Dual-band intense pulse optical hair removal instrument

Abstract

The utility model discloses a dual-band intense pulse optical hair removal instrument which comprises a handle, a lamp holder is arranged at the front end of the handle, a containing opening is formed in the front side of the lamp holder, and a first lamp tube and a second lamp tube which are parallel to each other are fixed in the containing opening. A first semi-transmitting and semi-reflecting optical filter and a second semi-transmitting and semi-reflecting optical filter which are distributed in a V shape are arranged at an opening of the accommodating opening, and each of the first semi-transmitting and semi-reflecting optical filter and the second semi-transmitting and semi-reflecting optical filter comprises a light transmitting surface and a reflecting surface; the first lamp tube faces the light-transmitting face of the first semi-transmitting and semi-reflecting optical filter, and the second lamp tube faces the light-transmitting face of the second semi-transmitting and semi-reflecting optical filter. According to the utility model, when light waves with a single wave band are emitted, the light waves cannot be projected towards the direction of another lamp tube, so that the light waves are emitted outwards with sufficient energy, and compared with the prior art, single-wave-band exposure, alternate exposure or superposed exposure can be realized, so that the application requirements of different wave bands are met.

Description

Technical Field

[0001] The utility model relates to an optical hair removal device, in particular to a dual-band strong pulse optical hair removal device. Background Art

[0002] Optical hair removal devices are generally used in optical hair removal or optical skin beautification. Their working principle is to emit intense pulsed light to the skin. Intense pulsed light in certain bands can play a role in hair removal. In the prior art, a handheld optical hair removal device usually has only one lamp tube. In practical applications, the light waves that this lamp tube can emit can only be in a specified band. This optical hair removal device that uses a single lamp tube and outputs a single band has a technical problem of low exposure energy, which will lead to unsatisfactory hair removal effects. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dual-band intense pulse optical hair removal device which can be used for single-band exposure, alternating exposure or superimposed exposure and can meet the application requirements of different bands in view of the shortcomings of the existing technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A dual-band intense pulse optical hair removal device, comprising a handle, a lamp holder is provided at the front end of the handle, a receiving opening is provided on the front side of the lamp holder, a first lamp tube and a second lamp tube parallel to each other are fixed in the receiving opening, two first semi-transparent and semi-reflective filters and a second semi-transparent and semi-reflective filters distributed in a "V" shape are provided at the opening of the receiving opening, the first semi-transparent and semi-reflective filters and the second semi-transparent and semi-reflective filters are filters including a translucent surface and a reflective surface, the first lamp tube faces the translucent surface of the first semi-transparent and semi-reflective filter, and the second lamp tube faces the translucent surface of the second semi-transparent and semi-reflective filter.

[0006] Preferably, a reflective cup is provided in the accommodating opening, the reflective cup comprises a first recessed portion and a second recessed portion, and the first lamp tube and the second lamp tube are respectively disposed in the first recessed portion and the second recessed portion.

[0007] Preferably, a lamp head is fixed to the front end of the handle, and the lamp holder is arranged in the lamp head.

[0008] Preferably, a heat pipe is provided at the front end of the lamp holder, the heat pipe surrounds the edge of the accommodating port, an annular semiconductor cooling sheet is attached to the front end of the heat pipe, a sapphire piece is embedded in the front end of the lamp head, and a thermally conductive silicone sheet is sandwiched between the sapphire piece and the semiconductor cooling sheet.

[0009] Preferably, the heat pipe includes a heat-conducting extension portion, a fan is provided in the handle, a heat sink is provided at the air outlet of the fan, and the heat-conducting extension portion is connected to the heat sink.

[0010] Preferably, a triangular prism-shaped protrusion is formed on the inner side of the sapphire piece, and two inclined surfaces of the triangular prism-shaped protrusion are respectively in contact with the reflection surfaces of the first semi-transmissive and semi-reflective filter and the second semi-transmissive and semi-reflective filter.

[0011] Preferably, it comprises a first lamp driving circuit for controlling the first lamp to start exposure and a second lamp driving circuit for controlling the second lamp to start exposure.

