Dot matrix laser
By designing a combination of laser and optical components, and using semi-reflective lenses and total reflection mirrors to form a dot matrix spot, the problems of complex structure and poor medical effect of fractional lasers are solved, and a uniform energy fractional laser cosmetic effect is achieved.
Patent Information
- Application Number
- CN202520523166.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing fractional lasers have complex structures and poor medical efficacy.
The design employs a combination of laser components and optical components, including a laser chip, collimating lens, multiple semi-reflective lenses, total reflection mirrors, and compound eye lenses. The optical components split and reflect the parallel beam to form a surface light plate and a dot matrix light spot. The arrangement of the semi-reflective lenses and total reflection mirrors is adjusted to achieve uniform energy distribution.
It achieves a simple structure and uniform energy fractional laser cosmetic effect, enhancing the overall effect of medical aesthetics.
Smart Images
Figure CN223744138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of laser medical cosmetology, in particular to a fractional laser. BACKGROUND
[0002] The fractional laser is a brand-new medical optical skin care concept, and is a non-exfoliation treatment method. It improves skin quality from the basal layer, provides non-invasive treatment, and is suitable for different skin conditions. Through a specific wavelength, it penetrates the skin by 5mm in thickness, directly reaches the dermis layer of the skin, directly acts on the collagen cells and fibroblasts in the dermis layer, and makes the collagen in the skin be regenerated, so as to truly achieve the effect of skin care. It will not cause any damage to the skin. After the laser acts on the skin, photochemical action is generated, so that the chemical changes of the molecular structure inside the collagen fibers and elastic fibers in the dermis layer are generated, and the original elasticity is restored. SUMMARY
[0003] The present application mainly provides a fractional laser, which solves the problems of complex structure and poor medical effect of the existing fractional laser.
[0004] The present application provides a fractional laser, which comprises:
[0005] A laser assembly is used for emitting parallel light beams.
[0006] An optical assembly is arranged on one side of the laser assembly and is used for dividing and reflecting the parallel light beams emitted by the laser assembly to a working plane.
[0007] The optical assembly comprises a plurality of half-reflective half-transmissive lenses, a full reflective mirror, and a compound eye lens. The plurality of half-reflective half-transmissive lenses and the full reflective mirror are arranged in sequence and are inclined. The full reflective mirror is arranged at the end. The laser assembly emits parallel light beams. After the parallel light beams pass through the plurality of half-reflective half-transmissive lenses and the full reflective mirror in sequence, the parallel light beams are reflected to the working plane to form a surface light panel. The surface light panel passes through the compound eye lens arranged at the front end to form a fractional light spot.
[0008] The laser assembly comprises a laser chip, a first collimating lens, and a second collimating lens. The laser chip and the first collimating lens and the second collimating lens are arranged in sequence. The light beams emitted by the laser chip pass through the first collimating lens and the second collimating lens in sequence.
[0009] The light beams emitted by the laser chip are converted into parallel light beams after passing through the first collimating lens and the second collimating lens.
[0010] The width of the light beams emitted by the laser assembly and collimated by the first collimating lens is the same as the arrangement interval between each half-reflective half-transmissive lens and the full reflective mirror.
[0011] The light beam emitted by the laser assembly is reflected by the plurality of half-reflection half-transmission lenses and the full reflection mirror to have the same spot energy.
[0012] The compound eye lens is arranged above the half-reflection half-transmission lens array, the surface spot reflected by the half-reflection half-transmission lens array is vertically incident into the compound eye lens, and a dot array spot is formed after the compound eye lens.
[0013] The dot array laser of the present application comprises a laser assembly and an optical assembly arranged on one side of the laser assembly; the laser assembly is used to emit parallel light beams; the optical assembly arranged on one side of the laser assembly is used to divide and reflect the parallel light beams emitted by the laser assembly to a working plane; the optical assembly comprises a plurality of half-reflection half-transmission lenses, a full reflection mirror, and a compound eye lens; the plurality of half-reflection half-transmission lenses and the full reflection mirror are arranged in sequence with an inclination, and the full reflection mirror is arranged at the end; the laser assembly emits parallel light beams, the parallel light beams are reflected by the plurality of half-reflection half-transmission lenses and the full reflection mirror in sequence to form a surface light panel in the direction of the working plane; and the surface light spot is formed into a dot array spot by the compound eye lens arranged at the front end. The plurality of half-reflection half-transmission lenses and the full reflection mirror are arranged in angle intervals on the light path of the laser emission, so that the parallel light beams can be effectively divided and reflected layer by layer when passing through the laser chip. The structure is simple, the divided energy is uniform, and the output after passing through the compound eye lens is achieved, thereby realizing the dot array laser beauty function. BRIEF DESCRIPTION OF DRAWINGS
[0014] 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 be obtained by those skilled in the art without creative labor. Among them:
[0015] Figure 1 is a structural schematic diagram of the dot array laser provided by the present application. DETAILED DESCRIPTION
[0016] 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.
