Brightness-adjustable car lamp projection module

Abstract

The brightness-adjustable car lamp projection module comprises a shell, a lens, a light-emitting assembly and a brightness adjusting assembly, the lens and the light-emitting assembly are arranged on the two sides of the shell respectively, the brightness adjusting assembly is arranged between the shell and the light-emitting assembly, the light-emitting assembly can emit a picture needing to be projected, the picture passes through the lens through reflection, and the brightness of the picture is adjusted. According to the brightness-adjustable vehicle lamp projection module, the brightness of the projection can be adjusted through the brightness adjusting assembly, the driving experience of a user is improved, the brightness-adjustable vehicle lamp projection module is low in cost and high in optical efficiency, the projection brightness can be flexibly adjusted, rich light-emitting patterns can be formed, and the driving experience of the user can be improved.

Description

Technical Field

[0001] The invention belongs to the field of vehicle-mounted projection, and in particular relates to a brightness-adjustable vehicle light projection module. Background Art

[0002] With the continuous advancement of science and technology, headlights, as one of the important safety and appearance parts of automobiles, are undergoing important changes, gradually moving towards intelligence and visualization, from ordinary lighting headlights to ADB / AFS headlights, and then to projection headlights. Pixel-level digital projection headlights can not only project any required traffic signs and markings according to the traffic driving environment, but also freely control the lighting area and illumination, thereby enhancing the interaction between the car and the environment, providing drivers and road participants with safer and more effective lighting, minimizing the adverse hazards such as glare to road participants, and providing users with a safe and convenient driving experience.

[0003] The pixel-level headlights in the prior art have a complex structure and high production cost. When projecting using film, only fixed and simple patterns can be projected. The optical efficiency of film is very low, requiring a long projection distance and bright patterns. Eggshells or multiple very bright light sources are required, which increases costs. Therefore, the pixel-level headlights and films in the prior art are expensive, and the patterns cannot be flexibly adjusted according to user experience.

[0004] Therefore, there is an urgent need to develop a brightness-adjustable car light projection module that is low in cost, high in optical efficiency, can flexibly adjust the projection brightness, can form rich light-emitting patterns, and can improve the user's driving experience. Summary of the invention

[0005] The present invention is made to solve the above problems, and aims to provide a brightness-adjustable car light projection module with low cost, high optical efficiency, flexible adjustment of projection brightness, ability to form rich light patterns, and ability to improve user driving experience. In order to achieve the above objectives, the technical solution adopted by the present invention is:

[0006] The present invention provides a brightness-adjustable vehicle light projection module, which has the following characteristics: it comprises a shell, a lens, a light-emitting component and a brightness-adjusting component, wherein the lens and the light-emitting component are respectively arranged on two sides of the shell, and the brightness-adjusting component is arranged between the shell and the light-emitting component.

[0007] The brightness adjustable vehicle light projection module provided by the present invention may also have such a feature that the brightness adjustment component includes an electroluminescent glass plate and a light-transmitting plate, and the electroluminescent glass plate is arranged on the light-transmitting plate and is located on a side of the light-transmitting plate close to the shell.

[0008] The brightness adjustable vehicle light projection module provided by the present invention may also have the following feature: at least two electro-glass plates are arranged on the light-transmitting plate.

[0009] The brightness adjustable vehicle light projection module provided by the present invention may also have the following features: the light emitting assembly includes a light emitting module and a reflector, the reflector is connected to the housing, and the light emitting module is arranged at the bottom of the reflector.

[0010] The brightness adjustable vehicle light projection module provided by the present invention may also have the following feature: a heat sink is provided at the bottom of the light emitting module.

[0011] In the brightness adjustable car light projection module provided by the present invention, it can also have such a feature that a connecting protrusion is provided on the side of the shell close to the reflector, a threaded hole is provided on the connecting protrusion, a first connecting hole corresponding to the threaded hole is provided on the electro-glass plate, a second connecting hole corresponding to the threaded hole is provided on the light-transmitting plate, a third connecting hole corresponding to the threaded hole is provided on the reflector, a connecting screw is passed through the threaded hole, and the connecting screw is passed through the first connecting hole, the second connecting hole and the third connecting hole.

