Laser scanning assembly and laser scanning beauty instrument hand tool thereof

Abstract

The utility model relates to a laser scanning assembly and a laser scanning beauty instrument hand tool thereof, and the laser scanning assembly comprises an assembly installation support. The assembly mounting bracket is a shell with a plurality of mounting cavities and comprises a fast and slow axis lens cavity, an X-axis galvanometer cavity, a Y-axis galvanometer cavity and a focusing module cavity; a fast and slow axis lens module, an X-axis scanning galvanometer module, a Y-axis scanning galvanometer module and a focusing lens module are sequentially installed on the assembly installation support. The light scanning beauty instrument hand tool comprises a shell; the laser scanning assembly is arranged in the shell. The small-sized semiconductor laser scanning field lens focusing system is finally realized, the size is very small, the scanning size can be controlled to be 35mm * 35mm, the scanning focusing system is shorter and can be controlled to be within 80mm, the size of each focusing light spot is controlled to be within 500mu m, and the small-sized semiconductor laser scanning field lens focusing system is better applied to household and medical small-sized handheld products.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of laser scanning assembly, and laser scanning beauty instrument handpiece using the component, especially the laser scanning beauty instrument handpiece applied on desktop multifunctional laser beauty instrument, belong to laser medical cosmetology field. BACKGROUND

[0002] Laser beauty instrument is a kind of using the concentrated heating function of laser beam, to carry out cosmetology to skin.Laser beauty instrument, laser is generally set in handheld device, and through the contact of handheld device and skin, laser is directly acted on skin, and cosmetology, skin care is carried out.

[0003] Therefore, the laser in a handheld device is fixed, and the laser wavelength and other parameters that it can generate are also determined, so the effect that it can play is also determined;But when doing deep cosmetology, different wavelengths of laser are often needed according to different skin conditions;This requires laser console, according to the need, external replacement different wavelength laser handpiece is used;Such as Chinese patent publication No.

[0004] In view of the above situation, special laser beauty instrument handpiece, especially its internal laser scanning assembly, needs to be designed for replacement use. INVENTION CONTENTS

[0005] The utility model aims at providing laser scanning assembly and its laser scanning beauty instrument handpiece, through the structure design of laser scanning assembly, the laser system in it can emit the cosmetology laser beam that meets the requirement, and different wavelengths of laser can be used according to the need, and the light beam is shaped by the quick adjustment of fast and slow shaft lens, polarization scanning and focusing are realized by using standard galvanometer module and focusing lens module, meet the use demand of desktop multifunctional laser beauty instrument for a variety of laser scanning handpiece.

[0006] To achieve the above utility model purposes, the first aspect of the utility model provides a kind of laser scanning assembly, including component mounting support;Component mounting support is the shell with multiple installation cavities, including fast and slow shaft lens cavity, X-axis galvanometer cavity, Y-axis galvanometer cavity, focusing module cavity;

[0007] Fast and slow shaft lens module, X-axis scanning galvanometer module, Y-axis scanning galvanometer module and focusing lens module are sequentially installed on component mounting support.

[0008] As a further improvement of the utility model, the outside of component mounting support is equipped with a plurality of mounting columns.

[0009] As a further improvement of this utility model, the component mounting bracket is provided with a red light module cavity, in which a red light indicator module is installed.

[0010] A reflector module is installed on the light-emitting side of the fast and slow axis lens module;

[0011] The reflector module is equipped with a reflector that is angled at 45 degrees.

[0012] Behind the reflector module is the red light indicator module.

[0013] Furthermore, the fast and slow axis lens module is provided with a fast and slow axis lens bracket, and the end of the fast and slow axis lens bracket is provided with an opening to fix the reflector module;

[0014] The laser is connected to the heat sink, and the heat sink, together with the laser, is fixed at one end between the fast and slow axis lens brackets.

