Vehicle-mounted laser radar protective lens

Abstract

The utility model relates to the technical field of radar protection, and discloses a vehicle-mounted laser radar protective lens, which comprises a step lens body and a second light-transmitting film plated on the front surface of the step lens body, an adhesive tape is adhered to the back surface of the step lens body, and a circle of side skirt for separation is arranged between the adhesive tape and the step lens body. And a first light-transmitting film is plated on the inner mirror surface surrounding the inner ring of the side skirt. By adopting the structural design of the stepped lens body, the light-transmitting film, the adhesive tape, the side skirt and the like, the vehicle-mounted laser radar can be comprehensively protected, the light-transmitting performance and the stability of the lens can be improved, the impact resistance and the sealing performance of the lens can be enhanced, and the design of the stepped lens can prevent dust and water to the maximum extent, so that the service life of the vehicle-mounted laser radar is prolonged. Media are prevented from entering, the radar is better attached, the influence of refraction and other factors on the function of the radar is prevented, and the side skirt design enables a user to accurately adhere a product without adjustment so as to avoid errors.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar protection technical field especially relates to a vehicle-mounted laser radar protection lens. BACKGROUND

[0002] As an important part of automatic driving technology, vehicle-mounted laser radar plays a crucial role in vehicle environment perception and path planning. However, in actual use, the existing laser radar lens is often affected by external environment, such as the attachment of dust, water droplets and other stains, which leads to the decrease of the transmittance of the lens, and further affects the detection accuracy and working efficiency of the laser radar. Therefore, there is an urgent need for a lens with high protection performance to cope with complex outdoor environment and ensure the stable operation of the laser radar. SUMMARY

[0003] The utility model aims at providing a vehicle-mounted laser radar protection lens, which aims to solve the problem of erosion of dust, water droplets and other stains on the radar lens, thereby affecting the detection accuracy of the laser radar.

[0004] To achieve the above-mentioned purpose, the vehicle-mounted laser radar protection lens of the utility model provides the following technical scheme:

[0005] The utility model discloses a stepped lens body and the second light transmission film of plating on the front of stepped lens body, the back of stepped lens body is adhered with the adhesive tape, and the side skirt of a circle of spacing is arranged between the adhesive tape and the stepped lens body, and the first light transmission film is plated on the inner mirror surface around the inner ring of the side skirt.

[0006] Preferably, in the above-mentioned vehicle-mounted laser radar protection lens, the material of the stepped lens body is K9 or quartz, and the first light transmission film and the second light transmission film are both high-strength diamond-like carbon thin films.

[0007] Preferably, in the above-mentioned vehicle-mounted laser radar protection lens, the stepped lens body is close to horizontal with the adhesive tape and the inner mirror surface on which the first light transmission film is installed.

[0008] Preferably, in the above-mentioned vehicle-mounted laser radar protection lens, the adhesive tape extends from the outermost side of the back of the stepped lens body to the outermost side of the side skirt, the adhesive tape is high-strength glue, and a layer of non-adhesion protective film is covered on the adhesive tape.

[0009] Preferably, in the above-mentioned vehicle-mounted laser radar protection lens, the side skirt is made of high-temperature-resistant PVE material and has elasticity.

[0010] Preferably, in the above-mentioned vehicle-mounted laser radar protection lens, the height of the side skirt is not less than the thickness of the adhesive tape.

[0011] Preferably, in the vehicle-mounted laser radar protective lens, the stepped lens body, the first light-transmitting film and the second light-transmitting film are all subjected to precision polishing treatment to reduce surface defects and scattering.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] By adopting the stepped lens body, the light-transmitting film, the adhesive tape and the side skirt, the vehicle-mounted laser radar can be comprehensively protected, the light-transmitting performance and stability of the lens can be improved, the impact resistance and sealing performance of the lens can be enhanced, the stepped lens can be maximally dustproof and waterproof, medium can be prevented from entering, the lens can be better attached to the radar, the function of the radar can be prevented from being affected by factors such as refraction, and the side skirt can enable the user to accurately bond the product without adjustment and avoid error. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a sectional view of the overall structure of the utility model;

[0015] Fig. 2 It is a schematic structural view of the use effect of the utility model;

[0016] LEGEND:

[0017] 1, stepped lens body; 2, side skirt; 3, first light-transmitting film; 4, second light-transmitting film; 5, adhesive tape. DETAILED DESCRIPTION

[0018] The technical solutions in the utility model application will be clearly and completely described below with reference to the drawings in the utility model application. Obviously, the described application is only a part of the application, not the whole application. Based on the application in the utility model, all other applications obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0020] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be the communication or the interaction of two elements of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0021] In addition, if the embodiment of the utility model involves "first", "second" and the like description, the "first", "second" and the like description is only for the purpose of description, and can not be understood as indicating or suggesting its relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0022] Referring to Figs. 1-2 The utility model discloses a vehicle-mounted laser radar protective lens:

[0023] As Figs. 1-2 The utility model discloses a vehicle-mounted laser radar protective lens, including step mirror body 1 and the second light -transmitting film 4 that is plated in step mirror body 1 positive, step mirror body 1 back is glued with adhesive tape 5, and a circle of side skirt 2 is arranged in the interval between adhesive tape 5 and step mirror body 1, and the first light -transmitting film 3 is plated around the inside ring of side skirt 2.

