Laser freckle removing device

Abstract

The laser freckle removing device comprises a shell, a fixing part, a laser mechanism, a camera shooting assembly and a main control circuit board, the shell is provided with a laser light outlet, the fixing part is arranged outside the shell and used for fixing the shell to a human body part, and the laser mechanism is arranged in the shell and used for fixing the shell to the human body part. The generated laser is emitted to an illumination area from a laser light outlet of the shell and forms a laser spot, the camera shooting assembly is used for obtaining a target image about a target color spot and the laser spot in the illumination area, and a control system is integrated on the main control circuit board and used for obtaining parameter information of the target color spot and the laser spot according to the target image. And the laser mechanism is controlled to move and / or focus according to the parameter information, so that the laser spot is located in the contour range of the target color spot and moves in the contour range of the target color spot according to the planned path, and therefore, the freckle removing device can be fixed at any part of a human body, two hands are liberated, and automatic freckle removing can be realized without assistance of other people.

Description

Technical Field

[0001] The present invention relates to the technical field of laser freckle removal, and in particular to a laser freckle removal device. Background Art

[0002] Different from traditional chemical or physical peeling methods, laser freckle removal is an effective freckle removal method. It uses laser technology to decompose melanin deep in the skin through the laser energy acting on the skin surface, achieving the effect of freckle removal. Therefore, laser freckle removal is less traumatic to the skin, has high safety, and has better freckle removal effect. The existing laser freckle removal equipment is large in size, high in cost, and complex in operation. It requires professional operation. Therefore, most users usually go to hospitals or medical beauty institutions for services when they need freckle removal.

[0003] There are some portable laser devices on the market, but these portable laser devices still require manual holding of the device to perform freckle removal operations. Especially for parts of the body that are difficult to operate, such as the forehead, neck, and back of the body, others are needed to assist in freckle removal, which is extremely inconvenient for users to use and the experience is poor. Summary of the invention

[0004] The embodiment of the present invention provides a laser freckle removal device, which can be fixed on any part of the human body, freeing both hands, and can achieve automatic freckle removal without the assistance of others, which is extremely convenient for users to use and improves user experience.

[0005] In order to achieve the above object, an embodiment of the present invention provides a laser freckle removal device, comprising:

[0006] The housing is provided with a laser light outlet;

[0007] A fixing member is arranged outside the housing and is used to fix the housing on a part of the human body, and the laser light outlet of the housing faces the part of the human body, thereby defining an irradiated area on the part of the human body;

[0008] A laser mechanism is disposed inside the housing, and the generated laser is emitted from the laser light outlet to the illumination area, and forms a laser spot in the illumination area;

[0009] A camera assembly is disposed inside the housing and is used to obtain a target image of a target color spot and a laser spot in the illumination area;

[0010] A main control circuit board is arranged inside the shell, and a control system is integrated on the main control circuit board. The control system is used to obtain parameter information of the target color spot and the laser spot according to the target image, and control the movement and / or focusing of the laser mechanism according to the parameter information, so that the laser spot is located within the contour range of the target color spot and moves within the contour range of the target color spot according to the planned path.

[0011] Furthermore, the fixing member includes a strap and a pull ring, the pull ring is on the shell, the strap is fixed to the pull ring, and the shell is bound to the human body part through the strap.

[0012] Furthermore, the fixing member includes a chassis adsorption structure, and the chassis adsorption structure is arranged at the outer edge area of ​​the laser light outlet, and is used to adsorb the shell on a part of the human body.