[0012] Preferably, it comprises an exposure duration control circuit for controlling the exposure duration of the first lamp tube and the second lamp tube.

[0013] In the dual-band intense pulse optical hair removal device disclosed by the utility model, a driving circuit board, a discharge capacitor and other devices that can drive the first lamp tube and / or the second lamp tube to emit light are arranged in the handle, the first lamp tube and the second lamp tube can be distributed in parallel up and down, and the first lamp tube and the second lamp tube are respectively aligned with the light-transmitting surfaces of the first semi-transparent and semi-reflective filter and the second semi-transparent and semi-reflective filter. When the driving circuit board drives the first lamp tube to work, an intense pulse light wave of one band can be emitted. After the intense pulse light wave passes through the first semi-transparent and semi-reflective filter, the reflection surface of the second semi-transparent and semi-reflective filter has a reflection effect on it, so that the light wave is gathered in the accommodating port and then emitted outwardly; similarly, when the driving circuit board drives the second lamp tube to work, the second lamp tube emits an intense pulse light wave of another band. After the intense pulse light wave passes through the second semi-transparent and semi-reflective filter, it is reflected by the reflection surface of the first semi-transparent and semi-reflective filter, and the light wave is gathered in the accommodating port and then emitted outwardly. Based on the above principle, it can be seen that when the utility model emits a single-band light wave, it will not project it in the direction of another lamp tube, so that the light wave energy can be sufficiently emitted outward. Compared with the prior art, the utility model can perform single-band exposure, alternating exposure or superimposed exposure, thereby meeting the application requirements of different bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a stereoscopic diagram of the utility model dual-band intense pulse optical hair removal device;

[0015] Figure 2 This is a partial exploded view of the dual-band intense pulse optical hair removal device of the utility model;

[0016] Figure 3 This is an exploded view of the internal structure of the lamp holder;

[0017] Figure 4 This is a cross-sectional view of the dual-band intense pulse optical hair removal device of the utility model;

[0018] Figure 5 It is a structural diagram of a sapphire piece, a first semi-transmissive and semi-reflective filter, and a second semi-transmissive and semi-reflective filter;

[0019] Figure 6 This is the internal structure diagram of the handle;

[0020] Figure 7 is a schematic diagram of a first lamp driving circuit;

[0021] Figure 8 is a schematic diagram of a second lamp driving circuit;

[0022] Fig. 9 This is the schematic diagram of the exposure time control circuit. DETAILED DESCRIPTION

[0023] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0024] The utility model discloses a dual-band strong pulse optical hair removal device, combined with Figures 1 to 6 As shown, it includes a handle 1, a lamp holder 2 is provided at the front end of the handle 1, a receiving opening 20 is provided on the front side of the lamp holder 2, a first lamp tube 21 and a second lamp tube 22 parallel to each other are fixed in the receiving opening 20, and two first semi-transparent and semi-reflective filters 23 and second semi-transparent and semi-reflective filters 24 distributed in a "V" shape are provided at the opening of the receiving opening 20, the first semi-transparent and semi-reflective filters 23 and the second semi-transparent and semi-reflective filters 24 are filters including a translucent surface and a reflective surface, the first lamp tube 21 faces the translucent surface of the first semi-transparent and semi-reflective filter 23, and the second lamp tube 22 faces the translucent surface of the second semi-transparent and semi-reflective filter 24.

[0025] In the above structure, the handle 1 is provided with a driving circuit board, a discharge capacitor and other devices that can drive the first lamp tube 21 and / or the second lamp tube 22 to emit light. The first lamp tube 21 and the second lamp tube 22 can be arranged in parallel up and down, and the first lamp tube 21 and the second lamp tube 22 are respectively aligned with the light-transmitting surface of the first semi-transparent and semi-reflective filter 23 and the second semi-transparent and semi-reflective filter 24. When the driving circuit board drives the first lamp tube 21 to work, a strong pulse light wave of a certain wavelength band can be emitted. The strong pulse light wave can transmit the light through the first semi-transparent and semi-reflective filter 23 and the second semi-transparent and semi-reflective filter 24. After the first semi-transparent and semi-reflective filter 23 is passed through, the reflective surface of the second semi-transparent and semi-reflective filter 24 has a reflective effect on it, so that the light waves are gathered in the receiving port 20 and then emitted outward; similarly, when the driving circuit board drives the second lamp tube 22 to work, the second lamp tube 22 emits another band of strong pulsed light waves, which are reflected by the reflective surface of the first semi-transparent and semi-reflective filter 23 after passing through the second semi-transparent and semi-reflective filter 24, and the light waves are gathered in the receiving port 20 and then emitted outward. Based on the above principle, it can be seen that when the utility model emits a single-band light wave, it will not be projected in the direction of another lamp tube, so that the light wave energy is sufficiently emitted outward. Compared with the prior art, the utility model can be used for single-band exposure, alternating exposure or superimposed exposure, thereby meeting the application requirements of different bands.

