A laser ranging module
By introducing a fine-tuning structure for the lens and support into the laser ranging module, the problem of inaccurate optical axis focusing in the existing technology is solved, and precise focus adjustment and distance measurement are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WEIRUI JINGKE ELECTRONICS
- Filing Date
- 2025-04-03
- Publication Date
- 2026-06-02
AI Technical Summary
Existing laser ranging modules fail to accurately adjust the optical axis direction during focusing, resulting in inaccurate distance measurements.
By using the fine-tuning structures of the transmitting and receiving lenses, and the adjustment structures of the transmitting and receiving supports, the relative positions of the transmitting and receiving lenses and the receiving elements, as well as the adjustment of the transmitting and receiving optical axes, can be finely adjusted to ensure precise focal length adjustment.
Precise focusing of the laser ranging module was achieved, improving the accuracy of distance measurement.
Smart Images
Figure CN224317783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ranging sensor technology, and in particular to a laser ranging module. Background Technology
[0002] A laser ranging module determines the distance to a target by measuring the time required for the laser to travel to and from the target. Existing laser ranging modules only undergo coarse focusing along the optical axis before leaving the factory; they lack a structure for fine-tuning along the optical axis and do not adjust the optical axis itself. Therefore, existing laser ranging modules suffer from inaccurate focusing, which affects the accuracy of distance measurements during subsequent use. Utility Model Content
[0003] The purpose of this invention is to provide a laser ranging module that uses multiple structures to adjust the focal length and ensure accurate focusing.
[0004] To achieve the above objectives, this utility model provides the following solution:
[0005] This utility model provides a laser ranging module, including: a core, a transmitting lens, a receiving lens, a transmitting bracket, a receiving bracket, a main board, a transmitting board, and a receiving board; the transmitting lens, the receiving lens, the transmitting bracket, the receiving bracket, and the main board are all disposed on the core;
[0006] The mechanism is provided with a transmission channel and a receiving channel. The transmitting lens, the transmitting bracket, and the transmitting element of the transmitting plate are all arranged corresponding to the transmission channel. The receiving lens, the receiving bracket, and the receiving element of the receiving plate are all arranged corresponding to the receiving channel. The transmitting plate and the receiving plate are both connected to the main board.
[0007] The transmitting lens adjusts the relative position of the transmitting lens and the transmitting element through the transmitting lens fine-tuning structure, and the receiving lens adjusts the relative position of the receiving lens and the receiving element through the receiving lens fine-tuning structure;
[0008] One end of the transmitting bracket extends into the transmitting channel, and one end of the receiving bracket extends into the receiving channel. The transmitting bracket adjusts the relative position of the transmitting bracket and the transmitting channel through the transmitting bracket adjustment structure to adjust the transmitting optical axis. The receiving bracket adjusts the relative position of the receiving bracket and the receiving channel through the receiving bracket adjustment structure to adjust the receiving optical axis.
[0009] Preferably, the transmitting lens fine-tuning structure and the receiving lens fine-tuning structure have the same structure. Both the transmitting lens fine-tuning structure and the receiving lens fine-tuning structure include an outer pressure ring and an inner waterproof ring. The transmitting lens is located between the outer pressure ring and the inner waterproof ring of the transmitting lens fine-tuning structure, and the receiving lens is located between the outer pressure ring and the inner waterproof ring of the receiving lens fine-tuning structure. The outer pressure ring of the transmitting lens fine-tuning structure is threadedly connected to the transmitting channel, and the outer pressure ring of the receiving lens fine-tuning structure is threadedly connected to the receiving channel. The inner waterproof ring is made of an elastic material. A first step is provided in both the transmitting channel and the receiving channel, and the inner waterproof ring is disposed on the first step. The distance between the transmitting lens and the transmitting element is adjusted by adjusting the pressure applied by the outer pressure ring of the transmitting lens fine-tuning structure to the inner waterproof ring of the transmitting lens fine-tuning structure. Similarly, the distance between the receiving lens and the receiving element is adjusted by adjusting the pressure applied by the outer pressure ring of the receiving lens fine-tuning structure to the inner waterproof ring of the receiving lens fine-tuning structure.
[0010] Preferably, a first lens is provided in the transmitting channel, and a second lens is provided in the receiving channel.