[0013] Further, the laser mechanism includes a laser emission module and a displacer for driving the laser emission module to move, and the laser emission module includes a laser and a focusing device for focusing the laser;

[0014] The parameter information includes profile information, and the control system is specifically used for:

[0015] Acquire the area of ​​the target color spot and the coordinate value of a preset reference point within the contour range of the target color spot according to the contour information of the target color spot;

[0016] Acquire the area of ​​the laser spot and the coordinate value of the center point of the laser spot contour range according to the contour information of the laser spot;

[0017] According to the difference between the coordinate value of the center point and the coordinate value of the preset reference point, the displacer drives the laser emission module to move so that the center point of the laser spot coincides with the preset reference point;

[0018] It is determined whether the area of ​​the laser spot is larger than the area of ​​the target color spot. If so, the focusing device is controlled to focus the laser so that the area of ​​the laser spot is smaller than the area of ​​the target color spot, thereby making the laser spot within the contour range of the target color spot.

[0019] Furthermore, the control system is also used to calculate the shortest distance between the preset reference point and the outline of the target color spot after determining that the area of ​​the laser spot is larger than the area of ​​the target color spot;

[0020] The control system is used to control the focusing device to focus the laser so that the radius of the laser spot does not exceed the shortest distance, thereby making the laser spot located within the contour range of the target color spot.

[0021] Furthermore, the camera assembly includes a first camera and a second camera, the first camera and the second camera are arranged oppositely in the housing, and the camera directions are both toward the laser light outlet;

[0022] The first camera and the second camera each include multiple cameras, so as to obtain multiple target images of the target color spot and the laser spot in real time through the multiple cameras; the control system is used to obtain parameter information of the target color spot and the laser spot according to the target image obtained by at least one camera.

[0023] Furthermore, each of the first camera and the second camera has four cameras, and the four cameras are respectively a white light camera, a red light camera, a green light camera and a blue light camera;

[0024] The control system is also used to calculate the distances of the target color spot from the first camera and the second camera according to the target image acquired by one of the first cameras and the target image acquired by one of the second cameras, and to establish a three-dimensional model of the target color spot by a binocular vision three-dimensional reconstruction algorithm according to the distance and the target image;

[0025] The control system is also used to determine attribute information of the target color spot based on the three-dimensional model, the target image acquired by the first camera and the target image acquired by the second camera, the attribute information including the type, color depth and height of the target color spot, and obtain a predetermined laser power based on the attribute information of the target color spot, so that the laser emits laser at the predetermined laser power.

[0026] Furthermore, after the laser spot completes a movement along the planned path, the control system also adjusts the predetermined laser power according to the target images acquired in real time by the first camera and the second camera, and causes the displacer to drive the laser to move, so that the laser spot moves again within the contour of the target color spot according to the planned path until the color depth and height of the target color spot meet the preset requirements.

[0027] Furthermore, it also includes a communication module, and the control system is connected to the external terminal device through the communication module;

[0028] The control system is also used to quantify the freckle removal effect, and send the quantified freckle removal effect to an external terminal device through the communication module.

[0029] Furthermore, it also includes a human-computer interaction interface, which is integrated on an external terminal device. The control system is communicatively connected to the external terminal device via a communication module. The human-computer interaction interface is used to receive user control instructions, and the control system is also used to control the movement and / or focusing of the laser mechanism according to the control instructions.

[0030] Beneficial effects: The laser spot removal device of the present invention comprises a shell, a fixing part, a laser mechanism, a camera assembly and a main control circuit board, wherein the shell is provided with a laser light outlet, the fixing part is provided on the outside of the shell, and is used to fix the shell on a part of the human body, the laser light outlet of the shell is directed toward the part of the human body, thereby defining an irradiated area on the part of the human body; the laser mechanism is provided inside the shell, and the generated laser is emitted from the laser light outlet to the irradiated area, and a laser spot is formed in the irradiated area; the camera assembly is provided inside the shell, and is used to obtain a target image of a target color spot and a laser spot in the irradiated area; the main control circuit board The main control circuit board is arranged inside the shell, and a control system is integrated on the main control circuit board. The control system is used to obtain parameter information of the target color spot and the laser spot according to the target image, and control the movement and / or focusing of the laser mechanism according to the parameter information, so that the laser spot is located within the contour range of the target color spot, and moves within the contour range of the target color spot according to the planned path. Therefore, the freckle removal device can be fixed on a part of the human body through the action of the fixing part. The freckle removal process does not require holding the instrument all the time, and both hands can be freed. Moreover, automatic freckle removal can be achieved through the control system without the assistance of others, which is extremely convenient for users to use and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The technical solutions and beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0032] Figure 1 It is a schematic structural diagram of the laser freckle removal device of the present invention;