[0026] In this embodiment, the two first semi-transmissive and semi-reflective filters 23 and the second semi-transmissive and semi-reflective filters 24 distributed in a “V” shape may be two independent filters or an integrally formed “V”-shaped filter.

[0027] In order to reflect light for each lamp tube, in this embodiment, Figure 3 and Figure 4 As shown, a reflective cup 3 is disposed in the receiving opening 20, and the reflective cup 3 includes a first recessed portion 30 and a second recessed portion 31. The first lamp tube 21 and the second lamp tube 22 are disposed in the first recessed portion 30 and the second recessed portion 31. As an alternative, two reflective cups 3 may be disposed simultaneously.

[0028] In this embodiment, the first lamp tube 21 and the second lamp tube 22 can be exposed simultaneously, alternately or individually. By adjusting and replacing the first semi-transparent and semi-reflective filter 23 and the second semi-transparent and semi-reflective filter 24, light wave energy in different bands can be achieved, for example, for hair removal and skin beautification respectively.

[0029] In this embodiment, two lamp tubes cooperate with two filters to simultaneously output light in the hair removal band, so that the exposure energy is superimposed and the hair removal effect is improved; furthermore, the exposure can be alternating, which increases the exposure frequency, reduces the energy of each exposure, and reduces pain and burning sensation; in addition, one lamp tube can be used for exposure, which is used for hair removal areas with finer and less hair.

[0030] As a preferred method, combined with Figure 1 , 2 As shown in , 4 , a lamp holder 4 is fixed to the front end of the handle 1 , and the lamp holder 2 is disposed inside the lamp holder 4 .

[0031] See also Figure 2 In this embodiment, a heat pipe 5 is provided at the front end of the lamp holder 2, and the heat pipe 5 surrounds the edge of the receiving port 20. A ring-shaped semiconductor cooling sheet 6 is attached to the front end of the heat pipe 5. A sapphire piece 7 is embedded at the front end of the lamp holder 4, and a heat-conducting silicone sheet 8 is sandwiched between the sapphire piece 7 and the semiconductor cooling sheet 6. The cold end of the semiconductor cooling sheet 6 faces the sapphire piece 7, and the heat-conducting silicone sheet 8 is used to achieve heat transfer between the sapphire piece 7 and the semiconductor cooling sheet 6, so that the sapphire piece 7 remains cool, thereby alleviating pain and burning sensation.

[0032] In order to improve the cooling capacity of the semiconductor cooling sheet 6, in this embodiment, the heat pipe 5 includes a heat-conducting extension portion 50, a fan 9 is provided in the handle 1, a heat sink 10 is provided at the air outlet of the fan 9, and the heat-conducting extension portion 50 is connected to the heat sink 10. In practical applications, the heat pipe 5, the heat-conducting extension portion 50 and the heat sink 10 are an integrated structure and can be integrated into the same component.

[0033] See also Figure 4 and Figure 5 In this embodiment, a triangular prism 70 is formed on the inner side of the sapphire member 7, and two inclined surfaces of the triangular prism 70 are respectively in contact with the reflection surfaces of the first semi-transmissive and semi-reflective filter 23 and the second semi-transmissive and semi-reflective filter 24. In the above structure, the back side of the sapphire member 7 has a triangular prism 70, and the triangular prism 70 is used to extend toward the first semi-transmissive and semi-reflective filter 23 and the second semi-transmissive and semi-reflective filter 24, so that the light passing through the first semi-transmissive and semi-reflective filter 23 and / or the second semi-transmissive and semi-reflective filter 24 is directly transmitted outward from the sapphire member 7, avoiding the formation of a complex optical path in the receiving port 20, thereby ensuring sufficient light wave energy.