[0015] The fast-axis and slow-axis lens module contains one fast-axis lens and one slow-axis lens; the fast-axis lens and the slow-axis lens are installed together in the fast-axis and slow-axis lens bracket.

[0016] Furthermore, the laser transmission path of the fast and slow axis lens bracket is provided with a lens mounting groove; the fast axis lens and the slow axis lens are fixed in the lens mounting groove.

[0017] A positioning groove is provided in the lens mounting slot, which marks and positions the fast-axis lens and the slow-axis lens.

[0018] Furthermore, the reflector module includes a reflector and a reflector bracket;

[0019] The reflector bracket is mounted on the light-emitting end of the fast and slow axis lens bracket;

[0020] The reflector bracket has a mirror mounting slope, on which the reflector is attached;

[0021] The reflector is a reflective and transparent mirror, with the reflective surface facing the laser to reflect the laser beam, while a red light indicator module is provided on the lens surface.

[0022] The red light indicator module is equipped with a red light emitter; the red light emitter emits a red beam of light at a 45-degree angle to the reflector. The red beam of light passes through the reflector and mixes with the laser beam reflected by the reflector surface to form a laser beam with red indicator light.

[0023] As a further improvement of this utility model, the X-axis scanning motor of the X-axis scanning galvanometer module is fixedly installed in the X-axis galvanometer cavity by the X-axis bushing, so that the X-axis galvanometer extends into and is installed on the transmission path of the laser beam.

[0024] The Y-axis scanning motor of the Y-axis scanning galvanometer module is fixedly installed in the Y-axis galvanometer cavity through a Y-axis bushing, so that the Y-axis galvanometer extends into and is installed on the transmission path of the laser beam;

[0025] The X-axis scanning galvanometer module and the Y-axis scanning galvanometer module are installed perpendicularly to each other;

[0026] The X-axis galvanometer of the X-axis scanning galvanometer module can swing around the X-axis;

[0027] The Y-axis galvanometer of the Y-axis scanning galvanometer module can swing around the Y-axis.

[0028] As a further improvement of the utility model, the opening part of the focusing module cavity of the component mounting support is internally threaded;

[0029] The focusing lens module is provided with a mounting sleeve, which comprises a sleeve body, and a cylindrical cavity is formed in the sleeve body;

[0030] An external mounting thread is arranged on the upper outer side of the sleeve body, and the external mounting thread is matched with the internal thread of the focusing module cavity;

[0031] An internal mounting thread is arranged on the upper inner side of the sleeve body, and a positioning ring is screwed in the internal mounting thread;

[0032] The first arc-shaped lens, the second arc-shaped lens and the third arc-shaped lens are sequentially arranged in the cavity of the sleeve body and are fixed by the positioning ring.

[0033] Further, a spacing ring is arranged between the arc-shaped lenses;

[0034] A first spacing ring is arranged between the first arc-shaped lens and the second arc-shaped lens;

[0035] A second spacing ring is arranged between the second arc-shaped lens and the third arc-shaped lens;

[0036] A flat lens is arranged outside the third arc-shaped lens;

[0037] The positioning ring is a ring nut, which is provided with a light-transmitting inner hole and is externally provided with a locking external thread matched with the internal mounting thread.

[0038] Further, the cavity is a plurality of chambers with reduced diameters, and the flat lens, the third arc-shaped lens, the second spacing ring, the second arc-shaped lens, the first spacing ring and the first arc-shaped lens are sequentially arranged in and clamped to the cavity from bottom to top.

[0039] In the second aspect, the utility model provides a kind of laser scanning beauty instrument hand tool, including shell;

[0040] The inside of the shell is provided with the laser scanning assembly as described above;

[0041] The shell is provided with air inlet and air outlet;

[0042] The heat sink is provided with a heat dissipation fan between the air inlet and the air outlet.

