 is set as a round hole to make the processing easier, and of course, it can also be set as a micro-hole of other shapes, such as a square hole, an oval hole, or a diamond hole. Preferably, the shielding member is a microporous plate 6, the microporous plate 6 is made of a metal material, and the microporous plate 6 is a plate with a plurality of light-transmitting microholes 61. The thickness is 1 mm or less, preferably 0.5 mm or less. The size setting of the microplate 6 can ensure a better imaging effect. If the thickness of the microplate 6 is too large, the amount of light emitted from the light-transmitting microholes 61 will be affected, thereby affecting the imaging effect. The imaging effect of the pixelated light shape can be better ensured by the above-mentioned preferred embodiments.

Further preferably, the surface of the shielding member close to the lens group 1 is provided with an aluminum coating layer. By providing the aluminum coating layer, the reflectivity of the light reflected back to the surface of the shield by the lens group 1 can be improved, thereby further improving the softness of light at the superimposed boundary of the pixelated light shape and the non-pixelated light shape.

As shown in FIG. 8 , the pixel illumination light source 5 includes a plurality of single-pixel light-emitting units 51 arranged in a matrix, wherein the pixel illumination light source 5 is preferably a Micro LED light source, that is, a miniature LED light source. The light-emitting unit 51 is a micron-level LED light-emitting unit, and the miniature LED light source is a rectangular array LED light source composed of tens of thousands of micron-level LED light-emitting 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.

Specifically, as shown in FIGS. 10 to 13 , the lens group 1 includes a first lens 11 , a second lens 12 and a third lens 13 arranged in sequence along the light exit direction of the pixel illumination light source 5 . The first lens 11 is a meniscus lens, the first lens 11 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 its light entrance surface, and the first lens 11 is close to The pixel illumination light source 5, by setting the concave light incident surface and the convex light exit surface, can gather more light to the second lens 12, thereby improving the utilization rate of light; the second lens 12 is a convex-concave lens, The second lens 12 includes a light incident surface with a concave periphery and a convex center and a light exit surface with a convex periphery and a concave center. To the divergence effect, it is used to balance the aberrations in the optical system, avoid the appearance of distorted virtual images, and affect the resolution of imaging; the third lens 13 is a biconvex lens whose light entrance surface and light exit surface are convex, and the third lens 13 Close to the image side, it can play the role of concentrating light to project the light out to form a pixelated light shape. By arranging the first lens 11 , the second lens 12 and the third lens 13 above, it is beneficial to balance the aberrations of the optical system and ensure the imaging clarity. Wherein, the Abbe numbers of the first lens 11 and the third lens 13 are both larger than the Abbe numbers of the second lens 12, which is beneficial to eliminate chromatic aberration. Among them, the Abbe number is an index used to express the dispersion ability of transparent media. 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. Preferably, the material of the first lens 11 is glass, the material of the second lens 12 is PC (polycarbonate), and the material of the third lens 13 is PMMA (polymethyl methacrylate).

Specifically, as shown in FIGS. 5 to 7 , the vehicle pixelated lighting device further includes a lens holder 2 , a circuit board 3 and a heat sink 4 , the first lens 11 , the second lens 12 and the third lens 13 are all Installed in the lens holder 2 , the pixel illumination light source 5 and the shutter are all installed on the circuit board 3 , the lens holder 2 , the circuit board 3 and the heat sink 4 are connected by screws 42 Secure the connections in sequence. The shutter can also be fixed on other components, for example, on the lens holder 2 . The radiator 4 is preferably an air-cooled radiator, and a cooling fan 41 is installed on the rear side of the radiator 4 .