[0011] Preferably, both the transmitting channel and the receiving channel are provided with a second step and an inner pressure ring of the mechanism. The inner pressure ring of the mechanism in the transmitting channel is threadedly connected to the transmitting channel. The first lens is located between the second step of the transmitting channel and the inner pressure ring of the mechanism in the transmitting channel. The inner pressure ring of the mechanism in the receiving channel is threadedly connected to the receiving channel. The second lens is located between the second step of the receiving channel and the inner pressure ring of the mechanism in the receiving channel.
[0012] Preferably, the transmitting bracket adjustment structure and the receiving bracket adjustment structure have the same structure. Both the transmitting bracket adjustment structure and the receiving bracket adjustment structure include at least two radial adjustment components. The radial adjustment component of the transmitting bracket adjustment structure is threadedly connected to the transmitting channel, and the radial adjustment component of the receiving bracket adjustment structure is threadedly connected to the receiving channel. One end of the radial adjustment component of the transmitting bracket adjustment structure extends into the transmitting channel and contacts the transmitting bracket, and one end of the radial adjustment component of the receiving bracket adjustment structure extends into the receiving channel and contacts the receiving bracket.
[0013] Preferably, there are at least three radial adjustment components, and the at least three radial adjustment components of the transmitting bracket adjustment structure are evenly distributed around the circumference of the transmitting channel, and the at least three radial adjustment components of the receiving bracket adjustment structure are evenly distributed around the circumference of the receiving channel.
[0014] Preferably, the mechanism is provided with a transmitter bracket clamping structure and a receiver bracket clamping structure; the transmitter bracket can pass through the transmitter bracket clamping structure and extend into the transmitter channel, and the position of the transmitter bracket is clamped by the transmitter bracket clamping structure to adjust the length of the transmitter bracket extending into the transmitter channel; the receiver bracket can pass through the receiver bracket clamping structure and extend into the receiver channel, and the position of the receiver bracket is clamped by the receiver bracket clamping structure to adjust the length of the receiver bracket extending into the receiver channel.
[0015] Preferably, the transmitter plate adjusts the relative position of the transmitting element and the transmitting lens on the transmitter plate through a transmitter plate fine-tuning structure, and the receiver plate adjusts the relative position of the receiving element and the receiving lens on the receiver plate through a receiver plate fine-tuning structure;
[0016] The transmitter plate fine-tuning structure and the receiver plate fine-tuning structure have the same structure, and both the transmitter plate fine-tuning structure and the receiver plate fine-tuning structure include an axial adjustment component; the transmitter bracket and the transmitter plate are both threadedly connected to the axial adjustment component of the transmitter plate fine-tuning structure, and the receiver bracket and the receiver plate are both threadedly connected to the axial adjustment component of the receiver plate fine-tuning structure.
[0017] Preferably, the transmitting bracket has a transmitting bracket channel, and a third lens is disposed within the transmitting bracket channel; the receiving bracket has a receiving bracket channel, and a fourth lens is disposed within the receiving bracket channel.
[0018] Preferably, both the transmitting bracket channel and the receiving bracket channel are provided with a third step and an inner pressure ring. The inner pressure ring in the transmitting bracket channel is threadedly connected to the transmitting bracket channel. The third lens is located between the third step in the transmitting bracket channel and the inner pressure ring in the transmitting bracket channel. The inner pressure ring in the receiving bracket channel is threadedly connected to the receiving bracket channel. The fourth lens is located between the third step in the receiving bracket channel and the inner pressure ring in the receiving bracket channel.