[0043] The laser beam emitted by the laser is divergent, needs to be compressed by a fast-axis lens first, and then compressed by a slow-axis lens, to obtain a very small square light spot, at which time the light beam is close to parallel propagation, is reflected by a 45°-angle installed mirror, is reflected at a right angle to the 45° X-axis galvanometer, is polarized in the X-axis direction, is reflected to the 45° Y-axis galvanometer, is deflected in the Y-axis direction, and forms a parallel laser beam which can be scanned in the X-axis and Y-axis directions.

[0044] The laser used in the laser scanning assembly and the laser scanning cosmetic instrument handpiece is a semiconductor laser, which is small in size, high in light emission efficiency, and low in manufacturing and maintenance cost.

[0045] The laser scanning assembly and the laser scanning cosmetic instrument handpiece finally realize a miniaturized semiconductor laser scanning field mirror focusing system, which is very small in size, and the scanning size can be controlled to 35mm*35mm, the scanning focusing system can be controlled within 80mm, and the size of each focusing light spot can be controlled within 500um, so that the laser scanning assembly and the laser scanning cosmetic instrument handpiece are better applied to household and medical miniaturized handheld products. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a whole structure schematic view of the desktop multifunctional laser cosmetic instrument;

[0047] Figure 2 It is a whole structure appearance view of the laser scanning cosmetic instrument handpiece of the utility model;

[0048] Figure 3 It is an internal structure schematic view of the laser scanning cosmetic instrument handpiece of the utility model Figure 1 ;

[0049] Figure 4 It is an internal structure schematic view of the laser scanning cosmetic instrument handpiece of the utility model Figure 2 ;

[0050] Figure 5 It is a whole structure schematic view of the laser scanning assembly of the utility model Figure 1 ;

[0051] Figure 6 The whole structure schematic diagram of the laser scanning assembly of the utility model Figure 2 ;

[0052] Figure 7 The whole structure schematic diagram of the laser scanning assembly of the utility model Figure 3 ;

[0053] Figure 8 The whole structure schematic diagram of the laser scanning assembly of the utility model Figure 4 ;

[0054] Figure 9 The core component structure schematic diagram of the laser scanning assembly, the dotted line in the figure is the laser transmission path

[0055] Figure 10 The whole structure schematic diagram of the mounting bracket of the laser scanning assembly of the utility model Figure 1 ;

[0056] Figure 11 The whole structure schematic diagram of the mounting bracket of the laser scanning assembly of the utility model Figure 2 ;

[0057] Figure 12 The whole structure appearance diagram of the assembling part of the laser, the fast and slow shaft lens and the reflecting mirror of the utility model

[0058] Figure 13 The internal section view of Figure 12 ;

[0059] Figure 14 The whole structure schematic diagram of the assembling bracket of the laser and the fast and slow shaft lens of the utility model

[0060] Figure 15 The internal structure schematic diagram of Figure 14 ;

[0061] Figure 16 The combined state schematic diagram of the reflecting mirror assembly and the red light indicator of the utility model

[0062] Figure 17 The combined state schematic diagram of the X axis and Y axis scanning galvanometer of the utility model

[0063] Figure 18 The whole structure schematic diagram of the focusing lens module of the utility model

[0064] Figure 19 The whole structure schematic diagram of the mounting bracket of the focusing lens module of the utility model

[0065] Figure 20This is a schematic diagram of the combined state of the focusing lens of this utility model;

[0066] Figure 21 for Figure 18 A schematic diagram of the internal structure. Detailed Implementation

[0067] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0068] like Figure 1 As shown, this is a desktop multi-functional laser beauty device, which has a multi-functional control console 1 with a built-in control system that can control the laser beauty process. The multi-functional control console 1 is connected to at least one laser scanning beauty device handpiece 2 via a cable. The laser scanning beauty device handpiece 2 generates a controllable laser to perform beauty treatment on the skin.

