Control Method of Pulsed Light Device and Related Device

Abstract

The present application discloses a control method for a pulsed light device and related devices. The pulsed light device includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to cause the light source to flash. The control method includes: controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor. In the embodiments of the present application, the user experience can be improved.

Description

Technical Field

[0001] This application relates to the field of pulsed light technology, and particularly to a control method for a pulsed light device and related devices. Background Art

[0002] In the fields of beauty and personal care, pulsed light devices have been widely used. In order to generate pulsed light with sufficient intensity in a short time, a capacitor can be used to supply power to the pulsed light device, and all the energy stored in the capacitor is converted into a strong pulsed light through a single discharge process. However, the high energy generated by a single discharge not only increases the discomfort of users, such as adverse reactions like pain, but also affects the lifespan of sensitive components in the device and reduces the durability of the device. Summary of the Invention

[0003] Embodiments of this application provide a control method for a pulsed light device and related devices, which can control the light source to flash in batches, disperse the energy output, improve the user experience, and extend the service life of the device.

[0004] In a first aspect, embodiments of this application disclose a control method for a pulsed light device. The pulsed light device includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to cause the light source to flash. The control method includes: controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor.

[0005] In a second aspect, embodiments of this application disclose a control device for a pulsed light device. The pulsed light device includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to cause the light source to flash. The control device includes: a control module, configured to control the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; the control module is further configured to, within the interval time between two adjacent flashes, control the charging module to charge the capacitor.

[0006] In a third aspect, embodiments of this application disclose a pulsed light device, including a controller, a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to cause the light source to flash. The controller is configured to: control the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor.

[0007] Fourth aspect, an embodiment of the present application discloses a pulsed light device, including a processor and a memory. The processor calls a computer program stored in the memory to implement the method disclosed in the first aspect above.

[0008] Fifth aspect, an embodiment of the present application discloses a computer-readable storage medium, on which a computer program or computer instructions are stored. When the computer program or computer instructions are run by a processor, the method disclosed in the first aspect above is implemented.

[0009] Sixth aspect, an embodiment of the present application discloses a computer program product, which includes computer program code. When the computer program code is run by a processor, the above method is executed.

[0010] An embodiment of the present application provides a control method for a pulsed light device. The pulsed light device includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to make the light source flash. The control method of the pulsed light device includes: controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor. It can be seen that compared with releasing the electrical energy in the capacitor at one time, in the present application, by controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3, the pulsed light device releases the energy in the capacitor through at least three flashes, divides the single discharge process of the capacitor into multiple charge-discharge processes, and controls the energy of each discharge in a segmented manner, avoiding the high-energy impact caused by single discharge. The pulsed light device can disperse the energy output without sacrificing the required intensity of the pulsed light, and process the skin in a gentler and more controllable manner. This can not only reduce the pain and other discomforts of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. And immediately charging the capacitor after each discharge can improve the energy released by the pulsed light device within the flash window, thereby improving the effect on the skin. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0012] Figure 1 It is a schematic structural diagram of a pulsed light device disclosed in an embodiment of the present application;

[0013] Figure 2 It is a schematic flow chart of a control method for a pulsed light device disclosed in an embodiment of the present application;

[0014] Figure 3 It is a schematic structural diagram of another pulsed light device disclosed in an embodiment of the present application;

[0015] Figure 4 It is a schematic structural diagram of a charging module disclosed in an embodiment of the present application;

[0016] Figure 5 It is a schematic structural diagram of another charging module disclosed in an embodiment of the present application;

[0017] Figure 6 It is a schematic structural diagram of yet another charging module disclosed in an embodiment of the present application;

[0018] Figure 7 It is a schematic structural diagram of a power input circuit disclosed in an embodiment of the present application;

[0019] Figure 8 It is a schematic structural diagram of a voltage acquisition circuit disclosed in an embodiment of the present application;

[0020] Figure 9 It is a schematic structural diagram of a power conversion circuit disclosed in an embodiment of the present application;

[0021] Figure 10 It is a schematic structural diagram of a voltage stabilizing circuit disclosed in an embodiment of the present application;

[0022] Figure 11 It is a schematic structural diagram of yet another pulsed light device disclosed in an embodiment of the present application;

[0023] Figure 12 It is a schematic structural diagram of a voltage conversion circuit disclosed in an embodiment of the present application;

[0024] Figure 13 It is a schematic structural diagram of yet another pulsed light device disclosed in an embodiment of the present application;

[0025] Figure 14 It is a schematic structural diagram of a driving circuit disclosed in an embodiment of the present application;

[0026] Figure 15 It is a schematic structural diagram of yet another charging module disclosed in an embodiment of the present application

[0027] Figure 16 It is a schematic structural diagram of yet another pulsed light device disclosed in an embodiment of the present application

[0028] Figure 17 It is a schematic structural diagram of yet another pulsed light device disclosed in an embodiment of the present application;

[0029] Figure 18 It is a schematic structural diagram of another pulsed light device disclosed in an embodiment of the present application. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0031] The embodiments of the present application disclose a control method for a pulsed light device and related devices, which can control the light source to flash in batches, disperse the output of energy, improve the user experience and extend the service life of the device. The following will be described in detail respectively.

[0032] In order to better understand the embodiments of the present application, the related technologies will be described below.

[0033] Pulsed light technology has been widely used in the fields of beauty and medicine. The pulsed light device can emit pulsed light of a specific wavelength to process the skin to achieve various effects such as removing spots and hair removal.

[0034] Current pulsed light devices usually use a one-time discharge method to generate the required intense pulsed light. Although this method can provide high-intensity pulsed light in a short time, the one-time high-intensity discharge will reduce the user experience. Secondly, it will also cause pressure on the sensitive components inside the device, thereby affecting the stability and service life of the device.

[0035] To solve the above technical problems, in the embodiments of the present application, a pulsed light device includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source to cause the light source to flash. The control method of the pulsed light device includes: controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor. It can be seen that compared with releasing the electric energy in the capacitor at one time, in the present application, by controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3, the pulsed light device releases the energy in the capacitor through at least three flashes, divides the single discharge process of the capacitor into multiple charge-discharge processes, and controls the energy of each discharge in a segmented manner, avoiding the high-energy impact caused by single discharge, enabling the pulsed light device to disperse the energy output without sacrificing the required intensity of the pulsed light, and treating the skin in a more gentle and controllable manner. This can not only reduce the pain and other discomforts of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. And immediately charging the capacitor after each discharge can improve the energy released by the pulsed light device within this flash window, thereby improving the effect on the skin.

[0036] To better understand the embodiments of the present application, the network structure of the embodiments of the present application will be described below.

[0037] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a pulsed light device disclosed in the embodiments of the present application. As Figure 1 shown, the pulsed light device may include a charging module 10, a capacitor 20, and a light source 30. The capacitor 20 is connected between the charging module 10 and the light source 30.

[0038] In the present application, the pulsed light device can be selected as a hair removal device, a skin rejuvenation device, etc. The following mainly takes a hair removal device as an example for illustration.

[0039] In the present application, the control method can be applied to the controller of the pulsed light device. The pulsed light device may further include a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module can charge the capacitor, and the capacitor can supply power to the light source 20 to cause the light source to flash. The control method of the pulsed light device may include the following steps.

[0040] 201. Control the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, control the capacitor to discharge to the light source.

[0041] And within the interval time between two adjacent flashes, control the charging module to charge the capacitor.

[0042] Specifically, the light source can flash multiple times with multiple operations by the operator. To distinguish from this situation, it can be said that the control light source flashes N times within a flash window.

[0043] The pulsed light device can control the light source to flash N times within a flash window through a preset control logic, achieving precise control of the number of flashes of the light source (i.e., N times) to meet different user requirements.

[0044] Among them, each time the light source flashes, it can output specific energy to achieve the treatment of the skin. Specifically, by controlling the number of flashes (N) of the light source within each flash window, the total energy released within the flash window can be adjusted. Each flash of the light source releases a certain amount of energy to the skin. The number of flashes within a flash window determines the total energy released to the skin. And by releasing energy to the skin at least 3 times within a flash window, the energy can be released to the skin in a way of energy superposition and accumulation, avoiding excessive single - time energy, so that the skin can be treated in a more gentle and controllable way. This can not only reduce the pain and other discomforts of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device.

[0045] Each flash of the light source requires a certain amount of energy. The electrical energy stored in the capacitor can be converted into light energy by controlling the discharge of the capacitor to the light source, providing the necessary energy for the light source to flash, that is, the energy in the capacitor is output in the form of pulsed light through the light source of the pulsed light device.

[0046] This application can achieve one flash by controlling one discharge process of the capacitor to the light source, so that the light source flashes each time the capacitor discharges. The flash duration of the light source can be controlled by precisely controlling the discharge duration of the capacitor to the light source, so that the capacitor only releases enough electrical energy to generate the required light intensity and duration, rather than completely depleting the electrical energy in the capacitor. This method can not only save energy, but also ensure that the light source can maintain a stable output during continuous flashing.

