Skin care treatment device

Abstract

Disclosed is a skin care treatment device. The skin care treatment device according to an embodiment of the present invention includes: a main body; a suction header having a suction port, which comes into contact with skin, at an end portion protruding outward from the main body; a light irradiation module for irradiating the user's skin, which comes into contact with the suction port, with light that is generated when power is applied; a suction module that is provided inside the main body and applies negative pressure for raising a treatment site of the skin, which comes into contact with the suction port, to the suction port when power is applied; at least one optical sensor for sensing and measuring light that enters through an optical path formed at the end portion of the suction port which comes into contact with the skin; and a control unit electrically connected to the light irradiation module and the suction module. The control unit can selectively control the operation timing of the suction module by determining the contact state between the suction port and the skin on the basis of a measurement value detected by the optical sensor.

Description

Skin beauty treatment device

[0001] The present invention relates to a skin beauty treatment device, and more specifically, to a skin beauty treatment device capable of determining the state of contact between a user's skin and a suction area based on skin color or brightness of light measured in an area to be suctioned when in contact with the user's skin.

[0002] In general, a hair remover is a device for removing body hair, i.e. hair, scalp hair, etc. that grows on the skin of the human body.

[0003] Traditional hair removal devices known include razors that use blades to cut body hair, and forceful hair removal devices that forcibly pull out the hair and remove the hair root. However, although these hair removal methods are convenient, they have the disadvantage of not lasting long.

[0004] Therefore, recently, laser hair removal has been gaining attention as a fundamental solution to prevent hair growth.

[0005] Laser hair removal works by damaging hair-generating cells, preventing hair from growing back in the hair follicle. Hair follicles are the skin organs that produce hair, and when melanin cells in the follicle are lost, hair can no longer grow.

[0006] That is, by using pulse-type light energy, the light energy is converted into heat energy when absorbed by the melanin chromophore of the skin through the principle of selective photothermolysis, and this heat energy is transferred to the hair follicle to remove unwanted hair.

[0007] (Patent Document 1) KR10-1784536 B1

[0008] Patent Document 1 discloses a device for cosmetic treatment of the skin by forcibly sucking the skin with negative pressure using the suction power of a vacuum pump equipped with a vacuum module.

[0009] In the case of patent document 1, in order for the skin in contact with the end of the suction port to be forcibly sucked by the negative pressure, which is the vacuum suction force of the vacuum module mounted on the beauty device, the skin can be efficiently forcibly sucked by the negative pressure generated when the vacuum module operates while the opening end of the suction port is in even contact with the skin as a whole.

[0010] However, it is difficult to visually confirm that the opening end of the suction port is in full and even contact with the user's irregular skin, and if the opening end of the suction port is in uneven and partial contact with the user's skin, resulting in a gap, skin suction by the vacuum suction force generated from the vacuum module is not performed smoothly, making skin cosmetic treatment impossible or inefficient.

[0011] In addition, before the operation of the vacuum module, the user must force the end of the suction port to press against the skin to maintain a state of initial contact between the user's skin and the suction port, which causes inconvenience in use.

[0012] In addition, a touch sensor that detects whether or not contact is made with the skin at the opening end of the suction port can be provided to check the contact state between the skin and the suction port, but it is fundamentally impossible to detect a state in which the entire opening end of the suction port is in contact with the skin using only the touch sensor.

[0013] The present invention is intended to solve the above-mentioned problem, and an object of the present invention is to provide a skin beauty treatment device that controls the operating timing of a suction module by judging the state of contact between the user's skin and a suction port to which negative pressure is applied based on the brightness of the skin color.

[0014] Another object of the present invention is to provide a skin beauty treatment device capable of controlling the output intensity of a suction module based on skin color measured in a user's skin area.

[0015] The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0016] According to one aspect of the present invention, a skin beauty treatment device is provided, comprising: a main body; a suction header having a suction port at an end protruding outward from the main body and coming into contact with the skin; a light irradiation module that irradiates light generated when power is applied to the skin of a user coming into contact with the suction port; a suction module that is provided inside the main body and applies negative pressure toward the suction port when power is applied to elevate a treatment area of ​​the skin coming into contact with the suction port; at least one optical sensor that detects and measures light introduced into the interior through an optical path formed at an end of the suction port coming into contact with the skin; and a control unit electrically connected to the light irradiation module and the suction module, respectively; wherein the control unit determines a state of contact between the suction port and the skin based on a measurement value detected by the optical sensor and selectively controls an operating timing of the suction module.