More specifically, as shown in FIG. 10 , the outer peripheral surfaces of the first lens 11 , the second lens 12 and the third lens 13 all abut on the inner wall surface of the lens holder 2 , and pass through the inner wall surface of the lens holder 2 . The three lenses are circumferentially limited; one end of the lens support 2 is provided with a limiting portion 24, and the other end is provided with a beam limiting member, and a first limiting ring 21 and a second limiting ring are provided inside the lens support 2 The outer peripheral surfaces of the ring 22, the first limiting ring 21 and the second limiting ring 22 all abut on the inner wall surface of the lens holder 2, and the first lens 11 is provided on the limiting portion 24 and the first Between the limiting rings 21 , the first lens 11 is limited in the front and rear by the limiting portion 24 and the first limiting ring 21 ; the second lens 12 is arranged on the first limiting ring 21 and the second limiting ring 21 Between the limit rings 22 , the second lens 12 is limited front and rear by the first limit ring 21 and the second limit ring 22 ; the third lens 13 is arranged between the second limit ring 22 and the second limit ring 22 . Between the beam limiting members, the third lens 13 is limited front and rear by the second limiting ring 22 and the beam limiting member, so as to limit and fix the first lens 11 , the second lens 12 and the third lens 13 on the lens holder 2 In this way, each lens is closely arranged in the lens holder 2, which can effectively reduce the overall volume and facilitate miniaturized design; and, compared to only using the lens holder 2 itself to form a limiting structure to limit the front and rear of each lens, by setting the first The limiting ring 21 , the second limiting ring 22 and the light beam limiting member can limit the front and rear of each lens, which can reduce the manufacturing precision requirement of the lens holder 2 and reduce the production cost. The limiting portion 24 is a stepped structure formed at one end of the lens holder 2 . The limiting portion 24 is matched with the light incident surface and the outer peripheral surface of the first lens 11 , and on the one hand, can abut with the outer peripheral surface of the first lens 11 , so as to The circumferential position of the first lens 11 is limited, and on the other hand, it can be in contact with the periphery of the light incident surface of the first lens 11, so that the first lens 11 can be used as an installation reference, which is convenient for the second lens 12 and the third lens 13. Install in sequence. The setting of the beam limiting member is used to block the light that will form stray light, which is beneficial to eliminate the stray light. The light beam limiting member is preferably a diaphragm 23, and the diaphragm 23 is detachably and fixedly connected to the lens holder 2, such as screw connection or snap connection. During installation, install the first lens 11 , the first limiting ring 21 , the second lens 12 , the second limiting ring 22 and the third lens 13 into the lens holder 2 in sequence, and finally install the diaphragm 23 into the lens holder 2 to press the parts into place.

As a specific implementation manner, the vehicle pixelated lighting device of this embodiment includes a pixel lighting light source 5 , a lens group 1 , a lens holder 2 , a circuit board 3 and a heat sink 4 , and the lens group 1 includes light along the pixel lighting source 5 . The first lens 11 , the second lens 12 and the third lens 13 are arranged in sequence in the output direction. The first lens 11 is a concave-convex lens, which includes an inwardly concave light incident surface and an outwardly convex light-emitting surface, and the second lens 12 is convex and concave. The lens includes a light incident surface with a concave periphery and a convex center and a light exit surface with a convex periphery and a concave center. The third lens 13 is a biconvex lens with both the light incident surface and the light exit surface convex. The first lens 11, Both the second lens 12 and the third lens 13 are installed in the lens holder 2 , the pixel illumination light source 5 includes a plurality of light-emitting units 51 arranged in a matrix, and a micro-hole plate 6 is arranged between the pixel illumination light source 5 and the first lens 11 . , the pixel illumination light source 5 and the micro-hole plate 6 are both mounted on the circuit board 3 , and the lens bracket 2 , the circuit board 3 and the heat sink 4 are fixedly connected in turn by screws 42 . The microplate 6 is arranged to cover the upper boundary portion of the upper region of the overall light-emitting surface, the left boundary portion of the upper region and the right boundary portion of the upper region at the same time, so that the light emitted by the light-emitting surface 511 of the light-emitting unit 51 can pass through. The light emitted by the light-transmitting micro-hole 61, and the light emitted by the light-transmitting micro-hole 61 and the light directly emitted by the light-emitting surface 511 of the other light-emitting units 51 are projected through the first lens 11, the second lens 12 and the third lens 13 in turn. A pixelated light shape is formed, so that the entire lower boundary area of the pixelated light shape becomes soft, so that the transition at the superimposed boundary with the non-pixelated light shape is more uniform and the cohesion is better.