[0047] In an application scenario, to achieve long - term or even permanent hair removal effect, N can be set to 6. Continuous high - frequency flashing can effectively damage hair follicles, thus achieving long - term or even permanent hair removal effect. Through the continuous flashing mode, precisely controlling the energy output of each flash can ensure safety and treatment effect, and reduce the damage to the surrounding skin.

[0048] In another application scenario, for users who are undergoing pulsed light hair removal for the first time or have sensitive skin, in order to enhance the experience during the hair removal process, N can be set to 4. By reducing the number of flashes, the risk of damage to the skin caused by excessive heat energy can be reduced. A smaller number of flashes (N = 4) means that the total energy absorbed by the skin within a single flash window is lower, which can reduce discomfort during hair removal, such as heat sensation, tingling, or redness and swelling, thereby improving the user's comfort level.

[0049] Specifically, each time the light source flashes, the capacitor needs to discharge to the light source, consuming the electrical energy stored in the capacitor. After the discharge, the charge in the capacitor will decrease. To ensure that the energy or duration of the next discharge can meet the preset requirements, the capacitor needs to be recharged to ensure there is sufficient energy for the next flash of the light source. Therefore, during the interval between two flashes of the light source, the charging module can be controlled to charge the capacitor to replenish energy for the next flash of the light source. By performing charge and discharge operations according to the preset charge and discharge logic, it can be ensured that the capacitor is not charged and discharged simultaneously, and it can also ensure that the capacitor is replenished with charge before the next flash, thereby maintaining the continuous operation and efficiency of the pulsed light device. In this way, by immediately charging the capacitor after each discharge, the energy released by the pulsed light device within this flash window can be increased, thereby improving the effect on the skin.

[0050] In some embodiments, the basic cycle of the pulsed light device operation can be formed through the above steps: discharge - charge - discharge - charge. This cycle can ensure that the pulsed light device continuously and stably outputs pulsed light of a predetermined intensity and number of times throughout the process.

[0051] It should be noted that since the energy in the capacitor is not completely exhausted after each discharge, the charging module does not need to charge the capacitor from zero, which can shorten the charging time and improve the efficiency of the entire process. At the same time, when charging the capacitor, it only needs to charge the capacitor according to the preset charging logic, and it does not necessarily need to fully charge the capacitor, but it needs to meet the energy required for the next flash of the light source, which can ensure that the capacitor is not overcharged and can also ensure that the capacitor obtains sufficient charge before the next flash, thereby maintaining the continuous operation of the pulsed light device.

[0052] The length of the interval time can be adjusted according to the specific application of the pulsed light device and the flash requirements of the light source to ensure that the light intensity and duration meet the predetermined requirements.

[0053] It can be seen that, compared with releasing the electric energy in the capacitor at once, in this application, by controlling the light source to flash N times within a single flash window, where N is an integer greater than or equal to 3, the pulsed light device releases the energy in the capacitor through at least three flashes, divides the single discharge process of the capacitor into multiple charge-discharge processes, controls the energy of each discharge in a segmented manner, avoids the high-energy impact caused by single discharge, enables the pulsed light device to disperse the energy output without sacrificing the required intensity of the pulsed light, and processes the skin in a milder and more controllable manner. This can not only reduce the pain and other discomforts of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. Moreover, immediately charging the capacitor after each discharge can increase the energy released by the pulsed light device within this flash window, thereby improving the effect on the skin.

[0054] It can be understood that in specific embodiments, the time intervals between each flash can be different or the same.

[0055] Through the research on the charge-discharge principle of the capacitor and the characteristics of the skin's energy absorption, it is found that each flash window can control the light source to flash in multiple stages, and the interval between every two adjacent stages is relatively long, that is, within the range of 0.4 seconds to 0.95 seconds (optionally within the range of 0.5 - 1.8 seconds), so as to charge the capacitor more, restore the charge of the capacitor to a certain extent to meet the discharge requirements of subsequent stages, and at the same time avoid interruption caused by too long charging time.

[0056] The following is an example to illustrate the multi-stage flash.

[0057] In some embodiments, please refer to Figure 2 , Figure 2 which is a schematic flowchart of a control method for a pulsed light device disclosed in an embodiment of this application. Step 201 may include:

[0058] Step 2011: Control the light source to flash M times, where M is an integer greater than or equal to 1.

[0059] In the first stage, first control the light source to flash M times, and the flashes in this stage can lay the foundation for the flashes in the second stage. For example, in hair removal treatment, the M flashes in the first stage can soften the hair follicles and perform preliminary hair removal, or prepare for subsequent hair removal. Moreover, by setting different values of M, the light source can be controlled to perform preliminary flashes according to different user needs.

[0060] It can be understood that when M is greater than 1, during the interval between two adjacent flashes among the M flashes, the charging module can be controlled to charge the capacitor.

[0061] Step 2012: Control the charging module to charge the capacitor for a preset duration, where the preset duration is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds.

[0062] After M flashes in the first stage, the charging module can be controlled to charge the capacitor, and the charging duration can be in the range of 0.4 seconds to 0.95 seconds. This charging duration can charge the capacitor more, restore the charge of the capacitor to a certain extent to meet the discharge requirements in the subsequent stage, and at the same time avoid interruption caused by too long charging time.

[0063] Step 2013: Control the light source to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M + K.

[0064] After the capacitor is fully charged, the light source can be controlled to flash in the second stage, that is, control the light source to flash K times to further enhance the processing effect brought by the light source flash. For example, in hair removal treatment, M flashes in the first stage can soften the hair follicles and prepare for subsequent hair removal. On this basis, K flashes in the second stage can act deeply on the hair follicles, thereby effectively destroying the hair follicle structure and inhibiting or even permanently preventing hair regrowth. In this stage, the number of flashes of the light source can also be controlled to meet different user needs.

[0065] Exemplarily, the preset duration can be 0.4 seconds, 0.5 seconds, 0.55 seconds, 0.65 seconds, 0.75 seconds, 0.85 seconds or 0.95 seconds. It should be understood that the above is an exemplary description of the preset duration and does not limit the specific value of the preset duration. For example, the preset time can also be 0.45 seconds.

[0066] When the preset duration is 0.4 seconds, the charging duration of the charging module for the capacitor is the shortest, which can maintain a fast flashing rhythm, and at the same time ensure that the capacitor has enough energy for effective flashing. It is suitable for application scenarios that require fast and continuous flashing.

[0067] When the preset duration is 0.5 seconds, the charging time provided by the charging module for the capacitor is relatively short, which is suitable for applications that require a relatively fast flashing rhythm. For example, it can be applicable to mild to moderate hair removal treatment, ensuring that the capacitor can obtain enough energy for each effective flash while maintaining efficiency.

[0068] When the preset duration is 0.55 seconds, the charging time increases slightly, and the capacitor can obtain more energy replenishment between the flashes in the first stage and the second stage. For example, it can be applicable to medium-intensity skin treatment, such as moderate hair removal, skin refinement, and improvement of mild pigmentation problems.

[0069] When the preset duration is 0.65 seconds, more charging time can be provided for the capacitor, enabling the capacitor to release more energy during the discharge process in the second stage. For example, it is applicable to deep skin treatment, including deep hair removal, significant skin texture improvement, and collagen reconstruction, etc.

[0070] When the preset duration is 0.75 seconds, the light source can perform a high-energy flash to achieve depth and intensity applications, such as hair removal for high-density hair.

[0071] When the preset duration is 0.85 seconds, the capacitor can obtain a higher amount of energy reserve before the flash in the second stage, providing sufficient preparation time for some special high-intensity treatments, such as deep skin remodeling, removing deep skin scars, or large-area deep hair removal.

[0072] When the preset duration is 0.95 seconds, the charging time of the charging module for the capacitor reaches the longest, and high-energy output can be achieved in the second stage to support strong and in-depth treatment effects.

[0073] In some embodiments, the preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds.

[0074] After controlling the light source to flash M times, the charging module can be controlled to charge the capacitor for a preset duration, which can be greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds. Then, the light source can be controlled to flash K times.

[0075] In some application scenarios, two-stage flashes can be performed. At this time, N is equal to M + K. The following is an example for illustration.

[0076] Exemplarily, for hair removal treatment, N(4) = M(2) + K(2), and the preset duration is 0.6 seconds. The pulsed light device can control the light source to emit 2 flashes in the first stage to pre-treat the target hair follicles, heat the hair follicle area, increase the temperature of this area, make the hair follicle structure become slightly fragile, and prepare for the subsequent hair removal. After completing 2 flash treatments, the charging module is controlled to charge the capacitor for 0.6 seconds to ensure that the capacitor can obtain sufficient energy supplement in a short time and prepare for the hair removal in the second stage. Based on the pre-treatment in the first stage, the light source can be controlled to emit 2 more flashes in the second stage to more deeply damage the hair follicles. Utilizing the thermal effect accumulated by the first two flashes, the last two flashes can more effectively penetrate the hair follicles and destroy their growth ability, thereby inhibiting or preventing the regrowth of hair.

