Optical sensing integrated assembly and laser sensor

Abstract

The utility model relates to an optical sensing integrated assembly and a laser sensor. The optical sensing integrated assembly comprises a lens positioning part, a lens assembly, a light source positioning part and a light source module. The lens positioning part and the light source positioning part are integrally formed, and the lens positioning part is provided with a centering datum line extending towards the light source positioning part; the lens positioning part is used for assembling a lens assembly, so that a main optical axis of the lens assembly is collinear with the centering datum line; the light source positioning part is used for assembling a light source module to enable a main optical axis of the light source module to extend into the lens assembly, the light source positioning part comprises a supporting inclined table, the top surface of the supporting inclined table is provided with an assembling surface used for installing the light source module, and an included angle is formed between the plane where the assembling surface is located and the centering datum line; the light source module emits light parallel to the main optical axis of the lens assembly. After the lens assembly and the light source module are assembled on the lens positioning part and the light source positioning part respectively, the propagation direction of light rays can be changed, the light rays are obliquely incident, and the influence of stray light is reduced.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and in particular to an optical sensing integrated component and a laser sensor. Background Technology

[0002] With the development of sensor technology, in laser sensors, to improve the energy of the emitted laser and the coupling efficiency of the reflected light, it is necessary to strictly control the relative position of the light source module and the lens. In particular, it is necessary to control the relative deviation between the light source module and the lens in the X, Y, and Z directions, which will directly affect the performance of the laser sensor.

[0003] The manufacturing precision of existing machining processes is insufficient to meet the micron-level precision requirements of optical systems. This results in excessive relative positional errors between the light source module and the lens after assembly, causing stray light to be generated when the light emitted from the light source module enters the lens, thus affecting the quality of the laser sensor. Utility Model Content

[0004] Therefore, it is necessary to provide an integrated optical sensing component and a laser sensor to address the problem of poor performance of the light source module.

[0005] An integrated optical sensing component includes: a lens positioning part, a lens assembly, a light source positioning part, and a light source module;

[0006] The lens positioning part and the light source positioning part are integrally formed, and the lens positioning part is provided with a centering reference line extending toward the light source positioning part;

[0007] The lens positioning section is used to assemble the lens assembly so that the principal optical axis of the lens assembly is collinear with the centering reference line;

[0008] The light source positioning part includes a support ramp. The bottom surface of the support ramp is set as a plane, and the top surface of the support ramp is provided with a mounting surface for mounting the light source module. The plane where the mounting surface is located has an angle with the centering reference line so as to tilt the main optical axis of the light source module relative to the main optical axis of the lens assembly, so that the light source module emits light parallel to the main optical axis of the lens assembly.

[0009] In one embodiment, the lens positioning part has a mounting through hole along the centering reference line direction, and the opening direction of the mounting through hole is consistent with the extension direction of the centering reference line.

[0010] The outer peripheral surface of the lens positioning part is provided with a rotational fitting section and a limiting fitting section;

[0011] The lens assembly includes: lens parts and a rotating kit;

[0012] The rotating kit is fitted onto the outside of the lens component and mates with some of the lens components;

[0013] The inner wall of the rotating assembly is in movable fit with the rotating fitting section, the lens component passes through the mounting through hole, and the outer wall of the lens component is in movable fit with the limiting fitting section;

[0014] The rotating assembly is used to rotate relative to the rotating mating section to move the lens component in the direction of extending into and out of the mounting through hole.

[0015] In one embodiment, a first limiting member hole is provided on the limiting mating section, and the first limiting member hole is used to pass through the first guide limiting member;

[0016] A strip-shaped guide hole is provided on the surface of the lens component, and the strip-shaped guide hole is opened parallel to the extension direction of the principal optical axis of the lens component;

[0017] The first limiting member hole is at least partially connected to the strip guide hole, one end of the first guiding limiting member passes through the first limiting member hole into the strip guide hole, and the other end of the first guiding limiting member is fixed in the first limiting member hole;

[0018] The first guide limiter cooperates with the strip guide hole to limit the movement range of the lens component;

[0019] The length of the guide hole along the main optical axis of the lens component is set as the guide length L, and the range of movement of the lens component is equal to the guide length L.

[0020] In one embodiment, the surface of the rotating mating section is provided with external threads, and the inner wall of the rotating assembly is provided with internal threads accordingly, and the rotating mating section and the rotating assembly are threadedly mated.

[0021] The lens component is provided with a first mating part, and the rotating kit is provided with a second mating part. The second mating part cooperates with the first mating part so that when the rotating kit rotates, it drives the lens component to move along the extension direction of the centering reference line.