[0033] Figure 2 It is a structural schematic diagram of four cameras of the first camera and the second camera of the present invention;

[0034] Figure 3 It is a schematic diagram of the laser spot size adjustment process of the present invention;

[0035] Figure 4 is a schematic diagram of the planning path of the laser spot of the present invention;

[0036] Figure 5 It is a schematic diagram of the working process of the laser spot removal device of the present invention. DETAILED DESCRIPTION

[0037] Please refer to the drawings, in which the same component symbols represent the same components, and the principle of the present invention is illustrated by implementing it in an appropriate computing environment. The following description is based on the illustrated specific embodiment of the present invention, which should not be considered as limiting other specific embodiments of the present invention that are not described in detail herein.

[0038] See also Figures 1 to 5 A laser spot removal device 100 according to an embodiment of the present invention includes a housing 11 , a fixing member 12 , a laser mechanism 13 , a camera assembly 14 and a main control circuit board 15 .

[0039] The housing 11 is provided with a laser light outlet 111. The fixing member 12 is arranged outside the housing 11, and is used to fix the housing 11 on a human body part. The laser light outlet 111 of the housing 11 faces the human body part, thereby defining an illumination area on the human body part. The illumination area is the area on the human body part corresponding to the laser light outlet 111. When the housing 11 is fixed to the human body part by the fixing member 12, the laser light outlet 111 is close to the human body part. The human body part is, for example, an arm, forehead or neck. For example, when freckles need to be removed on the arm, the housing 11 is fixed to the arm by the fixing member 12, and the outer edge of the laser light outlet 111 of the housing 11 is close to the arm, and the laser light outlet faces the freckle removal position on the arm, thereby defining an illumination area on the arm. The laser mechanism 13 is arranged inside the housing 11, and the laser generated by it is emitted from the laser light outlet 11 to the illumination area, and a laser spot is formed in the illumination area, so that the freckles can be removed by using the laser spot. The camera assembly 14 is disposed inside the housing 11, and is used to obtain a target image of the target color spot and the laser spot in the illumination area. The main control circuit board 15 is disposed inside the housing 11, and a control system is integrated on the main control circuit board 15, and the control system is used to obtain parameter information of the target color spot and the laser spot according to the target image, and control the movement and / or focusing of the laser mechanism according to the parameter information, so that the laser spot is located within the contour range of the target color spot, and moves within the contour range of the target color spot according to the planned path.

[0040] Therefore, with the laser spot removal device of the embodiment of the present invention, it is only necessary to fix the shell 11 on the part of the human body where spot removal is required through the fixing part 12, so that the spot to be removed is in the area corresponding to the laser light outlet 111, that is, the target spot is located in the illuminated area. After the laser spot removal device is powered on, the laser emitted by the laser mechanism 13 is emitted from the laser light outlet 111, and a laser spot is formed in the illuminated area, so that the laser spot can be moved within the contour range of the target spot by using the camera component 14 and the control system to achieve spot removal. In the above manner, it is possible to free both hands from holding the instrument during the spot removal process, and automatic spot removal can be achieved without the assistance of others, which is extremely convenient for users to use and improves user experience.