[0077] Exemplarily, for hair removal treatment, N(5) = M(3) + K(2), and the preset duration is 0.5 seconds. That is, the pulsed light device can control the light source to emit 3 flashes precisely in the first stage to pre-treat the target hair follicles, heat the hair follicle area, increase the temperature of this area, make the hair follicle structure become slightly fragile, and prepare for the subsequent hair removal. After completing 3 flashes, control the capacitor to be charged for 0.5 seconds to ensure that the capacitor obtains sufficient energy supplement in a short time and is ready for the flashes in the next stage. Based on the pre-treatment in the first stage, in the second stage, the light source can be controlled to emit 2 more flashes to more deeply damage the hair follicles. Utilizing the thermal effect accumulated by the first two flashes, the last two flashes can more effectively penetrate the hair follicles and destroy their growth ability, thereby inhibiting or preventing the regrowth of hair.

[0078] Optionally, the flashes in the second stage can also adopt a higher energy setting compared to the first stage to ensure that the energy can penetrate deep into the bottom of the hair follicles and effectively damage the hair follicle structure.

[0079] In another application scenario, N is greater than M + K.

[0080] That is to say, within a flash window, multi-stage flashing can be performed. The number of stages is greater than or equal to 2, the time interval between adjacent stages is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds, and charging and energy replenishment are performed during this time interval. For example, after step 2013, it further includes: step 2014, controlling the charging module to charge the capacitor for a preset duration, the preset duration is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; step 2013, controlling the light source to flash L times, L is an integer greater than or equal to 1, and N is greater than or equal to M + K + L.

[0081] Exemplarily, for hair removal treatment, N(6) = M(2) + K(2) + L(2), the preset duration is 0.7 seconds, and L represents the number of flashes in the third stage after the flashes in the first and second stages within the flash window. That is, the pulsed light device controls the light source to emit 2 flashes in the first stage. After completing 2 flashes, control the capacitor to be charged for 0.7 seconds. Then, based on the pre-treatment in the first stage, in the second stage, control the light source to emit 2 more flashes. After that, control the capacitor to be charged for 0.7 seconds. Then, control the light source to emit 2 more flashes, making the total number of flashes reach 6 times. In this way, by processing the skin in batches in 3 stages and strengthening the photothermal effect through the additional number of flashes L, the target hair follicles are strengthened. Utilizing the thermal effect accumulated by the first two stages of flashes, the additional two flashes can more effectively penetrate the hair follicles and destroy their growth ability, thereby inhibiting or preventing the regrowth of hair.

[0082] In the above embodiments of the phased flash control, the values of M, K, the preset duration, and / or L are described in detail below.

[0083] In some embodiments, M is greater than 1.

[0084] Specifically, when M is greater than 1, the time interval between adjacent flashes in M flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds.

[0085] When M is greater than 1, that is, when controlling the light source to flash multiple times in the first stage, the time interval between adjacent flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, and can be selected as 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds. For example, when M is 2 times, controlling the light source will emit 2 flashes, and the time interval between each flash is precisely controlled between 0.06 seconds and 0.4 seconds.

[0086] In this way, the skin can be flashed multiple times in the first stage, and the interval between adjacent two flashes in this stage is controlled between 0.06 seconds and 0.4 seconds. On the one hand, it can avoid skin stinging, on the other hand, it can replenish more power, and can also ensure a better energy accumulation effect.

[0087] In some embodiments, when M is greater than 1, the time interval between adjacent flashes in M flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds, so as to improve the operability and ensure the energy accumulation effect.

[0088] In some embodiments, the preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.8 seconds.

[0089] After controlling the light source to flash M times, the charging module can be controlled to charge the capacitor for a preset duration. The preset duration can be greater than or equal to 0.5 seconds and less than or equal to 0.8 seconds, and then the light source can be controlled to flash K times.

[0090] In some embodiments, when K is greater than 1, the time interval between adjacent flashes in K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, and can be selected as 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds.

[0091] Similarly, when K is greater than 1, that is, when the light source is controlled to flash multiple times in the second stage, the time interval between adjacent flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds. For example, it can be 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds. For example, when K is 3 times, the control light source will emit 2 flashes, and the time interval between each flash is precisely controlled between 0.06 seconds and 0.4 seconds.

[0092] In some embodiments, when K is greater than 1, the time interval between adjacent flashes in K flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds, so as to improve the operability and ensure the energy accumulation effect.

[0093] It should be noted that different implementation schemes can be combined and adjusted according to specific user requirements and goals. For example, the values of M, K, and N, as well as the corresponding time intervals and preset charging durations, can be flexibly adjusted according to the size of the target area, the depth of action, and / or the skin type, so as to improve the flexibility and application range of the pulsed light device.

[0094] In an application scenario, M is 3, the time interval between M flashes is 0.08 seconds, K is 4, the time interval between K flashes is 0.35 seconds, and the preset duration is 0.6 seconds. That is, the control light source flashes 3 times, and the time interval between each flash is precisely controlled at 0.08 seconds, so as to quickly and continuously perform an initial thermal effect on the target area. After 3 flashes are completed, the charging module is immediately started to charge the capacitor for 0.6 seconds, so that the capacitor quickly recovers its energy and provides the necessary electrical energy for the K flashes in the next stage. After the capacitor charging is completed, the control light source flashes 4 times, and the time interval between each flash is adjusted to 0.35 seconds.

[0095] By refining the time intervals between adjacent flashes in the M - time and K - time flashes, it is possible to avoid the excessive heat accumulation caused by too short intervals and maintain sufficient thermal effects. For example, M = 2, the time interval between the 2 flashes is 0.2 seconds, K = 3, the time interval between the 3 flashes is 0.2 seconds, and the preset duration is 0.6 seconds. Control the light source to emit 2 flashes first, with an interval of 0.2 seconds between the 2 flashes. This can avoid heat accumulation caused by too short intervals, reduce potential damage to the skin, and ensure that there is sufficient thermal effect to start acting on the target area. Then control the charging module to charge the capacitor for 0.6 seconds to provide the required energy for the next 3 flashes of the light source. After the capacitor charging is completed, control the light source to continue emitting 3 flashes, with an interval of 0.2 seconds between the 3 flashes. This can further deepen the treatment of the target area to enhance the effect. In this embodiment, precise management can be achieved, improving the user experience and the safety of the device.

[0096] The flash duration of each flash of the light source will be described below.

[0097] In some embodiments, the flash duration of each flash of the light source is greater than or equal to 0.3 milliseconds and less than or equal to 10 milliseconds. For example, it can be 0.3 milliseconds, 0.4 milliseconds, 0.65 milliseconds, 0.8 milliseconds, 0.95 milliseconds, 1 millisecond, 1.5 milliseconds, 2 milliseconds, 2.5 milliseconds, 3 milliseconds, 3.5 milliseconds, 4 milliseconds, 4.5 milliseconds, 5 milliseconds, 5.5 milliseconds, 6 milliseconds, 6.5 milliseconds, 7 milliseconds, 7.5 milliseconds, 8 milliseconds, 8.5 milliseconds, 9 milliseconds, 9.5 milliseconds or 10 milliseconds.

[0098] The flash duration of each flash of the light source being 0.3 milliseconds to 10 milliseconds can provide great flexibility for the pulsed light device, allowing the pulsed light device to precisely process different types of skin and hair. A shorter flash duration (close to 0.3 milliseconds) is suitable for treatments that require fine control, such as hair removal on sensitive skin. Using a shorter flash duration can precisely apply thermal effects to hair follicles, reduce unnecessary heating of the deep skin, and avoid overheating of the target tissue. A longer flash duration (close to 10 milliseconds) is suitable for deep hair removal, such as hair removal for thick hair. Thick hair can absorb more energy, and a longer flash duration can ensure sufficient heat transfer to the deep hair follicles, effectively destroying the hair follicle structure to achieve the hair removal effect. A longer flash duration can provide more thermal effects to achieve a better effect.

[0099] Moreover, by setting the flash duration of the light source between 0.3 milliseconds and 10 milliseconds, on the one hand, it can avoid high - energy impacts caused by too long single - flash duration, and on the other hand, it can also avoid the situation where the single - flash duration is too short to have an effect.

[0100] In some embodiments, the flash duration of each flash of the light source is greater than or equal to 0.5 milliseconds and less than or equal to 4 milliseconds. For example, 0.5 milliseconds, 0.6 milliseconds, 0.65 milliseconds, 0.8 milliseconds, 0.95 milliseconds, 1 millisecond, 1.5 milliseconds, 2 milliseconds, 2.5 milliseconds, 3 milliseconds, 3.5 milliseconds, or 4 milliseconds can be selected.