[0034] In actual application, this embodiment adopts the sapphire cooling function, and the cold compress area is large. The sapphire covers the exposure window and the application part around it. The sapphire corresponding to the exposure window is used for cold compressing the hair removal area, and the sapphire around the exposure window is used for cold compressing the hair removal area. The hair removal area is cold compressed, and the areas before and after hair removal are cold compressed, which can reduce pain and increase comfort. In addition, this embodiment maximizes the reflection efficiency by adjusting the shape, angle and position of the reflective cup with the lamp tube, thereby maximizing the light power.

[0035] In this embodiment, a driving circuit board is provided in the handle 1, and the driving circuit board includes a first lamp driving circuit 210 for controlling the first lamp 21 to start exposure and a second lamp driving circuit 220 for controlling the second lamp 22 to start exposure. It also includes an exposure duration control circuit 230 for controlling the exposure duration of the first lamp 21 and the second lamp 22. Wherein:

[0036] See also Figure 7 The first lamp driving circuit 210 includes a diode D2, a switch tube SC1, a transformer T2, a capacitor C1, a capacitor C2 and a diode D4. The cathode of the diode D2 is connected to a 400V DC voltage terminal through a resistor R1 and a resistor R2 connected in series in sequence. The anode of the diode D2 is connected to a 400V DC voltage terminal through a resistor R3 and a resistor R6 connected in series in sequence. The first end of the capacitor C1 is connected to the anode of the diode D2. The primary winding of the transformer T2 is connected in series between the second end of the capacitor C1 and the ground. The secondary winding of the transformer T2 is connected in series between the triggering end of the first lamp 21 and the ground. The The high potential end is connected to the cathode of the diode D2, the low potential end of the switch tube SC1 is grounded, the control end of the switch tube SC1 is used to access the first lamp start signal G2, the first end of the capacitor C2 is connected to the cathode of the diode D2, the second end of the capacitor C2 is connected to the anode of the diode D4 through the resistors R4 and R15 connected in parallel, the cathode of the diode D4 is grounded, the high potential end of the first lamp tube 21 is connected to the 400V DC voltage end, the low potential end of the first lamp tube 21 is connected to the second end of the capacitor C2, and the capacitor C2 is used to load a -400V voltage to the low potential end of the first lamp tube 21.

[0037] The working principle of the first lamp tube driving circuit 210 is: the 400V DC voltage end charges the capacitor C1 through the resistor R6 and the resistor R3, so that the end of the capacitor C1 connected to the resistor R3 is a 400V positive voltage, and the end of the capacitor C1 connected to the primary winding of the transformer T2 is negative. At the same time, the 400V DC voltage end charges the capacitor C2 through the resistor R1 and the resistor R2, the end of the capacitor C2 connected to the resistor R2 is a 400V positive voltage, and the end of the capacitor C2 connected to the resistor R15 is negative, so when the capacitor C2 is discharged, a -400V voltage can be loaded to the low potential end of the first lamp tube 21. In the specific control process, when the first lamp start signal G2 changes from a low level to a high level, the switch tube SC1 is turned on, and the first end of the capacitor C1 is pulled down to the ground, and the second end of the capacitor C1 is -400V. At this time, the primary winding 1 and 3 ends of the transformer T2 are -400V, and the secondary winding 2 and 3 ends of T2 are -10KV, so that the first lamp 21 (i.e. Figure 7The trigger end of W1 in the circuit provides a -10KV trigger voltage;

[0038] At the same time, when the first lamp start signal G2 changes from a low level to a high level, the switch tube SC1 is turned on, and the first end of the capacitor C2 is pulled down to the ground. At this time, the second end of the capacitor C2 is -400V, and the -400V voltage is loaded on the low potential end of the first lamp tube 21. Since the high potential end of the first lamp tube 21 is connected to the 400V DC voltage end, the voltage across the first lamp tube 21 is 800V at this time. At the same time, IGBT-DRV outputs a high level with a duration, which is amplified by U8 and drives Q2 to turn on. The ground wire forms a path to the cathode of the lamp through the switch tube Q2, the diode D2, and the diode D9. The charging and discharging capacitors supply power to the lamp, and the first lamp tube 21 starts exposure.