[0041] In some embodiments of the present invention, the fixing member 12 can be implemented by means of a strap, for example, the fixing member 12 can include two straps and two pull rings 121, 122, the pull ring 121 and the pull ring 122 are arranged on the housing 11 relatively, one end of one strap is fixed on the pull ring 121, one end of the other strap is fixed on the pull ring 122, and the other ends of the two straps can be tied together as free ends, thereby the housing 11 can be bound to the human body part by the two straps. Of course, in other embodiments, only one strap can be provided, one end of the strap is fixed on the pull ring 121, and the other end of the strap is bound to the pull ring 122 after passing around the human body part, thereby the housing 11 and the human body part can be fixed. Among them, the strap can be a belt in various forms, for example, it can be a rope, a Velcro strap, a strap with adjustable length, etc. In addition, the number of the pull ring can also be one, one end of the strap is fixed on the pull ring, and the other end of the strap can be returned to the pull ring after passing around the human body part for a circle.

[0042] Furthermore, the fixing member 12 further includes a chassis adsorption structure, which may be a suction cup, or a sticky soft glue, a silicone rubber, etc. The chassis adsorption structure is arranged at the outer edge area of ​​the laser light outlet 111, for example Figure 1 As shown, at the bottom of the shell 11, the area outside the elliptical dotted circle is provided with a chassis adsorption structure to adsorb and fix the shell 11 on the human body, which can further enhance the firmness of the combination between the shell 11 and the human body.

[0043] In some embodiments of the present invention, the laser mechanism 13 includes a laser emission module 131 and a displacer 132 for driving the laser emission module 131 to move. The laser emission module 131 is a laser instrument with a focusing function, which includes a laser and a focusing device for focusing the laser. The displacer 132 can be a two-dimensional displacer for driving the laser to move in two dimensions, such as moving along the x-axis direction and along the y-axis direction.

[0044] The camera assembly 14 includes a first camera 141 and a second camera 142, which are relatively arranged in the housing 11, and the camera directions are both toward the laser light outlet 111. Optionally, the first camera 141 and the second camera 142 can be, for example, binocular vision spectral cameras, each including multiple cameras, so as to obtain multiple target images of target color spots and laser light spots in real time through multiple cameras. In other embodiments, the first camera 141 and the second camera 142 can also be single-camera cameras, that is, the camera of the camera is one.

[0045] The control system is used to obtain parameter information of the target color spot and the laser spot according to the target image obtained by one of the cameras, for example, by comparing the clarity of the target images obtained by each camera, the target image with the highest clarity is selected to obtain the parameter information. In order to improve the imaging quality of the first camera 141 and the second camera 142, the laser spot removal device 100 may also include lighting lamps 161 and 162, and the two lighting lamps 161 and 162 are respectively arranged in the shell 11 and are respectively correspondingly located below the first camera 141 and the second camera 142, wherein the lighting lamps 161 and 162 may be shadowless uniform lighting lamps. In addition, the lighting lamp may not be arranged, but the shell 11 may be arranged as a transparent shell to facilitate external light to enter the shell, or the fixing member may also be a bracket, such as a tripod support frame or a flexible octopus bracket, etc. By arranging a bracket at the bottom of the shell, the spot removal device is supported on a human body part by the bracket to perform spot removal work, so that the bottom of the shell is suspended, which can avoid the shell blocking the light of the part where the spot removal is required.

[0046] Alternatively, if Figure 2 As shown, the first camera 141 and the second camera 142 each include four cameras, which are a red light camera, a green light camera, a blue light camera and a white light camera, respectively. The white light camera is used to obtain color images, and the red light camera, the green light camera and the blue light camera are used to obtain spectral images. Therefore, two color images and six spectral images can be obtained through the first camera 141 and the second camera 142. The control system can obtain parameter information about the target color spot and the laser spot through any image, and the parameter information includes contour information. Among them, the control system can identify the contours of the target color spot and the laser spot through the color image. For example, the color image obtained by the white light camera of the first camera 141 can be selected to perform contour recognition on the target color spot and the laser spot, so as to obtain contour information. Therefore, the boundaries of the target color spot and the laser spot can be determined through the contour information, and then the contour range of the target color spot and the laser spot can be determined. Alternatively, the control system can also obtain spectral information through the spectral image, so as to identify the contours of the target color spot and the laser spot according to the spectral information to obtain contour information. The control system is specifically used for:

[0047] The area of ​​the target color spot and the coordinate value of a preset reference point within the contour range of the target color spot are obtained according to the contour information of the target color spot; the area of ​​the laser spot and the coordinate value of the center point of the contour range of the laser spot are obtained according to the contour information of the laser spot; according to the difference between the coordinate value of the center point and the coordinate value of the preset reference point, the displacer 132 drives the laser emission module 131 to move so that the center point of the laser spot coincides with the preset reference point; it is determined whether the area of ​​the laser spot is larger than the area of ​​the target color spot, and if so, the focusing device is controlled to focus the laser so that the area of ​​the laser spot is smaller than the area of ​​the target color spot, thereby making the laser spot within the contour range of the target color spot.

[0048] More specifically, the area ranges of the target color spot and the laser spot can be determined through their respective contour information, and then the area of ​​the eye spot and the area of ​​the laser spot, that is, the size, can be obtained accordingly by calculating the area of ​​the area range. Among them, the laser spot is generally a circular spot, and the center point of the laser spot is also the origin of the spot. The preset reference point within the contour range of the target color spot can be any point within the contour range, such as a geometric center point, or other position point, etc., and there is no limitation on this. The coordinate value can be used to determine whether the preset reference point of the eye spot and the center point of the laser spot coincide with each other. If not, the displacement device 132 is controlled to drive the laser to move, and the movement amount can be determined according to the difference between the coordinate values ​​of the preset reference point and the center point of the laser spot. After the center point of the laser spot and the preset reference point of the target color spot coincide with each other, as shown in FIG. Figure 3 As shown, Figure 3 The middle black ellipse indicates the target color spot. If the area of ​​the laser spot is larger than the target color spot, the laser is focused by the focusing device to reduce the size of the laser spot so that the laser spot is within the contour of the target color spot. If the area of ​​the laser spot does not exceed the target color spot, after the center point of the laser spot coincides with the preset reference point of the target color spot, the entire laser spot may be completely within the range of the target color spot, and no focusing operation is required at this time.

[0049] Furthermore, in order to ensure that the entire laser spot is within the contour range of the target color spot, the control system is also used to calculate the shortest distance between the preset reference point and the contour of the target color spot after determining that the area of ​​the laser spot is larger than the area of ​​the target color spot. The shortest distance is the distance between the preset reference point and a position point in the contour of the target color spot that is closest to the preset reference point. The control system compares the radius of the laser spot with the shortest distance. If the radius of the laser spot is less than or equal to the shortest distance, then after the center point of the laser spot and the preset reference point of the target color spot coincide, the entire laser spot is within the contour range of the target color spot. At this time, there is no need to focus the laser. If the radius of the laser spot exceeds the shortest distance, then after the center point of the laser spot and the preset reference point of the target color spot coincide, part of the laser spot may exceed the contour range of the target color spot. At this time, the control system controls the focusing device to focus the laser so that the radius of the laser spot does not exceed the shortest distance, so that the laser spot is within the contour range of the target color spot.

[0050] Among them, Figure 4 As shown, Figure 4 The left picture in the middle shows the target color spot, and the right picture shows the moving path of the laser spot. Each small circle represents the laser spot. The moving path of the laser spot can be planned according to the contour of the target color spot to obtain the planned path. For example, the planned path can be moving clockwise or counterclockwise along the contour of the target color spot, and gradually moving from the outer circle to the inner circle until the laser spot covers the contour range of the entire target color spot, thereby realizing the freckle removal operation on the entire target color spot.

