Self-driving automobile camera module light shield and self-driving automobile camera device

Abstract

The invention provides an automatic driving automobile camera module light shield and an automatic driving automobile camera device, and particularly relates to the technical field of cameras. The camera module light shield of the self-driving automobile comprises a light shield body and an ultra-black coating coated on the light shield body, the ultra-black coating is of a forest-like array structure, and the thickness of the ultra-black coating is 50-200 microns. According to the ultra-black coating, by means of a forest-like array structure, under the test conditions that the incident angle is 0-90 degrees and the wavelength is 300-1400 nm, the light reflectivity of the light shield is as low as 0.6%-2%. The light shield can always keep stable high light absorption performance in a wide incident angle range of-90 degrees to 90 degrees and a wide spectral interval of 300 nm to 1400 nm, it is ensured that the reflectivity of the light shield does not obviously fluctuate along with changes of the incident light angle, finally the false detection rate of the automatic driving camera is effectively reduced, and the glare and ghosting phenomena in the imaging process are remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of camera technology, and in particular to a sunshade for an autonomous vehicle camera module and an autonomous vehicle camera device. Background Technology

[0002] In the development of autonomous driving technology towards Level 3 and higher, the environmental perception system, as the core of the vehicle's "perception of the world," is crucial, and its accuracy is a prerequisite for ensuring the safe and reliable operation of the decision-making and control modules. As an indispensable core sensor in the environmental perception system, the onboard camera plays an irreplaceable role in scene understanding tasks such as traffic sign recognition, lane detection, and obstacle classification due to its controllable cost and ability to output rich texture and color information. The visual data it provides is the primary basis for constructing semantic models of the surrounding environment. Therefore, the imaging quality of the camera directly determines the accuracy of subsequent object detection, segmentation, and tracking algorithms, thus affecting the overall operational safety of the autonomous driving system.

[0003] However, the complex optical conditions in real-world driving environments severely limit the imaging performance of vehicle cameras. In strong light scenarios, reflected light from the windshield, diffused light from the road surface, and stray light generated by extreme conditions such as sudden changes in light at tunnel entrances and exits, midday backlight, and strong reflections from snow can cause problems such as glare, ghosting, and a significant decrease in image contrast in camera imaging. These imaging defects significantly reduce the accuracy of environmental perception systems in recognizing targets. For example, they may mistake areas reflecting strong light for obstacles, or fail to recognize pedestrians and vehicles under backlight conditions, potentially leading to safety risks such as false emergency braking and lane-keeping assist failure. This has become a major technical obstacle to achieving reliable all-weather, all-scenario operation of L3+ level autonomous driving systems. Therefore, effectively suppressing stray light in vehicle cameras has become a key technical requirement for improving the perception performance of autonomous driving.

[0004] Currently, the mainstream stray light suppression solution in the industry is to equip automotive cameras (especially front-facing main cameras) with dedicated sunshades, which use physical structures to block strong non-imaging light outside the field of view from directly entering the lens. To avoid secondary stray light formed by reflected light from the inner wall of the sunshade, its inner wall needs to be treated to remove light. Existing light removal technologies mainly include flocking, toothed light removal design, and carbon nanotube deposition, but all of them have obvious technical defects. Firstly, flocking significantly increases reflectivity in strong light and wide-angle incident light scenarios. Furthermore, the flocking adhesive has poor atomization performance, the flock fibers are prone to falling off and aging, and the shed material can easily contaminate the lens and windshield, affecting the perception effect.

[0005] Secondly, although the matte tooth solution has a lower cost, it relies on a fixed step structure and cannot adapt to dynamically changing lighting conditions, resulting in poor actual reflectivity control.

[0006] Thirdly, although the carbon nanotube deposition technology can realize wide spectrum and low reflectivity, the process is complex and the cost is high, which is difficult to be applied on a large scale.

[0007] At the same time, the performance evaluation system of the prior art has limitations, and the glossiness is often used as the evaluation index, and the total hemispherical reflectivity, light absorption rate, bidirectional reflectance distribution function (BRDF) and other core parameters directly determining the extinction effect are ignored, so that the existing scheme cannot meet the stringent requirements of L3+ level automatic driving on stray light suppression.

[0008] Therefore, the present application is proposed. SUMMARY

[0009] The present application aims to provide an automatic driving car camera module sunshade and an automatic driving car camera device, and at least one of the above technical problems in the prior art is solved.

[0010] In order to achieve the above purpose of the present application, the following technical scheme is adopted: The first aspect of the present application provides an automatic driving car camera module sunshade, which comprises a sunshade body and an ultrablack coating coated on the sunshade body; the ultrablack coating has a forest-like array structure; the thickness of the ultrablack coating is 50-200 μm.

[0011] Further, the material of the sunshade body comprises one of PC, ABS, PA, PET, PBT, PP, PC-ASA blended material PC-ABS blended material, GF composite material, PBT and GF composite material.

[0012] Preferably, the thickness of the ultrablack coating is 90-120 μm.

[0013] In one embodiment of the present application, the ultrablack coating is formed by coating a first ultrablack slurry.

[0014] Preferably, the first ultrablack slurry comprises ultrfine carbon black, porous carbon nanospheres, resin, solvent, dispersant, diluent, leveling agent and curing agent in a mass ratio of (1-20):(1-20):(20-100):(20-100):(1-20):(1-100):(0.1-5):(20-100).

[0015] Preferably, the particle size of the ultrfine carbon black is 10-200 nm.

[0016] Preferably, the particle size of the porous carbon nanospheres is 100-500 nm, and the pore size is 2-50 nm.

[0017] Preferably, the resin comprises at least one of an epoxy resin, an acrylic resin, a polyurethane resin, a silicone resin, a polyester resin, preferably a polyurethane resin.

[0018] Preferably, the solvent comprises at least one of butyl acetate, ethyl acetate, xylene, propylene glycol methyl ether acetate, diacetone alcohol, methyl isobutyl ketone, preferably butyl acetate.

[0019] Preferably, the dispersant comprises at least one of a high molecular block copolymer dispersant, an anionic dispersant, a fast alcohol dispersant, preferably a high molecular block copolymer dispersant. Preferably, the diluent comprises at least one of a general diluent, a fast-drying diluent, a slow-drying diluent, preferably a fast-drying diluent.