[0069] The shape of the laser scanning beauty device handpiece 2 is as follows Figure 2 As shown, the device includes a housing 21; the laser scanning assembly and control circuitry of this invention are installed inside the housing 21. The front end of the housing 21 is open or fitted with transparent glass, allowing the laser beam to be emitted. A head cover 22 is provided at the laser beam emission end, and a laser port 23 is provided at the end of the head cover 22. When the laser port 23 is pressed onto the skin, the laser scanning assembly operates, applying a scanning laser beam to the area pressed by the laser port 23 for cosmetic purposes.

[0070] The interior of the housing 21 of the laser scanning beauty device handpiece 2 is as follows Figure 3 , Figure 4 As shown, the main component is a laser scanning assembly 3. The laser of the laser scanning assembly 3 is the main heat-generating component, and a cooling fan 4 is provided nearby for heat dissipation.

[0071] The cooling fan 4 is installed between the air inlet 24 and the air outlet 25. When the cooling fan 4 is working, it draws in external air through the air inlet 24. The air flows through the control circuit board 5 and the heat sink 41 of the laser scanning component 3, carrying away the heat, and is then blown out through the air outlet 25. Preferably, the cooling fan 4 has cushioning foam attached to its outer ring to reduce mechanical vibration during operation.

[0072] The core component inside the laser scanning beauty device handpiece 2 is the laser scanning assembly 3, such as... Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, including the assembly mounting bracket 31, on which the fast and slow axis lens module 32, mirror module 33, red light indicator module 34, X-axis scanning galvanometer module 35, Y-axis scanning galvanometer module 36, and focusing lens module 37 are installed; heat sink 41 is also assembled and fixed on the fast and slow axis lens module 32, and the control circuit board 5 is also fixed on the assembly mounting bracket 31, forming a separate component module, which is installed into the shell 21 after debugging.

[0073] The inside of the laser scanning assembly 3 is as shown in Figure 9 The laser beam is emitted by the laser 321, passes through the fast axis lens 322 and the slow axis lens 323 to form a parallel beam, and then is turned by the mirror module 33; the mirror module 33 is further provided with a red light indicator module 34, and the red light emitter 341 generates an indicative red light beam, which passes through the mirror and is interwoven with the laser beam to indicate the transmission of the laser beam; the mixed light beam is incident on the X-axis galvanometer 351 of the X-axis scanning galvanometer module 35 and the Y-axis galvanometer 361 of the Y-axis scanning galvanometer module 36, so that the light beam can vibrate along the X-axis and the Y-axis to generate a two-dimensional scanning spot, and finally passes through the focusing lens module 37 to focus the light beam, realize ultra-short distance focusing, and finally be emitted and pass through the head cover 22 (which fixes the distance of focusing on the skin) to act on the skin, wherein the laser beam serves as energy and is accurately focused at 300-1000 um under the skin for beauty; and the red light remains on the skin surface to indicate the beauty part.

[0074] The assembly mounting bracket 31 is as shown in Figure 10 , Figure 11 It is a shell with multiple mounting cavities, including a fast and slow axis lens cavity 312, a red light module cavity 314, an X-axis galvanometer cavity 315, a Y-axis galvanometer cavity 316, and a focusing module cavity 317; the assembly mounting bracket 31 is further provided with a plurality of mounting columns 318 on the outside for mounting the control circuit board 5 and fixing itself in the shell 21.

[0075] Preferably, the opening part of the fast and slow axis lens cavity 312 and the focusing module cavity 317 is internally threaded.

[0076] The combined state of the fast and slow axis lens module 32 and the mirror module 33 is as shown in Figure 12 , Figure 13 They are installed together in the fast and slow axis lens cavity 312.