[0051] In the embodiment of the present invention, the first camera 141 and the second camera 142 are arranged in parallel in the housing 11. The control system is also used to calculate the distance from the target color spot to the first camera and the second camera according to the target image obtained by one of the cameras of the first camera 141 and the target image obtained by one of the cameras of the second camera 142, that is, to perform binocular ranging using an image respectively obtained by the first camera 141 and the second camera 142. Among them, the target image selected from each camera can be an image with better quality, such as an image with the highest clarity, or an image with the highest contrast, or an image with both high clarity and contrast. The distance from the target color spot to the first camera 141 and the second camera 142 is obtained by the binocular ranging method, thereby obtaining the stereoscopic dimension information of the target color spot. Afterwards, according to the distance and the two target images used to calculate the distance, a three-dimensional model of the target color spot is established by a binocular vision three-dimensional reconstruction algorithm.

[0052] The control system is also used to determine the attribute information of the target color spot according to the three-dimensional model, the target image obtained by the first camera 141 and the target image obtained by the second camera 142, the attribute information includes the type, color depth and height of the target color spot, and obtain the predetermined laser power according to the attribute information of the target color spot, so that the laser emits the laser at the predetermined laser power. Among them, the corresponding relationship between various attribute information and laser power is preset, wherein the preset height information can be the height range of the color spot or the specific height value; for example, the color spot 1 is preset, the corresponding color is dark brown, the corresponding height range (can also be a specific height value) is a, and the corresponding laser power used is b. Therefore, by obtaining the attribute information of the target color spot and then comparing it with the preset attribute information, the laser power required to remove the target color spot can be determined. Among them, the three-dimensional information of the target color spot can be detected according to the three-dimensional model, such as a concave color spot or a convex color spot, etc., and the height of the target color spot can also be obtained, and the spectral information of the target color spot can be obtained according to the spectral image in the target image, and the color information, shape, etc. of the target color spot can be obtained according to the spectral information. Among them, the type of spots can be determined according to the three-dimensional information, color, shape, etc. of the target spots, such as sunken spots, raised spots, freckles, chloasma, etc. Therefore, the appropriate laser power can be selected for spot removal in the above manner.

[0053] Furthermore, after the laser spot completes the movement of a planned path, the control system also adjusts the predetermined laser power according to the target image acquired in real time by the first camera 141 and the second camera 142, and causes the displacer 132 to drive the laser to move, so that the laser spot moves again within the contour range of the target color spot according to the planned path, until the color depth and height of the target color spot meet the preset requirements. It can be understood that the laser spot completes the movement of a planned path means that the laser spot completes a spot removal operation on the entire target color spot. Among them, the control system specifically adjusts the laser power according to the spectral image acquired in real time, and the spectral information of the target color spot can be obtained according to the spectral image fed back in real time, so as to continuously adjust the laser power according to the spectral information. For example, after completing a spot removal operation, it is determined according to the spectral information that the color of the target color spot becomes lighter. At this time, the laser power can be reduced, and then the laser can be moved again to remove the spots. While effectively removing the spots, healthy subcutaneous tissue can be protected to prevent the problem of too deep spots and difficulty in restoring the skin to a smooth surface.

[0054] Among them, the preset requirements may be, for example, that the color depth is skin color and the height range is c. After the target color spot is removed, the color information and height information of the target color spot are obtained to determine whether it is skin color and whether the height is within the range of c. If so, it meets the preset requirements. At this time, the freckle removal operation can be stopped and the freckle removal device can be turned off.

[0055] In other embodiments of the present invention, the number of times the spots are removed can be determined based on the attribute information of the target spots, that is, the spots can be removed in stages. For example, if the height of the target spots is high, the spots can be removed in multiple times, and each time the spots are removed, part of their height is removed. The height removed each time can be the same or different.

