A beauty laser head detection platform

Abstract

The present invention discloses a beauty laser head detection station, comprising a laser head mounting assembly, a light guide assembly, two or more photodiode groups and an output device; wherein the laser line generated by the beauty laser head is divided by the light guide assembly into two or more parallel laser lines with uniformly distributed wavelengths; each parallel laser line is irradiated on each photodiode of the same photodiode group, so that each photodiode generates a weak electrical signal; since the response wavelengths of each photodiode group are different, the wavelength of the laser line generated by the beauty laser head can be determined according to the average value of the electrical signals generated when each photodiode group is irradiated. Therefore, the present invention does not need to use professional and expensive equipment such as a spectrometer, and the beauty laser head detection station can be used to determine whether the laser wavelength of the beauty laser head is within a preset range.

Description

Technical Field

[0001] The present application relates to the field of experimental equipment, and in particular to a beauty laser head detection platform for laboratory testing of the wavelength of laser light generated by a beauty laser head. Background Art

[0002] Laser beauty is a method of skin beauty and treatment using laser technology. It uses the light beam generated by the laser to precisely treat the skin to improve skin problems and achieve beauty effects. Different types of laser heads can produce laser beams of different wavelengths, and the beauty mechanisms of laser beams of different wavelengths in skin tissue are also different. Taking color correction beauty as an example, it uses the specific wavelength of the laser to interact with the pigment in the skin. For example, for pigmentary diseases (such as pigment spots, red blood streaks, etc.), the specific wavelength of the laser can selectively absorb and destroy the pigment particles, thereby reducing or eliminating pigment deposition on the skin.

[0003] Therefore, the wavelength of the laser generated by the laser head directly affects its beauty effect. If the light in a specific wavelength range of the laser generated by the laser head is less than a certain proportion or energy density, the beauty effect is very limited. Therefore, it is very important to quickly and accurately detect the wavelength of the laser generated by the beauty laser head. In the prior art, the wavelength distribution of the laser is mainly detected by a spectrometer, but this method is complicated to operate and has high equipment cost, which is not conducive to popularization and application. Summary of the invention

[0004] In view of the above problems, the present application provides a beauty laser head detection station for quickly and accurately detecting the wavelength of the laser generated by the beauty laser head.

[0005] To achieve the above-mentioned purpose, the present application provides a beauty laser head detection platform, including: a laser head mounting assembly, a mounting bracket and a driving power supply, wherein the mounting bracket is used to mount the beauty laser head; the driving power supply is used to provide driving current for the beauty laser head;

[0006] A light guide assembly, comprising an optical fiber and a holographic grating; one end of the optical fiber is connected to the emission end of the beauty laser head, and the other end is opposite to the incident end of the holographic grating; the holographic grating is provided with a series of equally spaced fine grooves or fine stripes on the surface of the lens, which is used to evenly divide the incident laser into two or more parallel laser lines, and evenly distribute the light of each wavelength in each parallel laser line;

[0007] A detection assembly, including two or more photodiode groups, a detection moving belt, a detection darkroom and a signal reading device;

[0008] Each group of the photodiode groups includes a number of photodiodes equal to the number of the parallel laser lines, and the response wavelengths of the photodiodes in the same photodiode group are the same, and the response wavelengths of each group of photodiode groups are different; the photodiodes are connected to a diode driving circuit, and the diode driving circuit is used to drive the photodiodes to light up;

[0009] A plurality of detection positions are arranged at intervals on the detection moving belt, and a group of photodiodes is installed corresponding to each detection position, and the spacing between the photodiodes at the detection position is equal to the spacing between the parallel laser lines; the detection moving belt moves intermittently, driving each group of photodiodes to enter the detection darkroom in turn; in the detection darkroom, each parallel laser is irradiated on the corresponding photodiodes in the same photodiode group, so that each photodiode generates a weak electrical signal;

[0010] The signal reading device is electrically connected to each group of the photodiodes, respectively, and is used to read each of the electrical signals generated by each group of photodiodes in response to the irradiation of the parallel laser line, and calculate the average value of all the electrical signals in each group;

[0011] The output device is connected to the signal reading device, and is used to compare the average values ​​of each group of photodiode groups, and output the wavelength range of the laser generated by the beauty laser head according to the comparison result to determine whether the wavelength range of the laser is within a preset wavelength range.