[0020] Preferably, the leveling agent comprises at least one of a polyether-modified polydimethylsiloxane, an acrylate, a fluorine-modified polymer, preferably a polyether-modified polydimethylsiloxane leveling agent.

[0021] Preferably, the curing agent comprises at least one of an aliphatic isocyanate trimer, an aromatic isocyanate, an epoxy resin curing agent, an amino resin, preferably an aliphatic isocyanate trimer.

[0022] In an embodiment of the present application, the super black coating is formed by coating a second super black slurry.

[0023] Preferably, the second super black slurry comprises a nanoporous structure carbon black, a surface-modified carbon nanotube, a binder, and a dispersion medium in a mass ratio of (1-30):(1-30):(1-30):(10-100).

[0024] Preferably, the nanoporous structure carbon black has a pore size of 2-50 nm and a particle size of 100-500 nm.

[0025] Preferably, the surface-modified carbon nanotube is a surface-hydroxyl-modified carbon nanotube.

[0026] Preferably, the surface-modified carbon nanotube has a diameter of 40-60 nm and a length of 20-40 μm.

[0027] Preferably, the binder comprises at least one of an acrylic resin, an epoxy resin, an acrylic resin, a polyurethane resin, a silicone resin, a polyester resin, preferably a water-based polyurethane.

[0028] Preferably, the dispersion medium comprises at least one of water, N-methyl pyrrolidone, dimethylformamide, acetone, tetrahydrofuran, xylene, ethanol, ethylene glycol, preferably water and ethanol.

[0029] Preferably, the second super-black slurry further comprises a dispersant.

[0030] Preferably, the dispersant comprises at least one of hexadecyl trimethyl ammonium bromide, sodium dodecyl benzene sulfonate, sodium polyacrylate, polyvinylpyrrolidone, preferably polyvinylpyrrolidone.

[0031] Preferably, in the second super-black slurry, the dispersant is 0.1-1 parts by weight.

[0032] In an embodiment of the present application, the super-black coating is formed by coating a third super-black slurry.

[0033] Preferably, the viscosity of the third super-black slurry is 20-100 mPa·s.

[0034] Preferably, the third super-black slurry comprises 2-5 wt% of the multi-dimensional carbon material, 8-12 wt% of the binder, and the rest is solvent.

[0035] Preferably, the multi-dimensional carbon material comprises nanocarbon black, carbon nanotubes and nanographene sheets in a mass ratio of (5-10):(2-4):1.

[0036] Preferably, the binder comprises acrylic resin.

[0037] Preferably, the solvent comprises one of toluene, xylene, chlorobenzene, cyclohexane, N-methyl pyrrolidone (NMP), dimethylformamide (DMF), ethylene glycol (EG), polyethylene glycol (PEG), propylene glycol, glycerol, hexanol, octanol, preferably DMF.

[0038] In an embodiment of the present application, the super-black coating is formed by coating a fourth super-black slurry.

[0039] Preferably, the fourth super-black slurry comprises hollow carbon nanospheres and thermosetting epoxy resin in a mass ratio of (4-8):50.

[0040] Preferably, the hollow carbon nanospheres have a diameter of 10-30 nm and a specific surface area of 200-500 m 2 / g.

[0041] Further, the super-black coating is a high-absorbance super-black film.

[0042] Preferably, the high-absorbance super-black film has an absorbance A of 2.5-4.0 and a reflectivity of 0.1-0.3%.

[0043] Preferably, the high-absorbance super-black film is first attached to the light shield body, and after hot air curing, the super-black coating is obtained.

[0044] Further, the super black coating is obtained by drying the super black paste.

[0045] Preferably, the coating method comprises spraying.

[0046] Preferably, the spraying uses a nozzle size of 1.0-2.0 mm, an atomization pressure of 0.2-0.5 MPa, a time of 10-30 s, and a temperature of 25-35 DEG C for the light shield body.

[0047] Preferably, the drying is performed at a temperature of 60-200 DEG C for a time of 2-10 h.

[0048] Further, the bonding is performed in a dust-free environment.

[0049] Preferably, the bonding is performed at an ambient temperature of 15-30 DEG C and a humidity of 40-60%.

[0050] The second aspect of the application provides an automatic driving vehicle camera device, comprising: a camera module arranged in the interior of the camera device, for focusing and imaging ambient light; and a camera module light shield arranged at the front end of the camera module and surrounding the periphery thereof, wherein the camera module light shield is the automatic driving vehicle camera module light shield of the first aspect.

[0051] Compared with the prior art, the application has at least the following beneficial effects: In the automatic driving vehicle camera module light shield provided by the application, the super black coating greatly enhances the ability to capture and dissipate stray light by virtue of the multiple reflection and absorption of light by the forest-like array structure, and under the test conditions of an incident angle of 0 DEG to 90 DEG and a wavelength of 300 nm to 1400 nm, the light reflectivity of the light shield is significantly reduced to 0.6% to 2% from 6.3% of the matte paint. The advantage is due to the above-mentioned forest-like array structure - the structure is in a close arrangement state, which can cause multiple reflections of light incident at different angles inside the structure, thereby maximizing the absorption of incident light. Based on this, the light shield can always maintain stable high light absorption performance in a wide range of incident angles of -90 DEG to 90 DEG and a wide spectral range of 300 nm to 1400 nm, ensuring that its reflectivity will not fluctuate significantly with the change of the incident light angle, ultimately effectively reducing the false detection rate of the automatic driving camera, and significantly reducing the glare and ghosting phenomenon in the imaging process.

[0052] The automatic driving car camera device provided by the application has the advantages of the light shield cover, can provide stable and reliable imaging data for the camera device of the car, directly improves the recognition and tracking accuracy of the environmental perception system on lane lines, obstacles, traffic signs and other targets, reduces the risk of false detection and missed detection, and further provides accurate decision basis for the planning and control module, reduces the safety hazards such as emergency brake false triggering and lane keeping failure, and effectively enhances the operation reliability and safety of the L3+ level automatic driving car in all-weather and all-scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0054] Figure 1 SEM image of the inner wall of the light shield cover obtained in Example 1; Figure 2 Imaging image of the automatic driving car camera configured with the light shield cover of Example 1; Figure 3 Imaging image of the automatic driving car camera configured with the light shield cover of Comparative Example 1. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0056] In the following, the terms "include", "have", and their synonymous words used in various embodiments of the present application are only intended to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the existence or possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0057] The first aspect of the present application provides an automatic driving car camera module light shield cover, comprising a light shield cover body and a super black coating coated on the light shield cover body; the super black coating has a forest-like array structure; the thickness of the super black coating is 50-200 μm.

