Lens, camera module and automobile

Abstract

The utility model discloses a lens, a camera module and an automobile, and the lens comprises a lens barrel which comprises an inner wall and an accommodation groove formed by the inner wall; the first lens is arranged in the containing groove and abuts against the inner wall, the first lens comprises an object side face and an image side face, and a first inclined face is formed in the position, close to the inner wall, of the object side face; the screw cap is connected to the lens barrel and abuts against the object side surface. The screw cap is used for locking the first lens in the lens barrel. The waterproof ring is arranged in a limiting groove defined by the inner wall, the first inclined face and the screw cap, and the waterproof ring is used for sealing a gap between the screw cap and the first lens. With the adoption of the optical lens, the waterproof ring can be conveniently pressed on the first lens by the screw cap; and meanwhile, the waterproof ring can seal a gap between the screw cap and the first lens, so that water vapor or dust is prevented from entering the lens.

Description

Technical Field

[0001] The utility model relates to the technical field of imaging, in particular to a lens, an imaging module and an automobile. Background Art

[0002] With the popularization of automobile automation and intelligence, the requirement for the image clarity of in-vehicle lenses is getting higher and higher. In the automated driving technology of automobiles, in-vehicle lenses, as the eyes of automobiles, should not be blurred during application, otherwise program judgment errors will occur, and in severe cases, it may even lead to vehicle damage and casualties. During the use of in-vehicle lenses, water mist or water droplets will appear on the inner end surface of the lens, making the captured image blurred and seriously affecting driving safety.

[0003] At present, most in-vehicle lenses on the market use sealing to prevent water vapor or fog from appearing inside the lens. However, the installation of the waterproof structure is relatively cumbersome and the installation structure is complex, which cannot meet the needs of mass-produced products. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. The utility model provides a lens, which is characterized in that it includes: a lens barrel, the lens barrel includes an inner wall and a receiving groove formed by the inner wall; a first lens, disposed in the receiving groove and in contact with the inner wall, the first lens includes an object side and an image side, and a first inclined surface is formed at a position where the object side is close to the inner wall;

[0005] A rotary cover, connected to the lens barrel and in contact with the object side, the rotary cover is used to lock the first lens in the receiving groove;

[0006] A waterproof ring, disposed in a limiting groove formed by the inner wall, the first inclined surface and the rotary cover, the waterproof ring is used to seal the gap between the rotary cover and the first lens.

[0007] Further preferably, the first inclined surface is disposed close to the image side and abuts against the waterproof ring.

[0008] On the basis of the above solution, the angle A between the first inclined surface and the optical axis of the lens satisfies: 20° ≤ A ≤ 80°.

[0009] On the basis of the above solution, the angle A between the first inclined surface and the optical axis of the lens is 45°.

[0010] Further preferably, the lens further includes a heating sheet, and the heating sheet is connected to the image side of the first lens.

[0011] Further preferably, a bearing portion is formed in the lens barrel, and the heating sheet is disposed on the bearing portion.

[0012] Further preferably, the rotary cover includes a front end portion, the front end portion abuts against the object side surface, and the front end portion is provided with a boss facing the first inclined surface, and the boss abuts against the waterproof ring.

[0013] Further preferably, the lens barrel further comprises an outer wall, and the screw cap is connected to the outer wall via threads.

[0014] The present application also provides a camera module, comprising the above-mentioned lens.

[0015] The present application also provides a car, comprising the above-mentioned camera module.

[0016] Compared with the prior art, the utility model has the following beneficial effects: (1) The inner wall of the lens barrel, the first inclined surface of the first lens and the screw cap together form a limiting groove, which is convenient for assembling and limiting the waterproof ring, and convenient for the screw cap to press the waterproof ring onto the lens; at the same time, the waterproof ring can seal the gap between the screw cap and the first lens to prevent water vapor or dust from entering the interior of the lens. (2) During assembly, the first inclined surface of the first lens and the inner wall of the lens barrel are used to preliminarily position and install the waterproof ring, which makes it easier to assemble the screw cap, thereby improving assembly efficiency. At the same time, the screw cap can better clamp the waterproof ring and the first lens when tightened. (3) The addition of the heating plate is beneficial to defrosting and defogging the first lens, and at the same time, the screw cap and the waterproof ring can better clamp the heating plate, that is, the heating plate can be closely attached to the image side of the first lens, ensuring that the heating plate can better perform defrosting and defogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An exploded schematic diagram of the lens provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of the lens provided by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point B in .

