Light-in component and lens module

Abstract

The utility model relates to a kind of light inlet assembly and lens module, including upper cover, light inlet cover, pedestal, curved mirror and plane mirror, the upper cover and the pedestal are respectively arranged at the both ends of the light inlet cover, to form reflection cavity by surrounding, the plane mirror and the curved mirror are located in the reflection cavity, the plane mirror is installed on the upper cover, the curved mirror is installed on the pedestal, the curved mirror is provided with the avoidance mouth in the middle, the pedestal is provided with light outlet, the light outlet is located at the avoidance mouth, the curved mirror and the plane mirror cooperate, to the light of the light inlet cover place incidence reflection to the light outlet;The light inlet assembly further includes first elastic member, the first elastic member is extruded between the upper cover and the light inlet cover.

Description

Technical Field

[0001] This utility model relates to the field of under-vehicle lenses, and in particular to a light-gathering component and lens module. Background Technology

[0002] To meet the growing demand for vehicle intelligence, the number of cameras installed on vehicles is constantly increasing. One type of vehicle camera is the under-vehicle camera, which is installed at the bottom of the vehicle to monitor the vehicle chassis and its surrounding environment, thereby limiting the occurrence of blind spots in under-vehicle monitoring.

[0003] The under-vehicle camera mainly consists of four parts: a light-intake cover, a base, a top cover, and a sensor assembly. The light-intake cover is installed between the base and the top cover, thus forming a reflective cavity. Light from the vicinity of the vehicle's underside passes through the light-intake cover into the reflective cavity, is reflected within the cavity, and finally exits to the sensor assembly to form an image. Because the under-vehicle camera is close to the ground, and the humidity near the ground is high, water vapor can easily enter the reflective cavity and cause fogging, reducing the image quality of the sensor assembly. Utility Model Content

[0004] Therefore, it is necessary to provide a light-gathering component and lens module to address the problem of low imaging quality of sensor components.

[0005] A light-gathering component includes a top cover, a light-gathering cover, a base, a curved mirror, and a plane mirror. The top cover and the base are respectively disposed at both ends of the light-gathering cover to form a reflective cavity. The plane mirror and the curved mirror are located inside the reflective cavity. The plane mirror is mounted on the top cover, and the curved mirror is mounted on the base. A clearance opening is provided in the middle of the curved mirror, and a light-exiting port is provided on the base. The light-exiting port is located at the clearance opening. The curved mirror and the plane mirror cooperate to reflect light incident at the light-gathering cover to the light-exiting port.

[0006] The light-gathering component also includes a first elastic element, which is pressed between the upper cover and the light-gathering cover.

[0007] In one embodiment, the top cover includes a cover plate portion, an inner ring portion, and an outer ring portion. The inner ring portion and the outer ring portion are fixed on the cover plate portion. The plane mirror is located in the middle of the inner ring portion. The outer ring portion is arranged around the outside of the inner ring portion and is spaced apart from the inner ring portion.

[0008] The light-gathering cover includes a first connecting portion, which is located between the inner ring portion and the outer ring portion. The first connecting portion is threadedly connected to the inner wall surface of the outer ring portion, and the first elastic element is pressed between the first connecting portion and the inner ring portion.

[0009] In one embodiment, the inner wall of the inner ring is recessed to form a plurality of reflective grooves.

[0010] In one embodiment, the cover plate portion, the inner ring portion, and the outer ring portion are an integral structure.

[0011] In one embodiment, the light-emitting cover is made of explosion-proof PC.

[0012] In one embodiment, the first elastic element is absorbent cotton.

[0013] A lens module includes a sensor assembly and a light-gathering assembly. The sensor assembly includes a rear housing and a sensor. The rear housing is located outside the reflective cavity and mounted on a base to form a receiving cavity with the base. The sensor is located inside the receiving cavity and is positioned towards the light-emitting port.

[0014] A light-gathering component includes a top cover, a light-gathering cover, a base, a curved mirror, and a plane mirror. The top cover and the base are respectively disposed at both ends of the light-gathering cover to form a reflective cavity. The plane mirror and the curved mirror are located inside the reflective cavity. The plane mirror is mounted on the top cover, and the curved mirror is mounted on the base. A clearance opening is provided in the middle of the curved mirror, and a light-exiting port is provided on the base. The light-exiting port is located at the clearance opening. The curved mirror and the plane mirror cooperate to reflect light incident at the light-gathering cover to the light-exiting port.

[0015] The light-gathering component also includes a second elastic element, which is pressed between the base and the light-gathering cover.

[0016] In one embodiment, the base is provided with a first slot, the light-gathering cover includes a second connecting part, the second connecting part is engaged in the first slot, and the second elastic member is pressed between the second connecting part and the side wall of the first slot.