[0022] In one embodiment, the second mating part includes a second limiting hole through the rotating assembly and a second limiting guide disposed in the second limiting hole, and the first mating part is configured as a guide groove opened along the circumferential direction of the lens component;

[0023] When the rotating assembly and the lens component are in the assembled state, the second limiting hole is set with the guide groove; one end of the second limiting guide passes through the second limiting hole into the guide groove, and the other end of the second limiting guide is fixed in the second limiting hole. The second limiting guide slides with the side wall of the guide groove to drive the lens component to move when the rotating assembly rotates.

[0024] In one embodiment, the rotating assembly includes an integrally formed focusing ring segment and a focusing ring segment; a second mating part is disposed on the focusing ring segment; the outer side wall of the focusing ring segment is uniformly provided with scale lines along the circumferential direction, and the limiting mating segment is provided with a scale pointer corresponding to the scale lines.

[0025] In one embodiment, at least two second mating parts are provided on the rotating assembly, and the second mating parts are evenly spaced on the rotating assembly.

[0026] In one embodiment, the support ramp is provided with weight reduction holes;

[0027] And / or, the included angle is set between 4° and 10°;

[0028] And / or, the rotating kit has an injection hole that connects to the surface of the lens component.

[0029] A laser sensor comprising any of the above-mentioned optical sensing integrated components.

[0030] The aforementioned integrated optical sensing component includes a lens positioning section, a lens assembly, a light source positioning section, and a light source module. The lens positioning section and the light source positioning section are integrally formed. The lens positioning section has a centering reference line extending towards the light source positioning section. The lens positioning section is used to assemble the lens assembly so that the principal optical axis of the lens assembly is collinear with the centering reference line. The light source positioning section is used to assemble the light source module so that the principal optical axis of the light source module extends into the lens assembly. The light source positioning section includes a supporting ramp. The bottom surface of the supporting ramp is a plane, and the top surface of the supporting ramp has a mounting surface for mounting the light source module. The plane containing the mounting surface forms an angle with the centering reference line, causing the principal optical axis of the light source module to be tilted relative to the principal optical axis of the lens assembly, so that the light source module emits light parallel to the principal optical axis of the lens assembly. This reduces stray light emitted by the light source module. Furthermore, it can reduce ghosting caused by secondary imaging of the laser sensor, extend the lifespan of the light source module, improve the signal calibration ratio, and increase the return coupling efficiency.

[0031] A laser sensor also possesses the beneficial effects of the aforementioned optical sensing integrated components. Attached Figure Description

[0032] Figure 1 This is a side cross-sectional view of the optical sensing integrated component in the embodiments of this application.

[0033] Figure 2 This is a side sectional view of the lens positioning part and the light source positioning part in the embodiments of this application.

[0034] Figure 3 This is a top view of the lens positioning part and the light source positioning part in the embodiments of this application.

[0035] Figure 4This is an assembly and disassembly diagram of the lens positioning part and the lens component in the embodiments of this application.

[0036] Figure 5 This is an assembly and disassembly diagram of the lens positioning part and lens assembly in the embodiments of this application.

[0037] Figure 6 This is a side sectional view of the lens assembly and lens positioning part assembled in the embodiments of this application.

[0038] Figure 7 for Figure 6 Top view.

[0039] Figure 8 for Figure 1 A magnified view of a portion of point A in the middle.

[0040] Figure 9 for Figure 6 A magnified view of a section at point B.

[0041] Figure 10 A partial assembly diagram of the rotating kit and lens component in an embodiment of this application.

[0042] Figure 11 This is a schematic diagram of the structure of the lens assembly and lens positioning part after assembly in the embodiments of this application.

[0043] Figure 12 for Figure 11 Top view.

[0044] Icon labels:

[0045] 1. Lens positioning unit;

[0046] 1.1 Install through holes;

[0047] 1.2 Rotational mating section;

[0048] 1.3 Limiting and fitting section; 1.3.1 First limiting hole; 1.3.2 First guide limiting component;

[0049] 2. Lens assembly;

[0050] 2.1 Lens component; 2.1.1 First mating part; 2.1.2 Strip-shaped guide hole;

[0051] 2.2 Rotating assembly; 2.2.1 Second mating part; 2.2.2 Second limiting hole; 2.2.3 Second limiting guide; 2.2.4 Glue injection hole;

[0052] 2.3 Focusing ring section; 2.4 Focusing ring section;