[0058] The light shield cover of the automatic driving car camera module provided by the application has the following advantages: the super-black coating greatly enhances the capturing and dissipating capacity of stray light through the multiple reflection and absorption of light by the forest-like array structure, and the light reflectivity of the light shield cover is significantly reduced to 0.6% to 2% under the test conditions of an incident angle of 0° to 90° and a wavelength of 300 nm to 1400 nm, compared with 6.3% of the matte paint. The advantage is derived from the forest-like array structure, which is in a close arrangement state and can make the light incident at different angles reflect multiple times inside the structure, thereby maximizing the absorption of incident light. Based on this, the light shield cover can always maintain stable high light absorption performance within a wide range of incident angles of-90° to 90° and a wide spectral range of 300 nm to 1400 nm, ensuring that its reflectivity does not fluctuate significantly with the change of the incident light angle, ultimately effectively reducing the false detection rate of the automatic driving camera, and significantly reducing the glare and ghosting phenomenon in the imaging process.

[0059] The super-black coating greatly enhances the capturing and dissipating capacity of stray light through the multiple reflection and absorption of light by the forest-like array structure, effectively reduces the total hemispherical reflectivity and improves the light absorption rate, especially for large-angle incident light under complex light conditions such as strong light and side light, which can significantly suppress glare and eliminate ghosting. At the same time, the coating thickness of 50 to 200 μm takes into account the good structural stability and lightweight requirements, avoiding the increase in the volume of the light shield cover due to the over-thickness of the coating or the insufficient light extinction performance caused by the over-thin coating. The coating does not need to rely on complex step structures, has stronger process adaptability, can maintain stable light extinction effect for a long time, reduces the pollution risk of the lens and windshield, and ultimately significantly improves the imaging quality of the vehicle-mounted camera in complex optical environments, providing reliable support for the environmental perception accuracy and operation safety of the L3+ level automatic driving system.

[0060] Typically but not limitedly, the thickness of the super-black coating may be, for example, 50 μm, 70 μm, 100 μm, 120 μm, 150 μm, or 200 μm, or any value within the range of 50 to 200 μm.

[0061] When the coating thickness is less than 50 μm, the coverage of carbon black and carbon nano structures is insufficient, resulting in a shortened multiple reflection path of incident light, a significant decrease in light absorption performance, an increase in reflectivity, and a poor coating uniformity and stability due to the difficulty in maintaining the forest-like structure, which affects the actual application effect. When the thickness exceeds 200 μm, the light absorption performance tends to be saturated, the reflectivity does not improve significantly, the internal stress of the coating increases, and structural failure problems such as cracking and falling off are prone to occur, especially in the vehicle-mounted vibration and temperature change environment, the stability decreases, and the manufacturing cost and process difficulty increase.

[0062] Further, the material of the light shield body includes one of PC, ABS, PA, PET, PBT, PP, PC-ASA blend material, PC-ABS blend material, PE and GF composite material, PBT and GF composite material.

[0063] Preferably, the thickness of the super black coating is 90-120 μm.

[0064] Typically but not limitedly, the thickness of the super black coating can also be 90 μm, 95 μm, 100 μm, 115 μm, 118 μm or 120 μm, or any value within the range of 90-120 μm.

[0065] In an embodiment of the present application, the super black coating is formed by coating a first super black paste.

[0066] Preferably, the first super black paste includes ultrafine carbon black, porous carbon nanospheres, resin, solvent, dispersant, diluent, leveling agent and curing agent in a mass ratio of (1-20):(1-20):(20-100):(20-100):(1-20):(1-100):(0.1-5):(20-100). The ultrafine carbon black has excellent light absorption capacity and can effectively capture incident light in a wide wavelength range. The porous carbon nanospheres enhance the multiple scattering and absorption of light through their three-dimensional porous structure, further reducing reflectivity. The resin as a binder not only maintains the uniform dispersion of carbon black and carbon nanospheres in the coating, but also provides good adhesion and environmental stability.

[0067] Typically but not limitedly, in the first super black paste, the mass ratio of ultrafine carbon black, porous carbon nanospheres, resin, solvent, dispersant, diluent, leveling agent and curing agent may, for example, be 1:1:20:20:5:20:0.4:40, 5:5:40:20:15:10:2:60, 10:10:60:20:10:80:3:80, 15:15:80:20:10:40:0.5:60, 20:20:100:20:20:100:5:100, or any combination ratio within the range of (1-20):(1-20):(20-100):(20-100):(1-20):(1-100):(0.1-5):(20-100).

[0068] Preferably, the particle size of the ultrafine carbon black is 10-200 nm.

[0069] Typically but not limitedly, the particle size of the ultrafine carbon black may, for example, be 10 nm, 50 nm, 100 nm, 150 nm or 200 nm, or any value within the range of 10-200 nm.

[0070] Preferably, the porous carbon nanospheres have a particle size of 100-500 nm and a pore size of 2-50 nm.

[0071] Typically but not exclusively, the porous carbon nanospheres have a particle size of, for example, 100 nm, 200 nm, 300 nm, 400 nm or 500 nm, and a pore size of, for example, 2 nm, 10 nm, 20 nm, 30 nm, 40 nm or 50 nm, or any value within the range of 100-500 nm and 2-50 nm.

[0072] Preferably, the resin comprises at least one of an epoxy resin, an acrylic resin, a polyurethane resin, a silicone resin, a polyester resin, and preferably a polyurethane resin.

[0073] Preferably, the solvent comprises at least one of butyl acetate, ethyl acetate, xylene, propylene glycol methyl ether acetate, diacetone alcohol, methyl isobutyl ketone, and preferably butyl acetate.

