Adjustable focus laser light

Abstract

The application provides an adjustable focal length laser lamp, which is characterized by comprising a top cover, a shell, an adjusting column, a locking piece, a cylindrical lens assembly, a collimating lens group, a first elastic piece and a laser lamp assembly, wherein the laser lamp assembly comprises a laser lamp light source; the first elastic piece is installed between the adjusting column and the bottom wall of the shell and is sleeved outside the collimating lens group; and the first elastic piece is arranged in a compressed state, so that the upper end of the adjusting column is in abutment with the top cover under the action of the first elastic piece; when the top cover is rotated, the adjusting column moves with the top cover; since the collimating lens group is fixedly connected with the adjusting column, the collimating lens group moves with the adjusting column, so that the focal length is adjusted by rotating the top cover, the operation is simple, the laser lamp with mechanical structure for adjusting the focal length has strong anti-interference performance, is suitable for complex and harsh environments, and is also suitable for scenes with frequent switching of working distances and frequent adjustment of the focal length.

Description

Technical Field

[0001] This application relates to the field of laser light technology, and more particularly to a laser light with adjustable focus. Background Technology

[0002] As an important optical tool, linear laser lights have been widely used in many fields such as building decoration, indoor positioning, equipment installation, and outdoor road marking. Their core performance indicator is the ability to project a clear, sharp, and uniformly bright straight laser spot onto the target surface at different working distances. When switching working distances, the focal length can be adjusted to ensure that the projected laser line remains clear, sharp, and concentrated in brightness at different working distances, thereby guaranteeing the accuracy of construction and measurement.

[0003] Currently, manually adjustable laser lights require disassembling the laser light housing and manually adjusting the position of the collimating lens group within the housing to change the distance between it and the laser source. This adjustment process is cumbersome, and frequent disassembly and reassembly affect the lifespan of the laser light's structural components. Automatically adjustable laser lights, on the other hand, utilize a miniature stepper motor or voice coil motor, through gears or screws, to drive the collimating lens group along the optical axis, changing its distance from the laser source. This process is typically precisely controlled by a built-in control circuit board. Therefore, automatically adjustable laser lights are structurally complex and expensive. Furthermore, their focusing accuracy depends heavily on the motor and transmission mechanism. When the motor and transmission mechanism are subjected to vibration, impact, or harsh environments such as dust or humidity, they are prone to malfunction, jamming, or inaccurate settings. The addition of electronic components also reduces the overall machine's anti-interference capability and stability under extreme temperatures. Utility Model Content

[0004] This application provides an adjustable-focus laser light to solve the technical problems mentioned in the background art.

[0005] This application provides an adjustable focal length laser light, including: a top cover, a housing, an adjustment column, a locking member, a cylindrical lens assembly, a collimating lens group, a first elastic member, and a laser light assembly, wherein the laser light assembly includes a laser light source; The upper end of the housing is provided with an extension edge, the top cover is threaded to the extension edge, the upper part of the housing is provided with a first cylindrical slot, and the bottom wall of the housing is provided with a circular through hole coaxial with the first slot. The lower end of the housing is detachably connected to the locking member. The locking member has a second slot. The laser light assembly is fixed on the outer side of the bottom wall of the housing and is located in the second slot. The laser light source extends into the circular through hole. The upper end of the adjusting column extends out of the housing and is provided with a nested opening. The cylindrical lens assembly is installed in the nested opening and is fixedly connected to the extension edge. The distance between the bottom end of the cylindrical lens assembly and the bottom end of the nested opening is a preset distance. The lower end of the adjusting column is located in the first slot. The upper end of the collimating lens group extends into the lower end of the adjusting column and is detachably connected to the adjusting column. The first elastic member is disposed between the adjusting column and the bottom wall of the housing, and the first elastic member is sleeved on the outside of the collimating lens group. The first elastic member is in a compressed state, and the upper end of the adjusting column abuts against the top cover.

[0006] Optionally, the lower end of the adjusting column is cylindrical, and the ratio between the diameter of the lower end of the adjusting column and the diameter of the first empty groove conforms to the H5 / H6 fitting tolerance.

