Dual-wavelength laser assembly and laser beauty instrument

Abstract

The utility model discloses a dual-wavelength laser assembly and a laser beauty instrument, and the dual-wavelength laser assembly comprises a laser which is used for emitting a laser beam; the optical assembly is arranged on one side of the laser and used for reflecting the laser beams to a working plane; the laser comprises a heat dissipation piece, a first laser chip, a second laser chip, a first collimating lens and a second collimating lens, and the first laser chip and the second laser chip are symmetrically arranged on the heat dissipation piece; the first laser chip emits a first laser beam, and the first collimating lens is arranged on one side of the first laser chip and used for collimating the first laser beam into parallel light in the fast axis direction; the second laser chip emits a second laser beam, and the second collimating lens is arranged on one side of the second laser chip and used for collimating the second laser beam into parallel light in the fast axis direction. Through the mode, the cost is reduced, the dual-wavelength beautifying function is realized, and the diversity and effectiveness of treatment are enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser beauty, in particular to a dual-wavelength laser assembly and a laser beauty instrument. BACKGROUND

[0002] As a new beauty technology, laser beauty has been widely used in recent years. It can effectively eliminate facial wrinkles and make the skin tender and smooth by using specific wavelength laser beams on the skin. Laser beauty can not only be used to treat skin problems such as acne, black spots and age spots, but also is widely welcomed due to its painless and safe and reliable characteristics.

[0003] Different wavelengths of laser have different penetration power and can selectively act on cells with different pigmentation, thereby achieving targeted treatment and beauty effects. However, existing handheld beauty laser medical devices can usually only use single-wavelength laser, which makes the treatment target and effect single. Although large multi-wavelength laser medical systems can provide multiple wavelengths of laser, they usually use optical filters to combine laser wavelengths, which has a complex structure and high cost. CONTENT OF THE INVENTION

[0004] The present application mainly provides a dual-wavelength laser assembly and a laser beauty instrument to solve the problem that existing handheld beauty laser medical devices can usually only use single-wavelength laser.

[0005] The present application provides a dual-wavelength laser assembly, comprising:

[0006] a laser for emitting a laser beam;

[0007] an optical assembly arranged on one side of the laser for reflecting the laser beam to a working plane;

[0008] The laser comprises a heat dissipation member, a first laser chip, a second laser chip, a first collimating lens and a second collimating lens, and the first laser chip and the second laser chip are symmetrically arranged on the heat dissipation member; the first laser chip emits a first laser beam, and the first collimating lens is arranged on one side of the first laser chip for collimating the first laser beam into parallel light in the fast-axis direction; the second laser chip emits a second laser beam, and the second collimating lens is arranged on one side of the second laser chip for collimating the second laser beam into parallel light in the fast-axis direction.

[0009] The heat dissipation member comprises a first surface and a second surface, the first surface and the second surface are oppositely arranged, the first laser chip is arranged on the first surface, and the second laser chip is arranged on the second surface.

[0010] The positive electrode of the first laser chip is connected with the positive electrode area of the first surface, and the negative electrode of the first laser chip is connected with the negative electrode area of the first surface; the positive electrode of the second laser chip is connected with the positive electrode area of the second surface, and the negative electrode of the second laser chip is connected with the negative electrode area of the second surface.

[0011] The first surface comprises a first positive electrode and a first negative electrode, the first positive electrode is arranged at the positive electrode area of the first surface, and the first negative electrode is arranged at the negative electrode area of the first surface; the second surface comprises a second positive electrode and a second negative electrode, the second positive electrode is arranged at the positive electrode area of the second surface, and the second negative electrode is arranged at the negative electrode area of the second surface.

[0012] The laser assembly further comprises an electric control assembly, the electric control assembly is connected with the first positive electrode, the first negative electrode, the second positive electrode and the second negative electrode respectively, and is used for controlling the first laser chip to emit the first laser beam and the second laser chip to emit the second laser beam.