[0074] Preferably, the dispersant comprises at least one of a high-molecular-weight block copolymer dispersant, an anionic dispersant, and a fast alcohol dispersant, and preferably a high-molecular-weight block copolymer dispersant. Preferably, the diluent comprises at least one of a general-purpose diluent, a fast-drying diluent, and a slow-drying diluent, and preferably a fast-drying diluent.

[0075] Typically but not exclusively, the general-purpose diluent is xylene and / or butyl acetate; the fast-drying diluent comprises ethyl acetate or acetone; and the slow-drying diluent comprises PMA, DAA, and CAC.

[0076] Preferably, the leveling agent comprises at least one of a polyether-modified polydimethylsiloxane, an acrylate, and a fluorine-modified polymer, and preferably a polyether-modified polydimethylsiloxane leveling agent. Preferably, the curing agent comprises at least one of an aliphatic isocyanate trimer, an aromatic isocyanate, an epoxy resin curing agent, and an amino resin, and preferably an aliphatic isocyanate trimer.

[0077] In an embodiment of the present application, the super-black coating is formed by coating with a second super-black paste.

[0078] Preferably, the second super-black paste comprises nano-porous carbon black, surface-modified carbon nanotubes, binder and dispersion medium in a mass ratio of (1-30):(1-30):(1-30):(10-100). The nano-porous carbon black can effectively enhance the multiple scattering and absorption of light due to its abundant pore structure, while the surface-modified carbon nanotubes, by introducing surface functional groups such as hydroxyl groups, not only improve their dispersibility in the dispersion medium, but also enhance the synergistic light absorption effect with carbon black; the binder fixes the light-absorbing material on the surface of the substrate to form a mechanically stable coating and prevent it from falling off; the dispersion medium helps to form a uniform and dense super-black coating while ensuring the flowability of the paste and the process adaptability. The synergistic effect of the three in a specific ratio range enables the coating to achieve low reflectivity in a wide angle and wide spectral range, while having good process stability and environmental adaptability, suitable for the high performance requirements of the camera lens hood.

[0079] Typically but not limitedly, in the second super-black paste, the mass ratio of nano-porous carbon black, surface-modified carbon nanotubes, binder and dispersion medium can be, for example, 1:1:1:10, 5:5:5:30, 10:10:10:50, 20:20:20:70, 30:30:30:100, or any combination ratio within the range of (1-30):(1-30):(1-30):(10-100).

[0080] Preferably, the pore size of the nano-porous carbon black is 2-50 nm, and the particle size is 100-500 nm.

[0081] Typically but not limitedly, the pore size of the nano-porous carbon black can be, for example, 2 nm, 10 nm, 20 nm, 30 nm, 40 nm or 50 nm, and the particle size can be, for example, 100 nm, 200 nm, 300 nm, 400 nm or 500 nm, or any value within the range of 2-50 nm and 100-500 nm.

[0082] Preferably, the surface-modified carbon nanotubes are surface-hydroxyl-modified carbon nanotubes.

[0083] Preferably, the diameter of the surface-modified carbon nanotubes is 40-60 nm, and the length is 20-40 μm.

[0084] Typically but not limitedly, the diameter of the surface-modified carbon nanotubes can be, for example, 40 nm, 45 nm, 50 nm, 55 nm or 60 nm, and the length can be, for example, 20 μm, 25 μm, 30 μm, 35 μm or 40 μm, or any value within the range of 40-60 nm and 20-40 μm.

[0085] Preferably, the binder comprises at least one of an acrylic resin, an epoxy resin, an acrylic resin, a polyurethane resin, a silicone resin, a polyester resin, preferably a water-based polyurethane.

[0086] Preferably, the dispersion medium comprises at least one of water, N-methyl pyrrolidone, dimethylformamide, acetone, tetrahydrofuran, xylene, ethanol, ethylene glycol, preferably water and ethanol.

[0087] Preferably, the mass ratio of water and ethanol is 7:3.

[0088] Preferably, the second super-black slurry further comprises a dispersant to improve the dispersion uniformity and stability of the nano-porous structure carbon black and the surface-modified carbon nanotubes in the dispersion medium, prevent particle agglomeration, and thus ensure that the coating forms a uniform and dense microstructure during spraying, improve the overall light absorption efficiency and consistency of the coating, and improve the flowability and spraying adaptability of the slurry, thereby providing key process and structural support for obtaining a super-black coating with high performance and low reflectivity.

[0089] Preferably, the dispersant comprises at least one of cetyltrimethylammonium bromide, sodium dodecylbenzenesulfonate, sodium polyacrylate, and polyvinylpyrrolidone, preferably polyvinylpyrrolidone.

[0090] Preferably, in the second super-black slurry, the dispersant is present in an amount of 0.1 to 1 parts by weight.

[0091] Typically but not limitedly, in the second super-black slurry, the dispersant can be present in an amount of, for example, 0.1 parts, 0.3 parts, 0.5 parts, 0.7 parts, or 1 part, or any value within the range of 0.1 to 1 parts.

[0092] In an embodiment of the present application, the super-black coating is formed by coating with a third super-black slurry.

[0093] Preferably, the viscosity of the third super-black slurry is 20 to 100 mPa·s, which helps to achieve good flowability and uniformity during spraying or coating, and ensures that the coating forms a dense and structurally stable forest-like array on the surface of the sunshade. This viscosity range can avoid the problems of sagging and uneven coverage caused by too thin slurry, and prevent defects such as spraying difficulty and rough coating caused by too thick slurry, thereby achieving the best balance between process adaptability and high light absorption performance and structural stability, and supporting the technical effect of the super-black coating in maintaining low reflectivity under wide spectrum and large-angle incident light conditions.

[0094] Typically but not exclusively, the viscosity of the third super black paste may be, for example, 20 mPa·s, 40 mPa·s, 60 mPa·s, 80 mPa·s or 100 mPa·s, or any value within the range of 20-100 mPa·s.

[0095] Preferably, the third super black paste comprises 2-5 wt% of the multi-dimensional carbon material, 8-12 wt% of the binder, and the balance solvent.

[0096] Typically but not exclusively, in the third super black paste, the content of the multi-dimensional carbon material may be, for example, 2 wt%, 3 wt%, 4 wt% or 5 wt%, the content of the binder may be, for example, 8 wt%, 9 wt%, 10 wt%, 11 wt% or 12 wt%, and the balance is solvent, and the proportions of the components may also be adjusted arbitrarily within the range.