[0039] For the same circuit structure, see Figure 8 The second lamp driving circuit 220 includes a diode D5, a switch tube SC3, a transformer T1, a capacitor C14, a capacitor C16 and a diode D6. The cathode of the diode D5 is connected to a 400V DC voltage terminal through a resistor R9 and a resistor R8 connected in series in sequence. The anode of the diode D5 is connected to a 400V DC voltage terminal through a resistor R12 and a resistor R13 connected in series in sequence. The first end of the capacitor C14 is connected to the anode of the diode D5. The primary winding of the transformer T1 is connected in series between the second end of the capacitor C14 and the ground. The secondary winding of the transformer T1 is connected in series between the triggering end of the second lamp 22 and the ground. The high The potential end is connected to the cathode of the diode D5, the low potential end of the switch tube SC3 is grounded, the control end of the switch tube SC3 is used to access the second lamp start signal G1, the first end of the capacitor C16 is connected to the cathode of the diode D5, the second end of the capacitor C16 is connected to the anode of the diode D6 through the resistor R7 and the resistor R10 connected in parallel, the cathode of the diode D6 is grounded, the high potential end of the second lamp tube 22 is connected to the 400V DC voltage end, the low potential end of the second lamp tube 22 is connected to the second end of the capacitor C16, and the second end of the capacitor C16 is used to load a -400V voltage to the low potential end of the second lamp tube 22.

[0040] The circuit principle of the second lamp driving circuit 220 is the same as that of the first lamp driving circuit 210 , so it will not be described here in detail.

[0041] In the above circuit, combined with Figure 7 and Figure 8As shown, the switch tube SC1 (SC3), capacitor C2 (C16), lamp W1 (W2) and capacitor C1 (C14) form a dual-path IPL lamp exposure circuit: during the IPL lamp exposure triggering and starting process, when the signal G1 (G2) is low, the switch tube SC1 (SC3) is in the cut-off state and the capacitors C2 (C16) and C1 (C14) are charged. When the signal G1 (G2) is high, the switch tube SC1 (SC3) is turned on, thereby triggering and starting the IPL lamp. In order to ensure reliable triggering of the IPL lamp, the dual-path IPL lamp exposure circuit adopts a 2-fold voltage circuit, namely: capacitor C2 (C16), switch tube SC1 (SC3), lamp W1 (W2). At this time, the voltage applied to the lamp W1 (W2) is 400V + the voltage of capacitor C2 (C16), so that the voltage across the IPL lamp reaches 800V, thereby stably and reliably triggering and starting the IPL lamp to expose it. In the above circuit, the switch tube SC1 and the switch tube SC3 can be switch devices such as thyristors.

[0042] On this basis, see Fig. 9 , this embodiment includes an exposure time control circuit 230, the exposure time control circuit 230 includes a switch tube Q2 and a diode D1, the low potential end of the first lamp tube 21 and the low potential end of the second lamp tube 22 are both connected to the anode of the diode D1, the cathode of the diode D1 is connected to the high potential end of the switch tube Q2, the low potential end of the switch tube Q2 is grounded, and the control end of the switch tube Q2 is used to access the IGBT-DRV control signal. Further, it also includes a diode D3 and a diode D7, the cathode of the diode D3 is connected to the 400V DC voltage end, the anode of the diode D3 is connected to the high potential end of the switch tube Q2, the anode of the diode D7 is grounded, and the cathode of the diode D7 is connected to the high potential end of the switch tube Q2. In the above circuit, the switch tube Q2 can be an IGBT tube.