[0077] The fast-slow axis lens module 32 is provided with a fast-slow axis lens support 324, the end of which is provided with a fixing thread 325 matched with the internal thread of the opening part of the fast-slow axis lens cavity 312; and the end of the fast-slow axis lens support 324 is provided with an opening, which can fix the mirror module 33; the open support of the fast-slow axis lens support 324 can adjust and install the fast axis lens 322 and the slow axis lens 323, and finally the fast-slow axis lens support 324 is closed and fixed by the support cover 326, forming a closed laser transmission channel, which plays a sealing and dustproof role; the support cover 326 is screwed on the opening of the fast-slow axis lens support 324; the laser 321 is glued and fixed on the heat sink 41 by AB heat-conducting silver glue, and then the heat sink 41 is fixed on the fast-slow axis lens support 324 by a screw, so that the laser 321 extends into the fast-slow axis lens support 324, and the laser beam generated by the laser 321 also propagates in the fast-slow axis lens support 324; the position of the laser 321 in the fast-slow axis lens support 324 is relatively fixed.

[0078] In order to cooperate with the multifunctional console host 1, the same or similar shaped laser scanning beauty instrument hand tool 2 can generate laser beams of different wavelengths and energies to meet different needs of the beauty process; in order to adjust the wavelength of the laser, different lasers 321 need to be selected, and thus the distance between the fast axis lens 322, the slow axis lens 323 and the laser 321 needs to be adjusted, and then a positioning groove 327 is arranged in the lens installation groove of the fast-slow axis lens support 324, and the corresponding positioning groove 327 can be set according to the installation distance design requirements between different types of lasers and the fast axis lens 322 and the slow axis lens 323, such as shown in Figure 14 , Figure 15 , so as to facilitate the adjustment, installation and fixation of the fast axis lens 322 and the slow axis lens 323. The fast axis lens 322 and the slow axis lens 323 are pasted at the corresponding positioning groove 327 by glue.

[0079] The fast axis lens 322 and the slow axis lens 323 in the fast-slow axis lens module 32 shape the scattered laser beam emitted by the laser 321 to form a parallel propagating laser beam.

[0080] The mirror module 33 includes a mirror 331 and a mirror support 332; the mirror support 332 is installed at the light emitting end of the fast-slow axis lens support 324, and the mirror support 332 is provided with a lens installation inclined surface for pasting the mirror 331, so that the mirror 331 and the laser beam in the fast-slow axis lens module 32 form a 45-degree included angle, so that the laser beam can be turned by 90 degrees for continuous propagation. The mirror 331 is a reflective light-transmitting mirror, and the reflective surface is directed to the fast-slow axis lens module 32, so that the laser beam can be reflected, and the lens surface is provided with a red light indicator module 34, such as Figure 16As shown, the red light indicator module 34 is provided with a red light emitter 341 and a red light circuit board 342, the red light emitter 341 is welded on the red light circuit board 342, and the red light circuit board 342 is fixed on the red light support 344 together with the red light emitter 341; the light emitting side of the red light support 344 is further provided with a red light collimating lens 343 for shaping the scattered red light beam emitted by the red light emitter 341 to form a parallel red light beam; the red light indicator module 34 is integrally installed into the red light module cavity 314 by using the red light support 344, and is installed close to the reflector 331; the red light beam emitted by the red light emitter 341 also forms a 45-degree angle with the reflector 331, and after being shaped by the red light collimating lens 343, the red light beam passes through the lens and mixes with the laser beam reflected by the reflecting surface to form a laser beam with red indicating light.

[0081] When the reflector support 332 is installed into the fast-slow axis lens support 324, it is padded with an adjusting elastic pad 334, which is a plastic washer, so that when the fast-slow axis lens module 32 is rotated into the fast-slow axis lens cavity 312, the reflector support 332 can be pressed tightly to prevent it from moving and to ensure the distance of the laser collimating light path.