[0007] Optionally, the cylindrical lens assembly includes: a cylindrical lens fixing block, a cylindrical lens fixing block mounting base, a screwing component, a second elastic component, and a cylindrical lens. The cylindrical lens fixing block abuts against the inner side of the upper arm of the top cover. The cylindrical lens is installed inside the cylindrical lens fixing block. The second elastic component is symmetrically arranged between the cylindrical lens fixing block and the cylindrical lens fixing block mounting base. The cylindrical lens fixing block has a second through hole at a position corresponding to the second elastic component. The screwing component is threaded into the second through hole. The length of the screwing component is greater than the length of the second through hole. The cylindrical lens fixing block and the cylindrical lens fixing block mounting base are located within the nested opening. The cylindrical lens fixing block mounting base is fixedly connected to the extension edge.

[0008] Optionally, a sealing ring groove is provided on the top cover at the position where it is threaded to the housing, and a sealing ring is embedded in the sealing ring groove.

[0009] Optionally, the second elastic element and / or the sealing ring may be made of fluororubber.

[0010] Optionally, it also includes: a lens assembly locking nut, which is located between the adjusting column and the first elastic element, and is threaded onto the collimating lens assembly.

[0011] Optionally, it also includes: a laser lamp mounting base, which is sleeved on the outside of the housing and located between the extension edge and the locking member, and the laser lamp mounting base is provided with mounting holes.

[0012] Optionally, it also includes: a positioning pin, wherein the laser lamp mounting base is provided with a positioning hole that matches the positioning pin, and the extension edge is provided with a positioning groove that matches the positioning pin.

[0013] The adjustable-focus laser light provided in this application comprises a top cover, a housing, an adjusting column, a locking component, a cylindrical lens assembly, a collimating lens group, a first elastic element, and a laser light assembly. The laser light assembly includes a laser light source. The first elastic element is installed between the adjusting column and the bottom wall of the housing, and is sleeved on the outside of the collimating lens group. By setting the first elastic element to a compressed state, the upper end of the adjusting column abuts against the top cover under the action of the first elastic element. Thus, when the top cover is rotated, the adjusting column moves with the top cover. Since the collimating lens group is fixedly connected to the adjusting column, the collimating lens group moves with the adjusting column, thereby achieving the purpose of adjusting the focus by rotating the top cover. The operation is simple, and the focus adjustment through a mechanical structure has stronger anti-interference capabilities compared to laser lights with automatic focus adjustment, making it suitable for complex and harsh environments. Furthermore, adjusting the focus by rotating the top cover is also suitable for scenarios where the working distance frequently changes and frequent focus adjustments are required. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of an adjustable-focus laser lamp provided in an embodiment of this application; Figure 2 Provided for an embodiment of this application Figure 1 Sectional view of AA; Figure 3 This is a front view of a cylindrical lens assembly provided in an embodiment of this application; Figure 4 Provided for an embodiment of this application Figure 3 Sectional view of BB; Figure 5 This is a schematic diagram of the structure of a laser lamp assembly provided in one embodiment of this application. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0017] like Figure 1 , Figure 2 and Figure 5As shown, the adjustable focal length laser light includes: a top cover 1, a housing 2, an adjustment column 3, a locking element 4, a cylindrical lens assembly 5, a collimating lens group 6, a first elastic element 7, and a laser light assembly, the laser light assembly including a laser light source 81; The upper end of the housing 2 is provided with an extension edge 21, and the top cover 1 is threadedly connected to the extension edge 21. A first cylindrical slot 22 is opened inside the housing 2, and a circular through hole coaxial with the first slot 22 is opened inside the bottom wall of the housing 2. The lower end of the housing 2 is detachably connected to the locking member 4. The locking member 4 has a second slot 41. The laser lamp assembly is fixed on the outer side of the bottom wall of the housing 2 and located in the second slot 41. The laser lamp light source extends into the circular through hole. The upper end of the adjusting column 3 extends out of the housing 2 and is provided with a nested opening 31. The cylindrical lens assembly 5 is installed in the nested opening 31 and is fixedly connected to the extension edge 21. The distance between the bottom end of the cylindrical lens assembly 5 and the bottom end of the nested opening 31 is a preset distance. The lower end of the adjusting column 3 is located in the first empty slot 22. The upper end of the collimating lens assembly 6 extends into the lower end of the adjusting column 3 and is detachably connected to the adjusting column 3 (e.g., by thread). The first elastic element 7 is provided between the adjusting column 3 and the bottom wall of the housing 2, and the first elastic element 7 is sleeved on the outside of the collimating lens assembly 6. The first elastic element 7 is in a compressed state. The upper end of the adjusting column 3 abuts against the top cover 1.