[0013] The optical assembly comprises a slow-axis converging lens, a scanning assembly and a fast-axis converging lens, the slow-axis converging lens is arranged at the side of the first collimating lens away from the first laser chip and the side of the second collimating lens away from the second laser chip; the scanning assembly is arranged at the side of the slow-axis converging lens away from the laser; and the fast-axis converging lens is arranged at the side of the scanning assembly close to the working plane, and is used for converging the first laser beam and the second laser beam onto the working plane.

[0014] The scanning assembly comprises a driving member and a reflecting member, the reflecting member is arranged at the side of the slow-axis converging lens away from the laser, and the driving member is connected with the reflecting member, and is used for controlling the reflection direction of the reflecting member, so that the reflecting member reflects the first laser beam and the second laser beam to the working plane.

[0015] The laser assembly further comprises a control assembly, the control assembly is connected with the reflecting member and the laser respectively, and is used for controlling the laser to emit a laser beam when the reflection direction of the reflecting member is fixed.

[0016] The laser assembly further comprises a heat dissipation assembly, the heat dissipation assembly is connected with the heat dissipation member, and is used for actively dissipating heat for the laser.

[0017] The application further provides a laser beauty instrument comprising the laser assembly as described above.

[0018] The beneficial effects of the present application are: the dual-wavelength laser assembly provided by the present application comprises a laser and an optical assembly, and the optical assembly is arranged on one side of the laser; wherein the laser comprises a heat dissipation piece, a first laser chip, a second laser chip, a first collimating lens and a second collimating lens, and the first laser chip and the second laser chip are symmetrically arranged on the heat dissipation piece; the first laser chip emits a first laser beam, and the first collimating lens is arranged on one side of the first laser chip and is used for collimating the first laser beam into parallel light in the fast-axis direction; the second laser chip emits a second laser beam, and the second collimating lens is arranged on one side of the second laser chip and is used for collimating the second laser beam into parallel light in the fast-axis direction. By symmetrically arranging the first laser chip and the second laser chip on the heat dissipation piece, the light-emitting areas of the two laser chips are kept at a small distance, so that the two laser beams can be effectively integrated without using a filter, the structure is simple and the cost is reduced; and by arranging the first collimating lens and the second collimating lens respectively, the first laser beam and the second laser beam can be collimated into parallel light in the fast-axis direction, thereby realizing the output of dual-wavelength laser, achieving the dual-wavelength beauty function, and enhancing the diversity and effectiveness of treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor. Among them:

[0020] Figure 1 is a structural schematic diagram of an embodiment of the dual-wavelength laser assembly provided by the present application;

[0021] Figure 2 is a front view of an embodiment of the dual-wavelength laser assembly provided by the present application;

[0022] Figure 3 is a structural schematic diagram of an embodiment of the laser in Figure 1

[0023] Figure 4 is a side view of an embodiment of the laser of Figure 3

[0024] Figure 5 is a structural schematic diagram of another embodiment of the laser provided by the present application;

[0025] Figure 6 is a side view of another embodiment of the laser provided by the present application;

[0026] Figure 7 ​​FIG. 1 is a schematic diagram of an embodiment of a fast-axis converging lens according to the present application converging a first laser beam and a second laser beam to a work plane;

[0027] Figure 8 FIG. 2 is a schematic diagram of another embodiment of a fast-axis converging lens according to the present application converging a first laser beam and a second laser beam to a work plane. DETAILED DESCRIPTION

[0028] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0030] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0031] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0033] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0034] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0035] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected between them, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0036] Different wavelengths of laser have different penetrating power, and can selectively act on cells with different pigmentation, thereby achieving targeted treatment and cosmetic effects. However, the existing handheld cosmetic laser medical device can usually only use laser with a single wavelength, which makes its treatment target and effect relatively single. Although the large multi-wavelength laser medical system can provide laser with multiple wavelengths, it usually uses a filter to combine laser beams with different wavelengths, which has a complex structure and high cost.

[0037] The present application provides a dual-wavelength laser assembly, please see Figures 1-4 , Figure 1 is a structural schematic diagram of an embodiment of the dual-wavelength laser assembly provided by the present application; Figure 2 is a front view of an embodiment of the dual-wavelength laser assembly provided by the present application; Figure 3 is Figure 1 a structural schematic diagram of an embodiment of the laser in Figure 4 is Figure 3 a side view of an embodiment of the laser in The laser assembly 1 of the embodiment includes a laser 10 and an optical assembly 20.