[0097] Preferably, the multi-dimensional carbon material comprises nano-carbon black, carbon nanotubes and nano-graphene sheets in a mass ratio of (5-10):(2-4):1. Through the synergistic effect of the multi-scale carbon material, the wide-spectrum light absorption performance of the coating is significantly enhanced. The nano-carbon black provides basic light absorption capability, the carbon nanotubes construct a three-dimensional light guide network, extend the optical path and promote multiple reflections, and the nano-graphene sheets enhance the light capture and scattering effect through its two-dimensional structure. The three components synergize at a specific ratio to achieve high-efficiency light absorption of the coating at different incident angles and wavelength ranges, while improving the structural stability and thermal conductivity of the coating, thereby meeting the high-performance requirements of the automatic driving camera sunshade under complex optical and environmental conditions.

[0098] Typically but not exclusively, in the multi-dimensional carbon material, the mass ratio of the nano-carbon black, the carbon nanotubes and the nano-graphene sheets may be, for example, 5:2:1, 6:3:1, 8:4:1 or 10:4:1, or any combination ratio within the range of (5-10):(2-4):1.

[0099] Preferably, the binder comprises an acrylic resin.

[0100] Preferably, the solvent comprises one of toluene, xylene, chlorobenzene, cyclohexane, N-methyl pyrrolidone (NMP), dimethylformamide (DMF), ethylene glycol (EG), polyethylene glycol (PEG), propylene glycol, glycerol, hexanol and octanol, and preferably is DMF.

[0101] In an embodiment of the present application, the super black coating is formed by coating with a fourth super black paste.

[0102] Preferably, the fourth super-black paste comprises hollow carbon nanospheres and thermosetting epoxy resin in a mass ratio of (4-8):50, the multiple scattering and absorption capacity of light is enhanced by the porous structure of hollow carbon nanospheres, and excellent wide-spectrum low reflection performance is achieved; and the thermosetting epoxy resin not only serves as a structural support material to improve the mechanical strength and environmental stability of the coating, but also enhances the adhesion between the coating and the light shield body through the curing reaction.

[0103] Typically but not limitedly, in the fourth super-black paste, the mass ratio of hollow carbon nanospheres to thermosetting epoxy resin may be, for example, 4:50, 5:50, 6:50, 7:50 or 8:50, or any value within the range of (4-8):50.

[0104] Preferably, the diameter of the hollow carbon nanospheres is 10-30 nm, and the specific surface area is 200-500 m 2 / g.

[0105] Typically but not limitedly, the diameter of the hollow carbon nanospheres may be, for example, 10 nm, 15 nm, 20 nm, 25 nm or 30 nm, and the specific surface area may be, for example, 200 m 2 / g, 300 m 2 / g, 400 m 2 / g or 500 m 2 / g, or any value within the range of 10-30 nm and 200-500 m 2 / g.

[0106] Further, the super-black coating is a high-absorbance super-black film.

[0107] Preferably, the reflectivity of the high-absorbance super-black film is <1.5%.

[0108] Typically but not limitedly, the reflectivity may be, for example, 0.1%, 0.15%, 0.2%, 0.25% or 0.3%, or any value within the range of <1.5%.

[0109] Preferably, the high-absorbance super-black film is first attached to the light shield body, and after hot air curing, the super-black coating is obtained.

[0110] Further, the super-black paste is coated and then dried to obtain the super-black coating.

[0111] Preferably, the coating method comprises spraying.

[0112] Preferably, the nozzle size used in the spraying is 1.0-2.0 mm, the atomization pressure is 0.2-0.5 MPa, the time is within 10-30 s, and the temperature of the light shield body is 25-35°C.

[0113] Typically but not limitedly, the spraying nozzle size used in the spraying can be, for example, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm or 2.0 mm, the atomization pressure can be, for example, 0.2 MPa, 0.3 MPa, 0.4 MPa or 0.5 MPa, the spraying time can be, for example, 10 s, 15 s, 20 s, 25 s or 30 s, and the temperature of the light shield body can be, for example, 25℃, 28℃, 30℃, 32℃ or 35℃, and each parameter can also be combined arbitrarily within the range.

[0114] Preferably, the temperature of the drying is 60-200℃, and the time is 2-10h.

[0115] Typically but not limitedly, the temperature of the drying can be, for example, 60℃, 80℃, 100℃, 120℃, 150℃, 180℃ or 200℃, and the time can be, for example, 2h, 4h, 6h, 8h or 10h, or any combination within the range of 60-200℃ and 2-10h.

[0116] Further, the lamination is performed in a dust-free environment.

[0117] Preferably, the temperature of the environment during the lamination is 15-30℃, and the humidity is 40-60%.

[0118] Typically but not limitedly, the temperature of the environment during the lamination can be, for example, 15℃, 18℃, 20℃, 25℃, 28℃ or 30℃, and the humidity can be, for example, 40%, 45%, 50%, 55% or 60%, or any value within the range of 15-30℃ and 40-60%.

[0119] The second aspect of the present application provides an automatic driving vehicle camera device, comprising: a camera module arranged in the interior of the camera device, for realizing focusing and imaging of ambient light; a camera module light shield arranged at the front end of the camera module and surrounding the periphery thereof; wherein the camera module light shield is the automatic driving vehicle camera module light shield of the first aspect.

[0120] The automatic driving vehicle camera device provided by the present application, in view of the advantages of the light shield, provides stable and reliable imaging data for the vehicle using the camera device, directly improves the recognition and tracking accuracy of the environmental perception system for lane lines, obstacles, traffic signs and other targets, reduces the risk of false detection and missed detection, and further provides accurate decision basis for the planning and control module, reduces the safety hazards such as emergency braking false triggering and lane keeping failure, and effectively enhances the operation reliability and safety of L3+ level automatic driving vehicles in all-weather and all-scenarios.

[0121] The present application will be further described by specific examples and comparative examples, but it should be understood that these examples are only for a more detailed description and should not be construed as limiting the present application in any form. The raw materials used in the examples and comparative examples of the present application are prepared according to the conventional conditions or the conditions recommended by the manufacturer, unless otherwise specified. The reagents or instruments used are all conventional products that can be purchased on the market, unless otherwise specified.

