A lidar optical system

Abstract

This utility model relates to the field of lidar technology and discloses a lidar optical system, including a connecting sleeve, a lens fixing sleeve fitted onto the left end of the connecting sleeve, mounting grooves equally spaced on both sides of the lens fixing sleeve, a light source base at the right end of the connecting sleeve, and a lens at the left end of the lens fixing sleeve; it also includes a connecting mechanism, of which multiple sets are provided and respectively installed inside the mounting grooves. The connecting mechanism is used to fix the connecting sleeve and the lens to the left and right ends of the lens fixing sleeve, respectively. The lens includes a mounting base and an aperture, and the mounting base is embedded inside the left side of the lens fixing sleeve. This utility model, by utilizing the cooperation of retaining rings and retaining blocks, achieves rapid installation and disassembly of the connecting sleeve and the lens to the lens fixing sleeve, without the need for rotation, greatly improving the efficiency of installation and disassembly and reducing the time cost of maintenance and replacement of parts.

Description

Technical Field

[0001] This utility model relates to the field of lidar technology, and in particular to a lidar optical system. Background Technology

[0002] LiDAR (LiDAR) acquires three-dimensional information of the target space by emitting a laser beam towards a target area and receiving the laser echo beam reflected back from the target area, based on the time-of-flight of the laser beam. Due to its advantages such as high resolution, high measurement accuracy, and strong anti-interference capability, LiDAR is widely used in fields such as autonomous driving, becoming an indispensable sensor in these areas. The optical system of a LiDAR is its "eyes," and its quality directly affects the measurement accuracy and detection capability of the laser.

[0003] A lidar optical system includes a light source support mechanism, a lens fixing mechanism, and an aperture. Both the light source support mechanism and the lens fixing mechanism are hollow structures. The first end of the lens fixing mechanism is connected to the first end of the light source support mechanism. A laser light source is located at the second end of the light source support mechanism. The second end of the lens fixing mechanism is used to fix a collimating lens. The aperture is fixed behind the collimating lens. This invention provides a lidar optical system and lidar, utilizing the light source support mechanism to fix the light source, the lens fixing mechanism to fix the collimating lens, and the aperture to change the aperture of the light-passing hole. This allows it to be adapted to different environments and usage requirements. This invention has the advantages of simple structure, convenient assembly and disassembly, low cost, high efficiency, high resolution, flexibility, and high applicability.

[0004] In the aforementioned patents, the light source support mechanism and the lens fixing mechanism are often connected by threads. This connection method requires rotating the lens fixing mechanism one turn at a time during disassembly or assembly to separate or install the two parts, which is cumbersome and inefficient. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a laser radar optical system to solve the problems of low disassembly and assembly efficiency and cumbersome operation.

[0006] This utility model provides a lidar optical system, including a connecting sleeve, a lens fixing sleeve fitted onto the left end of the connecting sleeve, mounting grooves equally spaced on both the left and right sidewalls of the lens fixing sleeve, a light source base disposed at the right end of the connecting sleeve, and a lens disposed at the left end of the lens fixing sleeve; it also includes:

[0007] The connecting mechanism is provided in multiple sets and is installed inside the mounting slot. The connecting mechanism is used to fix the connecting sleeve and the lens to the left and right ends of the lens fixing sleeve, respectively.

[0008] Preferably, the lens includes a mounting base and an aperture stop. The mounting base is embedded inside the left side of the lens fixing sleeve. From right to left, the mounting base contains an inner protective lens, a collimating lens, a lens fixing plate, and an outer protective lens. The aperture stop is located between the lens fixing plate and the outer protective lens. Both the inner and outer protective lenses are fixedly connected to the inner wall of the mounting base.

[0009] Preferably, a laser light source is provided at the right end of the light source base, and the laser light source is fixedly connected to the light source base by screws.

[0010] Preferably, a retaining ring and a sealing ring are provided on the side wall of the connecting sleeve that is close to the center point of the lens fixing seat. The retaining rings are fixed on the side wall of the connecting sleeve and the mounting seat, and the sealing rings are sleeved on the outer wall of the connecting sleeve and the mounting seat.

[0011] Preferably, the connecting mechanism includes a lever and a locking block. The lever is rotatably connected inside the mounting groove, and the locking block is fixedly connected to the end of the lever away from the center point of the lens fixing sleeve. The locking block and the retaining ring engage with each other. A pressure block is slidably connected inside the mounting groove. The end of the pressure block near the axis of the lens fixing sleeve is rotatably connected to the end of the lever away from the locking block. A reserved groove is opened on the end face of the locking block away from the axis of the lens fixing sleeve. A spring is fixedly connected inside the reserved groove. The end of the spring away from the axis of the lens fixing sleeve is fixedly connected to the inner wall of the mounting groove.

