CN115211959A - Laser unhairing machine core and unhairing instrument - Google Patents

Abstract

The invention discloses a laser unhairing machine core and an unhairing instrument, wherein the laser unhairing machine core comprises a laser component and a lens mechanism, and is used for emitting laser beams towards a first direction; the lens mechanism is arranged in the first direction and can move along the first direction; when the laser beam irradiates the lens mechanism, the lens mechanism controls the laser beam to deflect towards a second direction and forces the laser beam to scan and output in the first direction. The laser hair removal device can achieve large-area laser push-broom hair removal on human skin, and is high in overall working efficiency, simple to operate, safe and controllable, and good in hair removal effect.

Description

Laser unhairing machine core and unhairing instrument

Technical Field

The invention relates to the technical field of laser depilation, in particular to a laser depilation movement and a depilation instrument.

Background

Based on the photothermal dynamics principle of the interaction of laser and human tissue, the growth of the hair of the human body is determined by melanin contained in the hair follicle of the human body, the light with proper intensity and frequency is selected to irradiate the hair follicle part corresponding to the human body, the laser can take the melanin as a target to act, and the temperature of the melanin rises after absorbing photon energy, so that the hair follicle tissue is accurately damaged under the condition of avoiding the damage of adjacent human tissue cells, and the aim of removing the hair is fulfilled. Compared with the traditional treatment means, the laser depilation technology has the advantages of no pain, no wound, convenience, rapidness, safety, easy operation, mild treatment means, permanent treatment effect and the like. Is easy to be accepted by patients, thereby becoming a research hotspot in the field of laser medical cosmetology.

At present, the conventional laser depilation device adopts a traditional lens optical system to expand laser beams emitted by a small air-cooled laser module so as to achieve the purpose of large-area treatment, but is limited by the power value of the laser module, so that the expanded laser power density value is low, the hair follicle tissues of a human body cannot be effectively damaged, the expected treatment effect of thorough depilation cannot be achieved, and if the laser beams are focused to reduce the area so as to improve the power density, the treatment efficiency is influenced because the treatment area is too small; if a laser with high power output is used, the cooling system needs to use a water circulation cooling method, which undoubtedly increases the volume and complexity of the system, and is inconvenient to carry and use.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an object of the invention is to propose a laser epilation movement comprising:

a laser assembly for emitting a laser beam toward a first direction;

a lens mechanism provided in the first direction and movable along the first direction; when the laser beam irradiates the lens mechanism, the lens mechanism controls the laser beam to deflect towards a second direction and forces the laser beam to scan and output in the first direction.

Preferably, the laser assembly comprises:

the fixing seat extends along the first direction;

the laser is arranged on the fixed seat and emits laser beams towards the first direction;

the first lens is arranged on the fixed seat and located on the light-emitting side of the laser, so that the laser beam is adjusted to be a collimated beam.

Preferably, the first lens is configured with a curved surface of a first predetermined curvature to force the laser beam to be adjusted into a collimated beam via the curved surface.

Preferably, the laser assembly further comprises a first refrigeration piece and a first cooling fin, the first refrigeration piece is attached to the fixed seat, and the first cooling fin is fixed to the first refrigeration piece.

Preferably, the lens mechanism includes:

a drive assembly disposed adjacent to the lens mechanism;

the movable seat is arranged on the driving assembly and is driven by the driving assembly;

and the second lens is arranged on the movable seat and is in the same straight line with the laser beam.

Preferably, the driving assembly includes:

a support disposed adjacent to the lens mechanism;

the motor is arranged on the bracket;

the screw rod is rotatably arranged on the support and is in transmission connection with the motor, the moving seat is connected with the screw rod, and when the motor drives the screw rod to rotate, the moving seat moves along the length direction of the screw rod.

Preferably, the second lens includes an incident surface, a reflecting surface, and an exit surface, the incident surface crossing the first direction and configured as a plane, the exit surface crossing the second direction and configured as a curved surface of a second predetermined curvature;

wherein when the laser beam is transmitted from the incident surface to the reflecting surface, the reflecting surface reflects the laser beam toward the second direction to force the laser beam to be output from the exit surface.

Preferably, the laser device further comprises a light-transmitting member located in the second direction and extending along the first direction for contacting the human skin to transmit the laser beam to the human skin.

Preferably, the side of light-transmitting piece is equipped with second refrigeration piece and second fin, the second refrigeration piece pastes and establishes on the light-transmitting piece, just the second fin with the second refrigeration piece is fixed mutually.

Another object of the invention is to propose a depilation instrument comprising a laser depilation movement as described above.

