CN214064803U - Pixel lighting module, vehicle lighting device and vehicle - Google Patents

Abstract

The utility model relates to a vehicle lighting field specifically discloses a pixel lighting module, including light source module (1) and imaging lens module (2), wherein, light source module (1) includes matrix LED light source (11), circuit board (12) and heat abstractor (13), imaging lens module (2) include lens support (21) and arrange lens group (22) in this lens support (21) in, and this lens group (22) include three lens, matrix LED light source (11) include a plurality of LED units, and each the LED unit all be suitable for by independent switch is realized to the control of circuit board (12) to form required pixel image, this pixel image via lens group (22) throw. Furthermore, the utility model also discloses a vehicle lighting device and vehicle including above-mentioned pixel lighting module. The utility model discloses a pixel lighting module, compact structure is small, is convenient for install on the small-size vehicle, and the colour difference is little, and lighting quality is high.

Description

Pixel lighting module, vehicle lighting device and vehicle

Technical Field

The utility model relates to a vehicle lighting field specifically, relates to a pixel lighting module. Furthermore, the utility model discloses still relate to a vehicle lighting device and vehicle.

Background

Nowadays, the phenomenon of abusing the high beam at night is becoming more and more serious, and the high-brightness high beam can cause dazzling or even temporarily blinding to pedestrians or drivers on vehicles driving in opposite directions, so that great traffic hidden troubles exist.

In view of the above problems, a pixel lighting method is proposed, that is, a plurality of small LED units at a pixel level are integrated into a matrix-type LED light source module, and each LED unit can be independently switched, so that the matrix-type LED light source module can display a required pixel image, and the pixel image is projected through an imaging lens module, thereby achieving intuitive visual information communication.

However, in the pixel illumination module in the prior art, the imaging lens module has a large volume, which results in a large volume of the whole pixel illumination module, and further makes it difficult to miniaturize the vehicle illumination device, which causes great inconvenience to the use of the pixel illumination technology in small vehicles.

In view of the above, a pixel illumination module is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that the first aspect will be solved provides a pixel lighting module, and its required problem of solving is: the structure of the imaging lens module is simplified, the length and the diameter of the imaging lens module are small, the whole volume of the pixel lighting module is small, the pixel lighting technology is convenient to use on a small vehicle, imaging aberration can be reduced, chromatic aberration is eliminated, and imaging quality is improved.

Furthermore, the utility model discloses the problem that still remains to solve provides a vehicle lighting device, and its simple structure is small, is convenient for install on small-size vehicle, and has good pixel illuminating effect.

Further, the to-be-solved problem of the present invention is to provide a vehicle, which has a high quality pixel lighting effect and higher driving safety at night.

In order to solve the technical problem, the utility model provides a pixel lighting module, including light source module and imaging lens module, light source module includes matrix LED light source, circuit board and heat abstractor, imaging lens module includes the lens holder and arranges the battery of lens in this lens holder in, and this battery of lens includes three lens, the matrix LED light source includes a plurality of LED units, and each the LED unit all be suitable for by independent switch is realized in the control of circuit board to form required pixel image, pixel image via the battery of lens throws.

Specifically, the lens group includes a first lens, a second lens and a third lens which are sequentially arranged from the object side to the image side, the first lens is a convex lens in which the first lens light incident surface and the first lens light emergent surface are convex curved surfaces, the second lens is a concave lens in which the second lens light incident surface and the second lens light emergent surface are concave curved surfaces, and the third lens is a convex lens in which the third lens light incident surface and the third lens light emergent surface are convex curved surfaces.

Preferably, the first lens and the third lens are molded from a first material, the second lens is molded from a second material, and the second material is a material having a refractive index greater than the dispersion of the first material.

Furthermore, an antireflection film is arranged on the light incident surface and/or the light emergent surface of at least one of the first lens, the second lens and the third lens.

Furthermore, the first lens is provided with a first lens flanging structure, the second lens is provided with a second lens flanging structure, the third lens is provided with a third lens flanging structure, and the first lens, the second lens and the third lens are fixedly connected with the lens support through the respective corresponding flanging structures.