[0038] The laser 10 is used to emit a laser beam.

[0039] The optical assembly 20 is arranged on one side of the laser 10 for reflecting the laser beam to the working plane 30. In some embodiments, the optical assembly 20 is arranged on the outgoing path of the laser beam emitted by the laser 10, and the laser beam is reflected to the working plane 30 by the optical assembly 20 to achieve laser beauty.

[0040] The laser 10 includes a heat sink 11, a first laser chip 12, a second laser chip 13, a first collimating lens 14, and a second collimating lens 15. The first laser chip 12 and the second laser chip 13 refer to a single semiconductor laser chip or a laser unit semi-finished product made of a single semiconductor laser chip and a substrate, which is used to emit a laser beam. The heat sink 11 includes, but is not limited to, a heat sink block, which is made of copper, aluminum, copper tungsten, copper diamond, and other high-thermal-conductivity metals or composite metal materials, and has a preset shape for support, such as a cuboid. The first collimating lens 14 and the second collimating lens 15 are both fast-axis collimating lenses.

[0041] The first laser chip 12 and the second laser chip 13 are symmetrically arranged on the heat sink 11. In some embodiments, the first laser chip 12 and the second laser chip 13 are welded on the heat sink 11 by solder sheets or solder paste, and the first laser chip 12 and the second laser chip 13 are symmetrical; for example Figure 3 and Figure 4 As shown in the figures, when the heat sink 11 is a cuboid heat sink block, the first laser chip 12 and the second laser chip 13 are arranged on opposite two faces of the heat sink 11, respectively, so that the first laser chip 12 and the second laser chip 13 are symmetrically arranged.

[0042] The first laser chip 12 emits a first laser beam, and the first collimating lens 14 is arranged on one side of the first laser chip 12 for collimating the first laser beam into parallel light in the fast-axis direction. The second laser chip 13 emits a second laser beam, and the second collimating lens 15 is arranged on one side of the second laser chip 13 for collimating the second laser beam into parallel light in the fast-axis direction.

[0043] In this design, a first laser chip 12 emits a first laser beam from one side, which is also called the light-emitting window or light-emitting surface of the first laser chip 12; a second laser chip 13 emits a second laser beam from one side, which is also called the light-emitting window or light-emitting surface of the second laser chip 13. In some embodiments, a first collimating lens 14 is provided on one side of the first laser chip 12. When the first laser chip 12 emits the first laser beam, the first collimating lens 14 compresses the divergence angle of the first laser beam in the fast axis direction, making the first laser beam parallel in the fast axis direction, that is, collimating the first laser beam into parallel light in the fast axis direction; a second collimating lens 15 is provided on one side of the second laser chip 13. When the second laser chip 13 emits the second laser beam, the second collimating lens 15 compresses the divergence angle of the second laser beam in the fast axis direction, making the second laser beam parallel in the fast axis direction, that is, collimating the second laser beam into parallel light in the fast axis direction; at this time, the first laser beam and the second laser beam are emitted horizontally and parallel to each other in the fast axis direction.

[0044] Optionally, the first laser beam and the second laser beam are laser beams of different wavelengths. The first collimating lens 14 and the second collimating lens 15 include, but are not limited to, aspherical D lenses, fiber optic rods, or glass rods.

[0045] In this embodiment, by symmetrically arranging the first laser chip 12 and the second laser chip 13 on the heat sink 11, the light-emitting areas of the two laser chips are kept at a small distance, thereby effectively integrating the two laser beams without the need for filters, simplifying the structure and reducing costs. Furthermore, by respectively setting the first collimating lens 14 and the second collimating lens 15, the first laser beam and the second laser beam can be collimated into parallel light in the fast axis direction, thereby realizing the output of dual-wavelength lasers and achieving dual-wavelength cosmetic functions, enhancing the diversity and effectiveness of treatment.