The scheme of the invention at least comprises the following beneficial effects:

according to the laser depilation machine core provided by the invention, the laser assembly emits the laser beam towards the first direction, when the laser beam irradiates the lens mechanism, the lens mechanism controls the laser beam to deflect towards the second direction, and meanwhile, the lens mechanism can reciprocate according to a certain frequency so as to force the laser beam to scan and output in the first direction, so that large-area laser push-broom depilation can be carried out on human skin, the integral working efficiency is higher, the operation is simple, the safety and the controllability are realized, and the depilation effect is better.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Figure 1 is a schematic structural view of a laser epilation cartridge provided in an embodiment of the invention;

fig. 2 is an exploded view of a laser epilation cartridge provided in an embodiment of the invention;

figure 3 is a schematic optical path diagram of a laser epilation cartridge provided in an embodiment of the invention;

fig. 4 is a schematic diagram of an optical path of a second lens provided in the embodiment of the present invention;

the reference numbers illustrate:

10. a laser assembly; 11. a fixed seat; 12. a laser; 13. a first lens; 14. a first refrigeration sheet; 15. a first heat sink; 20. a lens mechanism; 21. a drive assembly; 211. a support; 212. a motor; 213. a screw; 22. a movable seat; 23. a second lens; 231. an incident surface; 232. a reflective surface; 233. an exit surface; 30. a light transmissive member; 40. a second refrigeration sheet; 50. a second heat sink.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only and are not to be construed as limiting the present invention, and all other embodiments that can be made by one skilled in the art without inventive effort based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A laser hair removal cartridge and a hair removal device according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a laser hair removal cartridge provided in an embodiment of the present invention includes a laser assembly 10 and a lens mechanism 20 for emitting a laser beam toward a first direction; the lens mechanism 20 is provided in a first direction and movable in the first direction; when the laser beam is irradiated to the lens mechanism 20, the lens mechanism 20 controls the laser beam to deflect towards the second direction and forces the laser beam to scan out in the first direction.

Wherein, the first direction represents the light emitting direction of the laser beam, the second direction may be a direction perpendicular to the first direction, and when the laser beam irradiates on the lens mechanism 20, the lens mechanism 20 may reflect and deflect the laser beam to the second direction for outputting; therefore, when the lens mechanism 20 moves along the first direction, the laser beam can move back and forth along with the lens mechanism 20 within a certain range, so as to realize large-area push-broom depilation of human skin; it is understood that the frequency of the reciprocal movement of the lens mechanism 20 can be set according to actual requirements, and the distance range of the reciprocal movement can also be set according to actual requirements, for example, the distance range of the reciprocal movement can be 2-10cm, and the frequency of the reciprocal movement can be 2 times per second, which is not limited herein.

The inventor finds in research that the action mechanism of laser depilation reflects immediate histological change in skin and action on hair growth cycle, hair follicles irradiated by laser immediately show keratinocyte swelling, apoptosis and necrosis, whether full-layer necrosis of the hair follicles can be achieved depends on the amount of absorbed energy, laser can slowly, locally and selectively damage the hair follicles of a human body, laser treatment can not completely destroy all the hair follicles at one time, and for human body parts with dense hair follicle growth, laser treatment can cause degeneration and necrosis of partial hair follicle cells, so that hair regeneration is effectively prevented for a long time; for the part with sparse hair, only partial damage of hair follicles can be caused after laser treatment, so that the deformation of the hair follicles is reduced and the transformation of the hair follicles from a growth phase to a catagen phase and a telogen phase is accelerated, and as a result, the hairs are shorter and thinner, the color is lighter and the growth speed is obviously slowed down, and when the hair removal treatment is carried out by using the optimal laser parameters, 15% -30% of the hair follicles are completely removed each time to achieve permanent hair removal. Alternatively, laser hair removal can be used to achieve temporary hair removal by mediating a resting-phase like state of the hair follicle.

Therefore, according to the laser depilating movement provided by the invention, the laser component 10 emits the laser beam towards the first direction, when the laser beam irradiates the lens mechanism 20, the lens mechanism 20 controls the laser beam to deflect towards the second direction, and meanwhile, the laser beam can reciprocate according to a certain frequency to force the laser beam to scan and output in the first direction, so that large-area laser push-broom depilating on human skin can be realized, the whole working efficiency is higher, the operation is simple, the safety and the controllability are realized, and the depilating effect is better.