[0053] 3. Light source positioning part; 3.1. Assembly surface; 3.1.1. Positioning post;

[0054] 4. Light source module. Detailed Implementation

[0055] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0056] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0057] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0060] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0061] See Figure 1 - Appendix Figure 4 As shown, Figure 1 This is a side cross-sectional view of the optical sensing integrated component in the embodiments of this application. Figure 2 This is a side sectional view of the lens positioning part and the light source positioning part in the embodiments of this application. Figure 3 This is a top view of the lens positioning part and the light source positioning part in the embodiments of this application. Figure 4 This is an assembly and disassembly diagram of the lens positioning part and lens component in an embodiment of this application, showing an integrated optical sensing component including: a lens positioning part 1, a lens component 2, a light source positioning part 3, and a light source module 4. The lens positioning part 1 and the light source positioning part 3 are integrally formed, and the lens positioning part 1 is provided with a centering reference line extending toward the light source positioning part 3.

[0062] The lens positioning part 1 is used to assemble the lens assembly 2. After the lens assembly 2 is assembled, the lens positioning part 1 limits the movement of the lens assembly 2 so that the main optical axis of the lens assembly 2 is collinear with the centering reference line.

[0063] The light source positioning part 3 is used to assemble the light source module 4, and by controlling the relative positional relationship between the light source positioning part 3 and the lens positioning part 1, the main optical axis of the light source module 4 can extend into the lens assembly 2, ensuring that the light source can enter the lens assembly 2. The light source positioning part 3 may include a support ramp, the bottom surface of which is a plane, and the top surface of which is provided with a mounting surface 3.1 for mounting the light source module 4. The surface where the mounting surface 3.1 is located has an angle with the plane where the centering reference line is located, which ensures that the main optical axis of the light source module 4 is tilted relative to the main optical axis of the lens assembly 2. Ultimately, the light emitted from the light source module 4 is parallel to the main optical axis of the lens assembly 2. That is, after the lens assembly 2 and the light source module 4 are assembled respectively, the light from the light source module 4 can enter the lens assembly 2 horizontally.

[0064] It is important to clarify that one of the necessary but not sufficient conditions for achieving long-distance, high-precision ranging performance of laser sensors is that the laser's back-coupling efficiency must be greater than a certain threshold. To achieve the aforementioned technical effects, it is necessary to ensure that the deviation between the lens assembly 2 and the light source module 4 is within a certain range, so that the outgoing light from inside the optical fiber of the light source module 4 enters the center of the lens of the lens assembly 2 perpendicularly, thereby reducing energy loss.

[0065] In this embodiment, the light-emitting component in the light source module 4 is similar to an optical fiber. Light travels within the optical fiber. Because the wavelength of the light emitted by the laser is not uniform, there will be an optical error of a few nanometers. Different wavelengths of light travel at different speeds through the optical fiber, resulting in different arrival times at the fiber end face. To reduce the group velocity of the light, a tilted surface is typically added to the fiber end face. The tilt angle of this surface depends on factors such as the overall group velocity, wavelength, and refractive index, thus effectively suppressing stray light. However, because the fiber end face is tilted, the light emitted from the fiber is not parallel to the ground; it has a certain elevation angle. To correct this elevation angle, in this embodiment, the principal optical axis of the light source module 4 is tilted relative to the principal optical axis of the lens assembly 2 at a certain angle, allowing the light from the light source module 4 to be emitted parallel to the ground.

[0066] In one embodiment of this application, an X-reference direction, a Y-reference direction, and a Z-reference direction are defined, wherein the Z-reference direction is consistent with the centering reference line direction of the lens positioning part 1. The X-reference direction and the Y-reference direction are set in a plane perpendicular to the Z-reference direction, with the X-reference direction set vertically and the Y-reference direction set horizontally in the plane, forming a three-dimensional coordinate system. After the light source module 4 and the light source positioning part 3 are positioned and assembled, the position of the light source module 4 will no longer change. Therefore, by fixing the lens assembly 2 with the lens positioning part 1, the positioning of the lens assembly 2 in the three-dimensional coordinate system can be achieved, while controlling the relative position of the lens assembly 2 and the light source module 4. Ensuring that the principal optical axis of the lens assembly 2 after assembly is collinear with the centering reference line of the lens positioning part 1 ensures that the position of the lens assembly 2 in the X-reference direction and the Y-reference direction is determined. Thus, the eccentricity tolerance between the lens assembly 2 and the light source module 4 is converted into the assembly alignment of the lens assembly 2 and the lens positioning part 1.