[0012] Preferably, the right end of the connecting sleeve is retractably connected to the left end of the light source base via a thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model utilizes the cooperation of retaining rings and retaining blocks to achieve quick installation and disassembly between the connecting sleeve, lens and lens fixing sleeve, without the need for rotation around the lens, which greatly improves the efficiency of disassembly and assembly and reduces the time cost of maintenance and replacement of parts.

[0015] 2. This utility model ensures the stability of the optical system during operation by setting a retaining ring and a sealing ring between the connecting sleeve and the mounting base, and by designing a pressure block, spring and other structures. At the same time, it effectively prevents dust and impurities from entering the optical system, thereby improving the reliability and service life of the system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0017] Figure 2 This is an exploded view of the connecting sleeve, lens fixing sleeve, and lens structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall front view sectional structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0020] Numbering on the map:

[0021] 1. Connecting sleeve; 2. Lens fixing sleeve; 21. Mounting slot; 3. Lens; 31. Mounting base; 32. Inner protective lens; 33. Collimating lens; 34. Lens fixing clip; 35. Aperture; 36. Outer protective lens; 4. Light source base; 5. Laser light source; 6. Snap ring; 7. Sealing ring; 8. Connecting mechanism; 81. Lever; 811. Reserved slot; 82. Locking block; 83. Spring; 84. Pressure block. Detailed Implementation

[0022] To make the above-mentioned objectives, 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.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In this specification, "multiple" refers to two or more.

[0024] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0025] Example 1: Please refer to the accompanying drawings. This invention provides a technical solution:

[0026] A lidar optical system, such as Figure 1 , Figure 2 , Figure 3As shown, it includes a connecting sleeve 1, a lens fixing sleeve 2 fitted onto the left end of the connecting sleeve 1, mounting grooves 21 equally spaced on both the left and right side walls of the lens fixing sleeve 2, a light source base 4 disposed on the right end of the connecting sleeve 1, and a lens 3 disposed on the left end of the lens fixing sleeve 2; it also includes:

[0027] The connecting mechanism 8 is provided in multiple sets and is installed inside the mounting slot 21 respectively. The connecting mechanism 8 is used to fix the connecting sleeve 1 and the lens 3 to the left and right ends of the lens fixing sleeve 2 respectively.

[0028] The connecting sleeve 1, lens 3 and lens fixing sleeve 2 are connected by the connecting mechanism 8, which makes the connection more stable. At the same time, the lever 81 and the locking block 82 in the connecting mechanism 8 enable quick assembly and disassembly, avoiding the cumbersome operation of traditional threaded connections and greatly improving work efficiency.

[0029] like Figure 3 As shown, the lens 3 includes a mounting base 31 and an aperture 35. The mounting base 31 is embedded inside the left side of the lens fixing sleeve 2. From right to left, the mounting base 31 is provided with an inner protective lens 32, a collimating lens 33, a lens fixing plate 34, and an outer protective lens 36. The aperture 35 is located between the lens fixing plate 34 and the outer protective lens 36. The inner protective lens 32 and the outer protective lens 36 are both fixedly connected to the inner wall of the mounting base 31.

[0030] A laser light source 5 is provided at the right end of the light source base 4, and the laser light source 5 is fixedly connected to the light source base 4 by screws;

[0031] A retaining ring 6 and a sealing ring 7 are provided on the side wall of the connecting sleeve 1 and the mounting base 31 that is close to the center point of the lens fixing base. The retaining ring 6 is fixed on the side wall of the connecting sleeve 1 and the mounting base 31, and the sealing ring 7 is sleeved on the outer wall of the connecting sleeve 1 and the mounting base 31.

[0032] The optical components inside lens 3 are well protected, and the setting of aperture 35 can effectively control the light flux and improve image quality; the stable installation of laser source 5 ensures the accuracy of the emitted beam; and the combined use of retaining ring 6 and sealing ring 7 not only enhances the stability of the connection, but also improves the sealing performance of the system, effectively preventing dust and impurities from entering, thereby extending the service life of the optical system and ensuring its long-term stable operation.

