Microlens zoom honeycomb dot array handle

Abstract

The application relates to the technical field of medical cosmetology, in particular to a microlens zooming honeycomb dot array handle which comprises a locking end, a mounting end and a lens group. The locking end comprises a handle tail cylinder and a locking piece, and the locking piece is arranged in the handle tail cylinder. The mounting end comprises a fixing cylinder, a rotating cylinder and an adjusting piece, the fixing cylinder is fixedly connected with the handle tail cylinder, the rotating cylinder is sleeved on the fixing cylinder, the adjusting piece is arranged in the fixing cylinder, and the adjusting piece penetrates through the fixing cylinder and is connected with the rotating cylinder. The lens group comprises a lattice lens and a microlens array, the lattice lens is fixedly connected with one side of the handle tail cylinder close to the mounting end, the microlens array is fixedly connected with the adjusting piece, and the lattice lens is a condensing lens. The side of the microlens array close to the lattice lens is uniformly provided with a plurality of arc protrusions. The lattice lens is used for converting a fiber beam into a collimated beam, and then the arc protrusions of the microlens array are used for forming a uniform hexagonal lattice light spot. The application has the effect that the light spot energy is more uniform.

Description

Technical Field

[0001] This application relates to the technical field of medical aesthetics, and in particular to a microlens zoom honeycomb dot matrix handle. Background Technology

[0002] Laser technology is increasingly being applied in the field of medical aesthetics, and the therapeutic effects of lasers on the skin have become a major focus of attention in this field. In laser treatments, the treatment handpiece is a core operating component, requiring operators to dynamically adjust the laser spot diameter according to different treatment areas. Precise control of optical parameters allows for optimized energy density distribution per unit area. This functional requirement makes the adjustable spot system a key technological module of the treatment handpiece, as its adjustment precision directly impacts clinical efficacy and treatment safety.

[0003] A laser shaping system, currently announced under CN216696893U, includes a semiconductor laser to be shaped, a collimating single lens, and a scattering sheet arranged sequentially along the optical path. The laser shaping system uses the collimating single lens to collimate the diverging laser beam, resulting in an elliptical laser spot.

[0004] Regarding the aforementioned technologies, both collimating single lenses and diffusers are spherical lenses. However, traditional spherical lenses themselves have a severe spherical aberration problem. Spherical aberration causes uneven light spots to form after light passes through the spherical lens, eventually leading to excessively high local energy in the formed light spots, which can damage normal human tissues. Utility Model Content

[0005] To make the light spot energy more uniform and improve the user experience, this application provides a microlens zoom honeycomb dot matrix handle.

[0006] The microlens zoom honeycomb dot matrix handle provided in this application adopts the following technical solution: A microlens zoom honeycomb dot matrix handle, comprising: The locking end includes a handle tail tube and a locking member, wherein the locking member is installed inside the handle tail tube and is used to lock the optical fiber inserted into the handle tail tube; The mounting end includes a fixed cylinder, a rotating cylinder, and an adjusting component. The fixed cylinder is fixedly connected to the handle tail cylinder. The rotating cylinder is sleeved on the fixed cylinder. The adjusting component is installed inside the fixed cylinder and extends out of the fixed cylinder to connect with the rotating cylinder, so that when the rotating cylinder is rotated, the adjusting component is driven to move along the axial direction of the fixed cylinder. The lens assembly includes a lattice lens and a microlens array. The lattice lens is fixedly connected to the side of the handle tail tube near the mounting end, and the microlens array is fixedly connected to the adjustment component. The lattice lens is a focusing lens to convert the light beam transmitted by the optical fiber into a collimated light beam. The microlens array has several arc-shaped protrusions evenly distributed on the side near the lattice lens.

[0007] By adopting the above technical solution, the optical fiber is fixed by the handle tail cylinder and locking device at the locking end. When the optical fiber transmits a beam, the optical fiber beam is converted into a collimated beam by the lattice lens. Then, the arc protrusion of the microlens array is used to form a uniform hexagonal lattice light spot, and the energy density of each lattice unit is the same, so that the energy of the light spot is more uniform.