[0101] Thus, by setting the flash duration of the light source between 0.5 milliseconds and 4 milliseconds, it is possible to further avoid an overly long single flash duration, avoid the skin being exposed to high energy for a long time, reduce the risk of skin damage caused by heat accumulation, which is particularly important for sensitive skin, and improve safety. Moreover, it can also ensure that a single flash can produce sufficient thermal effects to achieve better results.

[0102] In some embodiments, in step 2011, when M = 2, the flash durations of the two flashes in the M flashes are equal, or the flash duration of the first flash in the M flashes is less than that of the second flash.

[0103] When M = 2, that is, when the light source is controlled to flash 2 times in the first stage. The flash durations of the two flashes of the light source can be equal. This setting can be used for target areas that require uniform treatment. For example, in hair removal treatment, if the hair density of the target area is relatively uniform, two flashes with equal durations can ensure that each hair follicle receives the same amount of thermal energy, thereby achieving a uniform hair removal effect.

[0104] When M = 2, the flash duration of the first flash in the two flash durations can be less than that of the second flash. This progressive flash duration setting can gradually enhance the effect. For example, after an initial mild thermal effect, the second flash with a longer duration can act deeper on the hair follicles or deep layers of the skin to increase the intensity. It can be used in situations where surface treatment is required first and then the depth is strengthened.

[0105] In some embodiments, in step 2013, when K = 2, the flash durations of the two flashes in the K flashes are equal, or the flash duration of the first flash in the K flashes is less than that of the second flash.

[0106] When K = 2, that is, when the light source is controlled to flash 2 times in the second stage. The flash durations of the two flashes of the light source can be equal. This setting can be used for target areas that require uniform treatment. For example, in hair removal treatment, if the hair density of the target area is relatively uniform, two flashes with equal durations can ensure that each hair follicle receives the same amount of thermal energy, thereby achieving a uniform hair removal effect.

[0107] When K = 2, the duration of the first flash in the two flash durations can be less than that of the second flash. This progressive setting of the flash duration can gradually enhance the effect. For example, after an initial mild heat effect, the second longer-duration flash can act deeper on the hair follicles or the deep layer of the skin, increasing the intensity. It can be used in cases where surface treatment is required first and then the depth is enhanced.

[0108] With this flexible flash duration, the pulsed light device can meet the needs of different users and optimize the user experience.

[0109] In some embodiments, in step 2013, when K = 2, the duration of the first flash in the K flashes is less than that of the second flash, and in the K flashes, the duration of the first flash is greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, and the duration of the second flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

[0110] When K = 2, that is, when the light source flashes 2 times in the second stage.

[0111] Controlling the light source to flash for greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds for the first time can finely perform a preliminary heat effect on the target area through a shorter flash duration and soften the target area.

[0112] Controlling the light source to flash for greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds for the second time, that is, the duration of the second flash is significantly longer than that of the first flash, and using the longer flash duration to act deeper on the target tissue to achieve a better treatment effect with the accumulated heat.

[0113] The short-duration flash for the first time in combination with the long-duration flash for the second time can not only optimize the effect, but also reduce the potential damage to the skin by gradually heating, and can achieve a better treatment effect through the cumulative progression of energy.

[0114] In some embodiments, the energy emitted by the light source flash is positively correlated with the voltage of the capacitor. The capacitor provides the energy required for the light source to flash through the electrical energy it stores. The higher the voltage of the capacitor, the more electrical energy can be provided to the light source, thereby generating stronger or more pulsed light. By increasing the voltage of the capacitor, the energy of the light source flash can be enhanced, so that the photo-thermal effect during the treatment process is more significant.

[0115] In some embodiments, the pulsed light device can be a hair removal device or a skin rejuvenation device.

[0116] When the pulsed light device is a hair removal device, the hair removal device can utilize the setting of a specific flash duration to effectively remove hair of different depths and thicknesses. A shorter flash duration (close to 0.3 milliseconds) can be applied to fine hair, and a longer flash duration (close to 10 milliseconds) can be suitable for thicker hair to ensure that the light energy penetrates deep into the hair follicles and fully destroys their structure.

[0117] When the pulsed light device is a skin rejuvenation device, the skin rejuvenation device can perform precise skin rejuvenation by adjusting the flash duration. A shorter flash duration (close to 0.3 milliseconds) can be applied to subtle improvements in the surface skin, such as improving skin texture, and a longer flash duration (close to 10 milliseconds) can penetrate deep into the bottom layer of the skin to achieve the effect of deep skin rejuvenation.

[0118] Please refer to Figure 3 , Figure 3 which is a schematic structural diagram of another pulsed light device disclosed in the embodiments of the present application. As Figure 3 shown, the pulsed light device may further include a gear setting module 40. Multiple gears may be preset in the gear setting module 40, and each gear in the multiple gears corresponds to different energy outputs. By providing multiple gears, the pulsed light device can meet the usage requirements of different skin types, target area sizes, hair densities, or other factors.

[0119] The control method may further include the following steps:

[0120] In response to the user's selection operation on the target gear among the multiple gears through the gear setting module, determine the target gear.

[0121] In one case, the gear setting module may be a physical control panel with physical buttons or knobs. The user can perform selection operations by pressing or rotating these control elements to determine the target gear.

[0122] In another case, the gear setting module may be a touch screen panel. The touch screen panel is provided with an interactive interface, and different gear options are displayed on the interactive interface. The user can directly perform selection operations on the interactive interface to select the desired gear and then determine the target gear.

[0123] In another case, the gear setting module can be an application program paired with the pulsed light device. The user can pair and communicate with the pulsed light device on a device (such as a smartphone or tablet) installed with this application program through Bluetooth, Wi-Fi or other wireless communication technologies. On the application program, the user can browse different gear options, select the desired gear, and thus determine the target gear. This method can not only achieve remote control, but also assist the user to make a more appropriate choice by providing additional information (such as detailed descriptions of each gear, applicable skin types, expected effects and safety tips, etc.) provided by the application program. In addition, the application program can store the user's usage history and preference settings.

[0124] Controlling the light source to flash N times within a flash window may include: controlling the light source to flash N times within a flash window according to the target gear, where one or more of N, M, K, the preset duration, the flash duration of each flash of the light source, and the time interval between two adjacent flashes corresponding to multiple gears are different. The energy emitted by the light source flash is positively correlated with any one of N, M, K, the preset duration, the flash duration of each flash of the light source, and the time interval between two adjacent flashes.

[0125] In some embodiments, the gear setting module is provided with a high gear and a low gear.

[0126] The value of N in the high gear is greater than the value of N in the low gear, that is, the number of flashes in the high gear is greater than the number of flashes in the low gear, which can cover a wider target area or achieve a better processing effect. And / or,

[0127] The value of M in the high gear is greater than the value of M in the low gear, that is, the number of flashes in the first stage in the high gear is greater than the number of flashes in the first stage in the low gear, which can preheat the target area more effectively and lay a foundation for subsequent processing. And / or,

[0128] The value of K in the high gear is greater than the value of K in the low gear, that is, the number of flashes in the second stage in the high gear is greater than the number of flashes in the second stage in the low gear, which can strengthen the processing effect on the target area and make better use of the cumulative thermal effect. And / or,

[0129] The value of the preset duration in the high gear is greater than the value of the preset duration in the low gear, that is, the preset duration in the high gear is greater than the preset duration in the low gear, which can allow the capacitor to have more sufficient time to charge, thereby providing higher energy for the next flash. And / or,

[0130] The flash duration of the light source in the high gear is greater than that of the light source in the low gear for each flash, that is, the flash duration of the light source in the high gear for each flash is greater than that of the light source in the low gear for each flash. Prolonging the flash duration can provide a stronger thermal effect, which is suitable for deep processing requirements. And / or,

[0131] The interval time between two adjacent flashes in the high gear is greater than that between two adjacent flashes in the low gear, that is, the interval time between two adjacent flashes in the high gear is greater than that between two adjacent flashes in the low gear. Increasing the interval time between two adjacent flashes can reduce the risk of overheating, especially when the energy of each flash of the light source is relatively large.

[0132] To better understand the embodiments of the present application, the voltage change of the capacitor in the embodiments of the present application will be described below.

[0133] Taking the two-stage flash as an example for illustration, it is assumed that the capacitor is fully charged at the initial stage and the voltage is the maximum value (320V). When the light source flashes M times in the first stage, a certain amount of capacitor charge is consumed for each flash, resulting in a gradual decrease in the capacitor voltage. It is assumed that the capacitor voltage drops to 290V at the end of the first stage. The charging module is controlled to charge the capacitor for a preset duration, and this charging duration can fully or partially restore the capacitor voltage. It is assumed that the capacitor voltage is restored from 300V to 310V after charging. Then, the light source is controlled to flash K times in the second stage, and the K flashes will further consume the capacitor charge, resulting in a further voltage drop. It is assumed that after the second stage ends, the capacitor voltage drops from 310V to 190V.