[0020] Wherein, the reference numerals in the accompanying drawings are as follows:

[0021] 1-lens barrel; 11-inner wall; 12-accommodating groove; 13-bearing part; outer wall-14;

[0022] 2-first lens; 21-object side; 211-first inclined plane; 22-image side;

[0023] 3-screw cap; 31-front end; 311-boss;

[0024] 4- Waterproof ring;

[0025] 5-limiting slot;

[0026] 6 - Heating sheet. Specific embodiments

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Please refer to Figures 1 - 3 As shown, in this specific embodiment, a lens is characterized by comprising:

[0031] The lens barrel 1, the lens barrel 1 includes an inner wall 11 and a receiving groove 12 formed by the inner wall 11; a first lens 2, disposed in the receiving groove 12 and abutting against the inner wall 11, the first lens 2 includes an object side 21 and an image side 22, and a first inclined surface 211 is formed at a position where the object side 21 is close to the inner wall 11; a rotary cover 3, connected to the lens barrel 1 and abutting against the object side 21, the rotary cover 3 is used to lock the first lens 2 in the receiving groove 12; a waterproof ring 4, disposed in a limiting groove 5 formed by enclosing the inner wall 11, the first inclined surface 211 and the rotary cover 3, and the waterproof ring 4 is used to seal the gap between the rotary cover 3 and the first lens 2. The limiting groove 5 is formed by enclosing the inner wall 11 of the lens barrel 1, the first inclined surface 211 of the first lens 2 and the rotary cover 3, which is convenient for the assembly and positioning of the waterproof ring 4, and is convenient for the rotary cover 3 to press the waterproof ring 4 against the first lens 2; at the same time, the waterproof ring 4 can seal the gap between the rotary cover 3 and the first lens 2 to prevent moisture or dust from entering the lens interior. During assembly, the first inclined surface 211 of the first lens 2 and the inner wall 11 of the lens barrel 1 first perform preliminary positioning and installation on the waterproof ring 4, which is convenient for the assembly of the rotary cover 3 and the lens barrel 1, improves the assembly efficiency, and also enables the rotary cover 3 to better clamp the waterproof ring 4 and the first lens 2 when tightened.

[0032] In an embodiment, the first inclined surface 211 is disposed close to the image side 22 and abuts against the waterproof ring 4. It can be understood that the first inclined surface 211 is disposed close to the image side 22 of the first lens 2, that is, the object side 21 of the first lens 2 is concave toward the image side 22 at a position close to the lens barrel 1, which is equivalent to forming a concave structure on the periphery of the first lens 2, facilitating the positioning and installation of the waterproof ring 4, and can also reduce the size of the lens 1 to meet the requirements of lens miniaturization.

[0033] On the basis of the above solution, the angle A between the first inclined surface 211 and the lens optical axis O satisfies: 20° ≤ A ≤ 80°. By controlling the size of the angle A between the first inclined surface 211 and the lens optical axis O, it is convenient for the processing of the first lens 2 to meet the actual production needs. Among them, for the convenience of understanding the technical solution of the present application, the lens optical axis O is shown by a dotted line O in Figure 1 and Figure 2 in a dotted line O.

[0034] Preferably, the angle A between the first inclined surface 211 and the lens optical axis is 45°. The angle A is 45°, which is convenient for better accommodating the waterproof ring 4, and can also increase the contact area between the waterproof ring 4 and the lens barrel 1, enabling the rotary cover 3 to better press the waterproof ring 4.

[0035] In one embodiment, the lens further includes a heating sheet 6, and the heating sheet 6 is connected to the image side 22 of the first lens 2. The addition of the heating sheet 6 is beneficial to defrosting and defogging of the first lens 2. At the same time, the rotary cover 3 and the waterproof ring 4 can better clamp the heating sheet 6, that is, the heating sheet 6 can be closely attached to the image side 22 of the first lens 2, ensuring that the heating sheet 6 can better perform defrosting and defogging.