[0012] Furthermore, a plurality of mutually parallel shading partitions are arranged in front of the detection darkroom, and the shading partitions are arranged between two adjacent parallel laser lines; and a laser incident window is opened at the front end of the detection darkroom.

[0013] Furthermore, the driving power supply includes a first voltage regulating module for adjusting the magnitude of the driving current; the diode driving circuit includes a second voltage regulating module for adjusting the operating current of each of the photodiodes in each group;

[0014] The beauty laser head detection station is used to drive the beauty laser head with different driving currents and light up the photodiodes of each group with different working currents.

[0015] Further, the signal reading device includes an amplifier, a filter and a connection interface;

[0016] The amplifier is used to amplify the electrical signal generated by the photodiode, the filter is used to filter out noise and interference signals; and the connection interface is used to connect the output device.

[0017] Furthermore, it comprises more than five groups of photodiodes, and the response wavelengths of two adjacent groups of photodiodes are increased in equal value.

[0018] Furthermore, a metal shielding layer is provided on the periphery of the detection darkroom, and the metal shielding layer of each detection darkroom is grounded through a wire.

[0019] Furthermore, the mounting bracket includes a clamping claw, and the clamping claw is used to clamp the beauty laser head.

[0020] Furthermore, the detection moving belt is an endless belt, the detection positions are arranged at intervals on the detection moving belt, and each detection position is provided with a positioning marker, and a positioning sensor is provided in the detection darkroom. The positioning sensor can identify the positioning marker for positioning, so that each of the parallel lasers is respectively aligned with the corresponding photodiodes in the same photodiode group.

[0021] Different from the prior art, the above-mentioned technical solution of the beauty laser head detection station includes a laser head installation component, a light guide component, two or more photodiode groups and an output device; wherein the laser line generated by the beauty laser head is divided into two or more parallel laser lines with uniformly distributed wavelengths by the light guide component; each parallel laser line is irradiated on each photodiode of the same photodiode group, so that each photodiode generates a weak electrical signal; since the response wavelength of each photodiode group is different, the wavelength of the laser line generated by the beauty laser head can be determined according to the average value of the electrical signal generated when each photodiode group is irradiated. Therefore, the present invention does not need to use professional and expensive equipment such as a spectrometer, and the beauty laser head detection station can be used to determine whether the laser wavelength of the beauty laser head is within a preset range.

[0022] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0024] In the drawings of the specification:

[0025] Figure 1 It is a module block diagram of the beauty laser head detection station described in the specific implementation method;

[0026] Figure 2This is a schematic diagram of the structure of the beauty laser head detection station described in the specific implementation method;

[0027] Figure 3 is a structural schematic diagram of a photodiode group described in a specific implementation manner;

[0028] Figure 4 for Figure 1 A partial enlarged view of part A;

[0029] The reference numerals in the above drawings are described as follows:

[0030] 10. Laser head mounting assembly; 20. Light guide assembly; 30. Detection assembly; 40. Output device;

[0031] 1. Beauty laser head; 11. Laser; 12. Mounting bracket; 13. Parallel laser line;

[0032] 2. Optical fiber;

[0033] 3. Holographic grating;

[0034] 4. Shading partition;

[0035] 5. Detection of moving belt; 51. Detection of position;

[0036] 6. Photodiode group; 61. Photodiode; 62. Positioning marker;

[0037] 7. Detection darkroom;

[0038] 8. Signal reading equipment;

[0039] 9. Display; DETAILED DESCRIPTION

[0040] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0041] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0042] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0043] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0044] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0045] Without further limitations, in this application, the words "include", "comprises", "has" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0046] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0047] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0048] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] See also Figures 1 to 4 In this embodiment, the beauty laser head detection station includes: a laser head mounting component 10, a light guide component 20, a detection component 30 and an output device 40.

[0050] like Figure 2 As shown, the laser head mounting assembly 10 includes a mounting bracket 12 and a driving power supply, wherein the mounting bracket 12 is used to mount the beauty laser head 1; and the driving power supply is used to provide driving current for the beauty laser head 1. In order to install and replace different beauty laser heads, the mounting bracket 12 includes a clamping claw, and the clamping claw is used to clamp the beauty laser head 1.