[0043] In the above-mentioned exposure time control circuit 230, see Fig. 9, when the switch tube Q2 is turned on, the C pole of the switch tube Q2 provides a low voltage path for the cathode of the IPL lamp tube through the diode D1 and the diode D9, and the discharge time of the capacitor is controlled by the IGBT-DRV signal. In practical applications, when the IPL lamp tube is started and triggered, the IGBT-DRV signal is set high to make the switch tube Q2 turn on and continue current, and the exposure time can be adjusted by adjusting the IGBT signal. Regarding the detailed control process of the switch tube Q2 and the principle of controlling the exposure time, in this embodiment: IGBT-DRV outputs a high level with a duration, which is amplified by the amplifier U8 to drive the switch tube Q2 to turn on. The duration of the high level determines the turn-on time of the switch tube Q2, and then determines the discharge time of the charging and discharging capacitor. The ground wire provides a low voltage path to the cathode of the lamp tube through the switch tube Q2, the diode D2, and the diode D9, and the charging and discharging capacitor supplies power to the lamp tube.

[0044] In this embodiment, the 400V DC voltage comes from a preset boost unit of the optical hair removal device, and the first lamp start signal G2, the second lamp start signal G1 and the IGBT-DRV control signal are derived from a single chip microcomputer or a similar controller of the main control board of the optical hair removal device. By controlling the three signal logics of the start signal G1, the start signal G2 and the IGBT-DRV signal, this embodiment can realize functions such as single laser exposure, dual laser simultaneous exposure and single laser alternating exposure, and can realize reliable control of the exposure state of the first lamp 21 and the second lamp 22.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-band intense pulse optical hair removal device, characterized in that: The invention comprises a handle (1), wherein a lamp holder (2) is provided at the front end of the handle (1), and a receiving opening (20) is provided at the front side of the lamp holder (2), wherein a first lamp tube (21) and a second lamp tube (22) parallel to each other are fixed in the receiving opening (20), and two first semi-transparent and semi-reflective filters (23) and a second semi-transparent and semi-reflective filters (24) distributed in a "V" shape are provided at the opening of the receiving opening (20), wherein the first semi-transparent and semi-reflective filters (23) and the second semi-transparent and semi-reflective filters (24) are filters comprising a light-transmitting surface and a reflective surface, wherein the first lamp tube (21) faces the light-transmitting surface of the first semi-transparent and semi-reflective filter (23), and the second lamp tube (22) faces the light-transmitting surface of the second semi-transparent and semi-reflective filter (24).

2. The dual-band intense pulse optical hair removal device as claimed in claim 1, characterized in that: A reflective cup (3) is arranged in the receiving opening (20), the reflective cup (3) comprising a first recessed portion (30) and a second recessed portion (31), the first lamp tube (21) and the second lamp tube (22) being arranged in the first recessed portion (30) and the second recessed portion (31) respectively.

3. The dual-band intense pulse optical hair removal device as claimed in claim 1, characterized in that: A lamp head (4) is fixed to the front end of the handle (1), and the lamp holder (2) is arranged inside the lamp head (4).

4. The dual-band intense pulse optical hair removal device as claimed in claim 3, characterized in that: A heat pipe (5) is provided at the front end of the lamp holder (2), the heat pipe (5) surrounds the edge of the accommodating opening (20), an annular semiconductor cooling sheet (6) is attached to the front end of the heat pipe (5), a sapphire piece (7) is embedded at the front end of the lamp head (4), and a heat-conducting silicone sheet (8) is sandwiched between the sapphire piece (7) and the semiconductor cooling sheet (6).

5. The dual-band intense pulse optical hair removal device as claimed in claim 4, characterized in that: The heat pipe (5) comprises a heat-conducting extension portion (50), a fan (9) is provided inside the handle (1), a heat sink (10) is provided at the air outlet of the fan (9), and the heat-conducting extension portion (50) is connected to the heat sink (10).

6. The dual-band intense pulse optical hair removal device as claimed in claim 4, characterized in that: A triangular prism-shaped protrusion (70) is formed on the inner side of the sapphire piece (7), and two inclined surfaces of the triangular prism-shaped protrusion (70) are respectively fitted with the reflection surfaces of the first semi-transmissive and semi-reflective filter (23) and the second semi-transmissive and semi-reflective filter (24).