[0019] The present invention achieves the following technical advantages over the prior art:
[0020] This invention achieves fine-tuning of the relative positions of the transmitting lens and the transmitting element through a fine-tuning structure, and the receiving lens achieves fine-tuning of the relative positions of the receiving lens and the receiving element through a fine-tuning structure. The transmitting bracket adjusts the relative positions of the transmitting bracket and the transmitting channel through an adjusting structure, thereby adjusting the transmitting optical axis. Similarly, the receiving bracket adjusts the relative positions of the receiving bracket and the receiving channel through an adjusting structure, thereby adjusting the receiving optical axis. This invention achieves precise focusing through fine-tuning of the relative positions of the transmitting lens and the transmitting element, the receiving lens and the receiving element, and the transmitting and receiving optical axes. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 Axonometric measurement of the laser ranging module in some embodiments of this utility model Figure 1 ;
[0023] Figure 2 Axonometric measurement of the laser ranging module in some embodiments of this utility model Figure 2 ;
[0024] Figure 3 This is an exploded view of the laser ranging module in some embodiments of this utility model;
[0025] Figure 4 This is a front view of the laser ranging module in some embodiments of the present invention;
[0026] Figure 5 This is a side view of the laser ranging module in some embodiments of the present invention;
[0027] Figure 6 This is a top view of the laser ranging module in some embodiments of the present invention;
[0028] Figure 7 This is a bottom view of the laser ranging module in some embodiments of the present invention;
[0029] Figure 8 This is a schematic diagram of the mechanism, transmitting bracket, and receiving bracket in some embodiments of the present invention;
[0030] Figure 9Exploded views of the mechanism, transmitting bracket, and receiving bracket in some embodiments of this utility model;
[0031] Figure 10 This is a schematic diagram of the launch bracket and radial adjustment component in some embodiments of the present invention;
[0032] In the diagram: 100-Laser ranging module, 1-Mechanical core, 2-Emitting lens, 3-Receiving lens, 4-Emitting bracket, 5-Receiving bracket, 6-Main board, 7-Emitting board, 8-Receiving board, 9-Outer pressure ring, 10-Inner waterproof ring, 11-First lens, 12-Second lens, 13-Mechanical core inner pressure ring, 14-Radial adjustment component, 15-Emitting bracket clamping structure, 16-Receiving bracket clamping structure, 17-Axial adjustment component, 18-Third lens, 19-Fourth lens, 20-Bracket inner pressure ring. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] The purpose of this invention is to provide a laser ranging module that uses multiple structures to adjust the focal length and ensure accurate focusing.
[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0036] like Figures 1 to 10As shown, this embodiment provides a laser ranging module 100, including: a core 1, a transmitting lens 2, a receiving lens 3, a transmitting bracket 4, a receiving bracket 5, a main board 6, a transmitting plate 7, and a receiving plate 8; the transmitting lens 2, the receiving lens 3, the transmitting bracket 4, the receiving bracket 5, and the main board 6 are all mounted on the core 1; the transmitting lens 2 and the receiving lens 3 are both convex lenses; the core 1 is provided with a transmitting channel and a receiving channel, which are parallel and arranged side by side; the transmitting elements of the transmitting lens 2, the transmitting bracket 4, and the transmitting plate 7 are all arranged corresponding to the transmitting channels; the receiving elements of the receiving lens 3, the receiving bracket 5, and the receiving plate 8 are all arranged corresponding to the receiving channels; the transmitting element is preferably a laser diode, and the receiving element is preferably an APD receiver (Avalanche diode). (Photodiode); The emitting lens 2 adjusts the relative position of the emitting lens 2 and the emitting element through the emitting lens fine-tuning structure; the receiving lens 3 adjusts the relative position of the receiving lens 3 and the receiving element through the receiving lens fine-tuning structure; the emitting bracket 4 adjusts the relative position of the emitting bracket 4 and the emitting channel through the emitting bracket adjustment structure, thereby adjusting the emitting optical axis; the receiving bracket 5 adjusts the relative position of the receiving bracket 5 and the receiving channel through the receiving bracket adjustment structure, thereby adjusting the receiving optical axis; the emitting plate 7 and the receiving plate 8 are respectively connected to the main board 6. The emitting plate 7 adjusts the relative position of the emitting element on the emitting plate 7 and the emitting lens 2 through the emitting plate fine-tuning structure; the receiving plate 8 adjusts the relative position of the receiving element on the receiving plate 8 and the receiving lens 3 through the receiving plate fine-tuning structure. In this embodiment, precise focusing is achieved by fine-tuning the relative positions of the emitting lens 2 and the emitting element, the receiving lens 3 and the receiving element, the emitting optical axis, and the receiving optical axis.