As shown in fig. 2 and 3, the laser assembly 10 includes a fixing base 11, a laser 12, and a first lens 13, where the fixing base 11 extends along a first direction; the laser 12 is arranged on the fixed seat 11 and emits laser beams towards a first direction; the first lens 13 is arranged on the fixed seat 11 and positioned on the light-emitting side of the laser 12 to adjust the laser beam into a collimated beam; preferably, the first lens 13 is configured with a curved surface of a first predetermined curvature to force the laser beam to be adjusted into a collimated beam via the curved surface; further, the laser module 10 further includes a first cooling plate 14 and a first cooling fin 15, the first cooling plate 14 is attached to the fixing base 11, and the first cooling fin 15 is fixed to the first cooling plate 14.

In this embodiment, the fixing base 11 may be made of a heat sink material, the first cooling plate 14 may be a semiconductor cooling plate, the laser 12 may output linear continuous laser with an output wavelength of 808nm and an outlet spot of 10 × 0.1mm; and the divergence angle of the laser light may be 20 degrees, the output power may be 30W, the first lens 13 may be K9 glass, and the size of the first lens 13 may be 15 × 3mm, the first predetermined curvature is a radius R25.8, and the focal length may be F27mm.

In the working process of the laser 12, heat generated by the laser 12 can be transferred to the first cooling plate 14 and the first cooling fin 15 through the fixing seat 11, so that the laser 12 is cooled by the first cooling plate 14 and the first cooling fin 15, and the laser can stably work for a long time; the laser beam emitted from the laser 12 is a divergent laser beam, and is adjusted to a parallel collimated beam by the first lens 13, so that the laser beam can be irradiated to the lens mechanism 20 to be deflected and reflected.

As shown in fig. 3 and 4, the lens mechanism 20 includes a driving assembly 21, a movable base 22 and a second lens 23, the driving assembly 21 is disposed adjacent to the lens mechanism 20; the movable base 22 is provided on the driving assembly 21 to be driven by the driving assembly 21; the second lens 23 is arranged on the movable seat 22 and is in the same straight line with the laser beam; the second lens 23 includes an incident surface 231, a reflecting surface 232, and an exit surface 233, the incident surface 231 intersects with the first direction and is configured as a plane, and the exit surface 233 intersects with the second direction and is configured as an arc surface with a second predetermined curvature; wherein, when the laser beam is transmitted from the incident surface 231 to the reflecting surface 232, the reflecting surface 232 reflects the laser beam toward the second direction to force the laser beam to be output from the exit surface 233.

In this embodiment, the second lens 23 may be a triangular prism, the corresponding size of which may be 15 × 15mm, and the curvature radius of the exit surface 233 is R27, when the laser beam is irradiated to the second lens 23, the laser beam enters through the incident surface 231 and is totally reflected by the reflecting surface 232 to be deflected and reflected to the second direction and output from the exit surface 233, the parallel laser beam is converged by the exit surface 233 to form a linear laser spot, and the linear laser spot is driven to move by the driving component 21, so that the hair removal by pushing on the skin surface of the human body can be performed; it can be understood that the laser spot formed by converging the laser 12 with smaller power not only can improve the output density of the laser beam, but also can improve the scanning area of the laser output, improve the working efficiency and the reliability of the depilation treatment, shorten the treatment course and period, improve the treatment effect and bring great convenience to users; it is understood that the incident surface 231 and the exit surface 233 may be in a right-angle position and the reflecting surface 232 may be in a slanted position.

Further, the driving assembly 21 includes a bracket 211, a motor 212 and a screw 213, wherein the bracket 211 is disposed adjacent to the lens mechanism 20; the motor 212 is arranged on the bracket 211; the screw 213 is rotatably disposed on the bracket 211 and is in transmission connection with the motor 212, and the movable base 22 is in screw connection with the screw 213, so that when the motor 212 drives the screw 213 to rotate, the movable base 22 moves along the length direction of the screw 213.

When the motor 212 drives the screw rod 213 to rotate, the second lens 23 moves along with the moving seat 22 in the length direction of the screw rod 213, so that when the linear laser light spots are output towards the second direction, large-area scanning unhairing can be formed on the surface of the skin of a human body, the working efficiency of the unhairing machine is improved, and meanwhile, a laser beam with high power density can be provided, and the unhairing effect is improved.

As shown in fig. 2 and 3, further comprising a light-transmitting member 30, the light-transmitting member 30 being located in the second direction and extending in the first direction for contacting the human skin to transmit the laser beam to the human skin; the side surface of the light-transmitting member 30 is provided with a second refrigeration sheet 40 and a second cooling fin 50, the second refrigeration sheet 40 is attached to the light-transmitting member 30, and the second cooling fin 50 is fixed to the second refrigeration sheet 40.