[0008] Meanwhile, by rotating the rotating cylinder, the rotating cylinder drives the adjusting component to move along the axis of the fixed cylinder, thereby controlling the microlens array to move closer to or further away from the lattice lens, so that the light spot is magnified or reduced. The hexagonal lattice has the characteristics of six-fold axial symmetry, unit array and planar stacking, which ensures that the light spot is consistent during the magnification and reduction process.

[0009] Optionally, a window lens is installed at the opening on the side of the fixed cylinder away from the locking end, and the window lens is a convex lens.

[0010] By adopting the above technical solution, the window plate can further focus the light beam and improve the light output efficiency. At the same time, it can also prevent dust and other foreign objects from entering the lens group and effectively prevent light beam interference.

[0011] Optionally, the locking component includes a cable sleeve, a locking sleeve, and a rear plug, all fitted onto the optical fiber. The cable sleeve has a tension groove, and one end of the cable sleeve is inserted into the locking sleeve to tighten the tension groove. The locking sleeve abuts against the fixed cylinder, and the rear plug is located at the end of the cable sleeve away from the locking sleeve, and the rear plug abuts against the handle tail cylinder.

[0012] By adopting the above technical solution, after the cable sleeve, locking sleeve and back plug are placed on the optical fiber, the cable sleeve is used to squeeze the locking sleeve to lock the optical fiber. At the same time, the back plug limits the position of the cable sleeve and locking parts to prevent the locking sleeve from loosening, thus ensuring the stability of the optical fiber fixation.

[0013] Optionally, the adjusting component includes a sliding sleeve and a sliding pin. A sliding hole is provided on the fixed cylinder along the axial direction. A spiral sleeve is installed inside the rotating cylinder. A spiral groove is provided on the spiral sleeve. The sliding sleeve is located inside the fixed cylinder. The microlens array is fixedly connected to the sliding sleeve. The sliding pin passes through the sliding hole and into the spiral groove.

[0014] By adopting the above technical solution, the rotating cylinder is driven to rotate, which in turn drives the spiral sleeve to rotate. The rotation of the spiral sleeve causes the sliding pin to move smoothly under the drive of the inner wall of the spiral groove. When the sliding pin moves in the spiral groove, it moves closer to or away from the lattice lens at the limit of the sliding hole, thereby driving the microlens array on the sliding sleeve to move closer to or away from the lattice lens.

[0015] Optionally, multiple sliding pins are provided, and the multiple sliding pins are symmetrically arranged about the sliding sleeve, and the sliding hole and the spiral sleeve are arranged in a one-to-one correspondence with the sliding pin.

[0016] By adopting the above technical solution, multiple symmetrically arranged sliding pins can be evenly stressed, avoiding jamming and improving the smoothness of movement.

[0017] Optionally, a fixing groove is provided on the fixing cylinder, and a corresponding pin groove is provided on the spiral sleeve, with a retaining pin inserted between the fixing groove and the pin groove.

[0018] By adopting the above technical solution, the positions of the fixing cylinder and the spiral sleeve are fixed by utilizing the cooperation of the fixing groove, the pin groove and the locking pin.

[0019] Optionally, the mounting end is further provided with a positioning element, which is used to position the fixed cylinder and the spiral sleeve.

[0020] By adopting the above technical solution and setting the positioning component, when the rotating cylinder is adjusted to the appropriate position, the positioning component will position the spiral sleeve, thus preventing the spiral sleeve from rotating during operation and causing the light spot to be magnified or reduced.

[0021] Optionally, the positioning element includes a top block and an elastic element. The fixed cylinder has an installation groove, the top block is installed in the installation groove, and the elastic element is installed between the installation groove and the top block to drive the top block to pass through the installation groove. The spiral sleeve has a plurality of positioning grooves around its own axis at one end near the top block, and the elastic element drives the top block to be inserted into the positioning groove.

[0022] By adopting the above technical solution, the rotating cylinder is rotated, and the rotating cylinder synchronously drives the spiral sleeve to rotate. The rotation of the spiral sleeve causes the top block to disengage from a positioning groove. The top block drives the elastic element to compress. When the spiral sleeve rotates to the appropriate position, the elastic element drives the top block to pass out from the mounting groove and engage with the positioning groove, thereby completing the positioning of the spiral sleeve.