[0046] According to some embodiments of this application, please refer to Figure 3 and Figure 4 As shown, the heat sink 11 in this embodiment includes a first surface 111 and a second surface 112. The first surface 111 and the second surface 112 are arranged opposite to each other. The first laser chip 12 is disposed on the first surface 111 and the second laser chip 13 is disposed on the second surface 112.

[0047] In some embodiments, the first surface 111 and the second surface 112 of the heat sink 11 are disposed opposite to each other and the first surface 111 and the second surface 112 are symmetrical; at this time, the first laser chip 12 disposed on the first surface 111 is symmetrical to the second laser chip 13 disposed on the second surface 112.

[0048] According to some embodiments of the present application, the positive electrode of the first laser chip 12 is connected to the positive electrode area of the first surface 111, and the negative electrode of the first laser chip 12 is connected to the negative electrode area of the first surface 111; the positive electrode of the second laser chip 13 is connected to the positive electrode area of the second surface 112, and the negative electrode of the second laser chip 13 is connected to the negative electrode area of the second surface 112.

[0049] In some embodiments, the first surface 111 and the second surface 112 of the heat dissipation member 11 each include a positive electrode area and a negative electrode area, and the positive electrode area and the negative electrode area are insulated from each other; the positive electrode of the first laser chip 12 is welded to the positive electrode area of the first surface 111 by a solder sheet or solder paste, so that the positive electrode of the first laser chip 12 is connected to the positive electrode area of the first surface 111, and the negative electrode of the first laser chip 12 is connected to the negative electrode area of the first surface 111 by a connecting wire; the positive electrode of the second laser chip 13 is welded to the positive electrode area of the second surface 112 by a solder sheet or solder paste, so that the positive electrode of the second laser chip 13 is connected to the positive electrode area of the second surface 112, and the negative electrode of the second laser chip 13 is connected to the negative electrode area of the second surface 112 by a connecting wire, for example Figure 3 and Figure 4 as shown.

[0050] By connecting the positive electrode of the first laser chip 12 to the positive electrode area of the first surface 111, the negative electrode of the first laser chip 12 to the negative electrode area of the first surface 111, and the positive electrode of the second laser chip 13 to the positive electrode area of the second surface 112, and the negative electrode of the second laser chip 13 to the negative electrode area of the second surface 112, the electrode connection of each laser chip is more stable and reliable. This design not only ensures that the current can accurately flow into and out of each laser chip, improving the efficiency of electrical energy transmission, but also reduces the mutual interference between the electrodes through clear electrode partitioning, improving stability and safety.

[0051] According to some embodiments of the present application, the first surface 111 includes a first positive electrode 113 and a first negative electrode 114, the first positive electrode 113 is arranged in the positive electrode area of the first surface 111, and the first negative electrode 114 is arranged in the negative electrode area of the first surface 111; the second surface 112 includes a second positive electrode 115 and a second negative electrode 116, the second positive electrode 115 is arranged in the positive electrode area of the second surface 112, and the second negative electrode 116 is arranged in the negative electrode area of the second surface 112.

[0052] In some embodiments, the first surface 111 circumscribes the first positive electrode 113 and the first negative electrode 114, the first positive electrode 113 is arranged on the positive electrode region of the first surface 111 away from one end of the first laser chip 12, and the first negative electrode 114 is arranged on the negative electrode region of the first surface 111 corresponding to the first positive electrode 113; the second surface 112 circumscribes the second positive electrode 115 and the second negative electrode 116, the second positive electrode 115 is arranged on the positive electrode region of the second surface 112 away from one end of the second laser chip 13, and the second negative electrode 116 is arranged on the negative electrode region of the second surface 112 corresponding to the second positive electrode 115.

[0053] According to some embodiments of the present application, the laser assembly 1 further comprises an electric control assembly (not shown in the figure), which is connected with the first positive electrode 113, the first negative electrode 114, the second positive electrode 115 and the second negative electrode 116 respectively, for controlling the first laser chip 12 to emit the first laser beam and the second laser chip 13 to emit the second laser beam.

[0054] In some embodiments, the electric control assembly controls the first laser chip 12 to emit the first laser beam through the first positive electrode 113 and the first negative electrode 114, and controls the second laser chip 13 to emit the second laser beam through the second positive electrode 115 and the second negative electrode 116.