[0017] In one embodiment, a second slot is provided on the base, and the edge of the curved mirror is engaged with the second slot.

[0018] In one embodiment, the second elastic element is absorbent cotton.

[0019] A lens module includes a sensor assembly and a light-gathering assembly. The sensor assembly includes a rear housing and a sensor. The rear housing is located outside the reflective cavity and mounted on a base to form a receiving cavity with the base. The sensor is located inside the receiving cavity and is positioned towards the light-emitting port.

[0020] The beneficial effects of this utility model are as follows:

[0021] In the first aspect of this utility model, the first elastic element has a certain elasticity, so it can effectively fill the gap between the top cover and the light-inlet cover. When the light-inlet cover is impacted, the buffering effect of the first elastic element can reduce structural damage at the connection between the top cover and the light-inlet cover, thereby reducing the generation of gaps between the top cover and the light-inlet cover. This allows the interior of the reflection cavity to maintain good sealing for a long time, restricting water vapor from entering the reflection cavity and suppressing the rise of humidity inside the reflection cavity.

[0022] In a second aspect of this utility model, the second elastic member has a certain elasticity, so it can effectively fill the gap between the base and the light-inlet cover. When the light-inlet cover is impacted, the buffering effect of the second elastic member can reduce structural damage at the connection between the base and the light-inlet cover, thereby reducing the generation of gaps between the base and the light-inlet cover. This allows the interior of the reflection cavity to maintain good sealing for a long time, restricting water vapor from entering the reflection cavity and suppressing the rise of humidity inside the reflection cavity.

[0023] The first elastic element and / or the second elastic element can limit the rise of humidity inside the reflection cavity based on their own elasticity, thereby improving the imaging quality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the lens module in an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional structural diagram of the lens module in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0028] Figure 5 This is a three-dimensional structural diagram of the upper cover in an embodiment of the present utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the light-gathering cover in an embodiment of the present invention;

[0030] Figure 7 This is a three-dimensional structural diagram of the base in an embodiment of the present utility model;

[0031] Figure 8 This is a three-dimensional structural diagram of the base after the curved mirror is assembled in an embodiment of this utility model.

[0032] Figure label:

[0033] 1. Top cover; 11. Cover plate; 12. Inner ring; 121. Reflective groove; 13. Outer ring; 2. Light inlet cover; 21. First connecting part; 22. Second connecting part; 23. Light-transmitting part; 3. Base; 31. Light outlet; 32. First slot; 33. Second slot; 4. Curved mirror; 41. Clearance opening; 5. Plane mirror; 6. Reflective cavity; 7. First elastic element; 8. Second elastic element; 100. Sensor assembly; 101. Back cover; 102. Sensor; 103. Receiving cavity. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] Example:

[0041] This embodiment provides a lens module, such as Figure 1 As shown, the lens module can be used as a vehicle under-body lens, specifically including a sensor assembly 100 and a light-intake assembly. The light-intake assembly includes an upper cover 1, a light-intake cover 2, and a base 3. The upper cover 1 and the base 3 are respectively disposed at both ends of the light-intake cover 2, and the sensor assembly 100 is mounted on the base 3 and located on the side of the base 3 away from the light-intake cover 2.

[0042] Specifically, such as Figure 2 As shown, the upper cover 1, the light-gathering cover 2, and the base 3 enclose and form a reflecting cavity 6. Furthermore, the light-gathering assembly includes a curved mirror 4 and a plane mirror 5, both located within the reflecting cavity 6. The plane mirror 5 is mounted on the upper cover 1, and the curved mirror 4 is mounted on the base 3. Further integration... Figure 7 and Figure 8As shown, the curved mirror 4 has a clearance opening 41 in the middle, and the base 3 has a light outlet 31. The light outlet 31 is located at the clearance opening 41 to prevent the light outlet 31 from being blocked by the curved mirror 4.

[0043] See you again Figure 2 The sensor assembly 100 includes a rear housing 101 and a sensor 102. The rear housing 101 is located outside the reflective cavity 6 and is mounted on the base 3, thereby forming a receiving cavity 103 with the base 3. The sensor 102 is located inside the receiving cavity 103 and is positioned facing the light outlet 31.

[0044] The working principle of the above-mentioned lens module is as follows: the light carrying the surrounding environment information on the outside of the reflective cavity 6 can pass through the light inlet cover 2 into the reflective cavity 6, and then be reflected by the curved mirror 4 and the plane mirror 5 to reach the light outlet 31 for emission, and finally enter the receiving cavity 103 to be detected by the sensor 102 and imaged.

[0045] The above-described structure and related working principles are existing technologies, and will not be further elaborated in this embodiment.