7. The dual-band intense pulse optical hair removal device according to claim 1, characterized in that: It comprises a first lamp tube driving circuit (210) for controlling the first lamp tube (21) to start exposure and a second lamp tube driving circuit (220) for controlling the second lamp tube (22) to start exposure; The first lamp tube driving circuit (210) comprises a diode D2, a switch tube SC1, a transformer T2, a capacitor C1, a capacitor C2 and a diode D4, wherein the cathode of the diode D2 is connected to a 400V DC voltage terminal via a resistor R1 and a resistor R2 connected in series in sequence, the anode of the diode D2 is connected to a 400V DC voltage terminal via a resistor R3 and a resistor R6 connected in series in sequence, the first end of the capacitor C1 is connected to the anode of the diode D2, the primary winding of the transformer T2 is connected in series between the second end of the capacitor C1 and the ground, the secondary winding of the transformer T2 is connected in series between the triggering end of the first lamp tube (21) and the ground, and the high voltage of the switch tube SC1 is connected in series between the triggering end of the first lamp tube (21) and the ground. The high potential end of the first lamp (21) is connected to the cathode of the diode D2, the low potential end of the switch tube SC1 is grounded, the control end of the switch tube SC1 is used to receive the first lamp start signal G2, the first end of the capacitor C2 is connected to the cathode of the diode D2, the second end of the capacitor C2 is connected to the anode of the diode D4 through the resistor R4 and the resistor R15 connected in parallel, the cathode of the diode D4 is grounded, the high potential end of the first lamp (21) is connected to the 400V DC voltage end, the low potential end of the first lamp (21) is connected to the second end of the capacitor C2, and the capacitor C2 is used to load a -400V voltage to the low potential end of the first lamp (21); The second lamp tube driving circuit (220) comprises a diode D5, a switch tube SC3, a transformer T1, a capacitor C14, a capacitor C16 and a diode D6, wherein the cathode of the diode D5 is connected to a 400V DC voltage terminal via a resistor R9 and a resistor R8 connected in series in sequence, the anode of the diode D5 is connected to a 400V DC voltage terminal via a resistor R12 and a resistor R13 connected in series in sequence, the first end of the capacitor C14 is connected to the anode of the diode D5, the primary winding of the transformer T1 is connected in series between the second end of the capacitor C14 and the ground, the secondary winding of the transformer T1 is connected in series between the triggering end of the second lamp tube (22) and the ground, and the high potential of the switch tube SC3 is connected in series between the triggering end of the second lamp tube (22) and the ground. The first end of the capacitor C16 is connected to the cathode of the diode D5, the low potential end of the switch tube SC3 is grounded, the control end of the switch tube SC3 is used to receive the second lamp start signal G1, the first end of the capacitor C16 is connected to the cathode of the diode D5, the second end of the capacitor C16 is connected to the anode of the diode D6 through the resistor R7 and the resistor R10 connected in parallel, the cathode of the diode D6 is grounded, the high potential end of the second lamp tube (22) is connected to the 400V DC voltage end, the low potential end of the second lamp tube (22) is connected to the second end of the capacitor C16, and the second end of the capacitor C16 is used to load a -400V voltage to the low potential end of the second lamp tube (22).

8. The dual-band intense pulse optical hair removal device according to claim 7, characterized in that: It comprises an exposure duration control circuit (230) for controlling the exposure duration of the first lamp tube (21) and the second lamp tube (22); The exposure duration control circuit (230) comprises a switch tube Q2 and a diode D1, the low potential end of the first lamp tube (21) and the low potential end of the second lamp tube (22) are both connected to the anode of the diode D1, the cathode of the diode D1 is connected to the high potential end of the switch tube Q2, the low potential end of the switch tube Q2 is grounded, and the control end of the switch tube Q2 is used to access the IGBT-DRV control signal. Furthermore, the circuit further comprises a diode D3 and a diode D7, the cathode of the diode D3 is connected to the 400V DC voltage end, the anode of the diode D3 is connected to the high potential end of the switch tube Q2, the anode of the diode D7 is grounded, and the cathode of the diode D7 is connected to the high potential end of the switch tube Q2.

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