[0018] In this embodiment, the laser light assembly includes a laser light source 81 and a control circuit 82. The control circuit 82 can refer to the prior art and will not be described in detail here. The laser light source 81 is a laser diode.

[0019] The first elastic element 7 can be a spring.

[0020] Structurally, the upper extension 21 of the housing 2 is threaded to the top cover 1, and the lower end is detachably connected to the locking member 4. The housing 2 is provided with a cylindrical first slot 22, which forms a space to accommodate the adjusting column 3, the locking member 4, the cylindrical lens assembly 5, the collimating lens assembly 6, the spring, and the laser lamp assembly. The laser lamp assembly is fixed to the outer side of the bottom wall of the housing 2 by a cross-head screw 13.

[0021] The upper end of the adjusting column 3 extends out of the housing 2, and the lower end is located in the first slot 22, allowing it to slide up and down within the slot. The lower end of the adjusting column 3 is provided with a connecting hole, and the upper end of the collimating lens assembly 6 extends into the connecting hole and is threadedly connected to the adjusting column 3. When the adjusting column 3 slides up and down within the first slot 22, it can drive the collimating lens assembly 6 to slide up and down within the first slot 22.

[0022] The lower end of the adjusting column 3 is also connected to a spring, and the spring is sleeved outside the collimating lens assembly 6. The spring is in a compressed state, and the lower end of the spring extends out of the collimating lens assembly 6 and abuts against the inner side of the bottom wall of the housing 2, so that the spring can continuously output an upward force on the adjusting column 3, so that one end of the adjusting column 3 abuts against the top cover 1.

[0023] The upper end of the adjusting column 3 is provided with a nested opening 31. The cylindrical lens assembly 5 is installed in the nested opening 31 and extends into the first empty slot 22. The distance between the bottom end of the cylindrical lens assembly 5 and the bottom end of the nested opening 31 is a preset distance. The preset distance is related to the sliding distance of the adjusting column 3, which is related to the working distance of the laser lamp. For example, when the working distance of the laser lamp is 1m-4m, when the working distance is 1m, the distance between the bottom end of the cylindrical lens assembly 5 and the bottom end of the nested opening 31 is 2.1mm; when the working distance is 4m, the distance between the bottom end of the cylindrical lens assembly 5 and the bottom end of the nested opening 31 is 4.1mm. Therefore, the preset distance needs to be greater than or equal to 4.1mm, so that the adjusting column 3 has space to slide up and down in the first empty slot 22.

[0024] The cylindrical lens assembly 5 is fixedly installed on the extension edge 21 at the upper end of the housing 2. By fixing the cylindrical lens assembly 5 to the extension edge 21, the adjusting column 3 can be limited to prevent the adjusting column 3 from falling off when the top cover 1 is removed from the housing 2.

[0025] The bottom wall of the housing 2 has a circular through hole for mounting a laser diode. Optionally, the diameter of the circular through hole is smaller than the diameter of the empty slot.

[0026] It should be noted that the top cover 1 and the cylindrical lens assembly 5 are provided with light-transmitting holes. The light-transmitting holes are coaxial with the first slot 22, the circular through hole, the adjusting column 3, and the collimating lens group 6, and the laser diode is located at the center of the axis. In this way, the laser emitted by the laser diode can pass through the collimating lens group 6, the adjusting column 3, the cylindrical lens assembly 5 and the top cover 1 to emit laser light.

[0027] In terms of working principle, after the laser lamp is fixed, the laser diode is turned on, the laser diode emits laser light, and after the laser light is converted into parallel light by the collimating lens group 6, the parallel light is converted into a straight and clear straight laser line by the cylindrical lens assembly 5.