[0122] Example 1 This example provides an automatic driving car camera lens hood, and the preparation process is as follows: 1. Mix the ultra-fine carbon black, porous carbon nanospheres, hydroxy acrylic resin, butyl acetate, high molecular block copolymer dispersant, fast-drying diluent, polyether modified polydimethylsiloxane leveling agent, and aliphatic isocyanate trimer in a mass ratio of 2:3:25:50:10:2:0.5:30 to obtain a first super-black slurry.

[0123] The particle size of the ultra-fine carbon black is 10-200 nm, the particle size of the porous carbon nanospheres is 100-500 nm, and the pore size is 2-50 nm.

[0124] 2. Spray the first super-black slurry inside the light shield (material PC) with a nozzle size of 1.5 mm, an atomization pressure of 0.3 MPa, a spraying time controlled at 18 s, and a light shield temperature controlled at 30°C. Dry at 150°C for 4 h to form a super-black coating with a thickness of 100 μm.

[0125] Example 2 This example provides an automatic driving car camera lens hood, and the preparation process is as follows: 1. Mix the nano-porous carbon black, surface-modified carbon nanotubes, water-based polyurethane (Dispercoll U42), water, and sodium dodecylbenzenesulfonate in a mass ratio of 4:1:12:20:0.3 to obtain a second super-black slurry.

[0126] The pore size of the nano-porous carbon black is 2-50 nm, the surface-modified carbon nanotubes have a hydroxyl group on the surface, a diameter of 40-60 nm, and a length of 30 μm.

[0127] 2. Spray the second super-black slurry inside the light shield (material PC) with a nozzle size of 1.5 mm, an atomization pressure of 0.3 MPa, a spraying time controlled at 18 s, and a light shield temperature controlled at 30°C. Dry at 150°C for 4 h to form a super-black coating with a thickness of 100 μm.

[0128] Example 3 This example provides an automatic driving car camera lens hood, and the preparation process is as follows: 1. The third ultra-black slurry is obtained by uniformly mixing multi-dimensional carbon material, acrylic resin (DP810 NS), and DMF in a mass ratio of 3:10:87, and the viscosity is 57 mPa·s.

[0129] The multi-dimensional carbon material includes nano-carbon black, carbon nanotubes, and nano-graphene sheets in a mass ratio of 6:2:1.

[0130] 2. The third ultra-black slurry is sprayed inside the light shield (PC material), the nozzle size is 1.5 mm, the atomization pressure is 0.3 MPa, the spraying time is controlled to be 18 s, the light shield temperature is controlled to be 30°C, and the formed ultra-black coating has a thickness of 100 μm after drying at 150°C for 4 h.

[0131] Example 4 The embodiment provides an automatic driving automobile camera light shield, and the preparation process is as follows: 1. The fourth ultra-black slurry is obtained by uniformly mixing hollow carbon nanospheres and thermosetting epoxy resin (CYD-128) in a mass ratio of 3:50.

[0132] The hollow carbon nanospheres have a diameter of 20 nm and a specific surface area of 300 m 2 / g.

[0133] 2. The fourth ultra-black slurry is sprayed inside the light shield (PC material), the nozzle size is 1.5 mm, the atomization pressure is 0.3 MPa, the spraying time is controlled to be 18 s, the light shield temperature is controlled to be 30°C, and the formed ultra-black coating has a thickness of 100 μm after pre-curing at 80°C for 1 h and then curing at 150°C for 4 h.

[0134] Example 5 The embodiment provides an automatic driving automobile camera light shield, and the preparation process is as follows: The high-lightness ultra-black film (trade name 99F-11) is cut to a suitable size, and is closely attached to the inner wall surface of the light shield under dust-free conditions through a self-adhesive film process, the film temperature is 20°C, and the humidity is 50%; after the film is completely attached, a hot air gun (or natural air drying) is used to accelerate the evaporation of the installation liquid, so that the film is more firmly adhered to the inner wall of the light shield.

[0135] Example 6 The embodiment provides an automatic driving automobile camera light shield, and the preparation process is as follows: 1. The first ultra-black slurry is obtained by uniformly mixing ultra-fine carbon black, hydroxyl acrylic resin, high molecular block copolymer dispersant, ethyl acetate, polyether modified polydimethylsiloxane leveling agent, and aliphatic isocyanate trimer in a mass ratio of 5:25:10:50:0.5:30.

[0136] The particle size of the superfine carbon black is 10-200 nm.

[0137] 2. Same as the step of Example 1.

[0138] Example 7 The embodiment provides an automatic driving automobile camera lens hood, and a preparation process is as follows: 1. The first super-black slurry is obtained by uniformly mixing porous carbon nanospheres, hydroxy acrylic resin, a high molecular block copolymer dispersant, ethyl acetate, a polyether modified polydimethylsiloxane leveling agent and an aliphatic isocyanate trimer at a mass ratio of 5:25:10:50:0.5:30.

[0139] The particle size of the porous carbon nanospheres is 100-500 nm, and the pore size is 2-50 nm.

[0140] 2. Same as the step of Example 1.

[0141] Example 8 The embodiment provides an automatic driving automobile camera lens hood, and a preparation process is as follows: 1. The second super-black slurry is obtained by uniformly mixing surface modified carbon nanotubes, water-based polyurethane (Dispercoll U42), water and sodium dodecyl benzene sulfonate at a mass ratio of 5:12:20:0.3.

[0142] The surface of the surface modified carbon nanotubes is provided with hydroxyl groups, the diameter is 40-60 nm, and the length is 30 mu m.

[0143] 2. Same as the step of Example 2.

[0144] Example 9 The embodiment provides an automatic driving automobile camera lens hood, and a preparation process is as follows: 1. The second super-black slurry is obtained by uniformly mixing nano-porous structure carbon black, water-based polyurethane (Dispercoll U42), water and sodium dodecyl benzene sulfonate at a mass ratio of 5:12:20:0.3.

[0145] The pore size of the nano-porous structure carbon black is 2-50 nm.