[0134] When M is 2, K is 2, and the preset duration is 0.6, assuming the capacitor is fully charged and the initial voltage is 320V, the light source is controlled to perform the first flash in the first stage. The capacitor voltage drops from 320V to 305V, and then immediately replenishes the charge and restores to 307V. Then, the second flash in the first stage is performed, and the capacitor voltage further drops from 307V to 290V. Thus, the 2 flashes in the first stage are completed. After that, the charging module is controlled to charge the capacitor for 0.6 seconds, so that the capacitor voltage is restored from 290V to 310V. Then, the first flash (the third flash) in the second stage is performed, and the capacitor voltage drops from 310V to 295V, and then immediately replenishes the charge and restores to 297V. Then, the second flash (the fourth flash) in the second stage is performed, and the capacitor voltage further drops from 297V to 190V. Thus, the 2 flashes in the second stage are completed.

[0135] Please refer to Figure 4 , Figure 4 which is a schematic structural diagram of a charging module disclosed in the embodiments of the present application. As Figure 4As shown, the charging module 10 may include a power input circuit 101 and a voltage acquisition circuit 102. The power input circuit 101 and the voltage acquisition circuit 102 are respectively connected to a capacitor.

[0136] Controlling the charging module to charge the capacitor may include the following steps:

[0137] Control the power input circuit to charge the capacitor.

[0138] The power input circuit can provide a charging power supply to the capacitor. The power input circuit can be a voltage conversion device or a power adapter, etc. By accessing an external power supply, after voltage conversion, a preset power supply is output to the capacitor. For example, the power input circuit accesses an external AC or DC power supply, and after voltage conversion, outputs 24V DC power to the capacitor to provide a DC charging power supply for the capacitor.

[0139] In some embodiments, it is possible to control the voltage acquisition circuit to acquire the voltage of the capacitor. When the voltage acquired by the voltage acquisition circuit is greater than the preset voltage, control the power input circuit to stop charging the capacitor.

[0140] The voltage acquisition circuit can monitor the real-time voltage of the capacitor and feedback the acquired voltage value to the pulsed light device, and the pulsed light device is provided with a preset voltage. When the voltage of the capacitor reaches the preset voltage, it is considered that the capacitor has been fully charged. Therefore, when the voltage acquired by the voltage acquisition circuit is greater than the preset voltage, once the voltage acquired by the voltage acquisition circuit exceeds the preset voltage, control the power input circuit to stop charging the capacitor to prevent overcharging and ensure the safety of the capacitor and the pulsed light device.

[0141] In some embodiments, it is also possible to stop charging the capacitor after controlling the power input circuit to charge the capacitor for a preset time.

[0142] The pulsed light device can charge the capacitor according to the preset charging time. Even when the voltage of the capacitor does not reach the safety threshold, it will not continuously charge without limit, which can prevent overcharging caused by abnormalities of the device or the capacitor.

[0143] Please refer to Figure 5 , Figure 5 which is a schematic structural diagram of another charging module disclosed in the embodiments of the present application. As Figure 5 shown, the charging module 10 may further include a voltage stabilizing circuit 103 and a power conversion circuit 104.

[0144] The voltage stabilizing circuit 103 is connected to the power input circuit 101. The voltage stabilizing circuit 103 is used to convert the first power supply voltage output by the power input circuit 101 into a second power supply voltage and provide it to the controller. Among them, the second power supply voltage can be less than the first power supply voltage. In some embodiments, the first power supply voltage output by the power input circuit 101 can be, but is not limited to, 24V, and the second power supply voltage can be, but is not limited to, 15V.

[0145] The power conversion circuit 104 is connected between the power input circuit 101 and the capacitor. The power conversion circuit 104 can convert the first power supply voltage of the power input circuit 101 into a third power supply voltage and provide it to the capacitor to charge the capacitor. Among them, the third power supply voltage can be greater than the first power supply voltage.

[0146] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of another charging module disclosed in the embodiments of the present application. As Figure 6 shown, the charging module 10 may further include a voltage stabilizing circuit 103 and a power conversion circuit 104.

[0147] The voltage stabilizing circuit 103 is connected to the power input circuit 101, and the power conversion circuit 104 is connected between the voltage stabilizing circuit 103 and the capacitor. The power conversion circuit 104 can convert the second power supply voltage output by the voltage stabilizing circuit 103 into a third power supply voltage and provide it to the capacitor to charge the capacitor. In some embodiments, the adjustable setting range of the third power supply voltage can be approximately 260V to 320V.

[0148] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of a power input circuit disclosed in the embodiments of the present application. As Figure 7 shown, the power input circuit may include a power access unit J1, a voltage stabilizing diode D1, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a first inductor L1.

[0149] The power access unit J1 is used to receive external power supply and output a first supply voltage. The power access unit J1 is connected to the voltage stabilization circuit 103 through a first inductor L1. In some embodiments, the power access unit J1 can access an external AC power supply or a DC power supply and output the first supply voltage to the voltage stabilization circuit 103. In some embodiments, the voltage stabilization circuit 103 can convert the first supply voltage output by the power access unit J1 into a second supply voltage and provide it to the controller. The voltage stabilizing diode D1 and the first capacitor C1 are connected in parallel, and one end is connected between the power access unit J1 and the first inductor L1, and the other end is grounded. The second capacitor C2 and the third capacitor C3 are connected in parallel, and one end is connected between the first inductor L1 and the voltage stabilization circuit 103, and the other end is grounded. One end of the third capacitor C3 is also connected to the first power network V24D.

[0150] Please refer to Figure 8 , Figure 8 which is a schematic structural diagram of a voltage acquisition circuit disclosed in an embodiment of the present application. As Figure 8 shown, the voltage acquisition circuit 102 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fourth capacitor C4, and an acquisition terminal V400_ADC.

[0151] The first resistor R1, the second resistor R2, and the third resistor R3 are connected in series in sequence. The other end of the first resistor R1 is connected to the second power network V400V. The other end of the third resistor R3 is grounded. One end of the fourth resistor R4 is connected between the second resistor R2 and the third resistor R3, and the other end of the fourth resistor R4 can be connected to the acquisition terminal V400_ADC. The acquisition terminal V400_ADC can be connected between the second resistor R2 and the third resistor R3, and can be used to acquire the voltage division between the second resistor R2 and the third resistor R3 to obtain an acquisition voltage. One end of the fourth capacitor C4 is connected to the fourth resistor R4, and the other end of the fourth capacitor C4 is grounded. Thus, the voltage acquisition circuit 102 can acquire the voltage division between the second resistor R2 and the third resistor R3 to obtain an acquisition voltage and feedback it to the controller.

[0152] Please refer to Figure 9 , Figure 9 which is a schematic structural diagram of a power conversion circuit disclosed in an embodiment of the present application. As Figure 9 shown, the power conversion circuit can include a transformer T1 and an energy storage and filtering sub-circuit 90. The first input terminal 1 of the transformer T1 is connected to the driving pin of the power control unit, and the second input terminal 2 of the transformer T1 is grounded. The first output terminal 3 of the transformer T1 is connected to the energy storage and filtering sub-circuit 90, and the second output terminal 4 of the transformer T1 is connected to a capacitor.

[0153] In some embodiments, the energy storage and filtering sub-circuit 90 may, but is not limited to, be a capacitor bank, including multiple capacitors connected in parallel. The energy storage and filtering sub-circuit 90 can be used for energy storage. One end of the multiple capacitors connected in parallel can be connected to the first power network V24D, and the other end of the multiple capacitors connected in parallel is grounded.

[0154] The driving pin of the power control unit can output a driving signal to cause the transformer to convert the second supply voltage into the third supply voltage and output the third supply voltage to the capacitor to charge the capacitor. In some embodiments, the power control unit can be a chip with power control functions.

[0155] Please refer to Figure 10 , Figure 10 which is a schematic structural diagram of a voltage stabilizing circuit disclosed in an embodiment of the present application. As Figure 10 shown, the voltage stabilizing circuit may include a voltage stabilizing unit U1, a sixth capacitor C6, and a seventh capacitor C7. One end of the voltage stabilizing unit U1 is connected to the power input module, and the other end of the voltage stabilizing unit U1 is connected to the power supply pin VCC of the power control unit 42 of the first control sub-module 42. One end of the sixth capacitor C6 is connected between the voltage stabilizing unit U1 and the power input module, and the other end of the sixth capacitor C6 is grounded. One end of the seventh capacitor C7 is connected between the voltage stabilizing unit U1 and the power supply pin VCC of the power control unit 42, and the other end of the seventh capacitor C7 is grounded.

[0156] In some embodiments, the voltage stabilizing unit U1 may, but is not limited to, be a DC (DC-DC) converter or a low dropout regulator (LDO).

[0157] Please refer to Figure 11 , Figure 11 which is a schematic structural diagram of another pulsed light device disclosed in an embodiment of the present application. As Figure 11 shown, the pulsed light device may further include a first switch unit 50. The first end of the first switch unit 50 is connected to the light source, and the second end is grounded.