Preferably, the first lens flanging structure, the second lens flanging structure and the third lens flanging structure are all provided with light blocking layers.

Furthermore, the lens support is sequentially provided with a first cavity, a second cavity and a third cavity from the object side to the image side, a first step structure is formed at the joint of the first cavity and the second cavity, and the diameter of one side of the first cavity at the first step structure is larger than that of one side of the second cavity; a second step structure is formed at the joint of the second chamber and the third chamber, and the diameter of one side of the third chamber at the second step structure is larger than that of one side of the second chamber; one surface, close to the light emitting surface of the first lens, of the first lens flanging structure is connected with the first step structure; one surface, close to the second lens light incident surface, of the second lens flanging structure is connected with the second step structure; one surface, close to the light emitting surface of the second lens, of the second lens flanging structure is connected with one surface, close to the light incident surface of the third lens, of the third lens flanging structure.

Preferably, when the lens group is accommodated in the lens support, at least part of the area of the outer peripheral surface of the first lens flanging structure is connected with the inner wall of the first cavity; the outer peripheral surface of the second lens flanging structure and the outer peripheral surface of the third lens flanging structure are connected with the inner wall of the third chamber in a partial area mode.

More preferably, an opening structure is provided at the first chamber.

Another aspect of the present invention provides a vehicle lighting device, which includes any one of the above technical solutions.

Further, the utility model provides a vehicle still provides, this vehicle includes above-mentioned technical scheme vehicle lighting device.

Through the technical scheme, the utility model discloses pixel lighting module that first aspect provided, its lens battery has realized the formation of image of pixel image through the compound mode of placing a concave lens in two convex lenses, and places the compound mode of a concave lens in two convex lenses to and the material of convex lens and concave lens chooses for use, can offset the chromatic dispersion that produces in the projection imaging process, makes the pixel image colour difference of throwing away little, is difficult for producing dazzlingly stray light; in addition, when the lens group is jointed with the lens support, the lens in the lens group is arranged tightly, the length of the imaging lens module is effectively reduced, the diameter of the imaging lens module is smaller, the integral volume of the pixel lighting module is smaller, and the pixel lighting module is convenient to use on a small vehicle.

The utility model discloses the vehicle lighting device that the second aspect provided, because it has simple structure, small and the high pixel lighting module of lighting quality, so this vehicle lighting device simple structure, small and lighting quality is high, is convenient for use on the small-size vehicle.

The utility model discloses the vehicle that the third aspect provided, the vehicle lighting device of this vehicle have good pixel illuminating effect, are difficult for causing dazzling and blinding of pedestrian and driver, so the security that this vehicle traveles at night is higher.

Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a pixel lighting module of the present invention;

fig. 2 is an exploded view of one embodiment of the pixel illumination module of the present invention;

fig. 3 is a top view of an embodiment of the pixel illumination module of the present invention;

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 3;

fig. 5 is a schematic view of an installation structure of an imaging lens module in an embodiment of the pixel illumination module of the present invention;

FIG. 6 is an enlarged partial schematic view of region B of FIG. 5;

FIG. 7 is an enlarged partial schematic view of region C of FIG. 5;

FIG. 8 is an enlarged partial schematic view of region D of FIG. 5;

fig. 9 is a schematic diagram of an optical path simulation of an embodiment of the pixel illumination module of the present invention;

fig. 10 is a schematic diagram of an imaging effect of a pixel image formed by local lighting of a matrix LED light source according to an embodiment of the pixel lighting module of the present invention;

fig. 11 is an image effect schematic diagram of a pixel image formed by lighting all the matrix LED light sources in an embodiment of the pixel lighting module of the present invention.