[0082] The X-axis scanning galvanometer module 35 and the Y-axis scanning galvanometer module 36 are installed vertically, as shown. Figure 17 The X-axis galvanometer 351 of the X-axis scanning galvanometer module 35 can swing around the X-axis, so that the red laser mixed beam is reflected by the reflector 331 to the X-axis galvanometer 351, is reflected by the X-axis galvanometer 351 to form a scanning line beam in the Y-axis direction, and then is reflected by the Y-axis galvanometer 361 to the Y-axis scanning galvanometer module 36; the Y-axis galvanometer 361 of the Y-axis scanning galvanometer module 36 can swing around the Y-axis, so that the red laser mixed beam is further reflected to form a scan in the X-axis direction, and the scan in the Y-axis direction is superimposed to form a two-dimensional scanning beam in the X-axis Y-axis range; after the red laser mixed beam passes through the X-axis scanning galvanometer module 35 and the Y-axis scanning galvanometer module 36 twice, a two-dimensional scanning beam in the X-axis Y-axis range is formed, so that the red laser mixed beam can perform scanning movement in a region after being emitted, and in particular, the red laser mixed beam performs uniform Z-shaped scanning on the skin, preferably forms rectangular scanning, and quickly scans a row of laser array points to achieve wide coverage; of course, after control and adjustment, a circular region, a triangular region, or a hexagonal region, etc. can also be scanned; after scanning and covering a region, the laser scanning beauty instrument hand tool 2 is moved to another region that has not been beautified, and the matrix is shot again, so that the skin can be completely covered.

[0083] The X-axis scanning motor 352 of the X-axis scanning galvanometer module 35 is fixedly installed in the X-axis galvanometer cavity 315 through the X-axis bushing 353, so that the X-axis galvanometer 351 extends into and is installed on the transmission path of the laser beam.

[0084] The Y-axis scanning motor 362 of the Y-axis scanning galvanometer module 36 is fixedly installed in the Y-axis galvanometer cavity 316 through the Y-axis bushing 363, so that the Y-axis galvanometer 361 extends into and is installed on the transmission path of the laser beam.

[0085] Focusing lens module 37, such as Figure 18 , Figure 21 As shown, a mounting sleeve 371 is provided, in which several sets of lenses are installed, and finally locked and fixed by a positioning ring 372; the mounting sleeve 371, as Figure 19 As shown, it includes a sleeve body 3711, which contains a cylindrical cavity 3714; the upper outer side of the sleeve body 3711 is provided with an external mounting thread 3712, and the inner side is provided with an internal mounting thread 3713; a positioning ring 372 is screwed into the internal mounting thread 3713; the core lens assembly is as follows Figure 20 As shown, it includes three curved lenses: a first curved lens 373, a second curved lens 375, and a third curved lens 377. Spacer rings are provided between the three curved lenses to ensure the relative working distance and accuracy between them. Specifically, a first spacer ring 374 is provided between the first curved lens 373 and the second curved lens 375, and a second spacer ring 376 is provided between the second curved lens 375 and the third curved lens 377. A flat lens 378 is provided outside the last curved lens, namely the third curved lens 377, to protect and shield the curved lens.

[0086] Among them, the first arc lens 373 and the second arc lens 375 are convex lenses, and the distance between them is relatively small. Therefore, the first spacer ring 374 between them is relatively thin, which initially focuses the parallel laser beam inward.

[0087] The third arc lens 377 is a concave lens; the distance between the second arc lens 375 and the third arc lens 377 is relatively large, which allows the laser beam to be focused inward into the mirror surface of the concave lens, and then further focused into the final light spot; therefore, the second spacer ring 376 between the two is relatively thick.

[0088] Due to installation limitation, the diameters of the first arc-shaped lens 373, the second arc-shaped lens 375 and the third arc-shaped lens 377 are gradually reduced, and the corresponding barrel cavity 3714 is a plurality of chambers with reduced diameters for sequentially placing and clamping and installing the flat lens 378, the third arc-shaped lens 377, the second spacing ring 376, the second arc-shaped lens 375, the first spacing ring 374, the first arc-shaped lens 373 from bottom to top, and finally screwing in the positioning ring 372; the positioning ring 372 is a ring-shaped nut provided with a light-transmitting inner hole 3721, and an outer locking external thread 3723 is arranged outside the positioning ring 372 and matched with the installation internal thread 3713; a locking groove 3724 is arranged outside the positioning ring 372, used for clamping a tool to lock the positioning ring 372, and the positioning ring 372 extrudes the first arc-shaped lens 373, so that all the lenses are fixed and locked to form an independent focusing lens module 37.