[0046] The study in this embodiment revealed that when the lens module is used as a vehicle under-body lens, moisture easily enters the reflective cavity 6 because, as the vehicle travels a greater distance, the sealing between the upper cover 1 and the light-intake cover 2, as well as the sealing between the base 3 and the light-intake cover 2, gradually decreases. The main reason for this decrease in sealing is that flying stones generated during vehicle travel impact the light-intake cover 2, causing gaps at the connection points between the upper cover 1 and the light-intake cover 2, and between the base 3 and the light-intake cover 2. Moisture will then enter the reflective cavity 6 through these gaps and cause fogging, ultimately reducing the imaging quality of the sensor 102.

[0047] To solve the above problems, the light-gathering component in this embodiment also includes a first elastic member 7 and a second elastic member 8. The first elastic member 7 is pressed between the upper cover 1 and the light-gathering cover 2, and the second elastic member 8 is pressed between the base 3 and the light-gathering cover 2.

[0048] The first elastic element 7 and the second elastic element 8 possess a certain degree of elasticity. Therefore, the first elastic element 7 can effectively fill the gap between the upper cover 1 and the light-inlet mask 2, and the second elastic element 8 can effectively fill the gap between the base 3 and the light-inlet mask 2. When the light-inlet mask 2 is impacted, both the first elastic element 7 and the second elastic element 8 can buffer the impact force. The buffering effect of the first elastic element 7 can reduce structural damage at the connection between the upper cover 1 and the light-inlet mask 2, thereby reducing the generation of gaps between the upper cover 1 and the light-inlet mask 2. The buffering effect of the second elastic element 8 can reduce structural damage at the connection between the base 3 and the light-inlet mask 2, thereby reducing the generation of gaps between the base 3 and the light-inlet mask 2. In other words, based on the buffering effect of the first elastic element 7 and the second elastic element 8, the interior of the reflection cavity 6 can maintain good sealing for a long time, thereby limiting water vapor from entering the reflection cavity 6 and suppressing the rise of humidity inside the reflection cavity 6, thus achieving the purpose of improving imaging quality.

[0049] Preferably, in this embodiment, at least one of the first elastic element 7 and the second elastic element 8 can be moisture-absorbing cotton. Thus, at least one of the first elastic element 7 and the second elastic element 8 possesses water-absorbing properties. Based on their own water-absorbing properties, the first elastic element 7 and / or the second elastic element 8 can also absorb existing moisture inside the reflective cavity 6, further reducing the humidity inside the reflective cavity 6.

[0050] In summary, the first elastic element 7 and the second elastic element 8 in this embodiment can limit the increase of humidity inside the reflective cavity 6 based on their own elasticity, and can reduce the humidity inside the reflective cavity 6 based on their own water absorption. They can effectively limit the humidity inside the reflective cavity 6 and suppress the generation of fog inside the reflective cavity 6 from two aspects, and ultimately improve the imaging quality at the sensor 102.

[0051] In some other embodiments, only one of the first elastic element 7 and the second elastic element 8 may be provided.

[0052] For example, such as Figure 2 and Figure 5 As shown, the upper cover 1 includes a cover plate portion 11, an inner ring portion 12, and an outer ring portion 13. The cover plate portion 11 is flat, and the inner ring portion 12 and the outer ring portion 13 are generally annular. The inner ring portion 12 and the outer ring portion 13 are fixed to the cover plate portion 11. To reduce assembly steps, the cover plate portion 11, the inner ring portion 12, and the outer ring portion 13 can be an integral structure. The plane mirror 5, the inner ring portion 12, and the outer ring portion 13 are located on the same surface of the cover plate portion 11. The plane mirror 5 is located in the middle of the inner ring portion 12, and the outer ring portion 13 is arranged around the outer side of the inner ring portion 12 at intervals.

[0053] like Figure 2 and Figure 6As shown, the light-emitting cover 2 includes a first connecting portion 21, a second connecting portion 22, and a light-transmitting portion 23. The light-transmitting portion 23 is generally tubular, and the first connecting portion 21 and the second connecting portion 22 are respectively fixed to both ends of the light-transmitting portion 23. Similarly, to reduce assembly steps, the first connecting portion 21, the second connecting portion 22, and the light-transmitting portion 23 can be a single integrated structure. To reduce damage to the light-emitting cover 2 from flying stones, the material of the light-emitting cover 2 can be explosion-proof PC.

[0054] See details Figure 2 and Figure 3 The first connecting part 21 is located between the inner ring part 12 and the outer ring part 13. The inner wall surface of the outer ring part 13 is provided with an internal thread, and the first connecting part 21 is provided with an external thread, so that the first connecting part 21 and the inner wall surface of the outer ring part 13 can be threadedly connected. The first elastic member 7 is pressed between the first connecting part 21 and the inner ring part 12.

[0055] Preferably, in this embodiment, the inner wall of the inner ring portion 12 is concave to form a plurality of reflective grooves 121. After stray light undergoes multiple reflections inside the reflective grooves 121, its energy will be significantly attenuated. Therefore, the reflective grooves 121 can eliminate or reduce stray light.