[0056] In some other embodiments of the present invention, Figure 5 As shown, the laser freckle removal device also includes a communication module, and the control system is connected to the external terminal device through the communication module. The communication module may include a Bluetooth communication module 171 and a data line interface 172. The control system is also used to quantify the freckle removal effect and send the freckle removal effect to the external terminal device through the communication module. After completing each freckle removal, the control system can quantify the freckle removal effect according to the spectral image fed back in real time by the cameras 141 and 142. For example, the color depth change, area size change, etc. can be obtained according to the spectral image, and the quantitative results can be obtained by comparing the color depth change, area size change, etc. before and after the freckle removal, such as the color after the freckle removal is 30% lighter than before the freckle removal, and the area is reduced by 5%, etc., or the color spot height after the freckle removal can be obtained according to the three-dimensional model, so as to quantify the freckle removal effect according to the height change of the target color spot before and after the freckle removal, such as the height after the freckle removal is reduced by 80%, etc., so that the user can understand the freckle removal effect through the external terminal device.

[0057] Among them, the external terminal device can be a mobile phone, a tablet or a portable display (such as a display device such as a liquid crystal display, a light-emitting diode display, etc.). Further, in an embodiment of the present invention, the laser spot removal device 100 can also include a human-machine interaction interface, which can be implemented in the form of an application and can be installed on a terminal device such as a mobile phone or a tablet. The human-machine interaction interface is connected to the control system through a communication module, such as being connected through a Bluetooth communication module 171 or through a data line interface 172. The control system can obtain the spot removal picture in real time through the first camera 141 and the second camera 142 and send it to the terminal device. The user can view the spot removal picture through the application of the human-machine interaction interface. The user can also control the working state of the laser through the human-machine interaction interface, for example, manually control the displacement device 132 to move or manually adjust the focus by viewing the three-dimensional model. More specifically, the user can input various control instructions in the human-machine interaction interface, and the control system receives and responds to these control instructions. These control instructions can be used to control the start and stop, movement, spot focusing or laser power adjustment of the laser.

[0058] The laser spot removal device of the present invention comprises a shell, a fixing part, a laser mechanism, a camera assembly and a main control circuit board, wherein the shell is provided with a laser light outlet, the fixing part is provided outside the shell and is used to fix the shell on a human body part, the laser light outlet of the shell is directed toward the human body part, thereby defining an illumination area on the human body part; the laser mechanism is provided inside the shell, the generated laser is emitted from the laser light outlet to the illumination area, and a laser spot is formed in the illumination area; the camera assembly is provided inside the shell and is used to obtain a target image of a target color spot and a laser spot in the illumination area; the main control circuit board is provided inside the shell, Inside the shell, a control system is integrated on the main control circuit board. The control system is used to obtain parameter information of the target color spot and the laser spot according to the target image, and control the movement and / or focusing of the laser mechanism according to the parameter information, so that the laser spot is located within the contour range of the target color spot and moves within the contour range of the target color spot according to the planned path. Therefore, the freckle removal device can be fixed on a part of the human body through the action of the fixing part. There is no need to hold the instrument all the time during the freckle removal process, and both hands can be freed. Moreover, automatic freckle removal can be achieved through the control system without the assistance of others, which is extremely convenient for users to use and improves the user experience.

[0059] Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A laser freckle removal device, characterized in that: include: The housing is provided with a laser light outlet; A fixing member is arranged outside the housing and is used to fix the housing on a part of the human body, and the laser light outlet of the housing faces the part of the human body, thereby defining an irradiated area on the part of the human body; A laser mechanism is disposed inside the housing, and the generated laser is emitted from the laser light outlet to the illumination area, and forms a laser spot in the illumination area; A camera assembly is disposed inside the housing and is used to obtain a target image of a target color spot and a laser spot in the illumination area; A main control circuit board is arranged inside the shell, and a control system is integrated on the main control circuit board. The control system is used to obtain parameter information of the target color spot and the laser spot according to the target image, and control the movement and / or focusing of the laser mechanism according to the parameter information, so that the laser spot is located within the contour range of the target color spot and moves within the contour range of the target color spot according to the planned path.