[0067] By changing the assembly position of lens assembly 2, the relative position of lens assembly 2 and light source module 4 can be precisely controlled. Without altering the structure of light source module 4, the light source positioning part 3 can tilt the entire light source module 4. After lens assembly 2 and light source module 4 are respectively assembled by lens positioning part 1 and light source positioning part 3, the direction of light propagation can be changed, allowing the light from light source module 4 to be emitted parallel to the principal optical axis of lens assembly 2. Stray light that might have been directly reflected or scattered into non-target areas is guided to other directions, reducing the influence of stray light. Furthermore, it can reduce ghosting caused by secondary imaging of the laser sensor, extend the lifespan of light source module 4, improve the signal calibration ratio, and increase the return coupling efficiency.

[0068] In this embodiment, the lens positioning part 1 and the light source positioning part 3 are integrally formed, which allows the light source module 4 and the lens assembly 2 to be mounted on the same structure, thereby reducing assembly deviation.

[0069] Reference manual attached Figure 5 - Appendix Figure 10 , Figure 5 This is an assembly and disassembly diagram of the lens positioning part and the lens assembly in the embodiments of this application. Figure 6 This is a side sectional view of the lens assembly and lens positioning part assembled in the embodiments of this application. Figure 7 for Figure 6 Top view, Figure 8 for Figure 1 Enlarged view of a section at point A in the middle. Figure 9 for Figure 6 Enlarged view of part B in the middle. Figure 10A partial assembly diagram of the rotating kit and lens component in this application embodiment shows that, in one embodiment of this application, the lens positioning part 1 has a mounting through hole 1.1, and the opening direction of the mounting through hole 1.1 is consistent with the extension direction of the centering reference line. A rotating fitting section 1.2 and a limiting fitting section 1.3 are provided on the outside of the lens positioning part 1.

[0070] The aforementioned lens assembly 2 includes a lens component 2.1 and a rotating kit 2.2. The inner wall of the rotating kit 2.2 is clearance-fitted with the outer wall of the lens component 2.1, and the rotating kit 2.2 is sleeved on the outside of the lens component 2.1. Furthermore, a portion of the rotating kit 2.2 mates with a portion of the lens component 2.1.

[0071] The inner wall of the rotating assembly 2.2 is in movable engagement with the rotating fitting section 1.2, the lens component 2.1 passes through the mounting through hole 1.1, and the outer wall of the lens component 2.1 is in movable engagement with the limiting fitting section 1.3;

[0072] The aforementioned rotating assembly 2.2 can rotate relative to the aforementioned rotating mating section 1.2. The mutual cooperation between the rotating assembly 2.2 and the lens component 2.1 can drive the lens component 2.1 to move in the direction of extending into and out of the aforementioned mounting through hole 1.1.

[0073] The center of the mounting through-hole 1.1 is set on the centering reference line. The principal optical axis of the lens component 2.1 is the principal optical axis of the lens assembly 2. By limiting the lens component 2.1 through the mounting through-hole 1.1, it is equivalent to limiting the lens assembly 2 in three directions: the X-reference direction, the Y-reference direction, and the Z-reference direction, by the lens positioning part 1. It can be seen that the limiting in the X-reference direction and the Y-reference direction can be achieved by the inner diameter of the mounting through-hole 1.1. After the light source module 4 is positioned by the light source positioning part 3, by controlling the assembly accuracy and machining accuracy of the lens component 2.1 in the mounting through-hole 1.1 and combining it with the extreme value method tolerance calculation, the eccentricity tolerance between the light source of the light source module 4 and the lens component 2.1 in the X-reference direction and the Y-reference direction can be limited to the millimeter-level accuracy requirement.

[0074] Simultaneously, the aforementioned rotating assembly 2.2 can rotate relative to the aforementioned rotating mating section 1.2, thereby allowing the lens component 2.1 to move along the centering reference line in the direction of extending into and out of the mounting through hole 1.1. According to the above configuration, this means the lens component 2.1 can move closer to or further away from the light source module 4 along the Z-reference direction. This configuration makes the relative position of the lens assembly 2 and the light source module 4 adjustable, achieving linear movement of the lens assembly 2 along the Z-reference direction through the rotation of the rotating assembly 2.2 and the rotating mating section 1.2. This configuration allows for adjustment before final production, ensuring optimal sensing performance after focal length adjustment.

[0075] In one embodiment of this application, a first limiting member hole 1.3.1 may be provided on the aforementioned limiting mating section 1.3, and the first limiting member hole 1.3.1 is used to pass through the first guide limiting member 1.3.2.