[0056] See details Figure 2 and Figure 4 The base 3 is provided with a first slot 32 and a second slot 33. The second connecting part 22 is engaged in the first slot 32, and the second elastic member 8 is pressed between the side wall of the second connecting part 22 and the first slot 32. The edge of the curved mirror 4 is engaged in the second slot 33.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A light-gathering assembly, comprising an upper cover (1), a light-gathering hood (2), a base (3), a curved mirror (4), and a plane mirror (5), wherein the upper cover (1) and the base (3) are respectively disposed at both ends of the light-gathering hood (2) to form a reflective cavity (6), the plane mirror (5) and the curved mirror (4) are located inside the reflective cavity (6), the plane mirror (5) is mounted on the upper cover (1), the curved mirror (4) is mounted on the base (3), a clearance opening (41) is provided in the middle of the curved mirror (4), and a light-emission port (31) is provided on the base (3), the light-emission port (31) is located at the clearance opening (41), and the curved mirror (4) and the plane mirror (5) cooperate to reflect the light incident at the light-gathering hood (2) to the light-emission port (31). Its features are, The light-gathering component also includes a first elastic element (7), which is pressed between the upper cover (1) and the light-gathering cover (2).

2. The light-gathering component according to claim 1, characterized in that, The upper cover (1) includes a cover plate (11), an inner ring (12) and an outer ring (13). The inner ring (12) and the outer ring (13) are fixed on the cover plate (11). The plane mirror (5) is located in the middle of the inner ring (12). The outer ring (13) is arranged around the outer side of the inner ring (12) and is spaced apart from the inner ring (12). The light-gathering cover (2) includes a first connecting part (21), which is located between the inner ring part (12) and the outer ring part (13). The first connecting part (21) is threadedly connected to the inner wall surface of the outer ring part (13), and the first elastic element (7) is pressed between the first connecting part (21) and the inner ring part (12).

3. The light-gathering component according to claim 2, characterized in that, The inner wall of the inner ring (12) is recessed to form a plurality of reflective grooves (121).

4. The light-gathering component according to claim 2, characterized in that, The cover plate (11), the inner ring (12), and the outer ring (13) are an integral structure.

5. The light-gathering component according to claim 1, characterized in that, The material of the light-sensing cover (2) is explosion-proof PC.

6. The light-gathering component according to claim 1, characterized in that, The first elastic element (7) is absorbent cotton.

7. A lens module, characterized in that, The device includes a sensor assembly (100) and a light-gathering assembly as claimed in any one of claims 1-6. The sensor assembly (100) includes a rear housing (101) and a sensor (102). The rear housing (101) is located outside the reflective cavity (6) and mounted on a base (3) to form a receiving cavity (103) with the base (3). The sensor (102) is located inside the receiving cavity (103) and is disposed toward the light-emitting port (31).

8. A light-gathering component, comprising an upper cover (1), a light-gathering hood (2), a base (3), a curved mirror (4), and a plane mirror (5), wherein the upper cover (1) and the base (3) are respectively disposed at both ends of the light-gathering hood (2) to form a reflective cavity (6), the plane mirror (5) and the curved mirror (4) are located inside the reflective cavity (6), the plane mirror (5) is mounted on the upper cover (1), the curved mirror (4) is mounted on the base (3), a clearance opening (41) is provided in the middle of the curved mirror (4), and a light-emission port (31) is provided on the base (3), the light-emission port (31) is located at the clearance opening (41), and the curved mirror (4) and the plane mirror (5) cooperate to reflect the light incident at the light-gathering hood (2) to the light-emission port (31). Its features are, The light-gathering component also includes a second elastic element (8), which is pressed between the base (3) and the light-gathering cover (2).

9. The light-gathering component according to claim 8, characterized in that, The base (3) is provided with a first slot (32), and the light-gathering cover (2) includes a second connecting part (22). The second connecting part (22) is engaged in the first slot (32), and the second elastic member (8) is pressed between the second connecting part (22) and the side wall of the first slot (32).

10. The light-gathering component according to claim 8, characterized in that, The base (3) is provided with a second slot (33), and the edge of the curved mirror (4) is engaged in the second slot (33).

11. The light-gathering component according to claim 8, characterized in that, The second elastic element (8) is absorbent cotton.

12. A lens module, characterized in that, The device includes a sensor assembly (100) and a light-gathering assembly as claimed in any one of claims 8-11. The sensor assembly (100) includes a rear housing (101) and a sensor (102). The rear housing (101) is located outside the reflective cavity (6) and mounted on the base (3) to form a receiving cavity (103) with the base (3). The sensor (102) is located inside the receiving cavity (103) and is disposed toward the light-emitting port (31).

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