[0023] Optionally, an adjusting screw is installed at the bottom of the mounting groove, and the elastic element abuts against the adjusting screw.

[0024] By adopting the above technical solution, adjusting the setting of the set screw makes the elastic preload of the elastic element adjustable, adapting to different elastic requirements.

[0025] Optionally, a safety bracket is fixedly connected to the side of the mounting end away from the locking end.

[0026] By adopting the above technical solution, the safety bracket ensures that the lens group maintains a safe distance from the human body.

[0027] In summary, this application includes at least one of the following beneficial technical effects: By combining the handle tail tube, locking device, fixing tube, rotating tube, adjusting device, lattice lens and microlens array, when the optical fiber transmits the beam, the lattice lens is used to convert the optical fiber beam into a collimated beam, and then the arc protrusion of the microlens array is used to form a uniform hexagonal lattice light spot, and the energy density of each lattice unit is the same, thereby achieving a more uniform light spot energy. The fixed cylinder, rotating cylinder, spiral sleeve, sliding sleeve, sliding pin, sliding hole and spiral groove are combined to drive the rotating cylinder to rotate and drive the spiral sleeve to rotate. The rotation of the spiral sleeve causes the sliding pin to move smoothly under the drive of the inner wall of the spiral groove, thereby achieving the effect of driving the sliding sleeve to move smoothly. By cooperating with the fixed cylinder, mounting groove, spiral sleeve, positioning groove, top block, and elastic element, the elastic element drives the top block to pass through the mounting groove and engage with the positioning groove, thereby achieving the positioning effect of the spiral sleeve. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a microlens zoom honeycomb dot matrix handle in an embodiment of this application.

[0029] Figure 2 yes Figure 1 Sectional view at point AA.

[0030] Figure 3 This is an exploded view of a microlens zoom honeycomb dot matrix handle according to an embodiment of this application.

[0031] Figure 4 This is a schematic diagram illustrating the principle of using a microlens array and a window lens to homogenize the beam in the embodiments of this application.

[0032] Figure 5 This is a schematic diagram of the hexagonal lattice light spot after the beam is homogenized in the embodiments of this application.

[0033] Explanation of reference numerals in the attached figures: 1. Locking end; 11. Handle tail tube; 12. Locking component; 121. Cable sleeve; 122. Locking sleeve; 123. Rear plug; 124. Tensioning groove; 2. Mounting end; 21. Fixing cylinder; 211. Sliding hole; 212. Mounting groove; 22. Rotating cylinder; 221. Fixing groove; 23. Adjusting component; 231. Sliding sleeve; 232. Sliding pin; 24. Spiral sleeve; 241. Spiral groove; 242. Positioning groove; 243. Pin groove; 3. Lens group; 31. Lattice lens; 32. Microlens array; 33. Arc protrusion; 4. Window lens; 5. Safety bracket; 6. Positioning component; 61. Top block; 62. Elastic component; 7. Adjusting top screw; 8. Locking pin. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a microlens zoom honeycomb dot matrix handle.

[0036] Reference Figure 1-5 A microlens zoom honeycomb dot matrix handle includes a locking end 1, a mounting end 2, and a lens assembly 3. The locking end 1 includes a handle tail cylinder 11 and a locking element 12, with the locking element 12 installed inside the handle tail cylinder 11. The mounting end 2 includes a fixed cylinder 21, a rotating cylinder 22, and an adjusting element 23. The fixed cylinder 21 is fixedly connected to the handle tail cylinder 11, the rotating cylinder 22 is sleeved on the fixed cylinder 21, and the adjusting element 23 is installed inside the rotating cylinder 22, extending out of the fixed cylinder 21 and connecting to the rotating cylinder 22. The lens assembly 3 includes a lattice lens 31 and a microlens array 32. The lattice lens 31 is fixedly connected to the side of the handle tail cylinder near the mounting end 2, and the microlens array 32 is fixedly connected to the adjusting element 23. The lattice lens 31 is a condensing lens. Several arc-shaped protrusions 33 are evenly distributed on the side of the microlens array 32 near the lattice lens 31. The fiber beam is converted into a collimated beam using a lattice lens 31, and then a uniform hexagonal lattice light spot is formed using the arc protrusions 33 of the microlens array 32, with each lattice unit having the same energy density, thus making the light spot energy more uniform.