[0028] When switching working distances, focusing is required. At this time, the housing 2 remains stationary, and the top cover 1 is manually rotated. Because the first elastic element 7 is compressed, the adjusting column 3 moves vertically as the position of the top cover 1 changes. Since the cylindrical lens assembly 5 is fixedly mounted on the extension edge 21 at the upper end of the housing 2, the cylindrical lens assembly 5 does not move and limits the adjusting column 3, preventing it from sliding out of the first slot 22. Furthermore, because there is space between the bottom end of the cylindrical lens assembly 5 and the bottom end of the nested opening 31, under the action of the first elastic element 7, the upper end of the adjusting column 3 remains in contact with the top cover 1, effectively changing the distance between the adjusting column 3 and the laser diode.

[0029] Since the collimating lens group 6 is fixedly connected to the adjusting column 3, when the adjusting column 3 moves upward, the collimating lens group 6 moves upward accordingly; when the adjusting column 3 moves downward, the collimating lens group 6 moves downward accordingly. Therefore, by rotating the top cover 1, the distance between the collimating lens group 6 and the laser diode is adjusted, thus achieving the purpose of focusing.

[0030] In order to facilitate the rotation of the top cover 1, the top cover 1 can be equipped with a non-slip knurled knob to increase the friction between the hand and the top cover 1, making it easier to rotate.

[0031] Optionally, a sealing groove is provided at the position where the top cover 1 is threaded to the housing 2, and a sealing ring 8 is embedded in the sealing groove. The sealing ring 8 is a fluororubber O-ring, which can provide a damping feel when rotating the top cover 1 and improve the focusing accuracy.

[0032] In this embodiment, a top cover 1, a housing 2, an adjusting column 3, a locking member 4, a cylindrical lens assembly 5, a collimating lens group 6, a first elastic member 7, and a laser light assembly are provided. The laser light assembly includes a laser light source. The first elastic member 7 is installed between the adjusting column 3 and the bottom wall of the housing 2, and is sleeved on the outside of the collimating lens group 6. By setting the first elastic member 7 to a compressed state, the upper end of the adjusting column 3 abuts against the top cover 1 under the action of the first elastic member 7. Thus, when the top cover 1 is rotated, the adjusting column 3 moves with the top cover 1. Since the collimating lens group 6 is fixedly connected to the adjusting column 3, the collimating lens group 6 moves with the adjusting column 3, thereby achieving the purpose of adjusting the focal length by rotating the top cover 1. The operation is simple, and the focal length adjustment through the mechanical structure has stronger anti-interference ability than the laser light with automatic focal length adjustment, and is suitable for complex and harsh environments. Furthermore, adjusting the focal length by rotating the top cover 1 is also suitable for scenarios where the working distance frequently changes and the focal length needs to be adjusted frequently.

[0033] Optionally, the lower end of the adjusting column 3 is cylindrical, and the ratio between the diameter of the lower end of the adjusting column 3 and the diameter of the first slot 22 conforms to the H5 / H6 fitting tolerance. During focusing, the adjusting column 3 needs to move up and down within the first slot 22. To facilitate the movement of the adjusting column 3, its lower end is made cylindrical. Furthermore, setting the ratio between the diameter of the lower end of the adjusting column 3 and the diameter of the first slot 22 to conform to the H5 / H6 fitting tolerance allows the adjusting column 3 to slide freely within the first slot 22 without excessive wobbling, ensuring the stability of the laser lamp focusing.

[0034] Optional, such as Figure 3 and Figure 4 As shown, the cylindrical lens assembly 5 includes: a cylindrical lens fixing block 51, a cylindrical lens fixing block mounting base 52, a screwing component 53, a second elastic component 54, and a cylindrical lens 55. The cylindrical lens 55 is installed inside the cylindrical lens fixing block 51. The second elastic component 54 is symmetrically arranged between the cylindrical lens fixing block 51 and the cylindrical lens fixing block mounting base 52. The cylindrical lens fixing block 51 has a second through hole at a position corresponding to the second elastic component 54. A screwing component 53 (such as a screw, which is threadedly connected to the second through hole) is connected inside the second through hole. The length of the screwing component 53 is greater than the length of the second through hole. The cylindrical lens fixing block 51 and the cylindrical lens fixing block mounting base 52 are located inside the nested opening 31. The cylindrical lens fixing block mounting base 52 is fixedly connected to the extension edge.