[0076] The lens component 2.1 may have a strip-shaped guide hole 2.1.2 on its surface. The strip-shaped guide hole 2.1.2 is parallel to the extension direction of the principal optical axis of the lens component 2.1; that is, after the lens component 2.1 is assembled with the lens positioning part 1, the length direction of the strip-shaped guide hole 2.1.2 is consistent with the extension direction of the centering reference line. The first limiting member hole 1.3.1 is in communication with the strip-shaped guide hole 2.1.2, and the first guiding limiting member 1.3.2 passes through the first limiting member hole 1.3.1 into the strip-shaped guide hole 2.1.2; the first guiding limiting member 1.3.2 cooperates with the strip-shaped guide hole 2.1.2 to guide the movement of the lens component 2.1.

[0077] In this embodiment, the cooperation between the strip guide hole 2.1.2 and the first guide limiting member 1.3.2 can restrict the rotation or displacement of the lens component 2.1 in the X and Y directions, limiting the lens component 2.1 to move linearly along the centering reference line.

[0078] In one embodiment of this application, the strip-shaped guide hole 2.1.2 can be configured as an oblong hole or a strip-shaped hole of other shapes, which can be determined according to the actual situation. This specification does not limit this embodiment. After the lens component 2.1 is assembled with the lens positioning part 1, the length direction of the oblong hole is consistent with the extension direction of the centering reference line.

[0079] After the first guide limiting member 1.3.2 passes through the first limiting member hole 1.3.1, it extends into the strip guide hole 2.1.2. A gap is left between the end of the first guide limiting member 1.3.2 and the bottom of the strip guide hole 2.1.2 to ensure that the first guide limiting member 1.3.2 is not in a locked state after assembly. The first limiting member hole 1.3.1 can be used to limit the shaking of the first guide limiting member 1.3.2. The first guide limiting member 1.3.2 is fixed in the first limiting member hole 1.3.1. When the lens component 2.1 moves, the first guide limiting member 1.3.2 will move within the strip guide hole 2.1.2 along the length direction of the strip guide hole 2.1.2, thereby ensuring that the lens component 2.1 moves along the extension direction of the centering reference line.

[0080] In one embodiment of this application, the structures of the first guide limiting member 1.3.2, the first limiting member hole 1.3.1, and the strip guide hole 2.1.2 can be configured in various combinations. For example, when the first guide limiting member 1.3.2 is configured as a screw, the first limiting member hole 1.3.1 is configured as a threaded hole, and the strip guide hole 2.1.2 is configured as a waist-shaped hole; or, when the first guide limiting member 1.3.2 is configured as a raised positioning block, the first limiting member hole 1.3.1 is configured as a through hole that conforms to the shape of the raised positioning block, and the strip guide hole 2.1.2 is configured as a guide groove in the conformal shape of the mating part of the raised positioning block, etc. The specific configuration can be determined according to the actual situation, and this specification does not limit it.

[0081] In one embodiment of this application, the opening length of the strip-shaped guide hole 2.1.2 along the main optical axis of the lens component 2.1 is set as the guide length L. By controlling the guide length L of the strip-shaped guide hole 2.1.2, the maximum range of movement of the lens component 2.1 can be controlled. In actual use, the lens assembly 2 and the light source module 4 can be pre-assembled and positioned, while the lens component 2.1 is finely adjusted within the range of the guide length L of the strip-shaped guide hole 2.1.2 until the focus adjustment is completed, and then the lens assembly 2 is positioned.

[0082] In one embodiment of this application, the surface of the aforementioned rotating mating section 1.2 is provided with external threads, and the inner wall of the aforementioned rotating assembly 2.2 is correspondingly provided with internal threads. The aforementioned rotating mating section 1.2 and the aforementioned rotating assembly 2.2 are threadedly mated. The specific mating structure of the external and internal threads is not limited, but optical threads are preferred, as long as it ensures that the principal optical axis of the lens assembly 2 does not shift during the mating rotation. By setting the thread pitch, fine-tuning of the position of the lens component 2.1 can be achieved, improving adjustment efficiency. The distance dimensional tolerance requirement between the lens component 2.1 and the light source module 4 in the Z-reference direction is at the micrometer level, which is achieved through fine-tuning of the threaded assembly.

[0083] The lens component 2.1 is provided with a first mating part 2.1.1, and the rotating kit 2.2 is provided with a second mating part 2.2.1. The second mating part 2.2.1 and the first mating part 2.1.1 are mated together so that the rotating kit 2.2 can drive the lens component 2.1 to move.