[0146] 2. The second super-black slurry is sprayed in the inside of the lens hood (PC material), the nozzle size is 1.5 mm, the atomization pressure is 0.3 MPa, the spraying time is controlled to be 18 s, the lens hood temperature is controlled to be 30 DEG C, and the formed super-black coating has a thickness of 100 mu m after drying at 150 DEG C for 4 h.

[0147] Example 10 The embodiment provides an automatic driving automobile camera lens hood, and a preparation process is as follows: 1. The third super black slurry is obtained by uniformly mixing multi-dimensional carbon material, acrylic resin (DP810 NS) and DMF in a mass ratio of 3:10:87, and the viscosity is 57 mPa·s.

[0148] The multi-dimensional carbon material comprises carbon nanotubes and nano graphene sheets in a mass ratio of 8:1.

[0149] 2. The same as the step in Example 3.

[0150] Example 11 The embodiment provides an automatic driving automobile camera lens hood, and the preparation process is as follows: 1. The third super black slurry is obtained by uniformly mixing multi-dimensional carbon material, acrylic resin (DP810 NS) and DMF in a mass ratio of 3:10:87, and the viscosity is 57 mPa·s.

[0151] The multi-dimensional carbon material comprises nano carbon black and nano graphene sheets in a mass ratio of 8:1.

[0152] 2. The same as the step in Example 3.

[0153] Example 12 The embodiment provides an automatic driving automobile camera lens hood, and the preparation process is as follows: 1. The third super black slurry is obtained by uniformly mixing multi-dimensional carbon material, acrylic resin (DP810 NS) and DMF in a mass ratio of 3:10:87, and the viscosity is 57 mPa·s.

[0154] The multi-dimensional carbon material comprises nano carbon black and carbon nanotubes in a mass ratio of 6:2.

[0155] 2. The same as the step in Example 3.

[0156] Example 13 The embodiment provides an automatic driving automobile camera lens hood, and the difference from the automatic driving automobile camera lens hood in Example 1 is that the thickness of the super black coating layer is 50 microns, and the rest of the preparation method is the same as that in Example 1, which will not be repeated here.

[0157] Example 14 The embodiment provides an automatic driving automobile camera lens hood, and the difference from the automatic driving automobile camera lens hood in Example 1 is that the thickness of the super black coating layer is 200 microns, and the rest of the preparation method is the same as that in Example 1, which will not be repeated here.

[0158] Comparative Example 1 The comparative example provides an automatic driving automobile camera lens hood, and the preparation process is as follows: The short fibers are vertically implanted into the inner wall of the camera lens hood by electrostatic flocking technology, and the temperature is controlled at about 30°C. The high-adhesion glue such as water-based glue is used to ensure the bonding strength of the flocking layer and the inner wall of the lens hood.

[0159] Comparative Example 2 The present comparative example provides an automatic driving car camera lens hood, which is different from the technical features of Example 1 in that the thickness of the super-black coating formed is 30 μm, and the rest of the preparation method is the same as that of Example 1, which will not be repeated here.

[0160] Comparative Example 3 The present comparative example provides an automatic driving car camera lens hood, which is different from the technical features of Example 1 in that the thickness of the super-black coating formed is 250 μm, and the rest of the preparation method is the same as that of Example 1, which will not be repeated here.

[0161] Characterization Example 1 The inner wall of the automatic driving car camera lens hood obtained in Example 1 is subjected to scanning electron microscopy, and the obtained electron microscope image is shown in Figure 1 It can be seen that the surface of the super-black coating is a forest-like array structure.

[0162] Test Example 1 The lens hoods obtained in the examples and comparative examples are subjected to performance tests, including weather resistance (test according to GB / T 9286), wide-spectrum absorption (test according to ASTM E2387-19), three-axis wide-band random vibration test (test according to GB / T 2423.56), haze value (photometric method test), wide scattering angle BRDF test (test according to ASTM E2387-19), and the results are shown in Table 1.

[0163] Table 1

[0164] As can be seen from Table 1, compared with Comparative Example 1, the weather resistance of Examples 1-5 is basically equivalent, and in the wide-spectrum absorption performance test, Examples 1-5 all have a substantial improvement compared with Comparative Example 1, among which the reflectivity of Example 2 can be reduced to 1.2%. After the three-axis wide-band random vibration test, none of Examples 1-5 has a powder falling phenomenon, and the change in blackness of the material is ≤5%. In the subsequent 120°C and 100°C haze tests, the haze values of Examples 1-4 are all better than that of Comparative Example 1, especially the haze value of Example 1 is the best, and the comprehensive test performance of the product is good. Example 5 is a high-molecular super-black film, and in practice, more attention is paid to its dimensional stability and surface state at high temperature, so the haze value at high temperature is not tested here. In the wide scattering angle (BRDF) performance test, Examples 1, 2, 4 and 5 all perform better than Comparative Example 1, and the light reflectivity of Example 2 is the lowest.

[0165] Compared with Example 1, Examples 6 and 7 are basically equivalent in weather resistance and blackness change, but their reflectivity, haze value and total scattering are lower than those of Example 1. Examples 13 and 14 are equivalent to Example 1 in comprehensive performance. In contrast, Comparative Examples 2 and 3 are inferior to Example 1 in reflectivity, haze value and total scattering due to the difference in coating thickness.

[0166] Compared with Example 2, Examples 8 and 9 are basically equivalent in weather resistance and blackness change, but their reflectivity, haze value and total scattering are lower than those of Example 2.

[0167] Compared with Example 3, Examples 10, 11 and 12 change the ratio of the three carbon materials, and the results show that the absence of any one of the carbon materials will result in lower final performance than Example 3.

[0168] As described above, Examples 1 and 2 have excellent comprehensive performance, but considering the cost factor of carbon nanotubes, the product of Example 1 is finally selected for actual application testing of automobiles.

[0169] Application Example The sunshade of Example 1 is mounted to a standardized camera module, and the integrated module is assembled in a test vehicle equipped with an intelligent driving system. Then, in a real road environment with strictly controlled variables, a field application test is carried out for the typical complex lighting scene of direct sunlight at noon.