[0037] In some embodiments, a first lens 11 is provided in the transmitting channel, and a second lens 12 is provided in the receiving channel. Both the first lens 11 and the second lens 12 are convex lenses. The first lens 11 serves as a collimator, and the second lens 12 serves as a beam expander. Both the transmitting and receiving channels are provided with a second step and an inner pressure ring 13. The inner pressure ring 13 in the transmitting channel is threadedly connected to the transmitting channel. The first lens 11 is located between the second step of the transmitting channel and the inner pressure ring 13. The inner pressure ring 13 in the receiving channel is threadedly connected to the receiving channel. The second lens 12 is located between the second step of the receiving channel and the inner pressure ring 13. In this embodiment, the first lens 11 and the second lens 12 are fixed by the second step and the inner pressure ring 13.
[0038] In some embodiments, the transmitting bracket 4 has a transmitting bracket channel, and a third lens 18 is disposed within the transmitting bracket channel. A first lens 11 is located between the transmitting lens 2 and the third lens 18. The receiving bracket 5 has a receiving bracket channel, and a fourth lens 19 is disposed within the receiving bracket channel. A second lens 12 is located between the receiving lens 3 and the fourth lens 19. Both the third lens 18 and the fourth lens 19 are concave lenses and are focusing lenses. Both the transmitting bracket channel and the receiving bracket channel have a third step and an inner pressure ring 20. The inner pressure ring 20 in the transmitting bracket channel is threadedly connected to the transmitting bracket channel. The third lens 18 is located between the third step and the inner pressure ring 20 in the transmitting bracket channel. The inner pressure ring 20 in the receiving bracket channel is threadedly connected to the receiving bracket channel. The fourth lens 19 is located between the third step and the inner pressure ring 20 in the receiving bracket channel. In this embodiment, the third lens 18 and the fourth lens 19 are fixed by the third step and the inner pressure ring 20.
[0039] In some embodiments, the transmitting lens fine-tuning structure and the receiving lens fine-tuning structure have the same structure. Both the transmitting lens fine-tuning structure and the receiving lens fine-tuning structure include an outer pressure ring 9 and an inner waterproof ring 10. The transmitting lens 2 is located between the outer pressure ring 9 and the inner waterproof ring 10 of the transmitting lens fine-tuning structure, and the receiving lens 3 is located between the outer pressure ring 9 and the inner waterproof ring 10 of the receiving lens fine-tuning structure. The outer pressure ring 9 of the transmitting lens fine-tuning structure is threadedly connected to the transmitting channel, and the outer pressure ring 9 of the receiving lens fine-tuning structure is threadedly connected to the receiving channel. The outer pressure ring 9 is provided with external threads, and the sidewalls of both the transmitting channel and the receiving channel are provided with internal threads. The inner waterproof ring 10... Made of elastic material, preferably rubber, both the transmitting and receiving channels have a first step. The inner waterproof ring 10 is set on the first step. The position of the transmitting lens 2 along the axial direction of the transmitting channel is adjusted by adjusting the pressure applied by the outer pressure ring 9 of the transmitting lens fine-tuning structure to the inner waterproof ring 10 of the transmitting lens fine-tuning structure, that is, adjusting the distance between the transmitting lens 2 and the transmitting element. The position of the receiving lens 3 along the axial direction of the receiving channel is adjusted by adjusting the pressure applied by the outer pressure ring 9 of the receiving lens fine-tuning structure to the inner waterproof ring 10 of the receiving lens fine-tuning structure, that is, adjusting the distance between the receiving lens 3 and the receiving element, thereby achieving focal length adjustment.
[0040] In some embodiments, one end of the transmitting bracket 4 extends into the transmitting channel, and one end of the receiving bracket 5 extends into the receiving channel. The transmitting bracket adjustment structure and the receiving bracket adjustment structure have the same structure. Both the transmitting bracket adjustment structure and the receiving bracket adjustment structure include at least two radial adjustment components 14. The axial direction of the transmitting channel and the axial direction of the receiving channel are perpendicular to the axial direction of the radial adjustment component 14. The radial adjustment component 14 is preferably a screw. The radial adjustment component 14 of the transmitting bracket adjustment structure is threadedly connected to the transmitting channel, and the radial adjustment component 14 of the receiving bracket adjustment structure is threadedly connected to the receiving channel. One end of the radial adjustment component 14 of the transmitting bracket adjustment structure extends into the transmitting channel and contacts the transmitting bracket 4, and one end of the radial adjustment component 14 of the receiving bracket adjustment structure extends into the receiving channel and contacts the receiving bracket 5.