[0037] Traditional handheld zoom lenses produce circular beams. When zooming in on the beam with the handheld lens, the beam has a certain divergence angle, resulting in a predominantly circular diffused beam, making it difficult to ensure beam consistency. This application achieves beam shaping through the differential units of the lattice lens 31 and the microlens array 32, transforming the circular beam emitted from the optical fiber into a hexagonal lattice beam, with each lattice unit having the same energy density.

[0038] The locking component 12 includes a cable sleeve 121 fitted onto the optical fiber, a locking sleeve 122, and a rear plug 123. The cable sleeve 121 has a tension groove 124, which automatically locks optical fibers of different diameters. One end of the cable sleeve 121 is inserted into the locking sleeve 122, causing the tension groove 124 to tighten, thus locking the optical fiber. The end of the locking sleeve 122 away from the cable sleeve 121 abuts against the fixed cylinder 21. The rear plug 123 is located at the end of the cable sleeve 121 away from the locking sleeve 122 and abuts against the handle tail cylinder 11. By having the cable sleeve 121 abut against the fixed cylinder 21 and the rear plug 123 abut against the handle tail cylinder 11, the positions of the cable sleeve 121, locking sleeve 122, and rear plug 123 are locked, thereby locking the optical fiber inserted into the handle tail cylinder 11.

[0039] After the cable sleeve 121, locking sleeve 122 and rear plug 123 are fitted onto the optical fiber, the cable sleeve 121 is used to press the locking sleeve 122 to lock the optical fiber. At the same time, the rear plug 123 limits the position of the cable sleeve 121 and the locking element 12 to prevent the locking sleeve 122 from loosening, thus ensuring the stability of the optical fiber fixation.

[0040] A window lens 4 is installed at the opening on the side of the fixed cylinder 21 away from the locking end 1. The window lens 4 can prevent dust and other foreign objects from entering the lens group 3, effectively preventing beam interference. In an optional embodiment, the window lens 4 is a convex lens, and the window can further focus the beam and improve the light output efficiency.

[0041] In an optional embodiment, a safety bracket 5 is fixedly connected to the side of the mounting end 2 away from the locking end 1. The safety bracket 5 ensures that the lens group 3 is kept at a safe distance from the human body, preventing the lens group 3 from getting too close to the human body and causing injury.

[0042] The adjusting component 23 includes a sliding sleeve 231 and a sliding pin 232. A sliding hole 211 is provided on the fixed cylinder 21 along the axial direction. A spiral sleeve 24 is installed inside the rotating cylinder 22. A spiral groove 241 is spirally provided on the spiral sleeve 24. The sliding sleeve 231 is located inside the fixed cylinder 21. The microlens array 32 is fixedly connected to the sliding sleeve 231, so that the sliding sleeve 231 drives the microlens array 32 to slide. The sliding pin 232 passes through the sliding hole 211 and into the spiral groove 241.

[0043] The rotating cylinder drives the spiral sleeve 24 to rotate. The rotation of the spiral sleeve 24 causes the sliding pin 232 to move smoothly under the drive of the inner wall of the spiral groove 241. When the sliding pin 232 moves in the spiral groove 241, it moves closer to or away from the lattice lens 31 at the limit of the sliding hole 211, thereby driving the microlens array 32 on the sliding sleeve 231 to move closer to or away from the lattice lens 31.

[0044] Multiple sliding pins 232 are provided. In this embodiment, two sliding pins 232 are provided. The two sliding pins 232 are symmetrically arranged about the sliding sleeve 231, and the sliding hole 211 and the spiral sleeve 24 are corresponding to the sliding pins 232 one by one. The two symmetrically arranged sliding pins 232 can make the sliding sleeve 231 bear force evenly, avoid jamming, and improve the smoothness of movement.