2. The laser freckle removal device according to claim 1, characterized in that: The fixing member comprises a binding strap and a pull ring, the pull ring is on the shell, the binding strap is fixed to the pull ring, and the shell is bound to a part of the human body through the binding strap.

3. The laser freckle removal device according to claim 1, characterized in that: The fixing member comprises a chassis adsorption structure, and the chassis adsorption structure is arranged at the outer edge area of ​​the laser light outlet, and is used for adsorbing the shell on a part of the human body.

4. The laser freckle removal device according to claim 1, characterized in that: The laser mechanism comprises a laser emission module and a displacer for driving the laser emission module to move, and the laser emission module comprises a laser and a focusing device for focusing the laser; The parameter information includes profile information, and the control system is specifically used for: Acquire the area of ​​the target color spot and the coordinate value of a preset reference point within the contour range of the target color spot according to the contour information of the target color spot; Acquire the area of ​​the laser spot and the coordinate value of the center point of the laser spot contour range according to the contour information of the laser spot; According to the difference between the coordinate value of the center point and the coordinate value of the preset reference point, the displacer drives the laser emission module to move so that the center point of the laser spot coincides with the preset reference point; It is determined whether the area of ​​the laser spot is larger than the area of ​​the target color spot. If so, the focusing device is controlled to focus the laser so that the area of ​​the laser spot is smaller than the area of ​​the target color spot, thereby making the laser spot within the contour range of the target color spot.

5. The laser freckle removal device according to claim 4, characterized in that: The control system is also used to calculate the shortest distance between the preset reference point and the outline of the target color spot after determining that the area of ​​the laser spot is larger than the area of ​​the target color spot; The control system is used to control the focusing device to focus the laser so that the radius of the laser spot does not exceed the shortest distance, thereby making the laser spot located within the contour range of the target color spot.

6. The laser freckle removal device according to claim 4, characterized in that: The camera assembly comprises a first camera and a second camera, wherein the first camera and the second camera are arranged opposite to each other in the housing, and the camera directions are both toward the laser light outlet; The first camera and the second camera each include multiple cameras, so as to obtain multiple target images of the target color spot and the laser spot in real time through the multiple cameras; the control system is used to obtain parameter information of the target color spot and the laser spot according to the target image obtained by at least one camera.

7. The laser freckle removal device according to claim 6, characterized in that: The first camera and the second camera each have four cameras, and the four cameras are respectively a white light camera, a red light camera, a green light camera and a blue light camera; The control system is also used to calculate the distances of the target color spot from the first camera and the second camera according to the target image acquired by one of the first cameras and the target image acquired by one of the second cameras, and to establish a three-dimensional model of the target color spot by a binocular vision three-dimensional reconstruction algorithm according to the distance and the target image; The control system is also used to determine attribute information of the target color spot based on the three-dimensional model, the target image acquired by the first camera and the target image acquired by the second camera, the attribute information including the type, color depth and height of the target color spot, and obtain a predetermined laser power based on the attribute information of the target color spot, so that the laser emits laser at the predetermined laser power.

8. The laser spot removal device according to claim 7, characterized in that: After the laser spot completes one movement of the planned path, the control system also adjusts the predetermined laser power according to the target image acquired in real time by the first camera and the second camera, and causes the displacer to drive the laser to move, so that the laser spot moves again within the contour of the target color spot according to the planned path until the color depth and height of the target color spot meet the preset requirements.

9. The laser freckle removal device according to claim 8, characterized in that: It also includes a communication module, through which the control system is connected to an external terminal device for communication; The control system is also used to quantify the freckle removal effect, and send the quantified freckle removal effect to an external terminal device through the communication module.

10. The laser freckle removal device according to claim 1, characterized in that: It also includes a human-computer interaction interface, which is integrated on an external terminal device. The control system is connected to the external terminal device through a communication module. The human-computer interaction interface is used to receive user control instructions. The control system is also used to control the movement and / or focusing of the laser mechanism according to the control instructions.

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