[0012] The brightness adjustable vehicle light projection module provided by the present invention may also have such a feature that a mounting convex plate is provided at the connection of the shell, and a mounting hole is provided on the mounting convex plate.

[0013] The brightness adjustable vehicle light projection module provided by the present invention may also have the following feature: the inner wall of the reflector is in an arc shape.

[0014] The brightness adjustable vehicle light projection module provided by the present invention may also have such a feature that a snap-in flange is provided on the edge of the lens, a slot matching the snap-in flange is provided on the inner wall of the shell, and the snap-in flange is snap-fitted into the slot.

[0015] The brightness-adjustable vehicle light projection module provided by the present invention may also have the following feature: composite curved surfaces are provided on both sides of the lens.

[0016] The technical effect of the present invention is as follows: the brightness adjustable car light projection module provided by the present invention includes a shell, a lens, a light-emitting component and a brightness adjustment component. The lens and the light-emitting component are respectively arranged on both sides of the shell, and the brightness adjustment component is arranged between the shell and the light-emitting component. The light-emitting component can emit the required projection image, which is reflected through the lens and projected onto the vehicle's driving path. The brightness adjustment component can adjust the brightness of the projection to improve the user's driving experience.

[0017] Therefore, the brightness adjustable car light projection module provided by the present invention has low cost and high optical efficiency, can flexibly adjust the projection brightness, can form rich light-emitting patterns, and can improve the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification includes the following drawings, which show the following contents:

[0019] Figure 1 The structure of the brightness adjustable vehicle light projection module in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the brightness adjustable vehicle light projection module in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 is an exploded view of a brightness-adjustable vehicle light projection module in an embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the structure of the housing in the embodiment of the present invention Figure 1 ;

[0023] Figure 5 Schematic diagram of the structure of the housing in the embodiment of the present invention Figure 2 ;

[0024] Figure 6 is a schematic structural diagram of a lens in an embodiment of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the reflector in the embodiment of the present invention.

[0026] Marked in the figure: shell -10, connecting protrusion -11, threaded hole -12, mounting protrusion -13, mounting hole -14, slot -15, lens -20, snap-on flange -21, light-emitting component -30, light-emitting module -31, reflector -32, third connecting hole -321, heat sink -33, brightness adjustment component -40, glass plate -41, first connecting hole -411, light-transmitting plate -42, second connecting hole -421. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0028] Figure 1 The structure of the brightness adjustable vehicle light projection module in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the brightness adjustable vehicle light projection module in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 1 is an exploded view of a brightness-adjustable vehicle light projection module according to an embodiment of the present invention.

[0029] like Figure 1 , Figure 2 as well as Figure 3 As shown, the brightness adjustable car light projection module provided by the present invention includes a shell 10, a lens 20, a light emitting component 30 and a brightness adjustment component 40. The lens 20 and the light emitting component 30 are respectively arranged on both sides of the shell 10, and the brightness adjustment component 40 is arranged between the shell 10 and the light emitting component 30. The light emitting component 30 can emit the desired projection image, which is reflected through the lens 20 and projected onto the vehicle's driving path. The brightness adjustment component 40 can adjust the brightness of the projection to improve the user's driving experience.

[0030] The brightness adjustment component 40 includes an electroluminescent glass plate 41 and a light-transmitting plate 42. The electroluminescent glass plate 41 is arranged on the light-transmitting plate 42 and is located on the side of the light-transmitting plate 42 close to the shell 10. After being energized, the electroluminescent glass plate 41 can change its own transmittance according to the strength of the electric field. When the electroluminescent glass plate 41 is not energized, it has a transparent effect. At this time, the brightness of the projected picture is the highest. Applying electric fields of different intensities to the electroluminescent glass plate 41 can make the electroluminescent glass plate 41 have different transmittances, thereby adjusting the brightness of the luminous pattern in real time according to user needs, thereby improving the user's driving experience.