[0055] In some embodiments, the electric control assembly controls the first laser chip 12 to emit the first laser beam through the first positive electrode 113 and the first negative electrode 114, and controls the second laser chip 13 to emit the second laser beam through the second positive electrode 115 and the second negative electrode 116.

[0056] In some embodiments, please refer to Figure 5 and Figure 6 , which are structural schematic diagrams of another embodiment of the laser provided by the present application. Figure 5 Figure 6 is a side view of another embodiment of the laser provided by the present application. The laser 10 of the present embodiment comprises a first heat dissipation member 101, a second heat dissipation member 102, a first laser chip 103 and a second laser chip 104, and the first heat dissipation member 101 and the second heat dissipation member 102 are symmetrically arranged.

[0057] ​In this configuration, the first laser chip 103 is disposed on the side of the first heat sink 101 near the second heat sink 102, and the second laser chip 104 is disposed on the side of the second heat sink 102 near the first heat sink 101. The first laser chip 103 and the second laser chip 104 are correspondingly and symmetrically disposed. By reducing the distance between the first heat sink 101 and the second heat sink 102, the distance between the first laser chip 103 and the second laser chip 104 is reduced, thereby reducing the aperture size and volume of the back-end optical components, saving space, and reducing costs.

[0058] According to some embodiments of this application, see Figure 1 and Figure 2 As shown, the optical component 20 of this embodiment includes a slow-axis converging lens 21, a scanning component 22, and a fast-axis converging lens 23. The slow-axis converging lens 21 is disposed on the side of the first collimating lens 14 away from the first laser chip 12 and the second collimating lens 15 away from the second laser chip 13. The scanning component 22 is disposed on the side of the slow-axis converging lens 21 away from the laser 10. The fast-axis converging lens 23 is disposed on the side of the scanning component 22 close to the working plane 30, and is used to converge the first laser beam and the second laser beam onto the working plane 30.

[0059] In some embodiments, such as Figure 1 or Figure 2 As shown, a slow-axis converging lens is set along the path from which the first laser beam and the second laser beam are emitted. That is, the slow-axis converging lens 21 is set on the side of the first collimating lens 14 away from the first laser chip 12 and the second collimating lens 15 away from the second laser chip 13. The slow-axis converging lens 21 is used to converge the slow-axis beam with a certain divergence angle onto the working plane 30. The scanning component 22 is set on the side of the slow-axis converging lens 21 away from the laser 10 and is used to reflect the first laser beam and the second laser beam passing through the slow-axis converging lens 21. A fast-axis converging lens is set at a position close to the working plane 30 at a preset distance. That is, the fast-axis converging lens 23 is set on the side of the scanning component 22 close to the working plane 30. The fast-axis converging lens 23 compresses the spot width of the parallel first laser beam and the second laser beam so that the first laser beam and the second laser beam converge at the focal point of the fast-axis converging lens 23 onto the working plane 30.

[0060] The slow-axis converging lens 21 includes, but is not limited to, a cylindrical lens. Optionally, as... Figure 4 As shown, the focal point of the fast-axis converging lens 23 is located above the working plane 30.

[0061] In some embodiments, see Figure 7 As shown, Figure 7is a schematic diagram of an embodiment of the fast-axis converging lens provided by the present application for converging the first laser beam and the second laser beam to the working plane. The shape of the fast-axis converging lens 23 of this embodiment is a cylindrical surface.

[0062] In some embodiments, referring to Figure 8 as shown, Figure 8 is a schematic diagram of another embodiment of the fast-axis converging lens provided by the present application for converging the first laser beam and the second laser beam to the working plane. The shape of the fast-axis converging lens 23 of this embodiment is an aspherical surface.