[0017] 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 this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise required by context, singular terms shall include pluralities and vice versa. Unless otherwise required by context, the use herein of the singular is also to be construed as a use of the plural and vice versa.
[0018] 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.
[0019] 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 application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a separate or alternative embodiment to the other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with each other.
[0020] 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 " / " herein generally represents an "or" relationship between the front and rear associated objects.
[0021] 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).
[0022] In the description of the embodiments of the present application, 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 indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.
[0023] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be connected between, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0024] The energy emitted by the semiconductor laser is in a Gaussian distribution. The traditional planar spot formed by using the beam divergence of the semiconductor laser itself has a strong energy in the center area, and the energy gradually decreases around the center area. In order to keep the energy of each dot consistent in the dot matrix formed by this scheme, the size of each focusing mirror of the compound eye lens needs to be adjusted to make the energy received by each focusing mirror consistent, which leads to inconsistent spacing of the generated dot matrix, thereby resulting in poor skin rejuvenation or wrinkle removal effect.
[0025] The present application provides a dot laser, please see Figure 1 , Figure 1 is a structural schematic diagram of an embodiment of the dot laser provided by the present application. The dot laser of the embodiment comprises a laser assembly 10, an optical assembly 20 and a working surface 30.
[0026] The laser assembly 10 is used for emitting parallel light beams.
[0027] The laser assembly 10 comprises a laser chip 11, a first collimating lens 12 and a second collimating lens 13. The laser chip 11, the first collimating lens 12 and the second collimating lens 13 are arranged in sequence. The light beams emitted by the laser chip 11 pass through the first collimating lens 12 and the second collimating lens 13 in sequence.
[0028] The light beams emitted by the laser chip 11 are converted into parallel light beams after passing through the first collimating lens 12 and the second collimating lens 13.
[0029] The optical assembly 20 is arranged on one side of the laser assembly 10 and is used for dividing and reflecting the parallel light beams emitted by the laser assembly 10 to the working surface 30.
[0030] The optical assembly 20 comprises a plurality of half-reflecting half-transmitting lenses 21-25, a full reflecting mirror 26, and an array of fly-eye lenses 27; the plurality of half-reflecting half-transmitting lenses 21-25 and the full reflecting mirror 26 are arranged in sequence with an inclination, and the full reflecting mirror 26 is arranged at the end; the laser assembly 10 emits parallel light beams, which pass through the plurality of half-reflecting half-transmitting lenses 21-25 and the full reflecting mirror 26 in sequence, and are reflected to the working surface 30 to form a surface light panel; the surface light panel passes through the array of fly-eye lenses 27 arranged at the front end to form a dot array light spot.
[0031] The width of the light beams emitted by the laser assembly 10 after collimation by the first collimating lens 12 is the same as the arrangement interval between each half-reflecting half-transmitting lens 21-25 and the full reflecting mirror 26.
[0032] The reflected light spot energy of the light beams emitted by the laser assembly 10 through the plurality of half-reflecting half-transmitting lenses 21-25 and the full reflecting mirror 26 is the same.
[0033] The number of half-reflecting half-transmitting lenses is preferably set to effectively adjust the area size of the output light spot; the reflection energy and transmission energy of the half-reflecting half-transmitting lenses 21-25 are preferably set to effectively adjust the energy distribution of the output light spot.
[0034] The fly-eye lenses 27 are arranged above the array of half-reflecting half-transmitting lenses 21-25, the surface light spot reflected by the array of half-reflecting half-transmitting lenses 21-25 is perpendicularly incident into the fly-eye lenses 27, and a dot array light spot is formed after passing through the fly-eye lenses 27.
[0035] In some embodiments, the interval between the half-reflecting half-transmitting lenses 21-25 and the full reflecting mirror 26 can be adjusted to form a bar-shaped light spot array with a fixed interval.
[0036] In some embodiments, the laser chip 11 is arranged on a heat sink, and the heat sink material is preferably a composite material such as ceramic (AlN, Al2O3), copper tungsten (CuW), copper molybdenum (CuMo), etc. These materials have good thermal conductivity and can match the thermal expansion coefficient of the chip, reducing stress and damage caused by differences in thermal expansion.