[0051] The light guide assembly 20 includes an optical fiber 2 and a holographic grating 3; one end of the optical fiber 2 is connected to the emission end of the beauty laser head 1, and the other end is opposite to the incident end of the holographic grating 3; the holographic grating 3 is provided with a series of equally spaced fine grooves or fine stripes on the surface of the lens, which are used to evenly divide the incident laser 11 into more than two parallel laser lines 13, and make the light of each wavelength in each parallel laser line 13 evenly distributed.

[0052] like Figure 2 and Figure 3 As shown, the detection component 30 includes more than two groups of photodiode groups 6, a detection moving belt 5, a detection darkroom 7 and a signal reading device 8. Each group of the photodiode groups 6 includes a number of photodiodes 61 equal to the number of the parallel laser lines 13, and the response wavelengths of the photodiodes 61 in the same photodiode group 6 are the same, and the response wavelengths of each group of photodiode groups 6 are different. For example, taking laser freckle removal and skin pigmentation abnormalities as examples, the laser wavelengths are usually 532 nanometers and 1064 nanometers. 532 nanometer lasers are mainly used to treat superficial pigmentation problems, such as freckles and sun spots, while 1064 nanometer lasers are suitable for deeper pigmentation problems, such as melasma and black brown spots.

[0053] The response wavelength of each photodiode in the first photodiode group is 400 nanometers, the response wavelength of each photodiode in the second photodiode group is 600 nanometers; the response wavelength of each photodiode in the third photodiode group is 800 nanometers; the response wavelength of each photodiode in the fourth photodiode group is 1000 nanometers; the response wavelength of each photodiode in the fifth photodiode group is 1200 nanometers. The photodiode 61 is connected to a diode driving circuit, and the diode driving circuit is used to drive the photodiode 61 to light up.

[0054] like Figure 2 and Figure 4 As shown, the detection moving belt 5 is provided with a plurality of detection positions 51 at intervals, and each detection position 51 is correspondingly provided with a group of photodiode groups 6, and the spacing between the photodiodes 61 at the detection position 51 is equal to the spacing between the parallel laser lines 13. Schematically, the detection moving belt 5 is 1 meter long, and 5 detection positions 51 are provided thereon, and a detection position is provided every 20 cm, and the spacing between two adjacent photodiodes 61 at the same detection position is 1 cm. The detection moving belt 5 moves intermittently, driving each group of photodiode groups 6 to enter the detection darkroom 7 in sequence. The detection moving belt 5 can be made of a rubber belt, and the inner side of the detection moving belt 5 is provided with concave and convex tooth grooves, and a plurality of rollers adapted to the tooth grooves are provided, and the rollers can tension the detection moving belt 5, and at least one roller is provided with a driving motor, and the driving motor drives the roller to rotate, so that the detection moving belt 5 is driven by the roller to move.

[0055] In order to ensure that the parallel laser line 13 can be aligned with the corresponding photodiode 61 during detection, as shown in FIG. Figure 3 and Figure 4 As shown, each detection position 51 is provided with a positioning marker 62, and a positioning sensor is provided in the detection darkroom 7. The positioning sensor can identify the positioning marker 62 for positioning, so that each of the parallel lasers 11 is respectively aligned with the corresponding photodiodes 61 in the same photodiode group 6.

[0056] In this embodiment, the detection moving belt 5 moves intermittently in the same direction. Taking the above example for illustration, the detection moving belt 5 moves 20 cm each time, so that each movement moves the distance of one detection position.

[0057] like Figure 2 and Figure 4As shown, in the detection darkroom 7, each parallel laser 11 is irradiated on each corresponding photodiode 61 in the same photodiode group 6, so that each photodiode 61 generates a weak electrical signal. The signal reading device 8 is electrically connected to each group of photodiodes 61, and is used to read each electrical signal generated by each photodiode group 6 in response to the irradiation of the parallel laser line 13, and calculate the average value of all the electrical signals in each group.

[0058] The output device 40 is connected to the signal reading device 8, and is used to compare the average values ​​of each group of photodiode groups 6, and output the wavelength range of the laser light 11 generated by the beauty laser head 1 according to the comparison result, so as to determine whether the wavelength range of the laser light 11 is within the preset wavelength range. The output device 40 includes a display 9, which can display which photodiode group has the highest average value of the electrical signal and the wavelength range corresponding to the photodiode group.