[0041] In some embodiments, there are at least three radial adjustment components 14. The at least three radial adjustment components 14 of the transmitter bracket adjustment structure are evenly distributed circumferentially around the transmitter channel, and the at least three radial adjustment components 14 of the receiver bracket adjustment structure are evenly distributed circumferentially around the receiver channel. In this embodiment, the offset between the transmitter bracket channel of the transmitter bracket 4 and the transmitter channel of the mechanism 1, as well as the offset between the receiver bracket channel of the receiver bracket 5 and the receiver channel of the mechanism 1, can be adjusted by the radial adjustment components 14, thereby achieving fine adjustment of the transmitter optical axis and the receiver optical axis.
[0042] In some embodiments, the mechanism 1 is provided with a transmitter bracket clamping structure 15 and a receiver bracket clamping structure 16. The transmitter bracket 4 can pass through the transmitter bracket clamping structure 15 and extend into the transmission channel. The transmitter bracket clamping structure 15 fixes the transmitter bracket 4 with locking screws. The position of the transmitter bracket 4 clamped by the transmitter bracket clamping structure 15 is adjusted to adjust the length of the transmitter bracket 4 extending into the transmission channel, thereby adjusting the distance between the third lens 18 and the first lens 11. The distance between the third lens 18 and the first lens 11 affects the focal length of the overall optical path, which can also be compensated by adjusting the transmitter lens 2. The receiver bracket 5 can pass through the receiver bracket clamping structure 16 and extend into the receiving channel. The receiver bracket clamping structure 16 fixes the receiver bracket 5 with locking screws. The position of the receiver bracket 5 clamped by the receiver bracket clamping structure 16 is adjusted to adjust the length of the receiver bracket 5 extending into the receiving channel, thereby adjusting the distance between the fourth lens 19 and the second lens 12. The distance between the fourth lens 19 and the second lens 12 affects the focal length of the overall optical path, which can also be compensated by adjusting the receiver lens 3. In this embodiment, rapid focusing is achieved through the transmitter bracket clamping structure 15 and the receiver bracket clamping structure 16.
[0043] In some embodiments, the distance of the transmitting bracket 4 extending into the transmitting channel is adjusted and fixed by the transmitting bracket clamping structure 15 to achieve coarse adjustment of the transmitting bracket 4. The distance of the receiving bracket 5 extending into the receiving channel is adjusted and fixed by the receiving bracket clamping structure 16 to achieve coarse adjustment of the receiving bracket 5. Based on this, the radial adjustment components 14, which are evenly distributed at 120°, are adjusted to perform precise fine adjustment of the transmitting bracket and the receiving bracket to achieve the best ranging photoelectric signal, thereby realizing optical characteristics for longer ranging distances.
[0044] In some embodiments, the emitter plate fine-tuning structure and the receiver plate fine-tuning structure have the same structure. Both the emitter plate fine-tuning structure and the receiver plate fine-tuning structure include an axial adjustment component 17, which is preferably a locking screw. The emitter bracket 4 and the emitter plate 7 are threadedly connected to the axial adjustment component 17 of the emitter plate fine-tuning structure, and the receiver bracket 5 and the receiver plate 8 are threadedly connected to the axial adjustment component 17 of the receiver plate fine-tuning structure. By adjusting the connection positions of the emitter bracket 4 and the emitter plate 7 with the axial adjustment component 17 of the emitter plate fine-tuning structure, the distance between the emitting element of the emitter plate 7 and the third lens 18 is adjusted. By adjusting the connection positions of the emitter bracket 4 and the receiver plate 8 with the axial adjustment component 17 of the receiver plate fine-tuning structure, the distance between the receiving element of the receiver plate 8 and the fourth lens 19 is adjusted, thereby achieving the adjustment of the light spot.
[0045] In some implementations, the motherboard 6 is connected to the movement 1 via locking screws.
[0046] In some embodiments, the core 1, the transmitting bracket 4, the receiving bracket 5, the outer pressure ring 9, the inner pressure ring 13 of the core 13, the radial adjustment component 14, the axial adjustment component 17, and the inner pressure ring 20 of the bracket are all made of metal, making the structure less prone to deformation and more stable.