[0084] In this embodiment, the cooperation between the first mating part 2.1.1 and the second mating part 2.2.1 allows the rotating assembly 2.2 to move the lens component 2.1. Therefore, the specific structures of the first mating part 2.1.1 and the second mating part 2.2.1 can have various designs. For example, the first mating part 2.1.1 can be configured as a snap-fit ​​part, and the second mating part 2.2.1 can be configured as a snap-fit ​​groove; or, the first mating part 2.1.1 can be configured as a positioning recess, and the second mating part 2.2.1 can be configured as a positioning protrusion, etc. Of course, the specific structures of the first mating part 2.1.1 and the second mating part 2.2.1 are not limited to the examples above. Those skilled in the art may make other changes based on the technical essence of the embodiments in this specification. However, as long as the functions and effects achieved are the same as or similar to those in the embodiments of this specification, they should all be covered within the protection scope of the embodiments of this specification.

[0085] In one embodiment of this application, the second mating part 2.2.1 includes a second limiting hole 2.2.2 that penetrates the rotating assembly 2.2 and a second limiting guide 2.2.3 disposed within the second limiting hole 2.2.2. The first mating part 2.1.1 is configured as a guide groove that is opened along the circumferential direction of the lens component 2.1. The second limiting guide 2.2.3 penetrates the second limiting hole 2.2.2 and is disposed within the guide groove, and the second limiting guide 2.2.3 can slide and engage with the sidewall of the guide groove.

[0086] In this embodiment, the extension section of the second limiting guide 2.2.3 extends into the guide groove, with a gap between the inner bottom surface of the guide groove and the end of the extension section of the second limiting guide 2.2.3. The groove depth of the guide groove is greater than the length of the extension section of the second limiting guide 2.2.3, ensuring that the second limiting guide 2.2.3 is not jammed after assembly. When the rotating assembly 2.2 rotates, the second limiting guide 2.2.3 moves circumferentially along the guide groove, generating a pushing force on the sidewall of the guide groove. This pushing force is set along the extension direction of the centering reference line, thereby driving the lens component 2.1 to move towards the direction of extending into and out of the mounting through hole 1.1. In one embodiment, the second limiting guide 2.2.3 is set as a limiting screw, and the groove depth of the guide groove is slightly greater than the tail length of the limiting screw.

[0087] Reference manual attached Figure 11 Included with instruction manual Figure 12 , Figure 11 This is a schematic diagram of the assembled lens assembly and lens positioning part in the embodiments of this application. Figure 12 for Figure 11As shown in the top view of one embodiment of this application, the aforementioned rotating assembly 2.2 includes an integrally formed focusing ring segment 2.3 and a focusing ring segment 2.4. This arrangement ensures concentricity during installation, facilitates installation, avoids errors caused by assembling too many parts, and contributes to lens stability. Furthermore, in this application, the first mating part 2.1.1 and the second mating part 2.2.1 are sufficient for engagement, eliminating the need for other redundant structures. Therefore, it ensures that the axial length of the focusing knob does not increase, thus preventing an increase in the overall size of the lens.

[0088] The second mating part 2.2.1 is provided on the focusing ring section 2.3. The outer wall of the focusing ring section 2.4 is uniformly provided with scale lines along the circumferential direction. The limiting mating section 1.3 is provided with a scale pointer corresponding to the scale lines.

[0089] Set the total number of scale lines to n, align the scale pointer with one of the scale lines, and set the distance the lens component 2.1 moves along the Z-reference direction by rotating one scale line to be S. Set the pitch of the optical thread between the rotating mating section 1.2 and the rotating assembly 2.2 to m. Set the guide length of the strip guide hole 2.1.2 to L.

[0090] Then we have the formula: .

[0091] In one embodiment of this application, the external thread pitch m is set to 0.5 mm, and a scale line is set every 1° on the outer wall of the focusing ring segment 2.4, for a total of 360 scale lines in one revolution. The actual S of rotating one scale line is 1.4 μm (micrometer), thereby enabling micrometer-level precise distance adjustment between the lens component 2.1 and the light source module 4.