[0017] At this time, the optical sensor may be a color sensor that detects the skin color of a skin area related to light introduced through the optical path and converts the color information into an electrical signal.

[0018] At this time, the optical sensor may be a light sensor that detects the brightness of light introduced through the optical path and converts it into an electrical signal according to the amount of light detected.

[0019] At this time, at least one auxiliary optical sensor is provided on the inner wall of the suction port corresponding to the suction space formed inside the suction port, and the auxiliary optical sensor may be any one of a color sensor that detects the skin color of a skin area related to light entering the suction space and converts the color information into an electrical signal, and a light sensor that detects the brightness of light entering the suction space and converts it into an electrical signal according to the amount of light detected.

[0020] At this time, the control unit can control the output intensity of the light irradiation module based on the skin color detected and measured by the color sensor.

[0021] At this time, the suction port may include at least one touch sensor that generates a contact signal when in contact with the skin at the end and transmits the generated contact signal to the control unit.

[0022] According to the above configuration, the skin beauty treatment device according to the present invention can accurately and easily check the contact state between the skin and the suction port based on the real-time measurement value of an optical sensor that detects light provided through an optical path provided in a suction port that comes into contact with the skin and measures the brightness value of skin color or the brightness value of light, so that the operating timing of the suction module that applies negative pressure to the suction space can be precisely and accurately controlled, and skin elevation of the skin area by the negative pressure applied from the suction module can be efficiently performed without unnecessary power loss.

[0023] In addition, since the output intensity of the laser light for hair removal can be adjusted or the laser light irradiation can be stopped according to the determined skin color or brightness of the skin color by accurately determining the skin color based on the measurement value of the optical sensor or auxiliary optical sensor that detects the skin color in the skin area, the user's satisfaction can be increased and the hair removal efficiency can be improved by safely performing hair removal on the skin treatment area without worrying about skin damage or skin burns during hair removal.

[0024] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0025] FIG. 1 is a perspective view illustrating a skin beauty treatment device according to an embodiment of the present invention.

[0026] Figure 2 is a schematic diagram showing the installation state of a suction module applied to a skin beauty treatment device according to an embodiment of the present invention.

[0027] FIG. 3 is a detailed drawing showing a suction port of a suction header applied to a skin beauty treatment device according to an embodiment of the present invention.

[0028] FIG. 4 is a cross-sectional view illustrating a suction port of a suction header applied to a skin beauty treatment device according to an embodiment of the present invention.

[0029] FIG. 5 is a detailed drawing showing a suction port of a suction header applied to a skin beauty treatment device according to another embodiment of the present invention.

[0030] FIG. 6 is a cross-sectional view illustrating a suction port of a suction header applied to a skin beauty treatment device according to another embodiment of the present invention.

[0031] FIG. 7a and FIG. 7b are schematic diagrams showing a poor contact state in which a gap is formed when a suction header of a skin beauty treatment device according to an embodiment of the present invention comes into contact with the skin, and a good contact state in which a gap is not formed.

[0032] FIG. 8 is a Fitzpatrick skin classification table, which is a judgment criterion for determining skin color measured by a color sensor of a skin beauty treatment device according to an embodiment of the present invention.

[0033] FIG. 9a, FIG. 9b and FIG. 9c are operation state diagrams showing adhesion, suction and exhaust in a skin beauty treatment device according to an embodiment of the present invention.

[0034] Figure 10 is an operation flow chart of a skin beauty treatment device according to an embodiment of the present invention.

[0035] Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts irrelevant to the description are omitted in the drawings, and the same reference numerals designate identical or similar components throughout the specification.

[0036] The words and terms used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted in a way that is consistent with the technical idea of ​​the present invention, in accordance with the principles by which the inventor can define terms and concepts in order to best explain his or her invention.

[0037] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to a preferred embodiment of the present invention, and do not represent all of the technical ideas of the present invention, so there may be various equivalents and modified examples that can replace the configuration at the time of filing of the present invention.

[0038] In this specification, terms such as “include” or “have” are intended to describe the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0039] When a component is said to be "in front of," "behind," "above," or "below" another component, this includes not only being placed "in front of," "behind," "above," or "below" the other component in direct contact with it, but also if there is another component intervening therebetween. Furthermore, when a component is said to be "connected" to another component, this includes not only being directly connected to one another, but also being indirectly connected to one another, unless there are special circumstances.