[0158] Controlling the light source to flash N times within a flash window may include:

[0159] Controlling the first end and the second end of the first switch unit to conduct, so that the capacitor discharges to the light source, causing the light source to flash.

[0160] A conduction instruction can be sent to the first switch unit to control the conduction of the first end and the second end of the first switch unit. The capacitor can form a loop with the ground through the first switch unit, making the circuit closed. The closed circuit allows the electrical energy stored in the capacitor to flow to the light source, providing the necessary energy for the light source to cause the light source to flash.

[0161] In some embodiments, the pulsed light device may further include a physical button (not shown in the figure). The physical button can detect a user operation to trigger the light source to flash. The controller can, in response to the user operation, generate and output an enabling signal to the discharge circuit so that the discharge circuit can control the light source to flash in response to the user operation.

[0162] In some embodiments, the pulsed light device may further include a voltage conversion circuit. The capacitor can be connected to the light source through the voltage conversion circuit, and the capacitor can also be connected to the first switch unit through the voltage conversion circuit. The capacitor can be used to store and release electrical energy. When the capacitor releases electrical energy, it can be used to provide operating electrical energy for the light source. The first switch unit can be used to turn on the voltage conversion circuit in response to the received enabling signal. In some embodiments, the first switch unit can be controlled by the enabling signal to switch to different states, such as a conducting state or a non-conducting state, so as to control the conduction or non-conduction of the voltage conversion circuit.

[0163] Please refer to Figure 12 , Figure 12 which is a schematic structural diagram of a voltage conversion circuit disclosed in an embodiment of the present application. As Figure 12 shown, the voltage conversion circuit may include a reserve unit 902 and a transformer T2.

[0164] The reserve unit 902 is connected to the capacitor. The reserve unit 902 can be used to obtain a first operating voltage from the capacitor to store electrical energy. The transformer T2 is connected between the reserve unit 902 and the light source. The transformer T2 can be used to obtain a first operating voltage from the reserve unit 902, convert the first operating voltage to a second operating voltage, and output the second operating voltage to the light source to cause the light source to flash. In some embodiments, the reserve unit 902 obtains electrical energy from the capacitor and temporarily stores it. When the reserve unit 902 releases electrical energy to the transformer T2, it also outputs electrical energy at the first operating voltage.

[0165] The reserve unit 902 may include an eighth capacitor C8, a ninth capacitor C9, a sixth resistor R6, and a seventh resistor R7.

[0166] The sixth resistor R6 and the eighth capacitor C8 are connected between the capacitor and the input terminal of the transformer T2. The seventh resistor R7 and the ninth capacitor C9 are connected between the capacitor and the input terminal of the transformer T2, and the line in which the seventh resistor R7 and the ninth capacitor C9 are connected in series is arranged in parallel with the line in which the sixth resistor R6 and the eighth capacitor C8 are connected in series. The eighth capacitor C8 and the ninth capacitor C9 are used to obtain the first operating voltage output by the capacitor to store electrical energy. In some embodiments, one end of the sixth resistor R6 and the seventh resistor R7 can be connected to the first power network V400V, and the capacitor is also connected to the first power network V400V, so that one end of the sixth resistor R6 and the seventh resistor R7 can be connected to the capacitor through the first power network V400V.

[0167] The transformer T2 has an input terminal, an output terminal, and a ground terminal. The output terminal of the transformer is connected to the light source, and the ground terminal of the transformer is grounded.

[0168] The first switching unit may include, but is not limited to, an Insulated-Gate Bipolar Transistor (IGBT).

[0169] In the case where the first switching unit is an IGBT, the IGBT may include a control terminal, a first terminal, and a second terminal. Hereinafter, taking the first switching unit as the IGBT Q1 as an example, the control terminal of the IGBT Q1 is connected to the driving circuit and can receive an enabling signal through the driving circuit. The first terminal of the IGBT Q1 is connected to the voltage conversion circuit, and the second terminal of the IGBT Q1 is grounded. When the enabling signal is received at the control terminal of the IGBT Q1, the first terminal and the second terminal of the IGBT Q1 are turned on.

[0170] Specifically, the IGBT Q1 may be configured such that when the enabling signal is received at the control terminal of the IGBT Q1, the IGBT is turned on, so that the eighth capacitor C8 and the ninth capacitor C9 output stored electrical energy to the input terminal of the transformer T2. The transformer T2 converts the first operating voltage to the second operating voltage and outputs the second operating voltage to the light source through the output terminal to cause the light source to flash.

[0171] Please refer to Figure 13 , Figure 13 which is a schematic structural diagram of another pulsed light device disclosed in the embodiments of the present application. The pulsed light device may further include a driving circuit 60, and the driving circuit 60 is connected to the first switching unit 50.

[0172] The driving circuit can receive the enabling signal sent by the controller and control the conduction and turn-off of the first switching unit.

[0173] Please refer to Figure 14 , Figure 14 which is a schematic structural diagram of a driving circuit disclosed in the embodiments of the present application. As Figure 14 shown, the driving circuit may include a signal receiving terminal 922, a third switching unit 924, and a fourth switching unit 926.

[0174] The signal receiving terminal 922 can receive the enabling signal. The third switching unit 924 is connected between the signal receiving terminal 922 and the fourth switching unit 926. The fourth switching unit 926 is respectively connected between the third switching unit 924 and the first switching unit. When the enabling signal is received at the signal receiving terminal 922, the third switching unit 924 is turned on, and the fourth switching unit 926 is then turned on, thereby controlling the first switching unit to be turned on.

[0175] The third switch unit 924 may include a second switch Q2, a ninth resistor R9, and a tenth resistor R10. The controlled terminal of the second switch Q2 is connected to the signal receiving terminal 922, the first terminal of the second switch Q2 is grounded, and the second terminal of the second switch Q2 is connected to the fourth switch unit 926 through the tenth resistor R10. The ninth resistor R9 is connected between the controlled terminal and the first terminal of the second switch Q2. When the enable signal is received at the signal receiving terminal 922, the first terminal and the second terminal of the second switch Q2 are turned on. In some embodiments, the second switch Q2 may be, but is not limited to, a MOS transistor. The controlled terminal of the second switch Q2 may be the gate, the first terminal of the second switch Q2 may be the source, and the second terminal of the second switch Q2 may be the drain.

[0176] The fourth switch unit 926 may include a third switch Q3, an eleventh resistor R11, and a twelfth resistor R12. The controlled terminal of the third switch Q3 is connected to the second terminal of the second switch Q2 through the tenth resistor R10. The first terminal of the third switch Q3 is connected to the controlled terminal through the eleventh resistor R11. The second terminal of the third switch Q3 is connected to the first switch unit through the twelfth resistor R12. In some embodiments, the second terminal of the third switch Q3 is connected to the controlled terminal of the IGBT Q1 through the twelfth resistor R12. When the first terminal and the second terminal of the second switch Q2 are turned on, the first terminal and the second terminal of the third switch Q3 are turned on. In some embodiments, the third switch Q3 may be, but is not limited to, a MOS transistor. The controlled terminal of the third switch Q3 may be the gate, the first terminal of the third switch Q3 may be the source, and the second terminal of the third switch Q3 may be the drain.

[0177] As Figure 14 shown, the drive circuit may further include a first filtering unit 927 and a first fuse unit 928.

[0178] The first filtering unit 927 is connected between the signal receiving terminal 922 and the third switch unit 924. The first filtering unit 927 may filter the signal received at the signal receiving terminal 922, such as the enable signal. The first fuse unit 928 is connected between the fourth switch unit 926 and the first switch unit. The first fuse unit 928 may be used to protect the first switch unit, for example, it may prevent the first switch unit from being impacted by overcurrent or overvoltage signals.

[0179] The first filtering unit 927 may include a fourth diode D4, an eleventh capacitor C11, and a thirteenth resistor R13. The thirteenth resistor R13 is connected between the signal receiving end 922 and the controlled end of the second switch Q2. One end of the fourth diode D4 is connected between the signal receiving end 922 and the thirteenth resistor R13, and the other end of the fourth diode D4 is grounded. The eleventh capacitor C11 is connected in parallel with the fourth diode D4. One end of the eleventh capacitor C11 is connected between the signal receiving end 922 and the thirteenth resistor R13, and the other end of the eleventh capacitor C11 is grounded. The other ends of the eleventh capacitor C11 and the fourth diode D4 may also be grounded through a sixteenth resistor R16.

[0180] The first fuse unit 928 includes a rectifier diode D5, a fourteenth resistor R14, a twelfth capacitor C12, and a fifteenth resistor R15. One end of the rectifier diode D5 is connected between the twelfth resistor R12 and the first switch unit. One end of the rectifier diode D5 is also grounded through the twelfth capacitor C12 and the fifteenth resistor R15, and the other end of the rectifier diode D5 is grounded. In some embodiments, one end of the rectifier diode D5 is connected between the twelfth resistor R12 and the control end of the IGBT Q1. The fourteenth resistor R14 is connected in parallel with the rectifier diode D5. One end of the fourteenth resistor R14 is connected between the twelfth resistor R12 and the first switch unit, and the other end of the fourteenth resistor R14 is grounded. In some embodiments, one end of the fourteenth resistor R14 is connected between the twelfth resistor R12 and the control end of the IGBT Q1.