[0092] In one embodiment of this application, the rotating kit 2.2 is provided with an injection hole 2.2.4 communicating with the surface of the lens component 2.1. After pre-assembly, the position of the lens assembly 2 is adjusted according to the above method to adjust the focal length between the lens assembly 2 and the light source module 4. This step is performed before the overall structure is manufactured and shipped. After the lens assembly 2 is moved to the appropriate position, fixing glue needs to be injected into the injection hole 2.2.4 to ensure that the lens assembly 2 is stably limited in the current position without further adjustment. Of course, in one embodiment of this application, opening the injection hole 2.2.4 to inject glue and position the lens assembly 2 is only one of its positioning methods. The lens assembly 2 can also be limited by embedding fasteners or other methods. Those skilled in the art may make other changes under the guidance of the technical essence of the embodiments in this specification. However, as long as the function and effect achieved are the same as or similar to the embodiments in this specification, they should be covered within the protection scope of the embodiments in this specification.

[0093] In one embodiment of this application, at least two second mating portions 2.2.1 may be provided on the rotating assembly 2.2, and these second mating portions 2.2.1 may be evenly spaced on the rotating assembly 2.2. Furthermore, the two second mating portions 2.2.1 may be symmetrically arranged relative to the rotating assembly 2.2.

[0094] The aforementioned first limiting hole 1.3.1, the aforementioned first guide limiting member 1.3.2, and the aforementioned strip guide hole 2.1.2 are arranged in corresponding groups. In some embodiments, at least two groups may be provided. In the case of two groups, the two groups of the aforementioned first limiting hole 1.3.1, the aforementioned first guide limiting member 1.3.2, and the aforementioned strip guide hole 2.1.2 may be arranged symmetrically with respect to the mounting through hole 1.1.

[0095] In addition, holes can be made in the lens positioning part 1 and the light source positioning part 3 to reduce the amount of glue used, thereby reducing the product weight, improving production efficiency and reducing production costs without affecting the structural strength and heat dissipation performance of the product.

[0096] At least two positioning posts 3.1.1 can be provided on the aforementioned assembly surface 3.1. The aforementioned light source module 4 has positioning holes that correspond to and cooperate with the positioning posts 3.1.1. The light source module 4 is fixed by fixing the positioning posts 3.1.1 to the positioning holes. The aforementioned lens positioning part 1 is provided on one side of the aforementioned support ramp. When the lens assembly 2 is placed on the lens positioning part 1, the light source module 4 on the assembly surface 3.1 must first ensure that the relative position of the internal light source and the lens assembly 2 remains unchanged. After the position of the light source is determined, it is assumed that the diverging plane formed by the light rays from the light source entering the lens assembly 2 in the horizontal direction is the first plane, while in this application, the diverging plane formed by the light rays from the light source entering the lens assembly 2 is the second plane. The second plane is relative to the first plane with the light source as the rotation point, and the tilt angle can be set between 4° and 10°. The angle range between the first plane and the second plane is equivalent to the angle between the plane where the assembly surface 3.1 is located and the centering reference line. The specific angle can be determined according to the initial elevation angle of the light emitted by the light source module 4. This embodiment of the specification does not limit this.

[0097] After determining the second plane, it is necessary to ensure that the light source module 4 can be positioned on the second plane when it is assembled on the assembly surface 3.1. In some embodiments, the assembly surface 3.1 can be set parallel to the second plane.

[0098] A laser sensor may include the aforementioned optical sensing integrated component. Using this optical sensing integrated component in the laser sensor can improve the accuracy and precision of measurements. The remaining structural components of the laser sensor can be configured with reference to existing technologies, and will not be described in detail here.

[0099] 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.

[0100] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An integrated optical sensing component, characterized in that, include: Lens positioning part (1), lens assembly (2), light source positioning part (3) and light source module (4); The lens positioning part (1) and the light source positioning part (3) are integrally formed, and the lens positioning part (1) is provided with a centering reference line extending toward the light source positioning part (3); The lens positioning part (1) is used to assemble the lens assembly (2) so that the main optical axis of the lens assembly (2) is collinear with the centering reference line; The light source positioning part (3) includes a support ramp. The bottom surface of the support ramp is set as a plane. The top surface of the support ramp is provided with an assembly surface (3.1) for mounting the light source module (4). The plane where the assembly surface (3.1) is located has an angle with the centering reference line so as to tilt the main optical axis of the light source module (4) relative to the main optical axis of the lens assembly (2) so that the light source module (4) emits light parallel to the main optical axis of the lens assembly (2).