[0036] Based on the above solution, a bearing portion 13 is formed in the lens barrel 1, and the heating sheet 6 is disposed on the bearing portion 13. A bearing portion 13 is provided inside the lens barrel 1 for bearing the heating sheet 6, which facilitates the precise positioning and installation of the heating sheet 6 into the lens barrel 1 and improves the assembly efficiency.

[0037] In one embodiment, the rotary cover 3 includes a front end portion 31, the front end portion 31 abuts against the object side 21, and a boss 311 is provided on the front end portion 31 facing the first inclined surface 211, and the boss 311 abuts against the waterproof ring 4. Among them, the boss 311 can be understood as a convex structure provided on the rotary cover 3 facing the first inclined surface 211 of the first lens 2. The setting of the boss 311 facilitates the rotary cover to press the waterproof ring 4 tightly. Considering that the waterproof ring 4 is clamped between the rotary cover 3 and the first lens 2, and the heating sheet 6 is connected to the image side 22 of the first lens 2, when the boss 311 on the rotary cover 3 presses the first inclined surface 211 of the first lens 2, it also equivalently presses the first lens 2 tightly against the heating sheet 6, ensuring that the heating sheet 6 can better perform defrosting and defogging on the first lens 2.

[0038] In one embodiment, the lens barrel 1 further includes an outer wall 14, and the rotary cover 3 is threadedly connected to the outer wall 14. The threaded connection between the rotary cover 3 and the lens barrel 1 ensures the connection stability between the two.

[0039] The present application also provides an imaging module, which includes the lens in any of the above embodiments, and an image sensor chip. The image sensor chip is disposed directly below the lens along the optical axis O of the lens to receive light from the lens and perform imaging. The above lens is provided on the imaging module to ensure that the imaging of the imaging module is not affected by water vapor and fog, meeting the high imaging requirements.

[0040] The present application also provides an automobile, which includes the imaging module in the above embodiment. The above imaging module is provided on the automobile to prevent the on-vehicle imaging module from being affected by water vapor and fog during use, improving the imaging quality and enhancing driving safety.

[0041] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improvement concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A lens, characterized in that, Comprising: A lens barrel (1), the lens barrel (1) comprising an inner wall (11) and a receiving groove (12) formed by the inner wall (11); A first lens (2), disposed in the receiving groove (12) and in contact with the inner wall (11), the first lens (2) comprising an object side (21) and an image side (22), and a first inclined surface (211) being formed at a position where the object side (21) is close to the inner wall (11); A rotary cover (3), connected to the lens barrel (1) and in contact with the object side (21), the rotary cover (3) being used for locking the first lens (2) in the receiving groove (12); A waterproof ring (4), disposed in a limiting groove (5) formed by enclosing the inner wall (11), the first inclined surface (211), and the rotary cover (3), the waterproof ring (4) being used for sealing a gap between the rotary cover (3) and the first lens (2).

2. The lens according to claim 1, wherein The first inclined surface (211) is disposed close to the image side (22) and abuts against the waterproof ring (4).

3. The lens according to claim 2, wherein, The included angle A between the first inclined surface (211) and the optical axis of the lens satisfies: 20° ≤ A ≤ 80°.

4. The lens according to claim 3, characterized in that, The included angle A between the first inclined surface (211) and the optical axis of the lens is 45°.

5. The lens according to claim 1, wherein The lens further comprises a heating sheet (6), the heating sheet (6) being connected to the image side (22) of the first lens (2).

6. The lens according to claim 5, characterized in that, A bearing portion (13) is formed in the lens barrel (1), and the heating sheet (6) is disposed on the bearing portion (13).

7. The lens according to claim 1, characterized in that, The rotary cover (3) comprises a front end portion (31), the front end portion (31) abuts against the object side (21), and a boss (311) is disposed on the front end portion (31) facing the first inclined surface (211), the boss (311) abutting against the waterproof ring (4).

8. The lens according to claim 1, wherein The lens barrel (1) further comprises an outer wall (14), and the rotary cover (3) is threadedly connected to the outer wall (14).

9. An imaging module, characterized in that, Comprising the lens according to any one of claims 1 to 8.

10. A vehicle, characterized in that, Comprising the imaging module according to claim 9.

Images