[0035] In this embodiment, the cylindrical lens fixing block 51 and the cylindrical lens fixing block mounting base 52 are located inside the nested opening 31. The cylindrical lens fixing block mounting base 52 is fixedly connected to the extension edge 21 by the screwing component 53, so as to fix the cylindrical lens assembly 5 on the housing 2.

[0036] The second elastic element 54 needs to have an elastic recovery function. When a force is applied to it, the thickness of the second elastic element 54 decreases; when the force decreases or disappears, the thickness of the elastic element recovers. The second elastic elements 54 are symmetrically arranged between the cylindrical mirror fixing block 51 and the cylindrical mirror fixing block mounting base 52, allowing adjustment of the distance between them. The second elastic element 54 can be made of fluororubber, which has better high-temperature resistance and corrosion resistance, making the laser lamp more suitable for applications in high-temperature and corrosive gas environments, such as tire manufacturing.

[0037] Correspondingly, there is a second through hole on the cylindrical mirror fixing block 51 at the position corresponding to the second elastic element 54. A screwing element 53 is threaded into the second through hole. The length of the screwing element 53 is greater than the length of the second through hole. In this way, the screwing element 53 can apply force to the second elastic element 54.

[0038] The cylindrical mirror 55 is placed horizontally inside the cylindrical mirror fixing block 51. The second elastic element 54 is arranged along the length of the cylindrical mirror 55. When the cylindrical mirror 55 is not placed horizontally, the force applied to the second elastic element 54 is adjusted by adjusting the length of the bottom end of one of the screwing parts 53 extending out of the second through hole. This adjusts the distance between the cylindrical mirror fixing block 51 and the cylindrical mirror fixing block mounting base 52 at the end of the screwing part 53, thereby adjusting the position of one end of the cylindrical mirror 55 so that the cylindrical mirror 55 is placed horizontally, thus achieving the purpose of adjusting the straightness of the laser lamp.

[0039] Optionally, such as Figure 1 and Figure 2 As shown, the adjustable focal length laser lamp also includes: a lens group locking nut 9, which is located between the adjusting column 3 and the first elastic element 7, and is threaded onto the collimating lens group 6.

[0040] In this embodiment, when the adjustable focal length laser lamp is used for a long time, the connection between the collimating lens group 6 and the adjusting column 3 may become loose. Therefore, a lens group locking nut 9 is installed between the adjusting column 3 and the first elastic member 7, and the lens group locking nut 9 is connected along the circumferential thread of the collimating lens group 6. In this way, when the connection between the collimating lens group 6 and the adjusting column 3 becomes loose, the laser lamp is disassembled, the adjusting column 3 and the collimating lens group 6 are taken out from the housing 2, and the lens group locking nut 9 is turned to apply an upward force to the collimating lens group 6, making the connection between the collimating lens group 6 and the adjusting column 3 more stable.

[0041] Optionally, such as Figure 1 and Figure 2 As shown, the adjustable focal length laser lamp also includes a laser lamp mounting base 10, which is sleeved on the outside of the housing 2 and located between the extension edge 21 and the locking member 4. The laser lamp mounting base 10 is provided with mounting holes.

[0042] In this embodiment, the laser lamp mounting base 10 facilitates the fixing of the laser lamp to other components during use, making it convenient to use. The mounting holes are used to fix the laser lamp to other components.

[0043] Optionally, such as Figure 1 and Figure 2 As shown, the adjustable focal length laser lamp also includes: a positioning pin 11, a first positioning groove matching the positioning pin 11 on the laser lamp mounting base 10, and a second positioning groove matching the positioning pin 11 on the extension edge 21.