[0033] Example 2: The structure of this example is basically the same as that of Example 1, except that, as shown in Example 2... Figure 4As shown, the connecting mechanism 8 includes a lever 81 and a locking block 82. The lever 81 is rotatably connected inside the mounting groove 21. The locking block 82 is fixedly connected to the end of the lever 81 away from the center point of the lens fixing sleeve 2. The locking block 82 and the retaining ring 6 are engaged with each other. A pressure block 84 is slidably connected inside the mounting groove 21. The end of the pressure block 84 near the axis of the lens fixing sleeve 2 is rotatably connected to the end of the lever 81 away from the locking block 82. A reserved groove 811 is opened on the end face of the locking block 82 away from the axis of the lens fixing sleeve 2. A spring 83 is fixedly connected inside the reserved groove 811. The end of the spring 83 away from the axis of the lens fixing sleeve 2 is fixedly connected to the inner wall of the mounting groove 21.

[0034] The right end of the connecting sleeve 1 is retractably connected to the left end of the light source base 4 via a thread.

[0035] The connecting mechanism 8 enables rapid installation and disassembly, offering simple and efficient operation. The elasticity of the spring 83 ensures a tight fit between the locking block 82 and the retaining ring 6, enhancing connection stability. Specifically, pressing multiple sets of pressure blocks 84 on the same side causes the pressure blocks 84 to rotate the lever 81. The rotating lever 81 then moves the locking block 82, disengaging it from the retaining ring 6, thus achieving rapid disassembly. For installation, it needs to be fitted inside the lens fixing sleeve 2, at which point the locking block 82 will re-engage with the retaining ring 6, achieving rapid installation. The retractable connection between the connecting sleeve 1 and the light source base 4 allows adjustment of their relative positions according to actual needs, further improving the system's flexibility and applicability.

[0036] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A lidar optical system, comprising a connecting sleeve (1), characterized in that, The left end of the connecting sleeve (1) is fitted with a lens fixing sleeve (2), and the left and right side walls of the lens fixing sleeve (2) are provided with mounting grooves (21) at equal intervals. The right end of the connecting sleeve (1) is provided with a light source base (4), and the left end of the lens fixing sleeve (2) is provided with a lens (3); it also includes: The connecting mechanism (8) is provided in multiple sets and is installed in the mounting slot (21) respectively. The connecting mechanism (8) is used to fix the connecting sleeve (1) and the lens (3) to the left and right ends of the lens fixing sleeve (2) respectively.

2. The lidar optical system according to claim 1, characterized in that, The lens (3) includes a mounting base (31) and an aperture (35). The mounting base (31) is embedded in the left side of the lens fixing sleeve (2). The mounting base (31) is provided with an inner protective lens (32), a collimating lens (33), a lens fixing plate (34), and an outer protective lens (36) from right to left. The aperture (35) is located between the lens fixing plate (34) and the outer protective lens (36). The inner protective lens (32) and the outer protective lens (36) are both fixedly connected to the inner wall of the mounting base (31).

3. The lidar optical system according to claim 1, characterized in that, A laser light source (5) is provided on the right end of the light source base (4), and the laser light source (5) is fixedly connected to the light source base (4) by screws.

4. The lidar optical system according to claim 1, characterized in that, A retaining ring (6) and a sealing ring (7) are provided on the side wall of the connecting sleeve (1) and the mounting base (31) close to the center point of the lens fixing seat. The retaining ring (6) is fixed on the side wall of the connecting sleeve (1) and the mounting base (31), and the sealing ring (7) is sleeved on the outer wall of the connecting sleeve (1) and the mounting base (31).

5. A lidar optical system according to claim 1, characterized in that, The connecting mechanism (8) includes a lever (81) and a locking block (82). The lever (81) is rotatably connected inside the mounting groove (21). The locking block (82) is fixedly connected to the end of the lever (81) away from the center point of the lens fixing sleeve (2). The locking block (82) and the retaining ring (6) engage with each other. A pressure block (84) is slidably connected inside the mounting groove (21). The end of the pressure block (84) near the axis of the lens fixing sleeve (2) is rotatably connected to the end of the lever (81) away from the locking block (82). A reserved groove (811) is opened on the end face of the locking block (82) away from the axis of the lens fixing sleeve (2). A spring (83) is fixedly connected inside the reserved groove (811). The end of the spring (83) away from the axis of the lens fixing sleeve (2) is fixedly connected to the inner wall of the mounting groove (21).

6. The lidar optical system according to claim 1, characterized in that, The right end of the connecting sleeve (1) is retractably connected to the left end of the light source base (4) via a thread.

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