2. The optical sensing integrated component according to claim 1, characterized in that, The lens positioning part (1) is provided with a mounting through hole (1.1), and the opening direction of the mounting through hole (1.1) is consistent with the extension direction of the centering reference line. The outer peripheral surface of the lens positioning part (1) is provided with a rotating fitting section (1.2) and a limiting fitting section (1.3). The lens assembly (2) includes: a lens component (2.1) and a rotating kit (2.2); The rotating assembly (2.2) is fitted onto the outside of the lens component (2.1) and engages with a portion of the lens component (2.1); The inner wall of the rotating assembly (2.2) is movably engaged with the rotating fitting section (1.2), the lens component (2.1) passes through the mounting through hole (1.1), and the outer wall of the lens component (2.1) is movably engaged with the limiting fitting section (1.3); The rotating assembly (2.2) is used to rotate relative to the rotating mating section (1.2) to drive the lens component (2.1) to move in the direction of extending into and out of the mounting through hole (1.1).

3. The optical sensing integrated component according to claim 2, characterized in that, The limiting section (1.3) is provided with a first limiting hole (1.3.1), and the first limiting hole (1.3.1) is used to pass through the first guide limiting member (1.3.2). The lens component (2.1) has a strip-shaped guide hole (2.1.2) on its surface, and the strip-shaped guide hole (2.1.2) is opened parallel to the extension direction of the principal optical axis of the lens component (2.1); The first limiting hole (1.3.1) is at least partially connected to the strip guide hole (2.1.2), one end of the first guide limiting member (1.3.2) passes through the first limiting hole (1.3.1) into the strip guide hole (2.1.2), and the other end of the first guide limiting member (1.3.2) is fixed in the first limiting hole (1.3.1); The first guide limiting member (1.3.2) cooperates with the strip guide hole (2.1.2) to limit the movement range of the lens component (2.1); The opening length of the strip guide hole (2.1.2) along the main optical axis of the lens component (2.1) is set as the guide length L, and the movement range of the lens component (2.1) is equal to the guide length L.

4. The optical sensing integrated component according to claim 2, characterized in that, The surface of the rotating mating section (1.2) is provided with external threads, and the inner wall of the rotating assembly (2.2) is provided with internal threads accordingly. The rotating mating section (1.2) and the rotating assembly (2.2) are threadedly mated. The lens component (2.1) is provided with a first mating part (2.1.1), and the rotating kit (2.2) is provided with a second mating part (2.2.1). The second mating part (2.2.1) cooperates with the first mating part (2.1.1) so that when the rotating kit (2.2) rotates, it drives the lens component (2.1) to move along the extension direction of the centering reference line.

5. The optical sensing integrated component according to claim 4, characterized in that, The second mating part (2.2.1) includes a second limiting hole (2.2.2) through the rotating assembly (2.2) and a second limiting guide (2.2.3) disposed in the second limiting hole (2.2.2), and the first mating part (2.1.1) is configured as a guide groove opened along the circumferential direction of the lens component (2.1); When the rotating assembly (2.2) and the lens component (2.1) are in the assembled state, the second limiting hole (2.2.2) is provided corresponding to the guide groove; one end of the second limiting guide (2.2.3) passes through the second limiting hole (2.2.2) into the guide groove, and the other end of the second limiting guide (2.2.3) is fixed in the second limiting hole (2.2.2). The second limiting guide (2.2.3) slides with the side wall of the guide groove to drive the lens component (2.1) to move when the rotating assembly (2.2) rotates.

6. The optical sensing integrated component according to claim 4, characterized in that, The rotating assembly (2.2) includes an integrally formed focusing ring segment (2.3) and a focusing ring segment (2.4); the second mating part (2.2.1) is disposed on the focusing ring segment (2.3); the outer wall of the focusing ring segment (2.4) is uniformly provided with scale lines along the circumferential direction, and the limiting mating segment (1.3) is provided with a scale pointer corresponding to the scale lines.

7. The optical sensing integrated component according to claim 4, characterized in that, At least two of the second mating parts (2.2.1) are provided on the rotating assembly (2.2), and the second mating parts (2.2.1) are evenly spaced on the rotating assembly (2.2).

8. The optical sensing integrated component according to claim 2, characterized in that, The supporting inclined platform is provided with weight reduction holes; And / or, the included angle is set between 4° and 10°; And / or, the rotating assembly (2.2) is provided with a glue injection hole (2.2.4) communicating with the surface of the lens component (2.1).

9. The optical sensing integrated component according to claim 1, characterized in that, At least two positioning posts (3.1.1) are provided on the assembly surface (3.1), and the light source module (4) is provided with positioning holes that correspond to and cooperate with the positioning posts (3.1.1); the lens positioning part (1) is provided on one side of the support ramp.

10. A laser sensor, characterized in that, Includes the optical sensing integrated component as described in any one of claims 1-9.

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