[0181] Please refer to Figure 15 , Figure 15 which is a schematic structural diagram of another charging module disclosed in the embodiments of the present application. As Figure 15 shown, the charging module may further include a second switch unit, and one end of the capacitor connected to the light source is grounded. The second switch unit may be connected between the power control unit and the transformer T1.

[0182] The second switch unit may include, but is not limited to, a metal oxide semiconductor (MOS) transistor.

[0183] When the second switch unit is a MOS transistor, the MOS transistor Q4 may include a control end, a first end, and a second end. Hereinafter, the case where the second switch unit is the MOS transistor Q4 will be used as an example for description.

[0184] The control end of the MOS transistor Q4 is connected to the driving pin of the power control unit through a fifth resistor R5; the first end of the MOS transistor Q4 is connected to the first input end of the transformer T1, and the first end of the MOS transistor Q4 is grounded through a fifth capacitor C5; the second end of the MOS transistor Q4 is grounded through a resistor group 91. In some embodiments, the resistor group 91 may include several resistors connected in parallel, for example, two resistors connected in parallel.

[0185] Based on the above structure, the control method in the present application may further include: receiving a lighting signal.

[0186] A charging signal and a discharging signal may be respectively sent to the charging module and the first switch unit according to the lighting signal to respectively control the first switch unit and the second switch unit to be turned on and off in a preset manner, wherein the on-off states of the first switch unit and the second switch unit are opposite, so as to achieve: controlling the light source to flash N times within a flash window, N being an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor.

[0187] The on-off states of the first switch unit and the second switch unit are opposite, that is, when the first switch unit is turned on, the second switch unit is controlled to be turned off. When the capacitor discharges to the light source to make the light source flash, the connection between the charging module and the capacitor is cut off, preventing the charging process from occurring simultaneously. After the light source finishes flashing, controlling the first switch unit to be turned off and the second switch unit to be turned on, and at this time, the capacitor starts to be charged to provide energy for the next flash of the light source.

[0188] The on-off states of the first switch unit and the second switch unit may be controlled according to the lighting signal to achieve charge and discharge management of the pulsed light device.

[0189] Please refer to Figure 16 , Figure 16 which is a schematic structural diagram of another pulsed light device disclosed in the embodiments of the present application. As Figure 16 shown, the pulsed light device may further include a control switch 70. The control switch is connected to the light source.

[0190] Controlling the capacitor to discharge to the light source may include: controlling the control switch to be turned on so that the light source flashes.

[0191] Maintaining an appropriate interval time during continuous flashing of the light source can prevent the light source from overheating. Overheating of the light source may not only damage the device, but also cause unnecessary harm to the user's skin. In order to ensure that the device has enough time to cool down and avoid overheating problems, the flashing of the light source may be controlled by controlling the on-off state of the control switch. For example, by controlling the on-off state of the control switch in the flash window, the working state of the light source can be controlled, which can not only protect the device from damage, but also ensure the safety and comfort of the user.

[0192] Please refer to Figure 17 , Figure 17 which is a schematic structural diagram of another pulsed light device disclosed in the embodiments of the present application. As Figure 17 shown, the pulsed light device may include a controller, a charging module 10, a capacitor 20, a light source 30, and a control switch 70.

[0193] When controlling the charging module to charge the capacitor, the controller can send a charging instruction to the charging module 10, so that the charging module 10, the capacitor 20 and the ground form a loop, thereby realizing the charging of the capacitor 20. Specifically, the charging module 10 can charge the capacitor 20 through the power input circuit, and can monitor the voltage of the capacitor 20 through the voltage acquisition circuit. When the voltage of the capacitor 20 reaches the preset voltage or the charging time reaches the preset duration (for example, 0.6 seconds), the controller can send a stop charging instruction to the charging module 10.

[0194] When controlling the light source to flash, the controller can send a discharge instruction to the control switch 70. The control switch 70 conducts when receiving the discharge instruction, causing the light source 30 to flash.

[0195] Through the above methods and structures, it can be realized that when the light source flashes, the capacitor is controlled to discharge the light source; during the interval between two adjacent flashes, the charging module is controlled to charge the capacitor.

[0196] In one case, the controller controls the charging module to charge the capacitor and controls the light source to flash by sending a Pulse Width Modulation (PWM) signal to the charging module and the control switch.

[0197] The charging module can charge the capacitor according to the PWM signal. For example, the controller sends a PWM signal to the charging module. When the PWM is at a high level, the charging module, the capacitor and the ground form a loop, thereby realizing the charging of the capacitor. When the PWM signal returns to a low level, the charging module stops charging the capacitor. The charging duration of the capacitor can depend on the width of the PWM signal (the duration of the high level).

[0198] The control switch can control the light source to flash according to the PWM signal. For example, the controller sends a PWM signal to the control switch. When the PWM is at a high level, the control switch conducts and the light source starts to flash. When the PWM signal returns to a low level, the control light source stops flashing. For each flash, the duration of the flash can depend on the width of the PWM signal (the duration of the high level).

[0199] In another case, the controller is built-in with a timer to ensure that all actions can be carried out according to the preset actions.

[0200] When controlling the capacitor to discharge the light source, the controller can send a working signal to the control switch according to the preset time of the timer, making the control switch conduct, and then making the light source flash. After the working signal ends, the control switch disconnects and the light source stops flashing. For each flash, the duration of the flash can depend on the duration of the working signal.

[0201] When controlling the charging module to charge the capacitor, the controller can send a working signal to the charging module according to the preset time of the timer, so that the charging module, the capacitor and the ground form a loop, thereby realizing the charging of the capacitor. After the working signal ends, the charging module stops charging. The charging duration of the capacitor can depend on the duration of the working signal.

[0202] It should be understood that the same or corresponding information in the above different embodiments can be referred to each other.

[0203] In some embodiments, the pulsed light device may include a charging module, a capacitor and a light source. The capacitor is connected between the charging module and the light source. The charging module can charge the capacitor, and the capacitor can supply power to the light source to make the light source flash. The control device may include:

[0204] The control module can control the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, the control module controls the capacitor to discharge to the light source;

[0205] The control module can also control the charging module to charge the capacitor during the interval between two adjacent flashes.

[0206] In some embodiments, the control module can control the light source to flash M times, where M is an integer greater than or equal to 1; it can also control the charging module to charge the capacitor for a preset duration, the preset duration is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; it can also control the light source to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M + K.

[0207] In some embodiments, the pulsed light device further includes a gear setting module, and multiple gears are set in the gear setting module. The control device may further include:

[0208] The response module can respond to the user's selection operation of the target gear among the multiple gears through the gear setting module to determine the target gear.

[0209] The control module can control the light source to flash N times within a flash window according to the target gear.

[0210] One or more of N, M, K, the preset duration, the flash duration of each flash of the light source, and the time interval between two adjacent flashes corresponding to the multiple gears are different.

[0211] In one case, the charging module includes a power input circuit and a voltage acquisition circuit. The power input circuit and the voltage acquisition circuit are respectively connected to a capacitor to control the charging module to charge the capacitor. The control module can control the power input circuit to charge the capacitor; it can also control the voltage acquisition circuit to collect the voltage of the capacitor; further, in the case where the voltage is greater than a preset voltage, it can control the power input circuit to stop charging the capacitor, or stop charging the capacitor after the power input circuit charges the capacitor for a preset time.

[0212] In another case, the pulsed light device further includes a first switch unit. The first end of the first switch unit is connected to the light source, and the second end is grounded. It is possible to control the first end and the third end of the first switch unit to conduct, so that the capacitor discharges to the light source, causing the light source to flash.

[0213] In some embodiments, the charging module may further include a second switch unit, and one end of the capacitor connected to the light source is grounded.

[0214] The control device may further include:

[0215] The receiving module can receive a light-emitting signal.

[0216] The control module can respectively send a charging signal and a discharging signal to the charging module and the first switch unit according to the light-emitting signal to respectively control the first switch unit and the second switch unit to turn on and off in a preset manner. Among them, the on-off states of the first switch unit and the second switch unit are opposite to achieve: controlling the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, controlling the capacitor to discharge to the light source; within the interval time between two adjacent flashes, controlling the charging module to charge the capacitor.

[0217] In some embodiments, the pulsed light device may further include a control switch, and the control switch is connected to the light source. The control module can control the control switch to conduct, causing the light source to flash.

[0218] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the above-described control device, control module, response module, and receiving module can refer to the corresponding processes in the foregoing method embodiments and the content of the first aspect in the invention content, and will not be elaborated herein.

[0219] In several embodiments provided in the present application, the coupling between units can be electrical, mechanical, or other forms of coupling.