In this embodiment, the light-transmitting member 30 may be a sapphire crystal, the size of the light-transmitting member 30 may be 15 × 50 × 70mm, and the effective use area thereof is 15 × 50mm2, that is, the use area of the light-transmitting member 30 may correspond to the movement range of the second lens 23, when in use, the light-transmitting member 30 may be in contact with the skin of the human body, so that the laser beam may be transmitted through the light-transmitting member 30 and irradiated onto the skin surface of the human body after being converged, thereby laser depilation is realized, and the light-transmitting member 30 may be cooled and dissipated by the second cooling fin 40 and the second cooling fin 50 in the working process, and the thermal effect generated by the action of the laser on the human body is reduced, thereby ensuring the treatment work of realizing high-efficiency and large-area depilation stably for a long time. Alternatively, the power of the first cooling plate 14 and the second cooling plate 40 may be 40W, and the operating voltage may be 12V; the second refrigeration piece 40 and the second cooling fin 50 can be sealed and fixed between the transparent piece 30 and the heat-dissipating silica gel, so that the transparent piece 30 can be isolated from the outside air with the second refrigeration piece 40 and the second cooling fin 50, the transparent piece 30 is moisture-proof and damp-proof, and the service lives of the second refrigeration piece 40 and the second cooling fin 50 can be prolonged.

An embodiment of the invention provides a depilating apparatus, comprising a laser depilating cartridge as described above. Wherein, this appearance that moults has the shell to the core that moults foretell laser establishes work in the shell, should moult the appearance and can converge and export the laser beam and moult, guaranteed that laser power density can reach the effect of destroying the hair follicle, remove the laser beam simultaneously and remove and can push away out large tracts of land treatment area, improved work efficiency greatly and the reliability of the treatment of mouling, shortened treatment course and cycle, improved treatment, brought very big facility for the user.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A laser epilation cartridge, comprising:

a laser assembly for emitting a laser beam toward a first direction;

a lens mechanism provided in the first direction and movable in the first direction; when the laser beam irradiates the lens mechanism, the lens mechanism controls the laser beam to deflect towards a second direction and forces the laser beam to scan and output in the first direction.

2. The laser epilation cartridge of claim 1, wherein the laser assembly comprises:

the fixed seat extends along the first direction;

the laser is arranged on the fixed seat and emits laser beams towards the first direction;

the first lens is arranged on the fixed seat and positioned on the light-emitting side of the laser so as to adjust the laser beam into a collimated beam.

3. The laser hair removal cartridge of claim 2, wherein the first lens is configured with an arcuate surface of a first predetermined curvature to force the laser beam to be adjusted into a collimated beam via the arcuate surface.

4. The laser depilation movement of claim 2, wherein the laser assembly further comprises a first refrigeration piece and a first cooling fin, the first refrigeration piece is attached to the fixing seat, and the first cooling fin is fixed with the first refrigeration piece.

5. A laser epilation cartridge as claimed in claim 1, wherein the lens mechanism comprises:

a drive assembly disposed adjacent to the lens mechanism;

the moving seat is arranged on the driving component and is driven by the driving component;

and the second lens is arranged on the movable seat and is positioned on the same straight line with the laser beam.

6. The laser epilation cartridge of claim 5, wherein the drive assembly comprises:

a support disposed adjacent to the lens mechanism;

the motor is arranged on the bracket;

the screw rod is rotatably arranged on the support and is in transmission connection with the motor, the moving seat is connected with the screw rod, and when the motor drives the screw rod to rotate, the moving seat moves along the length direction of the screw rod.

7. The laser epilation cartridge according to claim 5, wherein the second lens comprises an entrance face, a reflection face and an exit face, the entrance face intersecting the first direction and being configured as a plane, the exit face intersecting the second direction and being configured as an arc of a second predetermined curvature;

wherein when the laser beam is transmitted from the incident surface to the reflecting surface, the reflecting surface reflects the laser beam toward the second direction to force the laser beam to be output from the exit surface.

8. A laser epilation cartridge according to claim 1, further comprising an optically transparent member located in the second direction and extending in the first direction for contacting human skin to transmit the laser beam onto the human skin.

9. The laser depilation movement of claim 8, wherein a second cooling plate and a second cooling fin are arranged on a side surface of the light-transmitting member, the second cooling plate is attached to the light-transmitting member, and the second cooling fin is fixed to the second cooling plate.

10. An epilating apparatus comprising a laser epilation cartridge as claimed in any one of claims 1 to 9.

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