[0059] In this embodiment, the signal reading device 8 includes an amplifier, a filter and a connection interface; the amplifier is used to amplify the electrical signal generated by the photodiode 61, and the filter is used to filter out noise and interference signals; the connection interface is used to connect the output device 40. The laser line generated by the beauty laser head 1 is divided into two or more parallel laser lines 13 with uniform wavelength distribution by the light guide component; each parallel laser line 13 is irradiated on each photodiode 61 of the same photodiode group, so that each photodiode 61 generates a weak electrical signal; since the response wavelength of each group of photodiode groups 6 is different, the wavelength of the laser line generated by the beauty laser head 1 can be determined according to the average value of the electrical signal generated by each group of photodiode groups 6 when irradiated. Therefore, the present invention does not need to use professional and expensive equipment such as a spectrometer, and the beauty laser head detection station can be used to determine whether the laser wavelength of the beauty laser head is within a preset range.

[0060] like Figure 2 and Figure 4 As shown, in this embodiment, a plurality of mutually parallel shading partitions 4 are arranged in front of the detection darkroom 7, and the shading partitions 4 are arranged between two adjacent parallel laser lines 13; and a laser incident window is opened at the front end of the detection darkroom 7. The parallel laser lines 13 are incident into the detection darkroom 7 through the laser incident window. The shading partitions 4 can be made of non-metallic materials that are opaque. The shading partitions 4 can isolate the parallel laser lines 13, avoid detection interference of adjacent photodiodes 61, and improve detection accuracy.

[0061] In some embodiments, the driving power supply includes a first voltage regulating module for adjusting the magnitude of the driving current; the diode driving circuit includes a second voltage regulating module for adjusting the operating current of each of the photodiodes 61 in each group.

[0062] The beauty laser head detection station is used to drive the beauty laser head 1 with different driving currents, and light up the photodiodes 61 of each group with different working currents.

[0063] In this embodiment, during the detection process, the working current of the beauty laser head can be adjusted by the first voltage regulating module, so that the wavelength of the laser generated under different working currents can be obtained. In addition, in this embodiment, the photodiode 61 needs a smaller current to start when in use, and then detects the voltage change under the irradiation of the parallel laser line. Therefore, in this embodiment, the voltage change obtained under the irradiation of the parallel laser line can be detected under the condition of starting current of different magnitudes, thereby improving the accuracy of the wavelength detection of the beauty laser head.

[0064] A first connection contact point of a signal reading device and a second connection contact point of a diode driving circuit are arranged in the detection darkroom, and the first connection contact point and the second connection contact point are both fixedly arranged;

[0065] A first connection contact head corresponding to the first connection contact point and a second connection contact head corresponding to the second connection contact point are provided at each detection position of the detection moving belt, and the first connection contact head and the second connection contact head are conductively connected to each photodiode in the photodiode group; when the detection moving belt moves, the first connection contact head and the second connection contact head move synchronously with the detection position. When the positioning mark 62 is identified by the positioning sensor, the parallel laser 11 is respectively aimed at each photodiode 61, and the first connection contact point is connected to the first connection contact head, and the second connection contact point is connected to the second connection contact head, so that each photodiode 61 is driven by the diode driving circuit, and the change of the electrical signal of each photodiode 61 after being irradiated by the parallel laser 11 can be read by the signal reading device.

[0066] In some embodiments, more than five groups of photodiodes 61 are included, and the response wavelengths of two adjacent groups of photodiodes 61 are increased in equal values.

[0067] In some embodiments, in order to avoid electromagnetic interference from the environment, a metal shielding layer is provided on the periphery of the detection darkroom 7, and the metal shielding layer of each detection darkroom 7 is grounded through a wire.