[0037] In some embodiments, the semiconductor laser chip has a large divergence angle and an elliptical light spot, with a fast-axis divergence angle of up to 30-60° and a slow-axis divergence angle of 10°, resulting in poor beam quality and thus being unable to be directly applied. The optical quality of the output beam can be effectively improved by setting optical lenses to optically shape the fast-axis divergence angle and the slow-axis divergence angle of the laser chip 11. The first collimating lens 12 is fixed on the heat sink by UV glue to collimate the light beam emitted by the laser chip 11 in the fast-axis direction. The light beam after fast-axis collimation is parallel in the fast-axis direction. The second collimating lens 13 is arranged on the light path of the laser chip 11 and behind the first collimating lens 12. The light beam after slow-axis collimation is parallel in the slow-axis direction. The light beam after the first collimating lens 12 and the second collimating lens 13 is parallel.
[0038] In some embodiments, the half-mirror and the full mirror in the optical assembly 20 can be formed into an integrated structure by means of gluing, fixing, etc. Each half-mirror and full mirror is arranged at an angle of 90° with respect to the laser beam.
[0039] In some embodiments, five half-mirrors and one full mirror are used to achieve an output uniform light spot. The first half-mirror 21 reflects and transmits the light beam at a ratio of 1 / 6, the second half-mirror 22 reflects and transmits the light beam at a ratio of 1 / 5, the third half-mirror 23 reflects and transmits the light beam at a ratio of 1 / 4, the fourth half-mirror 24 reflects and transmits the light beam at a ratio of 1 / 3, and the fifth half-mirror 25 reflects and transmits the light beam at a ratio of 1 / 2. The full mirror 26 reflects the light beam at a ratio of 1. The compound eye lens 27 is arranged in the reflection direction of the half-mirror array, and each focusing lens array of the compound eye lens 27 corresponds to a reflected light spot. The dot array light spot 30 is generated after focusing by the compound eye lens 27.
[0040] In this embodiment, the multiple half-mirrors 21-25 and the full mirror 26 are arranged in sequence on the light path of the laser assembly 10, so that the parallel light beam emitted by the laser assembly 10 can be divided and reflected to the working plane multiple times. The parallel light beam is effectively divided and arranged into a surface light spot multiple times, and the dot array light spot 30 is generated after focusing by the compound eye lens 27. The structure is simple and the energy is uniform, effectively enhancing the medical cosmetic effect.
[0041] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation based on the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.
Claims
1. A dot laser, characterized by, The application relates to a laser module and a laser device. The laser module comprises a laser assembly for emitting parallel light beams; and an optical assembly arranged on one side of the laser assembly for splitting and reflecting the parallel light beams emitted by the laser assembly to a working plane. The optical assembly comprises a plurality of half-reflection half-transmission lenses, full reflection mirrors and compound eye lenses; the plurality of half-reflection half-transmission lenses and the full reflection mirrors are arranged in sequence and are inclined; the full reflection mirror is arranged at the end; the laser assembly emits parallel light beams; the parallel light beams pass through the plurality of half-reflection half-transmission lenses and the full reflection mirrors in sequence and are reflected to the working plane to form a surface light panel; and the surface light panel passes through the compound eye lens arranged at the front end to form a dot array light spot. The laser assembly comprises a laser chip, a first collimating lens and a second collimating lens; the laser chip, the first collimating lens and the second collimating lens are arranged in sequence; and the light beams emitted by the laser chip pass through the first collimating lens and the second collimating lens in sequence.
2. The dot laser according to claim 1, wherein, The light beams emitted by the laser chip are converted into parallel light beams after passing through the first collimating lens and the second collimating lens.
3. The dot laser according to claim 2, wherein, The width of the light beams emitted by the laser assembly and collimated by the first collimating lens is the same as the arrangement interval between the plurality of half-reflection half-transmission lenses and the full reflection mirror.
4. The dot laser according to claim 1, wherein, The reflected light spot energy of the light beams emitted by the laser assembly and reflected by the plurality of half-reflection half-transmission lenses and the full reflection mirror is the same.
5. The dot laser according to claim 1, wherein, The laser assembly further comprises a compound eye lens; the compound eye lens is arranged above the half-reflection half-transmission lens array; the surface light spot reflected by the half-reflection half-transmission lens array is vertically incident into the compound eye lens; and the surface light spot forms a dot array light spot after passing through the compound eye lens.
6. The dot laser according to claim 1, wherein,