[0063] This embodiment can further converge the collimated first laser beam and the collimated second laser beam in the slow-axis direction by arranging the slow-axis converging lens 21 on the side of the first collimating lens 14 away from the first laser chip 12 and on the side of the second collimating lens 15 away from the second laser chip 13, effectively reducing the divergence angle of the beams in the slow-axis direction and improving the focusing ability of the beams; the fast, uniform scanning of the first laser beam and the second laser beam on the working plane 30 can be achieved by arranging the scanning assembly 22 behind the slow-axis converging lens 21; the fast-axis converging lens 23 arranged on the side of the scanning assembly 22 close to the working plane 30 is used to converge the scanned first laser beam and the scanned second laser beam in the fast-axis direction, further optimizing the focusing characteristics of the beams and ensuring that the beams can be accurately converged to the target position on the working plane 30, achieving precise laser action on regions of different shapes and sizes and improving the adaptability and flexibility of the laser assembly 1 in various application scenarios.

[0064] According to some embodiments of the present application, the scanning assembly 22 includes a driving member 221 and a reflecting member 222, the reflecting member 222 is arranged on the side of the slow-axis converging lens 21 away from the laser 10, and the driving member 221 is connected with the reflecting member 222 and used to control the reflection direction of the reflecting member 222 so as to make the reflecting member 222 reflect the first laser beam and the second laser beam to the working plane 30.

[0065] The driving member 221 includes but is not limited to a motor, and the reflecting member 222 includes but is not limited to a reflecting mirror.

[0066] In some embodiments, the first laser beam and the second laser beam reach the reflecting member 222 through the slow-axis converging lens 21, the reflecting member 222 reflects the first laser beam and the second laser beam to the fast-axis converging lens 23, the reflection direction of the reflecting member 222 is controlled by the driving member 221, so that the fast-axis converging lens 23 converges the first laser beam and the second laser beam to different positions on the working plane 30.

[0067] When the reflective member 222 reflects the first laser beam and the second laser beam to different positions of the working plane 30, the direction in which the beams move on the working plane 30 is also called the scanning direction of the scanning assembly 22. In this embodiment, the scanning direction of the scanning assembly 22 is the slow-axis direction of the first laser chip 12 and the second laser chip 13. Due to the change in the reflection direction of the reflective member 222, a dot matrix scanning spot is formed on the working plane 30, for example Figure 2 as shown.

[0068] The driving member 221 controls the reflection direction of the reflective member 222 by controlling the rotation of the reflective member 222, for example Figure 2 as shown, and the arrow direction is the rotation direction of the reflective member 222.

[0069] By controlling the reflection direction of the reflective member 222 through the driving member 221, the embodiment can accurately guide the laser beams to the specified positions of the working plane 30, thereby improving the accuracy of the laser action.

[0070] According to some embodiments of the present application, the laser assembly 1 further comprises a control assembly (not shown in the figure), which is connected with the reflective member 222 and the laser 10 respectively, and is used to control the laser 10 to emit laser beams when the reflection direction of the reflective member 222 is fixed.

[0071] In some embodiments, the control assembly controls the first laser chip 12 of the laser 10 to emit the first laser beam and / or the second laser chip 13 of the laser 10 to emit the second laser beam when the reflection direction of the reflective member 222 is fixed, at which time a fixed light spot is formed on the working plane 30.

[0072] The control assembly of the embodiment can accurately control the timing of the laser 10 emitting laser beams according to the fixed state of the reflection direction of the reflective member 222, thereby ensuring that the laser beams are emitted only when the reflection direction of the reflective member 222 is fixed, and improving the accuracy of the laser action. In addition, the control assembly can control the first laser chip 12 to emit the first laser beam and / or the second laser chip 13 to emit the second laser beam, thereby meeting the needs of different application scenarios.

[0073] According to some embodiments of the present application, the laser assembly 1 further comprises a heat dissipation assembly (not shown in the figure), which is connected with the heat dissipation member 11 and is used to actively dissipate heat from the laser 10.

[0074] The heat dissipation mode of the heat dissipation assembly includes but is not limited to liquid cooling or air cooling.

[0075] Since the laser 10 generates a large amount of heat when it is powered on, the embodiment can actively dissipate heat from the laser 10 by connecting the heat dissipation assembly with the heat dissipation member 11.

[0076] Another embodiment of the present application also provides a laser cosmetic instrument, comprising the laser assembly 1 of the above-mentioned embodiments.