[0068] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A beauty laser head detection station, characterized in that: include: Laser head mounting assembly, mounting bracket and driving power supply, wherein the mounting bracket is used to mount the beauty laser head; The driving power supply is used to provide driving current for the beauty laser head; A light guide assembly, comprising an optical fiber and a holographic grating; one end of the optical fiber is connected to the emission end of the beauty laser head, and the other end is opposite to the incident end of the holographic grating; the holographic grating is provided with a series of equally spaced fine grooves or fine stripes on the surface of the lens, which is used to evenly divide the incident laser into two or more parallel laser lines, and evenly distribute the light of each wavelength in each parallel laser line; A detection assembly, including two or more photodiode groups, a detection moving belt, a detection darkroom and a signal reading device; Each group of the photodiodes includes a number of photodiodes equal to the number of the parallel laser lines, and the response wavelengths of the photodiodes in the same photodiode group are the same, and the response wavelengths of each photodiode group are different; the photodiodes are connected to a diode driving circuit, and the diode driving circuit is used to drive the photodiodes to light up; including more than five groups of the photodiodes, the response wavelengths of two adjacent photodiode groups are equal and increase in increments; A plurality of detection positions are arranged at intervals on the detection moving belt, and a group of photodiodes is installed corresponding to each detection position, and the spacing between the photodiodes at the detection position is equal to the spacing between the parallel laser lines; the detection moving belt moves intermittently, driving each group of photodiodes to enter the detection darkroom in turn; in the detection darkroom, each parallel laser line is irradiated on the corresponding photodiodes in the same photodiode group, so that each photodiode generates a weak electrical signal; The signal reading device is electrically connected to each group of the photodiodes, respectively, and is used to read each of the electrical signals generated by each group of photodiodes in response to the irradiation of the parallel laser line, and calculate the average value of all the electrical signals in each group; An output device, connected to the signal reading device, for comparing the average values ​​of the photodiode groups, and outputting the wavelength range of the laser light generated by the beauty laser head according to the comparison result, so as to determine whether the wavelength range of the laser light is within a preset wavelength range; The detection moving belt is an endless belt, the detection positions are arranged at intervals on the detection moving belt, and each detection position is provided with a positioning marker, and a positioning sensor is provided in the detection darkroom, and the positioning sensor can identify the positioning marker for positioning; The inner side of the detection moving belt is provided with concave and convex tooth grooves, and a plurality of rollers adapted to the tooth grooves are provided, the rollers can tension the detection moving belt, and at least one roller is provided with a driving motor, the driving motor drives the roller to rotate, so that the detection moving belt is driven to move by the roller; A first connection contact point of a signal reading device and a second connection contact point of a diode driving circuit are arranged in the detection darkroom, and the first connection contact point and the second connection contact point are both fixedly arranged; a first connection contact head corresponding to the first connection contact point and a second connection contact head corresponding to the second connection contact point are arranged at each detection position of the detection moving belt, and the first connection contact head and the second connection contact head are conductively connected to each photodiode in the photodiode group; when the detection moving belt moves, the first connection contact head and the second connection contact head move synchronously with the detection position; when the positioning mark is identified by the positioning sensor, the parallel laser lines are respectively aligned with each photodiode, and the first connection contact point is connected to the first connection contact head, and the second connection contact point is connected to the second connection contact head, so that each photodiode is driven by the diode driving circuit.

2. The beauty laser head detection platform according to claim 1, characterized in that: A plurality of mutually parallel shading partitions are arranged in front of the detection darkroom, and the shading partitions are arranged between two adjacent parallel laser lines; and a laser incident window is opened at the front end of the detection darkroom.

3. The beauty laser head detection platform according to claim 1 or 2, characterized in that: The driving power supply includes a first voltage regulating module for adjusting the magnitude of the driving current; the diode driving circuit includes a second voltage regulating module for adjusting the operating current of each photodiode in each group; The beauty laser head detection station is used to drive the beauty laser head with different driving currents and light up the photodiodes of each group with different working currents.

4. The beauty laser head detection platform according to claim 1 or 2, characterized in that: The signal reading device includes an amplifier, a filter and a connection interface; The amplifier is used to amplify the electrical signal generated by the photodiode, the filter is used to filter out noise and interference signals; and the connection interface is used to connect the output device.

5. The beauty laser head detection platform according to claim 1, characterized in that: A metal shielding layer is arranged on the periphery of the detection darkroom, and the metal shielding layer of each detection darkroom is grounded through a wire.

6. The beauty laser head detection platform according to claim 1, characterized in that: The mounting bracket comprises a clamping claw, and the clamping claw is used for clamping the beauty laser head.

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