Description of the reference numerals

1-light source module 11-matrix type LED light source

12-circuit board 13-heat radiating device

2-imaging lens module 21-lens holder

211-first chamber 2111-opening arrangement

212-second chamber 213-third chamber

214-first step structure 215-second step structure

22-lens group 221-first lens

2211-first lens light-in surface 2212-first lens light-out surface

2213 first lens edge-folding structure 222 second lens

2221-second lens light incident surface 2222-second lens light emergent surface

2223-second lens flange structure 223-third lens

2231 third lens light incident surface 2232 third lens light emergent surface

2233 third lens flanging structure

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

First, it should be noted that "dispersion" refers to the property that the refractive index of the material changes with the change of the frequency of the incident light, for example, white light is composed of seven monochromatic lights of red, orange, yellow, green, blue, indigo and violet, and the refractive index of the seven monochromatic lights is different, so that the white light will be dispersed into the seven colors after being refracted, the degree of dispersion generally depends on the structure of the lens and the material of the lens, and generally, the short wave inward dispersion and the long wave outward dispersion of the convex lens, and the short wave outward dispersion and the long wave inward dispersion of the concave lens, so that the dispersion can be cancelled and corrected by the combination of the concave lens and the convex lens; the term "chromatic aberration" refers to chromatic aberration caused by the difference in the optical paths of different monochromatic lights due to the dispersion caused by the different refractive indices of the different monochromatic lights when white light is used for imaging.

As shown in fig. 1 and fig. 2, the pixel lighting module of the present invention includes a light source module 1 and an imaging lens module 2, the light source module 1 includes a matrix LED light source 11, a circuit board 12 and a heat dissipation device 13, the imaging lens module 2 includes a lens support 21 and a lens set 22 disposed in the lens support 21, the lens set 22 includes three lenses; the matrix LED light source 11 comprises a plurality of LED units, each adapted to be independently switched by control of the wiring board 12 to form a desired pixel image, which is projected via the lens assembly 22.

The utility model relates to a matrix LED light source 11 among pixel lighting module can be preferably the Micro LED light source, a miniature LED light source, and the size of each LED unit in this miniature LED light source is the micron rank, and this miniature LED light source further preferably is the rectangle array LED light source along horizontal extension by the length direction that ten thousand micron order LED units are constituteed. On one hand, the pixel points of the matrix type LED light source 11 can be smaller and denser by selecting the miniature LED light source, so that the definition of a formed pixel image is higher, and further the light shape formed after the pixel image is projected can be regulated and controlled with higher precision, therefore, the number of dark parts which can be formed in the light shape is more, the change of the boundary of the dark part and the position of the dark part is more precise and smooth, and dazzling or blinding of pedestrians or drivers can be better avoided, for example, all LED units are controlled to be turned on, an imaging effect as shown in fig. 11 is formed, namely, a complete light shape with uniform brightness is formed, and the driver can observe the areas in front of a road and at two sides conveniently; for another example, the LED units in a certain area on the matrix LED light source 11 are controlled to be lit one by one to form a local low-brightness light pattern as shown in fig. 10, which not only facilitates the observation of pedestrians and vehicles driving in opposite directions by the driver, but also does not cause dazzling or blinding to pedestrians or drivers due to the excessively high brightness of the vehicle lamp. On the other hand, the matrix LED light source 11 is arranged in a rectangular array extending along the transverse direction in the length direction, so that a wider light shape can be obtained to illuminate the areas on both sides of the road, which is beneficial for the driver to observe the pedestrians and the road signs on both sides of the road. Synthesize above-mentioned advantage, the utility model discloses a pixel lighting module can greatly improve the security of driving at night.