[0045] The mounting end 2 is also equipped with a positioning element 6. In this embodiment, the positioning element 6 includes a top block 61 and an elastic element 62. The elastic element 62 is a spring. The fixing cylinder 21 has a mounting groove 212. The top block 61 is installed in the mounting groove 212. The elastic element 62 is installed between the mounting groove 212 and the top block 61 to drive the top block 61 to pass through the mounting groove 212. The end of the spiral sleeve 24 near the top block 61 has several positioning grooves 242 around its own axis. The elastic element 62 drives the top block 61 to be inserted into the positioning grooves 242. The positioning element 6 is used to fix the cylinder 21 and the spiral sleeve 24 for positioning, so that when the spiral sleeve 24 is adjusted to a suitable position, the rotation of the spiral sleeve 24 during operation will not cause the size of the light spot to change.

[0046] By rotating the rotating cylinder 22, the rotating cylinder 22 drives the spiral sleeve 24 to rotate. The rotation of the spiral sleeve 24 causes the top block 61 to disengage from a positioning groove 242. The top block 61 drives the elastic element 62 to compress. When the spiral sleeve 24 rotates to the appropriate position, the elastic element 62 drives the top block 61 to pass out from the mounting groove 212 and engage with the positioning groove 242, thereby completing the positioning of the spiral sleeve 24.

[0047] In an optional embodiment, an adjusting screw 7 is installed at the bottom of the mounting groove 212, and the elastic element 62 abuts against the adjusting screw 7. The adjusting screw 7 allows the elastic preload of the elastic element 62 to be adjusted, thereby adapting to different elasticity requirements.

[0048] The rotating cylinder 22 has a fixing groove 221, and the screw sleeve 24 has a corresponding pin groove 243. A locking pin 8 is inserted between the fixing groove 221 and the pin groove 243. The fixing cylinder 21 is fitted onto the screw sleeve 24, and then the fixing groove 221 is aligned with the pin groove 243. The locking pin 8 is then inserted between the fixing groove 221 and the pin groove 243, thereby fixing the position of the fixing cylinder 21 and the screw sleeve 24.

[0049] The laser light from semiconductor lasers generally exhibits a Gaussian distribution, which needs to be homogenized by an optical system. Compared with traditional single spherical mirrors, this application uses a microlens array 32 and utilizes the arc protrusions 33 on the plane of the microlens array 32 for homogenization, resulting in a better homogenization effect.

[0050] The implementation principle of a microlens zoom honeycomb dot matrix handle in this application embodiment is as follows: the optical fiber is fixed by the handle tail cylinder 11 and locking member 12 of the locking end 1. When the optical fiber transmits a light beam, the optical fiber light beam is converted into a collimated light beam by the lattice lens 31. Then, the arc protrusion 33 of the microlens array 32 is used to form a uniform hexagonal lattice light spot, and the energy density of each lattice unit is the same, so that the light spot energy is more uniform.

[0051] The rotating cylinder drives the spiral sleeve 24 to rotate. The rotation of the spiral sleeve 24 causes the sliding pin 232 to move smoothly under the drive of the inner wall of the spiral groove 241. When the sliding pin 232 moves in the spiral groove 241 and moves closer to or away from the lattice lens 31 at the limit of the sliding hole 211, it drives the microlens array 32 on the sliding sleeve 231 to move closer to or away from the lattice lens 31, so that the light spot is magnified or reduced.

[0052] Simultaneously, by rotating the rotating cylinder 22, the top block 61 disengages from a positioning groove 242. The top block 61 drives the elastic element 62 to compress. When the rotating cylinder 22 rotates to the appropriate position, the elastic element 62 drives the top block 61 to pass through the mounting groove 212 and engage with the positioning groove 242, thus positioning the rotating cylinder 22.