[0044] In this embodiment, when using a laser lamp, if it is necessary to install the laser lamp on other components, the laser lamp mounting base 10 can be fixed to the other components first. Then, the assembled top cover 1, housing 2, adjusting column 3, cylindrical lens assembly 5, collimating lens assembly 6, first elastic element 7, and laser lamp assembly can be placed on the laser lamp mounting base. To facilitate installation, positioning pins 11 are used for positioning. Correspondingly, a first positioning groove matching the positioning pin 11 is provided on the laser lamp mounting base 10, and a second positioning groove matching the positioning pin 11 is provided on the extension edge 21. The two ends of the positioning pin 11 are respectively installed in the first positioning groove and the second positioning groove, so that the positioning pin can be fixed on the laser lamp mounting base or on the extension edge 21. After placing the assembled top cover 1, housing 2, adjusting column 3, cylindrical lens assembly 5, collimating lens assembly 6, first elastic element 7, and laser lamp assembly on the laser lamp mounting base using the positioning pins, the locking element 4 is connected to the housing 2 to complete the installation of the laser lamp.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A laser light with adjustable focus, characterized in that, include: The components include a top cover, a housing, an adjusting column, a locking element, a cylindrical lens assembly, a collimating lens group, a first elastic element, and a laser light assembly, wherein the laser light assembly includes a laser light source. The upper end of the housing is provided with an extension edge, the top cover is threadedly connected to the extension edge and is also provided with an extension edge, the housing is provided with a first cylindrical slot, and the bottom wall of the housing is provided with a circular through hole coaxial with the first slot. The lower end of the housing is detachably connected to the locking member. The locking member has a second slot. The laser light assembly is fixed on the outer side of the bottom wall of the housing and is located in the second slot. The laser light source extends into the circular through hole. The upper end of the adjusting column extends out of the housing and is provided with a nested opening. The cylindrical lens assembly is installed in the nested opening and is fixedly connected to the extension edge. The distance between the bottom end of the cylindrical lens assembly and the bottom end of the nested opening is a preset distance. The lower end of the adjusting column is located in the first slot. The upper end of the collimating lens group extends into the lower end of the adjusting column and is detachably connected to the adjusting column. The first elastic member is disposed between the adjusting column and the bottom wall of the housing, and the first elastic member is sleeved on the outside of the collimating lens group. The first elastic member is in a compressed state, and the upper end of the adjusting column abuts against the top cover.

2. The adjustable-focus laser lamp according to claim 1, characterized in that, The lower end of the adjusting column is cylindrical, and the ratio between the diameter of the lower end of the adjusting column and the diameter of the first empty groove conforms to the H5 / H6 fitting tolerance.

3. The adjustable focal length laser lamp according to claim 1, characterized in that, The cylindrical lens assembly includes: a cylindrical lens fixing block, a cylindrical lens fixing block mounting base, a screwing component, a second elastic component, and a cylindrical lens. The cylindrical lens is installed inside the cylindrical lens fixing block. The second elastic component is symmetrically arranged between the cylindrical lens fixing block and the cylindrical lens fixing block mounting base. The cylindrical lens fixing block has a second through hole at a position corresponding to the second elastic component. The screwing component is threaded into the second through hole. The length of the screwing component is greater than the length of the second through hole. The cylindrical lens fixing block and the cylindrical lens fixing block mounting base are located within the nested opening. The cylindrical lens fixing block mounting base is fixedly connected to the extension edge.

4. The adjustable-focus laser lamp according to claim 3, characterized in that, A sealing ring groove is provided at the position where the top cover is threaded to the housing, and a sealing ring is embedded in the sealing ring groove.

5. The adjustable-focus laser lamp according to claim 4, characterized in that, The second elastic element and / or the sealing ring are made of fluororubber.

6. The adjustable-focus laser lamp according to claim 1, characterized in that, Also includes: A lens assembly locking nut is located between the adjusting column and the first elastic element, and is threaded onto the collimating lens assembly.

7. The adjustable-focus laser lamp according to any one of claims 1-6, characterized in that, Also includes: A laser lamp mounting base is sleeved on the outside of the housing and located between the extension edge and the locking member. The laser lamp mounting base is provided with mounting holes.

8. The adjustable-focus laser lamp according to claim 7, characterized in that, Also includes: The laser lamp mounting base is provided with a first positioning groove that matches the positioning pin, and the extension edge is provided with a second positioning groove that matches the positioning pin.

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