[0089] In use, the focusing lens module 37 can be rotated to adjust the installation position of the focusing lens module 37, so as to adjust the size and focusing position of the final laser spot.

[0090] The laser beam emitted by the laser 321 is divergent, needs to be compressed by the fast-axis lens 322 first and then compressed by the slow-axis lens 323, and a very small square spot is obtained, at this time, the beam is close to parallel propagation, is reflected by the 45°-angle-arranged mirror 331, is reflected at right angles to the 45°-angle-arranged X-axis galvanometer 351, is polarized in the X-axis direction, is reflected to the 45°-angle-arranged Y-axis galvanometer 361, is deflected in the Y-axis direction, and a parallel laser beam capable of being scanned in the X-axis and Y-axis directions is formed; the laser beam is emitted into the focusing lens module 37, is refracted and focused by the first arc-shaped lens 373, the second arc-shaped lens 375 and the third arc-shaped lens 377 to the surface of the head cover 22, that is, the skin surface.

[0091] The X-axis galvanometer 351 and the Y-axis galvanometer 361 can quickly swing and scan, can punch out regular matrix points on the skin surface, realize ultra-short distance focusing, and enable each deflected laser beam to be accurately focused under the skin at 300-1000 um.

[0092] Meanwhile, the red light indicator module 34 is arranged behind the mirror 331, the red light is mixed into the middle of the laser beam, and the position of the laser beam is indicated by the red light point. The mirror 331 is subjected to special coating treatment, so that one side is a mirror and can reflect the laser beam emitted by the laser 321, but the red light emitted by the red light indicator module 34 can penetrate the mirror surface.

[0093] The X-axis vibration mirror 351 and the Y-axis vibration mirror 361 are also subjected to coating treatment, and can reflect the 1400-2000nm wavelength laser emitted by the laser 321 and the 650nm wavelength red light emitted by the red light indicator module 34.

[0094] The flat lens 378 and the transparent glass arranged between the shell 21 and the head cover 22 are high-transmittance glass mirrors, and can ensure that the light beams pass through without loss, especially without refraction.

[0095] In the focusing lens module 37, two interval rings are arranged, so that the relative working distances of the three arc-shaped lenses can be effectively ensured; and in view of the long feature of the second interval ring 376, a stepped light elimination structure is arranged in the second interval ring 376, so that stray light can be effectively eliminated, and the accuracy of the final output is ensured.

[0096] The laser 321 of the laser scanning beauty instrument hand tool 2 is a semiconductor laser, which is small in size, high in light emission efficiency, and low in manufacturing and maintenance cost.

[0097] The laser scanning beauty instrument hand tool 2 realizes a miniaturized semiconductor laser scanning field mirror focusing system, which is very small in size, and the scanning size can be controlled to 35mm*35mm, and the scanning focusing system can be controlled to be within 80mm, and the size of each focusing light spot is controlled to be within 500um, so that the laser scanning beauty instrument hand tool 2 is better applied to household and medical miniaturized handheld products.

[0098] The preferred embodiments of the utility model have been specifically described above, but the utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A laser scanning assembly, characterized by The component mounting bracket is a shell with a plurality of mounting cavities, including a fast-slow axis lens cavity, an X-axis galvanometer cavity, a Y-axis galvanometer cavity, and a focusing module cavity. The component mounting bracket is sequentially mounted with a fast-slow axis lens module, an X-axis scanning galvanometer module, a Y-axis scanning galvanometer module, and a focusing lens module. The component mounting bracket is provided with a red light module cavity, in which a red light indicator module is mounted. The fast-slow axis lens module is provided with a mirror module on the light-emitting side. The mirror module is provided with a 45-degree inclined mirror. The mirror module is followed by the red light indicator module.