[0047] In use, the position of the transmitting lens 2 is adjusted by the outer pressure ring 9 of the transmitting lens fine-tuning structure, and the position of the receiving lens 3 is adjusted by the outer pressure ring 9 of the receiving lens fine-tuning structure. The transmitting plate 7 and the transmitting bracket 4 are adjusted and fixed by the axial adjustment component 17 of the transmitting plate fine-tuning structure, and the receiving plate 8 and the receiving bracket 5 are adjusted and fixed by the axial adjustment component 17 of the receiving plate fine-tuning structure. The relative positions of the transmitting bracket 4 and the transmitting bracket clamping structure 15, and the receiving bracket 5 and the receiving bracket clamping structure 16 are adjusted to determine the focal length. Then, the transmitting bracket clamping structure 15 and the receiving bracket clamping structure 16 are locked with locking screws to achieve rapid adjustment of the transmitting bracket 4 and the receiving bracket 5. The transmitting bracket 4 is fine-tuned by the radial adjustment component 14 of the transmitting bracket adjustment structure, and the receiving bracket 5 is fine-tuned by the radial adjustment component 14 of the receiving bracket adjustment structure to make the optical axis / spot more focused. During the fine-tuning process using the radial adjustment component 14, the radial adjustment component 14 further locks the transmitting bracket 4 and the receiving bracket 5 to make the structure more stable. After debugging, the main board 6 is fixed on the mechanism 1. This embodiment enables precise adjustment of the transmitting assembly consisting of the transmitting lens 2, the transmitting bracket 4, and the transmitting plate 7, and the receiving assembly consisting of the receiving lens 3, the receiving bracket 5, and the receiving plate 8. The laser ranging module 100 of this embodiment can be applied to fields such as drones, industry, and intelligent ranging, and has the advantages of long ranging distance, high accuracy, stable ranging, and high overall mechanical stability.
[0048] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A laser ranging module, characterized in that: include: The device comprises a mechanism, a transmitting lens, a receiving lens, a transmitting bracket, a receiving bracket, a main board, a transmitting board, and a receiving board; the transmitting lens, the receiving lens, the transmitting bracket, the receiving bracket, and the main board are all mounted on the mechanism. The mechanism is provided with a transmission channel and a receiving channel. The transmitting lens, the transmitting bracket, and the transmitting element of the transmitting plate are all arranged corresponding to the transmission channel. The receiving lens, the receiving bracket, and the receiving element of the receiving plate are all arranged corresponding to the receiving channel. The transmitting plate and the receiving plate are both connected to the main board. The transmitting lens adjusts the relative position of the transmitting lens and the transmitting element through the transmitting lens fine-tuning structure, and the receiving lens adjusts the relative position of the receiving lens and the receiving element through the receiving lens fine-tuning structure; One end of the transmitting bracket extends into the transmitting channel, and one end of the receiving bracket extends into the receiving channel. The transmitting bracket adjusts the relative position of the transmitting bracket and the transmitting channel through the transmitting bracket adjustment structure to adjust the transmitting optical axis. The receiving bracket adjusts the relative position of the receiving bracket and the receiving channel through the receiving bracket adjustment structure to adjust the receiving optical axis.
2. The laser ranging module according to claim 1, characterized in that: The transmitting lens fine-tuning structure and the receiving lens fine-tuning structure have the same structure. Both the transmitting lens fine-tuning structure and the receiving lens fine-tuning structure include an outer pressure ring and an inner waterproof ring. The transmitting lens is located between the outer pressure ring and the inner waterproof ring of the transmitting lens fine-tuning structure, and the receiving lens is located between the outer pressure ring and the inner waterproof ring of the receiving lens fine-tuning structure. The outer pressure ring of the transmitting lens fine-tuning structure is threadedly connected to the transmitting channel, and the outer pressure ring of the receiving lens fine-tuning structure is threadedly connected to the receiving channel. The inner waterproof ring is made of elastic material. A first step is provided in both the transmitting channel and the receiving channel, and the inner waterproof ring is disposed on the first step. The distance between the transmitting lens and the transmitting element is adjusted by adjusting the pressure applied by the outer pressure ring of the transmitting lens fine-tuning structure to the inner waterproof ring of the transmitting lens fine-tuning structure. Similarly, the distance between the receiving lens and the receiving element is adjusted by adjusting the pressure applied by the outer pressure ring of the receiving lens fine-tuning structure to the inner waterproof ring of the receiving lens fine-tuning structure.