Both the vehicle lamp provided in the second aspect of the present invention and the vehicle provided in the third aspect have the same advantages as the above-mentioned vehicle pixelated lighting device over the prior art, which will not be repeated here.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present invention provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims

A pixelated lighting device for a vehicle, characterized in that it comprises a pixel lighting light source (5) and a lens group (1), wherein the lens group (1) comprises a pixel lighting light source (5) arranged in sequence along the light exit direction of the pixel lighting light source (5). At least two lenses are provided, the pixel illumination light source (5) includes a plurality of light-emitting units (51) arranged in a matrix, and the light-emitting surfaces (511) of the plurality of light-emitting units (51) form an integral light-emitting surface, so Between the pixel illumination light source (5) and the lens group (1), a shield having a plurality of light-transmitting micro-holes (61) is arranged, so that the light emitted by the boundary portion of the upper region of the integral light-emitting surface can pass through The light-transmitting micro-holes (61) on the shutter are emitted, wherein the boundary portion of the upper region of the integral light-emitting surface at least includes the upper boundary portion thereof.
The vehicle pixelated lighting device according to claim 1, characterized in that, the distance L between the light-emitting surface (511) of the light-emitting unit (51) and the shutter is less than or equal to 5 mm.
The vehicle pixelated lighting device according to claim 1, wherein the light-transmitting micro-hole (61) is a circular hole, and the diameter of the circular hole is less than or equal to 1 mm.
The vehicle pixelated lighting device according to claim 1, characterized in that, the shielding member is a micro-perforated plate (6), and the thickness of the micro-perforated plate (6) is less than or equal to 1 mm.
The vehicle pixelated lighting device according to claim 1, characterized in that, a surface of the shielding member close to the lens group (1) is provided with an aluminum coating layer.
The vehicle pixelated lighting device according to claim 1, wherein the shielding member is arranged in an inverted concave shape, so that it can cover the upper boundary portion of the upper region of the integral light-emitting surface, and the upper portion of the upper region. a left border portion and a right border portion of the upper region.
The vehicle pixelated lighting device according to any one of claims 1 to 6, characterized in that, the lens group (1) comprises a plurality of lens elements arranged in sequence along the light exit direction of the pixel lighting light source (5). a lens (11), a second lens (12) and a third lens (13), the first lens (11) is a meniscus lens, the second lens (12) is a convexo-concave lens, the third lens ( 13) is a biconvex lens.
The vehicle pixelated lighting device according to claim 7, wherein the first lens (11) includes a concave light incident surface and an outer convex light exit surface, and the second lens (12) includes a peripheral inner surface. The light incident surface is concave and convex in the middle and the light exit surface is convex in the periphery and concave in the middle.
The vehicle pixelated lighting device according to claim 7, wherein the Abbe numbers of the first lens (11) and the third lens (13) are both greater than the Abbe numbers of the second lens (12). number of shells.
The vehicle pixelated lighting device according to claim 7, characterized in that, the vehicle pixelated lighting device further comprises a lens holder (2), a circuit board (3) and a radiator (4), the first lens ( 11), the second lens (12) and the third lens (13) are all installed in the lens bracket (2), and the pixel illumination light source (5) and the shutter are installed on the circuit board (3) ), the lens support (2), the circuit board (3) and the heat sink (4) are fixedly connected in sequence.
The vehicle pixelated lighting device according to claim 10, wherein the outer peripheral surfaces of the first lens (11), the second lens (12) and the third lens (13) all abut on the lens holder On the inner wall surface of (2), one end of the lens holder (2) is provided with a limiting portion (24), the other end is provided with a beam limiting member, and a first limiting ring (21) is provided inside the lens holder (2). and a second limiting ring (22), the first lens (11) is arranged between the limiting portion (24) and the first limiting ring (21), the second lens (12) The third lens (13) is arranged between the second limit ring (22) and the light beam The first lens (11), the second lens (12) and the third lens (13) are limited and fixed in the lens holder (2).
The vehicle pixelated lighting device according to claim 11, characterized in that, the light beam limiting member is a diaphragm (23), and the diaphragm (23) is detachably and fixedly connected to the lens holder.
A vehicle lamp, characterized by comprising the vehicle pixelated lighting device according to any one of claims 1 to 12.
A vehicle, characterized by comprising the vehicle lamp of claim 13 .