[0024] Specifically, the stepped lens body 1 is provided with a stepped opening mode, which can make the vehicle-mounted laser radar protective lens fit the product to the maximum extent and prevent water from entering. The stepped lens body 1 is made of K9 or quartz material, which can protect the mirror surface of the vehicle-mounted laser radar lens. The first light-transmitting film 3 and the second light-transmitting film 4 are both high-strength diamond-like carbon films. The stepped lens body 1 is close to horizontal with the adhesive tape 5 and the inner mirror surface on which the first light-transmitting film 3 is installed. The adhesive tape 5 extends from the outermost side of the back of the stepped lens body 1 to the outermost side of the side skirt 2. The adhesive tape 5 is a high-strength adhesive tape, and a layer of non-stick protective film is covered on the adhesive tape 5. The side skirt 2 is made of high-temperature-resistant PVE material and has elasticity. The height of the side skirt 2 is not less than the thickness of the adhesive tape 5. The stepped lens body 1, the first light-transmitting film 3 and the second light-transmitting film 4 all undergo precise polishing treatment to reduce surface defects and scattering.

[0025] Further, the main function of the first light-transmitting film 3 and the second light-transmitting film 4 is to greatly reduce reflection, thereby improving the detection accuracy and efficiency of the laser radar. The adhesive tape 5 not only plays a role in fixing the lens, but also effectively seals the gap between the lens and the mounting surface, preventing impurities such as dust and water from entering, and further prolonging the service life of the lens.

[0026] Further, the first light-transmitting film 3 and the second light-transmitting film 4 are both high-strength diamond-like carbon (DLC) films. Diamond-like carbon material has the characteristics of high hardness, low friction coefficient and good chemical stability. The DLC film has strong resistance to common chemicals such as acid, alkali and salt. In harsh outdoor environments, it can effectively prevent the lens from being chemically corroded and prolong the service life of the lens. The hardness of the DLC film can reach 2040GPa, close to the hardness of natural diamond, which can effectively resist the impact of hard objects such as stones and sand, and protect the lens from being scratched or damaged. The surface of the DLC film is smooth, and the friction coefficient is as low as 0.1-0.2, which can reduce the adhesion of pollutants such as dust and rainwater on the lens surface, reduce the cleaning difficulty, and also help to improve the wear resistance of the lens.

[0027] Further, the main function of the side skirt 2 is to separate and protect the edge part of the inner mirror surface of the lens, preventing it from being damaged by high-strength glue pollution. At the same time, the setting of the side skirt 2 can also enhance the overall structural strength of the lens and improve its impact resistance.

[0028] Further, the stepped lens body 1 is made of K9 or quartz material. Both of these materials have excellent light transmission and stability, which can ensure that the lens maintains high performance in various environments. The anti-reflection film can maximize the reduction of light reflection and scattering, improving the detection accuracy of the laser radar.

[0029] Further, the stepped lens body 1 is close to horizontal with the adhesive tape 5 and the inner mirror surface on which the first light-transmitting film 3 is installed, so that the lens can be kept in a horizontal state after installation, avoiding affecting the detection effect of the laser radar due to improper installation angle. At the same time, such arrangement can also simplify the installation process and improve the installation efficiency.

[0030] Further, the vehicle-mounted laser radar protective lens can be coated with the first light-transmitting film 3 and the second light-transmitting film 4 at the same time, so that the light transmittance of the vehicle-mounted laser radar protective lens can be increased to 99%; or only the first light-transmitting film 3 can be coated on the inner mirror surface.

[0031] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A protective lens for vehicle-mounted lidar, characterized in that: It includes a stepped lens body (1) and a second light-transmitting film (4) coated on the front side of the stepped lens body (1). An adhesive strip (5) is attached to the back side of the stepped lens body (1). A side skirt (2) with a partition is provided between the adhesive strip (5) and the stepped lens body (1). A first light-transmitting film (3) is coated on the inner surface of the inner ring surrounding the side skirt (2).

2. The vehicle-mounted lidar protective lens according to claim 1, characterized in that: The material of the stepped lens body (1) is K9 or quartz, and the first light-transmitting film (3) and the second light-transmitting film (4) are both high-strength diamond-like carbon films.

3. The vehicle-mounted lidar protective lens according to claim 1, characterized in that: The stepped lens body (1) is nearly horizontal with the inner mirror surface on which the adhesive strip (5) and the first light-transmitting film (3) are installed.

4. The vehicle-mounted lidar protective lens according to claim 3, characterized in that: The adhesive strip (5) extends from the outermost side of the back of the stepped lens body (1) to the outermost side of the side skirt (2). The adhesive strip (5) is a high-strength adhesive and is covered with a non-adhesive protective film.

5. The vehicle-mounted lidar protective lens according to claim 4, characterized in that: The side skirt (2) is made of high-temperature resistant PVE material and is elastic.

6. The vehicle-mounted lidar protective lens according to claim 4, characterized in that: The height of the side skirt (2) is not less than the thickness of the rubber strip (5).

7. The vehicle-mounted lidar protective lens according to claim 1, characterized in that: The stepped lens body (1), the first light-transmitting film (3), and the second light-transmitting film (4) are all precision polished to reduce surface defects and scattering.

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