As shown in fig. 3 and 4, in a preferred embodiment, the lens group 22 includes a first lens 221, a second lens 222, and a third lens 223 arranged in sequence from an object side to an image side, where the first lens 221 is a convex lens with a convex curved surface at a first lens light incident surface 2211 and a convex curved surface at a first lens light emergent surface 2212, the second lens 222 is a concave lens with a concave curved surface at a second lens light incident surface 2221 and a concave curved surface at a second lens light emergent surface 2222, and the third lens 223 is a convex lens with a convex curved surface at a third lens light incident surface 2231 and a convex curved surface at a third lens light emergent surface 2232. The first lens 221 is a convex lens with convex curved surfaces on both the first lens light incident surface 2211 and the first lens light emitting surface 2212, so that the diopter of the first lens 221 can be higher, the focal length of the first lens 221 is shorter, and the distance between the first lens 221 and the matrix LED light source 11 can be effectively reduced; the second lens 222 is a concave lens with concave curved surfaces on both the second lens light-in surface 2221 and the second lens light-out surface 2222, on one hand, the second lens 222 is a concave lens capable of canceling and correcting the dispersion phenomenon generated after the light is refracted by the first lens 221 which is a convex lens; on the other hand, the structural design makes the second lens 222 have higher diopter and shorter focal length, and can effectively reduce the distance between the second lens and the first lens 221 and the third lens 223; the third lens 223 is a convex lens in which the third lens light incident surface 2231 and the third lens light emitting surface 2232 are both convex curved surfaces, so that the diopter of the third lens 223 can be higher, the focal length of the third lens 223 is shorter, and the distance between the third lens 223 and the second lens 222 can be effectively reduced; as shown in fig. 9, the light emitted from the matrix LED light source 11 is projected forward through the first lens 221, the second lens 222, and the third lens 223 in this order to form a desired light shape. Synthesize above-mentioned advantage, interval between each lens in this battery of lenses 22 is little, has reduced the length dimension of battery of lenses 22, thereby can reduce the length dimension of lens support 21, make the utility model discloses a pixel lighting module is small, low in manufacturing cost, and the collocation mode of lens in the battery of lenses 22, can effectually offset the dispersion of light refraction in-process, make the dispersion scope that the pixel image formed after throwing via battery of lenses 22 little, thereby make the border line between dark part and the bright part in the light shape that forms more clear and definite, thereby avoided causing dazzling or blinding to pedestrian or driver because of the chromatic light that the dispersion scope made the dispersion produce greatly.

Further, as a preferred embodiment, the first lens 221 and the third lens 223 are formed of a first material, the second lens 222 is formed of a second material, and the refractive index of the second material is larger than that of the first material, so that the aberration of the second material is smaller than that of the first material, and the imaging clarity is good, but the abbe number (abbe number) of the second material is smaller than that of the first material, and the chromatic dispersion thereof is worse than that of the first material, so that in order to be able to correct the chromatic dispersion of the second material, a combination of the first material and the second material is used for the three lenses. Specifically, the first material is preferably organic glass, the second material is preferably polycarbonate, and the combination of the polycarbonate material and the organic glass material can eliminate generated chromatic aberration, so that a pixel image is projected by the three lenses to form a light shape with a small chromatic dispersion area and small chromatic aberration.

Further, as a preferred embodiment, an antireflection film is disposed on the light incident surface and/or the light emitting surface of at least one of the first lens 221, the second lens 222, and the third lens 223. The antireflection film is disposed on the light incident surface and/or the light emitting surface of at least one of the first lens 221, the second lens 222, and the third lens 223, so that the light transmittance of the light incident surface or the light emitting surface provided with the antireflection film can be improved, thereby improving the illumination brightness.

Furthermore, as a preferred embodiment, the first lens 221 has a first lens flange 2213, the second lens 222 has a second lens flange 2223, the third lens 223 has a third lens flange 2233, and the first lens 221, the second lens 222, and the third lens 223 are all fixed to the lens holder 21 via their respective flange structures. The first lens 221, the second lens 222 and the third lens 223 are fixedly connected with the lens support 21 through the respective corresponding flanging structures, on one hand, the connection between each lens and the lens support 21 can be realized through the design of the flanging structures, and on the other hand, the part for passing light can be ensured not to be shielded by the connection structure on the lens support 21, so that the light passing efficiency is ensured, and the illumination brightness is improved.

As shown in fig. 5, as a preferred embodiment, the first lens flange structure 2213, the second lens flange structure 2223 and the third lens flange structure 2233 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 light from entering the flanging structure, so that stray light cannot be generated, the light shape formed by the projected pixel image can be consistent with the pixel image, and extremely bright light spots distributed in a mess cannot be generated.