2. The laser scanning assembly of claim 1, wherein, The component mounting bracket is provided with a plurality of mounting columns on the outer side.

3. The laser scanning assembly of claim 1, wherein, The fast-slow axis lens module is provided with a fast-slow axis lens bracket, and the end of the fast-slow axis lens bracket is provided with an opening for fixing the mirror module. The laser is connected with a heat sink, and the heat sink is fixed with the laser at one end between the fast-slow axis lens brackets. The fast-slow axis lens module is provided with a fast-axis lens and a slow-axis lens.

4. The laser scanning assembly of claim 3, wherein, The fast-slow axis lens bracket is provided with a lens mounting groove on the laser transmission path. The fast-slow axis lens and the slow-axis lens are fixed in the lens mounting groove.

5. The laser scanning assembly of claim 3, wherein The lens mounting groove is provided with a positioning groove for identifying and positioning the fixed positions of the fast-axis lens and the slow-axis lens. The mirror module includes a mirror and a mirror bracket. The mirror bracket is mounted on the light-emitting end of the fast-slow axis lens bracket. The mirror bracket is provided with a lens mounting inclined surface and is pasted with a mirror. The mirror is a reflective light mirror, and the reflection surface faces the laser, which can reflect the laser beam.

6. The laser scanning assembly of claim 1, wherein, The red light indicator module is provided with a red light emitter. The red light emitter emits a red light beam at a 45-degree angle with the mirror, and the red light beam passes through the mirror and mixes with the laser beam reflected by the reflection surface to form a laser beam with a red indicator light. The X-axis scanning motor of the X-axis scanning galvanometer module is fixedly installed in the X-axis galvanometer cavity through an X-axis bushing, so that the X-axis galvanometer extends into and is installed on the transmission path of the laser beam. The Y-axis scanning motor of the Y-axis scanning galvanometer module is fixedly installed in the Y-axis galvanometer cavity through a Y-axis bushing, so that the Y-axis galvanometer extends into and is installed on the transmission path of the laser beam. The X-axis scanning galvanometer module and the Y-axis scanning galvanometer module are installed perpendicular to each other.

7. The laser scanning assembly of claim 1, wherein, The X-axis galvanometer of the X-axis scanning galvanometer module can swing around the X-axis. The Y-axis galvanometer of the Y-axis scanning galvanometer module can swing around the Y-axis. The opening part of the focusing module cavity of the component mounting bracket is internally threaded. The focusing lens module is provided with a mounting sleeve, including a sleeve body with a cylindrical sleeve cavity. The upper outer side of the sleeve body is provided with a mounting external thread, which matches the internal thread of the focusing module cavity.

8. The laser scanning assembly of claim 7, wherein the laser scanning assembly is configured to scan the laser beam in a first direction and a second direction that is perpendicular to the first direction. The upper inner side of the sleeve body is provided with a mounting internal thread, and a positioning ring is screwed in the internal thread. The first arc-shaped lens, the second arc-shaped lens, and the third arc-shaped lens are sequentially placed in the sleeve cavity of the sleeve body and are fixed by the positioning ring. The arc-shaped lenses are provided with spacing rings. The first arc-shaped lens and the second arc-shaped lens are provided with a first spacing ring. The second arc-shaped lens and the third arc-shaped lens are provided with a second spacing ring. The third arc-shaped lens is externally provided with a flat lens. The positioning ring is a ring nut, which is provided with a light-transmitting inner hole, and is provided with a locking outer thread outside, which is matched with the mounting inner thread.

9. A laser scanning cosmetic instrument handpiece characterized by, The laser scanning assembly comprises a shell; The inside of the shell is provided with the laser scanning assembly as claimed in any one of claims 1-8; The shell is provided with an air inlet and an air outlet; The laser of the laser scanning assembly is connected with a heat sink, and the heat sink is provided with a cooling fan, which is located between the air inlet and the air outlet.

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