3. The laser ranging module according to claim 1, characterized in that: The transmitting channel is also equipped with a first lens, and the receiving channel is also equipped with a second lens.
4. The laser ranging module according to claim 3, characterized in that: Both the transmitting channel and the receiving channel are provided with a second step and an inner pressure ring. The inner pressure ring in the transmitting channel is threadedly connected to the transmitting channel. The first lens is located between the second step in the transmitting channel and the inner pressure ring in the transmitting channel. The inner pressure ring in the receiving channel is threadedly connected to the receiving channel. The second lens is located between the second step in the receiving channel and the inner pressure ring in the receiving channel.
5. The laser ranging module according to claim 1, characterized in that: The transmitter bracket adjustment structure and the receiver bracket adjustment structure have the same structure. Both the transmitter bracket adjustment structure and the receiver bracket adjustment structure include at least two radial adjustment components. The radial adjustment component of the transmitter bracket adjustment structure is threadedly connected to the transmitter channel, and the radial adjustment component of the receiver bracket adjustment structure is threadedly connected to the receiver channel. One end of the radial adjustment component of the transmitter bracket adjustment structure extends into the transmitter channel and contacts the transmitter bracket, and one end of the radial adjustment component of the receiver bracket adjustment structure extends into the receiver channel and contacts the receiver bracket.
6. The laser ranging module according to claim 5, characterized in that: The radial adjustment components are at least three in number, and the at least three radial adjustment components of the transmitting bracket adjustment structure are evenly distributed around the circumference of the transmitting channel, and the at least three radial adjustment components of the receiving bracket adjustment structure are evenly distributed around the circumference of the receiving channel.
7. The laser ranging module according to claim 1, characterized in that: The mechanism is provided with a transmitter bracket clamping structure and a receiver bracket clamping structure; the transmitter bracket can pass through the transmitter bracket clamping structure and extend into the transmitter channel, and the position of the transmitter bracket is clamped by the transmitter bracket clamping structure, thereby adjusting the length of the transmitter bracket extending into the transmitter channel; the receiver bracket can pass through the receiver bracket clamping structure and extend into the receiver channel, and the position of the receiver bracket is clamped by the receiver bracket clamping structure, thereby adjusting the length of the receiver bracket extending into the receiver channel.
8. The laser ranging module according to claim 1, characterized in that: The transmitter plate adjusts the relative position of the transmitting element and the transmitting lens on the transmitter plate through a transmitter plate fine-tuning structure, and the receiver plate adjusts the relative position of the receiving element and the receiving lens on the receiver plate through a receiver plate fine-tuning structure. The transmitter plate fine-tuning structure and the receiver plate fine-tuning structure have the same structure, and both the transmitter plate fine-tuning structure and the receiver plate fine-tuning structure include an axial adjustment component; the transmitter bracket and the transmitter plate are both threadedly connected to the axial adjustment component of the transmitter plate fine-tuning structure, and the receiver bracket and the receiver plate are both threadedly connected to the axial adjustment component of the receiver plate fine-tuning structure.
9. The laser ranging module according to claim 1, characterized in that: The transmitting bracket has a transmitting bracket channel, and a third lens is disposed within the transmitting bracket channel; the receiving bracket has a receiving bracket channel, and a fourth lens is disposed within the receiving bracket channel.
10. The laser ranging module according to claim 9, characterized in that: Both the transmitting bracket channel and the receiving bracket channel are provided with a third step and an inner pressure ring. The inner pressure ring in the transmitting bracket channel is threadedly connected to the transmitting bracket channel. The third lens is located between the third step in the transmitting bracket channel and the inner pressure ring in the transmitting bracket channel. The inner pressure ring in the receiving bracket channel is threadedly connected to the receiving bracket channel. The fourth lens is located between the third step in the receiving bracket channel and the inner pressure ring in the receiving bracket channel.