As shown in fig. 4 to 8, as a preferred embodiment, the lens support 21 is sequentially disposed with a first chamber 211, a second chamber 212 and a third chamber 213 from an object side to an image side, a first step structure 214 is formed at a connection portion of the first chamber 211 and the second chamber 212, and a diameter of the first step structure 214 at the side of the first chamber 211 is larger than that of the second chamber 212; a second step structure 215 is formed at a connection portion of the second chamber 212 and the third chamber 213, and a diameter of the second step structure 215 at a side of the third chamber 213 is larger than a diameter of the second chamber 212. The first chamber 211, the second chamber 212, and the third chamber 213 can receive respective lenses, and the first step structure 214 and the second step structure 215 can facilitate positioning and mounting of the lenses. Specifically, one side of the first lens flanging structure 2213 close to the first lens light-emitting surface 2212 is connected to the first step structure 214; one surface of the second lens flanging structure 2223 close to the second lens light-in surface 2221 is connected with the second step structure 215; one surface of the second lens flanging structure 2223 close to the second lens light-emitting surface 2222 is connected to one surface of the third lens flanging structure 2233 close to the third lens light-entering surface 2231.

As shown in fig. 5, as a preferred embodiment, at least a partial area of the outer circumference of the first lens flange structure 2213 is connected to the inner wall of the first chamber 211; the outer peripheral surface of the second lens flange structure 2223 and the outer peripheral surface of the third lens flange structure 2233 are connected to the inner wall of the third chamber 213 at a partial area. Specifically, when the lens holder 21 receives the lens group 22, the second lens 222 and the third lens 223 in the lens group 22 are combined to form an integral structure and are integrally received in the third cavity 213 of the lens holder 21; or the second lens 222 and the third lens 223 are sequentially accommodated in the third chamber 213. More specifically, as shown in fig. 6, when the first lens 221 is fixedly connected to the lens support 21, one surface of the first lens flange structure 2213 close to the first lens light-emitting surface 2212 is connected to the first step structure 214, and at least a part of the outer peripheral surface of the first lens flange structure 2213 is connected to the inner wall of the first cavity 211, so that the connection is firmer, and the specific connection mode may preferably be glue connection; as shown in fig. 7 and 8, when the second lens 222 and the third lens 223 are integrally fixed to the lens support 21, a surface of the second lens flange structure 2223 close to the second lens light emitting surface 2222 is first connected to a surface of the third lens flange structure 2233 close to the third lens light incident surface 2231, so that the second lens 222 and the third lens 223 form an integral structure, and then a surface of the second lens flange structure 2223 close to the second lens light incident surface 2221 is connected to the second step structure 215, and the outer peripheral surfaces of the second lens flange structure 2223 and the third lens flange structure 2233 have partial areas connected to the inner wall of the third cavity 213, so that the connection is firmer, and the specific connection mode may preferably be glue joint. This connected mode's design for first lens 221 is put into first cavity 211 from the rear, and third cavity 213 is put into from the front to second lens 222 and third lens 223, thereby makes the diameter size of third cavity 213 can not receive the restriction of the diameter size of first lens 221, therefore can reduce the diameter of third cavity 213, thereby can reduce the diameter of lens support 21, makes the utility model discloses a pixel lighting module is small, low in manufacturing cost.

As shown in fig. 4, as a preferred embodiment, an opening structure 2111 is provided at the first chamber 211. The opening structure 2111 can facilitate the placement of a connector (not shown in the figure) to supply power to the circuit board 12 and the matrix LED light source 11, and can perform the functions of ventilation and heat dissipation to improve the heat dissipation power of the light source module 1.

The control software involved in the utility model adopts the prior art.