[0220] In addition, in each embodiment of the present application, each functional unit can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0221] A pulsed light device disclosed in an embodiment of the present application includes a controller, a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to supply power to the light source so that the light source flashes.

[0222] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described controller, charging module, capacitor, and light source can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0223] In several embodiments provided by the present application, the coupling between units can be electrical, mechanical, or other forms of coupling.

[0224] In addition, in each embodiment of the present application, each functional unit can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0225] Please refer to Figure 18 , Figure 18 which is a schematic structural diagram of another pulsed light device disclosed in an embodiment of the present application. As Figure 18 shown, the service terminal may include a processor 1801 and a memory 1802. The memory 1802 may store one or more computer programs. The one or more computer programs are configured to execute the method described in the foregoing method embodiments. The memory 1802 may exist independently or may be integrated with the processor 1801.

[0226] The processor 1801 may include one or more processing cores. The processor 1801 can be connected to various parts within the entire service terminal through various interfaces and lines. It can execute various functions of the service terminal and process data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1802, and by calling the data stored in the memory 1802. Optionally, the processor 1801 can be implemented in at least one hardware form of digital signal processing (DSP), field programmable gate array (FPGA), or programmable logic array (PLA). The processor 1801 can integrate a combination of one or several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for rendering and drawing the display content; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 1801 and can be implemented separately through a communication chip.

[0227] The memory 1802 may include random access memory (RAM) and may also include read-only memory (ROM). The memory 1802 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 1802 can include a program storage area and a data storage area. Among them, the program storage area can store instructions for implementing the operating system, instructions for implementing at least one function, instructions for implementing the above-mentioned various method embodiments, etc. The data storage area can also store data created during the use of the service terminal.

[0228] When the computer program instructions stored in the memory 1802 are executed, the processor 1801 can be used to execute various operations performed by the service terminal in the above method embodiments. The specific implementation of these operations can be referred to the previous embodiments and will not be elaborated here.

[0229] This application embodiment also discloses a computer-readable storage medium. The computer-readable medium stores computer program code, and the computer program code can be called by the processor to execute various operations in the above method embodiments. The specific implementation of each of the above operations can be referred to the previous embodiments and will not be elaborated here.

[0230] A computer-readable storage medium may be an electronic memory such as a flash memory, an electrically erasable programmable read only memory (EEPROM), an erasable programmable read only memory (EPROM), a hard disk, or a ROM. Optionally, the computer-readable storage medium may include a non-transitory computer-readable storage medium. The computer-readable storage medium has a storage space for program codes that execute any method steps in the above-described methods. These computer program codes may be read out from or written into one or more computer program products. The computer program codes may be compressed in a suitable form, for example.

[0231] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method for a pulse light device, characterized in that: The pulse light device is a hair removal device or a skin rejuvenation device, and includes a charging module, a capacitor and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to power the light source so that the light source flashes. The control method includes: Control the light source to flash N times in a flash window, where N is an integer greater than or equal to 3, and the flash duration of each flash of the light source is less than or equal to 10 milliseconds, so as to release energy to the skin in a manner of energy superposition and accumulation; when the light source flashes, control the capacitor to discharge the light source; In the interval between two adjacent flashes, controlling the charging module to charge the capacitor; The controlling the light source to flash N times within a flash window comprises: Control the light source to flash M times, where M is an integer greater than or equal to 1; Controlling the charging module to charge the capacitor for a preset time, wherein the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; The light source is controlled to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

2. The control method according to claim 1, characterized in that: When M is greater than 1 and K is greater than 1, the time interval between adjacent flashes in the M flashes and the time interval between adjacent flashes in the K flashes are both less than or equal to the preset duration.

3. The control method according to claim 1, characterized in that: When M is greater than 1, the time interval between adjacent flashes in the M flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds; and / or, The preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds; and / or, When K is greater than 1, the time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds.

4. The control method according to claim 3, characterized in that: The time interval between adjacent flashes in the M flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, including: The time interval between adjacent flashes in the M flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds; and / or, The time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, including: The time interval between adjacent flashes in the K flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds.

5. The control method according to any one of claims 1 to 4, characterized in that: The flash duration of each flash of the light source is greater than or equal to 0.3 milliseconds.

6. The control method according to claim 5, characterized in that: The flash duration of each flash of the light source is greater than or equal to 0.5 milliseconds and less than or equal to 4 milliseconds.

7. The control method according to any one of claims 1 to 4, characterized in that: When M is 2, the durations of two flashes in the M flashes are equal, or the duration of the first flash in the M flashes is shorter than the duration of the second flash; and / or, When K is 2, the durations of two flashes in the K flashes are equal, or the duration of the first flash in the K flashes is shorter than the duration of the second flash.

8. The control method according to any one of claims 1 to 4, characterized in that: When K is 2, the duration of the first flash in the K flashes is shorter than the duration of the second flash, and in the K flashes, the duration of the first flash is greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, and the duration of the second flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

9. The control method according to claim 4, characterized in that: The pulse light device further includes a gear setting module, wherein a plurality of gears are set in the gear setting module, and the control method further includes: In response to a user selecting a target gear position among the plurality of gear positions through the gear setting module, determining the target gear position; The controlling the light source to flash N times within a flash window comprises: Control the light source to flash N times within a flash window according to the target gear position; One or more of N, M, K, preset duration, flash duration of each flash of the light source, and time interval between two adjacent flashes corresponding to the multiple gears are different.

10. The control method according to any one of claims 1 to 4, characterized in that: The charging module includes a power input circuit and a voltage acquisition circuit, wherein the power input circuit and the voltage acquisition circuit are respectively connected to the capacitor, and the controlling the charging module to charge the capacitor includes: Controlling the power input circuit to charge the capacitor; Controlling the voltage acquisition circuit to acquire the voltage of the capacitor; When the voltage is greater than a preset voltage, the power input circuit is controlled to stop charging the capacitor, or the power input circuit is controlled to stop charging the capacitor after charging the capacitor for a preset time.

11. The control method according to any one of claims 1 to 4, characterized in that: The pulse light device further includes a first switch unit, a first end of which is connected to the light source, and a second end of which is grounded, and the controlling the light source to flash N times within a flash window includes: The first end and the second end of the first switch unit are controlled to be conductive, so that the capacitor discharges the light source, so that the light source flashes.

12. The control method according to claim 11, characterized in that: The charging module further includes a second switch unit, one end of the capacitor connected to the light source is grounded, and the control method further includes: Receive lighting signal; According to the lighting signal, a charging signal and a discharging signal are respectively sent to the charging module and the first switch unit to control the first switch unit and the second switch unit to be turned on and off in a preset manner, respectively, wherein the on and off states of the first switch unit and the second switch unit are opposite, so as to achieve: controlling the light source to flash N times in a flash window, N being an integer greater than or equal to 3, and when the light source flashes, controlling the capacitor to discharge the light source; and controlling the charging module to charge the capacitor in the interval between two adjacent flashes.

13. The control method according to claim 1, characterized in that: The pulse light device further includes a control switch, wherein the control switch is connected to the light source, and the controlling the capacitor to discharge the light source includes: The control switch is controlled to be turned on so as to make the light source flash.

14. A control device for a pulse light device, characterized in that: The pulse light device is a hair removal device or a skin rejuvenation device, and comprises a charging module, a capacitor and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source so that the light source flashes, and the control device comprises: A control module, used to control the light source to flash N times in a flash window, N being an integer greater than or equal to 3, and the flash duration of each flash of the light source being less than or equal to 10 milliseconds, so as to release energy to the skin in a manner of energy superposition and accumulation; when the light source flashes, controlling the capacitor to discharge the light source; The control module is further used to control the charging module to charge the capacitor during the interval between two adjacent flashes; The control module is also used for: Control the light source to flash M times, where M is an integer greater than or equal to 1; Controlling the charging module to charge the capacitor for a preset time, wherein the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; The light source is controlled to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

15. A pulse light device, characterized in that: The pulse light device is a hair removal device or a skin rejuvenation device, and comprises a controller, a charging module, a capacitor and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, the capacitor is used to power the light source so that the light source flashes, and the controller is used to: Control the light source to flash N times in a flash window, where N is an integer greater than or equal to 3, and the flash duration of each flash of the light source is less than or equal to 10 milliseconds, so as to release energy to the skin in a manner of energy superposition and accumulation; when the light source flashes, control the capacitor to discharge the light source; In the interval between two adjacent flashes, controlling the charging module to charge the capacitor; The controller is further used for: Control the light source to flash M times, where M is an integer greater than or equal to 1; Controlling the charging module to charge the capacitor for a preset time, wherein the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; The light source is controlled to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

16. A pulse light device, characterized in that: The method comprises a processor and a memory, wherein the processor calls a computer program stored in the memory to implement the method according to any one of claims 1 to 13.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program or a computer instruction. When the computer program or the computer instruction is executed by a processor, the method according to any one of claims 1 to 13 is implemented.

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