[0031] At least two electroglass plates 41 are arranged on the light-transmitting plate 42. The electroglass plates 41 can be arranged evenly or in a staggered manner on the light-transmitting plate 42. The light transmittance between the electroglass plates 41 can be the same or different, so that the light transmittance of different areas is different, so that the brightness of different areas of the luminous pattern is different, so that a pattern with uniform brightness or a pattern with alternating light and dark brightness is formed on the road surface where the car is driving, and a rich pattern combination can be formed, further improving the user's driving experience.

[0032] The light-emitting assembly 30 includes a light-emitting module 31 and a reflector 32. The light-emitting module 31 adopts an LED light source. The LED light source includes a PCB board, LED lamp beads arranged on the PCB board, and a driver IC arranged on the PCB board. The LED lamp beads are evenly and densely arranged on the PCB board, and are used to emit red, green and blue light, which are mixed into various colors and form various patterns. The driver IC is used to control the color and light-emitting time of the LED lamp beads, so as to realize the display of the light-emitting pattern. The reflector 32 is connected to the housing 10. The light-emitting module 31 is arranged at the bottom of the reflector 32. The reflector 32 can reflect the light-emitting pattern emitted by the light-emitting assembly 30 to the lens 20, and then project it onto the path of the car through the lens 20. The electro-glass plate 41 is connected to the PCB board of the light-emitting module 31 through a cable, so that the light-emitting module 31 can change the electric field strength of the electro-glass plate 41, so as to flexibly adjust the brightness and brightness distribution of the emission pattern.

[0033] A heat sink 33 is provided at the bottom of the light emitting module 31, and the heat sink 33 can cool the light emitting module 31 to prevent the light emitting module 31 from working at a high temperature for a long time, thereby extending the service life and stability of the light emitting module 31 and improving the reliability of the structure.

[0034] Figure 4 Schematic diagram of the structure of the housing in the embodiment of the present invention Figure 1 ; Figure 5 Schematic diagram of the structure of the housing in the embodiment of the present invention Figure 2 .

[0035] like Figure 4 and Figure 5 As shown, a connecting protrusion 11 is provided on one side of the shell 10 close to the reflector 32, a threaded hole 12 is provided on the connecting protrusion 11, a first connecting hole 411 corresponding to the threaded hole 12 is provided on the electroglass plate 41, a second connecting hole 421 corresponding to the threaded hole 12 is provided on the light-transmitting plate 42, a third connecting hole 321 corresponding to the threaded hole 12 is provided on the reflector 32, and connecting screws are passed through the threaded hole 12, and the connecting screws are passed through the first connecting hole 411, the second connecting hole 421 and the third connecting hole 321, so that the shell 10, the electroglass plate 41, the light-transmitting plate 42 and the reflector 32 are connected and installed for easy disassembly and assembly.

[0036] The housing 10 is connected with a mounting convex plate 13, and the mounting convex plate 13 is provided with a mounting hole 14. The mounting convex plate 13 and the mounting hole 14 are used to install the housing 10, so as to install the brightness adjustable vehicle lamp projection module provided by the present invention on the vehicle body.

[0037] Figure 6 Schematic diagram of the structure of the lens in the embodiment of the present invention.

[0038] like Figure 6 As shown, the edge of the lens 20 is provided with a snap-in flange 21, and the inner wall of the housing 10 is provided with a snap-in groove 15 adapted to the snap-in flange 21. The snap-in flange 21 is snap-into the snap-in groove 15, so that the lens 20 is mounted on the housing 10, improving the structural stability. Both sides of the lens 20 are provided with a composite curved surface, which is a convex surface with a convex middle. The composite curved surface 21 can improve the imaging effect and optical efficiency of the lens.

[0039] Figure 7 Schematic diagram of the structure of the reflector in the embodiment of the present invention.