[0170] The test results show that when the inner wall of the camera sunshade uses the product of Example 1, the stray light interference under strong light irradiation can be significantly suppressed, and the captured image has high contrast, clear imaging and excellent quality (as shown in Figure 2 ). When the camera sunshade with the inner wall of Comparative Example 1 is used, the imaging is seriously affected by stray light, and problems such as local overexposure, reduced contrast and blurred details occur (as shown in Figure 3 ). The above differences show that the product of Example 1 can effectively improve the imaging quality in strong light environment, thereby avoiding the problem of reduced environmental perception accuracy and reliability of the intelligent driving system caused by imaging defects of Comparative Example 1.

[0171] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic driving car camera module shade, characterized in that, The light shield body and the super black coating coated on the light shield body; The super black coating has a forest-like array structure; The thickness of the super black coating is 50-200 μm.

2. The automotive camera lens hood of claim 1, wherein, The material of the light shield body includes one of PC, ABS, PA, PET, PBT, PP, PC-ASA blend material, PC-ABS blend material, PE and GF composite material, PBT and GF composite material; Preferably, the thickness of the super black coating is 90-120 μm.

3. The automotive camera lens hood of claim 1, wherein, The super black coating is formed by coating a first super black paste; Preferably, the first super black paste includes super fine carbon black, porous carbon nanospheres, resin, solvent, dispersant, diluent, leveling agent and curing agent in a mass ratio of (1-20):(1-20):(20-100):(20-100):(1-20):(1-100):(0.1-5):(20-100); Preferably, the particle size of the super fine carbon black is 10-200 nm; Preferably, the particle size of the porous carbon nanospheres is 100-500 nm, and the pore size is 2-50 nm; Preferably, the resin includes at least one of epoxy resin, acrylic resin, polyurethane resin, silicone resin and polyester resin, and is preferably polyurethane resin; Preferably, the solvent includes at least one of butyl acetate, ethyl acetate, xylene, propylene glycol methyl ether acetate, diacetone alcohol and methyl isobutyl ketone, and is preferably butyl acetate; Preferably, the dispersant includes at least one of high molecular block copolymer dispersant, anionic dispersant and fast alcohol dispersant, and is preferably high molecular block copolymer dispersant; Preferably, the diluent includes at least one of general diluent, fast drying diluent and slow drying diluent, and is preferably fast drying diluent; Preferably, the leveling agent includes at least one of polyether modified polydimethylsiloxane, acrylate and fluorine modified polymer, and is preferably polyether modified polydimethylsiloxane; Preferably, the curing agent includes at least one of aliphatic isocyanate trimer, aromatic isocyanate, epoxy resin curing agent and amino resin, and is preferably aliphatic isocyanate trimer.

4. The automotive camera lens hood of claim 1, wherein, The super black coating is formed by coating a second super black paste; Preferably, the second super black paste includes nano-porous structure carbon black, surface modified carbon nanotube, binder and dispersion medium in a mass ratio of (1-30):(1-30):(1-30):(10-100); Preferably, the nano-porous structure carbon black has a pore size of 2-50 nm and a particle size of 100-500 nm; Preferably, the surface modified carbon nanotube is a surface hydroxyl modified carbon nanotube; Preferably, the surface modified carbon nanotube has a diameter of 40-60 nm and a length of 20-40 μm; Preferably, the binder includes at least one of acrylic resin, epoxy resin, acrylic resin, polyurethane resin, silicone resin and polyester resin, and is preferably water-based polyurethane. Preferably, the dispersion medium comprises at least one of water, N-methyl pyrrolidone, dimethylformamide, acetone, tetrahydrofuran, dimethylbenzene, ethanol, ethylene glycol, preferably water and ethanol; Preferably, the second super-black paste further comprises a dispersant; Preferably, the dispersant comprises at least one of cetyltrimethylammonium bromide, sodium dodecylbenzenesulfonate, sodium polyacrylate, polyvinylpyrrolidone, preferably polyvinylpyrrolidone; Preferably, in the second super-black paste, the weight fraction of the dispersant is 0.1-1 parts.

5. The automotive camera lens hood of claim 1, wherein, The super-black coating is formed by coating a third super-black paste; Preferably, the viscosity of the third super-black paste is 20-100 mPa·s; Preferably, the third super-black paste comprises 2-5 wt% of a multi-dimensional carbon material, 8-12 wt% of a binder, and the balance of a solvent; Preferably, the multi-dimensional carbon material comprises nanocarbon black, carbon nanotubes, and nanographene sheets in a mass ratio of (5-10):(2-4):1; Preferably, the binder comprises an acrylic resin; Preferably, the solvent comprises at least one of toluene, xylene, chlorobenzene, cyclohexane, N-methyl pyrrolidone, dimethylformamide, ethylene glycol, polyethylene glycol, propylene glycol, glycerol, hexanol, octanol, preferably dimethylformamide.

6. The automotive camera lens hood of claim 1, wherein, The super-black coating is formed by coating a fourth super-black paste; Preferably, the fourth super-black paste comprises hollow carbon nanospheres and thermosetting epoxy resin in a mass ratio of (4-8):50; Preferably, the diameter of the hollow carbon nanospheres is 10-30 nm, and the specific surface area is 200-500 m 2 / g.

7. The automotive camera lens hood of claim 1, wherein, The super-black coating is a high-absorbance super-black film; Preferably, the reflectivity of the high-absorbance super-black film is <1.5%; Preferably, the high-absorbance super-black film is first attached to the light shield body, and after hot air curing, the super-black coating is obtained.

8. The automotive camera lens hood of any one of claims 3-6, wherein, After coating, the super-black coating is obtained by drying; Preferably, the coating method comprises spraying; Preferably, the spraying uses a nozzle size of 1.0-2.0 mm, an atomization pressure of 0.2-0.5 MPa, a time of 10-30 s, and a temperature of the light shield body of 25-35°C; Preferably, the drying temperature is 60-200°C, and the drying time is 2-10 h.

9. The automotive camera lens hood of claim 7, wherein, The attachment is performed in a dust-free environment; Preferably, the attachment is performed at an ambient temperature of 15-30°C and a humidity of 40-60%.

10. An automatic driving car camera device characterized by comprising: It comprises: A camera module arranged inside the camera device for focusing and imaging the ambient light; A camera module light shield arranged at the front end of the camera module and surrounding the periphery thereof; The camera module light shield is the camera module light shield of the autonomous vehicle according to any one of claims 1-9.

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