[0077] In summary, the present application symmetrical arrangement of the first laser chip 12 and the second laser chip 13 on the heat sink 11, so that the two laser chips light emitting area is kept at a small distance, so that the two laser beams can be effectively integrated without using the filter, simple structure and reduce the cost; and by setting the first collimating lens 14 and the second collimating lens 15, so that the first laser beam and the second laser beam in the fast axis direction can be collimated as parallel light, and then realize the output of the dual-wavelength laser, so as to realize the dual-wavelength cosmetic function, enhance the diversity and effectiveness of the treatment.

[0078] The above-mentioned is only the embodiment of the present application, not therefore limit the patent scope of the present application, any equivalent structure or equivalent flow transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A dual-wavelength laser assembly, characterized in that, The application relates to a laser assembly. The laser assembly comprises a laser for emitting a laser beam; and an optical assembly arranged on one side of the laser for reflecting the laser beam to a working plane. The laser comprises a heat dissipation member, a first laser chip, a second laser chip, a first collimating lens and a second collimating lens, the first laser chip and the second laser chip are symmetrically arranged on the heat dissipation member; the first laser chip emits a first laser beam, the first collimating lens is arranged on one side of the first laser chip and is used for collimating the first laser beam into parallel light in a fast-axis direction; the second laser chip emits a second laser beam, and the second collimating lens is arranged on one side of the second laser chip and is used for collimating the second laser beam into parallel light in the fast-axis direction. The heat dissipation member comprises a first surface and a second surface, the first surface and the second surface are oppositely arranged, the first laser chip is arranged on the first surface, and the second laser chip is arranged on the second surface.

2. The laser assembly of claim 1, wherein, The positive electrode of the first laser chip is connected with a positive electrode area of the first surface, and the negative electrode of the first laser chip is connected with a negative electrode area of the first surface; the positive electrode of the second laser chip is connected with a positive electrode area of the second surface, and the negative electrode of the second laser chip is connected with a negative electrode area of the second surface.

3. The laser assembly of claim 2, wherein, The first surface comprises a first positive electrode and a first negative electrode, the first positive electrode is arranged on the positive electrode area of the first surface, and the first negative electrode is arranged on the negative electrode area of the first surface; the second surface comprises a second positive electrode and a second negative electrode, the second positive electrode is arranged on the positive electrode area of the second surface, and the second negative electrode is arranged on the negative electrode area of the second surface.

4. The laser assembly of claim 2, wherein, The laser assembly further comprises an electric control assembly connected with the first positive electrode, the first negative electrode, the second positive electrode and the second negative electrode respectively, and used for controlling the first laser chip to emit the first laser beam and the second laser chip to emit the second laser beam.

5. The laser assembly of claim 4, wherein, The optical assembly comprises a slow-axis converging lens, a scanning assembly and a fast-axis converging lens, the slow-axis converging lens is arranged on one side of the first collimating lens away from the first laser chip and on one side of the second collimating lens away from the second laser chip; the scanning assembly is arranged on one side of the slow-axis converging lens away from the laser; and the fast-axis converging lens is arranged on one side of the scanning assembly close to the working plane and is used for converging the first laser beam and the second laser beam to the working plane.

6. The laser assembly of any of claims 1-5, wherein, The scanning assembly comprises a driving member and a reflecting member, the reflecting member is arranged on one side of the slow-axis converging lens away from the laser, and the driving member is connected with the reflecting member and is used for controlling the reflecting direction of the reflecting member so that the reflecting member reflects the first laser beam and the second laser beam to the working plane.

7. The laser assembly of claim 6, wherein, The laser assembly further comprises a control assembly connected with the reflecting member and the laser respectively and used for controlling the laser to emit a laser beam when the reflecting direction of the reflecting member is fixed.

8. The laser assembly of claim 7, wherein, ​ 9. The laser assembly of claim 1, wherein, The laser assembly further comprises a heat dissipation assembly connected with the heat dissipation member, for actively dissipating heat from the laser.

10. A laser cosmetic device, characterized by, The laser assembly comprises a laser module, a laser head, and a laser head connector. The laser assembly comprises a laser module, a laser head, and a laser head connector.

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