[0053] The hexagonal lattice has the characteristics of six-fold axial symmetry, unit array and planar stacking, which ensures the consistency of the light spot during the process of magnification and reduction.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A microlens zoom honeycomb dot matrix handle, characterized in that, include: The locking end (1) includes a handle tail tube (11) and a locking member (12). The locking member (12) is installed inside the handle tail tube (11) and is used to lock the optical fiber inserted into the handle tail tube (11). The mounting end (2) includes a fixed cylinder (21), a rotating cylinder (22), and an adjusting member (23). The fixed cylinder (21) is fixedly connected to the handle tail cylinder (11). The rotating cylinder (22) is sleeved on the fixed cylinder (21). The adjusting member (23) is installed inside the fixed cylinder (21) and extends out of the fixed cylinder (21) to connect with the rotating cylinder (22), so that when the rotating cylinder (22) is rotated, the adjusting member (23) moves along the axial direction of the fixed cylinder (21). The lens group (3) includes a lattice lens (31) and a microlens array (32). The lattice lens (31) is fixedly connected to the side of the handle tail tube (11) near the mounting end (2). The microlens array (32) is fixedly connected to the adjusting member (23). The lattice lens (31) is a focusing lens to convert the light beam transmitted by the optical fiber into a collimated light beam. The microlens array (32) has several arc protrusions (33) evenly distributed on the side near the lattice lens (31).

2. The microlens zoom honeycomb dot matrix handle according to claim 1, characterized in that: A window lens (4) is installed at the opening on the side of the fixed cylinder (21) away from the locking end (1), and the window lens (4) is a convex lens.

3. The microlens zoom honeycomb dot matrix handle according to claim 1, characterized in that: The locking component (12) includes a cable sleeve (121) fitted on the optical fiber, a locking sleeve (122), and a rear plug (123). The cable sleeve (121) has a tension groove (124). One end of the cable sleeve (121) is inserted into the locking sleeve (122) to tighten the tension groove (124). The locking sleeve (122) abuts against the fixed cylinder (21). The rear plug (123) is located at the end of the cable sleeve (121) away from the locking sleeve (122) and abuts against the handle tail cylinder (11).

4. The microlens zoom honeycomb dot matrix handle according to claim 1, characterized in that: The adjusting component (23) includes a sliding sleeve (231) and a sliding pin (232). A sliding hole (211) is provided on the fixed cylinder (21) along the axial direction. A spiral sleeve (24) is installed inside the rotating cylinder (22). A spiral groove (241) is provided on the spiral sleeve (24). The microlens array (32) is fixedly connected to the sliding sleeve (231). The sliding sleeve (231) is located inside the fixed cylinder (21). The sliding pin (232) passes through the sliding hole (211) and into the spiral groove (241).

5. A microlens zoom honeycomb dot matrix handle according to claim 4, characterized in that: Multiple sliding pins (232) are provided, and the multiple sliding pins (232) are symmetrically arranged about the sliding sleeve (231). The sliding hole (211) and the spiral sleeve (24) are arranged in a one-to-one correspondence with the sliding pin (232).

6. A microlens zoom honeycomb dot matrix handle according to claim 4, characterized in that: The fixed cylinder (21) has a fixed groove (221), and the spiral sleeve (24) has a corresponding pin groove (243). A locking pin (8) is inserted between the fixed groove (221) and the pin groove (243).

7. A microlens zoom honeycomb dot matrix handle according to any one of claims 4-6, characterized in that: The mounting end (2) is also provided with a positioning element (6), which is used to position the fixed cylinder (21) and the spiral sleeve (24).

8. A microlens zoom honeycomb dot matrix handle according to claim 7, characterized in that: The positioning element (6) includes a top block (61) and an elastic element (62). The fixed cylinder (21) has an installation groove (212). The top block (61) is installed in the installation groove (212). The elastic element (62) is installed between the installation groove (212) and the top block (61) to drive the top block (61) to pass through the installation groove (212). The spiral sleeve (24) has a plurality of positioning grooves (242) around its own axis at one end near the top block (61). The elastic element (62) drives the top block (61) to be inserted into the positioning groove (242).

9. A microlens zoom honeycomb dot matrix handle according to claim 8, characterized in that: An adjusting screw (7) is installed at the bottom of the mounting groove (212), and the elastic element (62) abuts against the adjusting screw (7).

10. A microlens zoom honeycomb dot matrix handle according to claim 1, characterized in that: A safety bracket (5) is fixedly connected to the side of the mounting end (2) away from the locking end (1).

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