[0040] like Figure 7As shown, the inner wall of the reflector 32 is in an arc shape, which can transmit the light pattern emitted by the light-emitting module 31 to the lens 20 through the brightness adjustment component 20 to complete the projection imaging, enhance the interaction between the vehicle and the environment, provide safer and more effective lighting for drivers and road participants, minimize the adverse hazards such as glare caused to road participants, improve safety, and provide users with various application scenario experiences full of technology and fashion.

[0041] Functions and Effects of the Embodiments

[0042] The brightness adjustable car light projection module provided by the present invention includes a shell, a lens, a light-emitting component and a brightness adjustment component. The lens and the light-emitting component are respectively arranged on both sides of the shell, and the brightness adjustment component is arranged between the shell and the light-emitting component. The light-emitting component can emit the required projection image, which is reflected through the lens and projected onto the vehicle's driving path. The brightness adjustment component can adjust the brightness of the projection to improve the user's driving experience.

[0043] Therefore, the brightness adjustable car light projection module provided by the present invention has low cost and high optical efficiency, can flexibly adjust the projection brightness, can form rich light-emitting patterns, and can improve the user's driving experience.

[0044] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A brightness adjustable car light projection module, characterized in that: The invention comprises a housing (10), a lens (20), a light-emitting assembly (30) and a brightness adjustment assembly (40), wherein the lens (20) and the light-emitting assembly (30) are respectively arranged on two sides of the housing (10), and the brightness adjustment assembly (40) is arranged between the housing (10) and the light-emitting assembly (30).

2. The brightness adjustable vehicle light projection module according to claim 1, characterized in that: The brightness adjustment component (40) comprises an electroluminescent glass plate (41) and a light-transmitting plate (42); the electroluminescent glass plate (41) is arranged on the light-transmitting plate (42) and is located on a side of the light-transmitting plate (42) close to the housing (10).

3. The brightness adjustable vehicle light projection module according to claim 2, characterized in that: At least two of the electroglass plates (41) are arranged on the light-transmitting plate (42).

4. The brightness adjustable vehicle light projection module according to claim 3, characterized in that: The light-emitting assembly (30) comprises a light-emitting module (31) and a reflector (32); the reflector (32) is connected to the housing (10); and the light-emitting module (31) is arranged at the bottom of the reflector (32).

5. The brightness adjustable vehicle light projection module according to claim 4, characterized in that: A heat sink (33) is provided at the bottom of the light-emitting module (31).

6. The brightness adjustable vehicle light projection module according to claim 4, characterized in that: A connecting protrusion (11) is provided on one side of the housing (10) close to the reflector (32); a threaded hole (12) is provided on the connecting protrusion (11); a first connecting hole (411) corresponding to the threaded hole (12) is provided on the electro-glass plate (41); a second connecting hole (421) corresponding to the threaded hole (12) is provided on the light-transmitting plate (42); a third connecting hole (321) corresponding to the threaded hole (12) is provided on the reflector (32); a connecting screw is passed through the threaded hole (12); and the connecting screw is passed through the first connecting hole (411), the second connecting hole (421) and the third connecting hole (321).

7. The brightness adjustable vehicle light projection module according to claim 6, characterized in that: The connection of the housing (10) is provided with a mounting convex plate (13), and the mounting convex plate (13) is provided with a mounting hole (14).

8. The brightness adjustable vehicle light projection module according to claim 7, characterized in that: The inner wall of the reflector (32) is in the shape of an arc surface.

9. The brightness adjustable vehicle light projection module according to claim 1, characterized in that: The edge of the lens (20) is provided with a snap-fitting flange (21), the inner wall of the housing (10) is provided with a snap-fitting groove (15) matched with the snap-fitting flange (21), and the snap-fitting flange (21) is snap-fitted in the snap-fitting groove (15).

10. The brightness adjustable vehicle light projection module according to claim 1, characterized in that: Both sides of the lens (20) are provided with composite curved surfaces.

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