On the basis of above-mentioned pixel lighting module embodiment, the utility model discloses in the vehicle lighting device's of second aspect embodiment, including any one of above-mentioned technical scheme pixel lighting module, can also include the lamp shade, consequently have all beneficial effects that the technical scheme of above-mentioned pixel lighting module embodiment brought at least, and this vehicle lighting device is small, is favorable to using on small-size vehicle. In a similar way, the vehicle of the third aspect of the present invention includes the vehicle lighting device of the second aspect, and also has at least all the advantages brought by the technical solution of the above-mentioned pixel lighting module embodiment.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (11)

1. The utility model provides a pixel lighting module, includes light source module (1) and imaging lens module (2), its characterized in that, light source module (1) includes matrix LED light source (11), circuit board (12) and heat abstractor (13), imaging lens module (2) include lens holder (21) and place lens group (22) in this lens holder (21) in, and this lens group (22) include three lens, matrix LED light source (11) include a plurality of LED units, and each the LED unit all is suitable for by the control of circuit board (12) realizes independent switch to form required pixel image, pixel image via lens group (22) are thrown.

2. The pixel illumination module according to claim 1, wherein the lens group (22) includes a first lens (221), a second lens (222), and a third lens (223) arranged in sequence from an object side to an image side, the first lens (221) is a convex lens in which the first lens light incident surface (2211) and the first lens light emergent surface (2212) are convex curved surfaces, the second lens (222) is a concave lens in which the second lens light incident surface (2221) and the second lens light emergent surface (2222) are concave curved surfaces, and the third lens (223) is a convex lens in which the third lens light incident surface (2231) and the third lens light emergent surface (2232) are convex curved surfaces.

3. The pixel illumination module of claim 2, wherein the first lens (221) and the third lens (223) are molded from a first material, the second lens (222) is molded from a second material, and the second material is a material having a refractive index greater than the first material.

4. The pixel illumination module of claim 2, wherein an antireflection film is disposed on at least one of the light incident surface and/or the light emergent surface of the first lens (221), the second lens (222), and the third lens (223).

5. The pixel lighting module according to claim 2, wherein the first lens (221) is provided with a first lens flange structure (2213), the second lens (222) is provided with a second lens flange structure (2223), the third lens (223) is provided with a third lens flange structure (2233), and the first lens (221), the second lens (222), and the third lens (223) are all fixedly connected with the lens holder (21) via respective corresponding flange structures.

6. The pixel lighting module of claim 5, wherein the first lens flanging structure (2213), the second lens flanging structure (2223) and the third lens flanging structure (2233) are all provided with light blocking layers thereon.

7. The pixel illumination module according to claim 5, wherein the lens support (21) is provided with a first chamber (211), a second chamber (212) and a third chamber (213) in sequence from an object side to an image side, a first step structure (214) is formed at a connection position of the first chamber (211) and the second chamber (212), and a diameter of the first chamber (211) side of the first step structure (214) is larger than that of the second chamber (212) side; a second step structure (215) is formed at the joint of the second chamber (212) and the third chamber (213), and the diameter of the second step structure (215) at the side of the third chamber (213) is larger than that of the second chamber (212);

one surface, close to the first lens light-emitting surface (2212), of the first lens flanging structure (2213) is connected with the first step structure (214); one surface, close to the second lens light incident surface (2221), of the second lens flanging structure (2223) is connected with the second step structure (215); one surface of the second lens flanging structure (2223) close to the second lens light-emitting surface (2222) is connected with one surface of the third lens flanging structure (2233) close to the third lens light-in surface (2231).

8. The pixel lighting module according to claim 7, wherein at least a partial area of the outer circumference of the first lens flanging structure (2213) is connected with the inner wall of the first cavity (211); the outer peripheral surface of the second lens flanging structure (2223) and the outer peripheral surface of the third lens flanging structure (2233) are connected with the inner wall of the third chamber (213) in partial areas.

9. The pixel illumination module according to claim 7, wherein an opening structure (2111) is provided at the first chamber (211).

10. A vehicle lighting device characterized by comprising the pixel lighting module according to any one of claims 1 to 9.

11. A vehicle characterized by comprising the vehicle lighting device according to claim 10.

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