[0040] Hereinafter, a skin beauty treatment device according to a preferred embodiment of the present invention will be described with reference to the drawings.

[0041] A skin beauty treatment device (1) according to a preferred embodiment of the present invention may include a main body (10), a suction header (20), a light irradiation module (30), a suction module (40), a control unit, and an optical sensor (50), as shown in FIGS. 1, 2, 3, and 4.

[0042] Hereinafter, in the description with reference to the drawings, the direction in which the suction port (22) of the suction header (20) of the skin beauty treatment device (1) faces is defined as forward, and the opposite direction is defined as rear, and a space of a certain size formed inside the suction port (22) when the suction port (22) comes into contact with the skin is defined as a suction space (S).

[0043] This skin beauty treatment device (1) can forcibly raise the skin to a certain height in the suction space (S) inside the suction port (22) by applying a certain negative pressure to the suction port (22) of the suction header (20) that directly contacts the user's skin.

[0044] Continuously, the raised skin can be brought closer to the light irradiation module (30) to perform a predetermined skin beauty treatment effect such as light irradiation efficiency for hair removal and massage.

[0045] Such negative pressure application can be accomplished by at least one suction module (40).

[0046] At this time, the skin beauty treatment device (1) according to the embodiment of the present invention may include at least one optical sensor (50) installed adjacent to the suction space.

[0047] This optical sensor (50) is a sensor member that detects light flowing in through an optical path (55) formed at the end of the suction port that comes into contact with the skin, measures the brightness of the skin color, which is the skin tone, or the brightness of the light, which is the illuminance, and optically processes it.

[0048] The above optical sensor (50) may be a color sensor that detects the skin color of the skin area related to the light entering through the optical path (55) and converts the color information into an electrical signal, or may be a light sensor that detects the brightness of the light entering through the optical path (55) and converts the detected amount of light into an electrical signal.

[0049] In addition, the control unit can selectively control the operating timing of the suction module (40) by judging the contact state between the end of the suction port (22) and the corresponding skin based on the brightness value of the skin color detected and measured by the optical sensor (50) or the brightness value of the light detected and measured by the optical sensor (50).

[0050] By operating the suction module (40) while the ends of the suction port (22) are in complete contact with the skin and are in close contact with each other, negative pressure is generated in the suction space, and the generated negative pressure is applied to the skin area to be treated, thereby lifting the skin to a certain height.

[0051] Accordingly, according to the skin beauty treatment device (1) according to one embodiment of the present invention, it is possible to determine whether there is complete contact between the skin and the suction port, which is an essential prerequisite before applying negative pressure to the skin and suctioning, thereby maximizing the skin beauty treatment effect that the skin beauty treatment device (1) is intended to achieve.

[0052] Hereinafter, each component of a skin beauty treatment device according to an embodiment of the present invention will be described in detail.

[0053] A skin beauty treatment device (1) according to an embodiment of the present invention includes a main body (10).

[0054] The above main body (10) can be provided so that a user can hold and operate and control the skin beauty treatment device (1) while functioning as a casing for accommodating other configurations as shown in FIGS. 1, 2, 3 and 4.

[0055] This main body (10) may be provided in a roughly I-shaped bar shape with an internal space of a certain size that houses the suction module (40) or may be formed in a shape that has a handle that a user can hold with his or her hand.

[0056] The outer surface of the main body (10) may be provided with a display for indicating the control status of the skin beauty treatment device (1), a button member or a touch screen for inputting a signal for controlling the skin beauty treatment device (1).

[0057] Meanwhile, the shape of the main body (10) is not particularly limited and can be appropriately modified to suit the characteristics of other components accommodated inside or the usage environment.

[0058] The main body (10) includes a suction header (20) having a suction port (22) whose end is in contact with the skin, and the internal space of the main body (10) includes at least one suction module (40) that generates a negative pressure, which is a suction force, when power is applied, and the end of the main body (10) adjacent to the suction module (40) may include at least one light irradiation module (30) that generates a laser light when power is applied.

[0059] At this time, the suction header (20) can be detachably assembled to the end of the main body.

[0060] The above suction header (20) may be extended from the main body (10) as shown in FIGS. 1, 2, 3 and 4, may be integrally provided therewith or may be detachably assembled therewith, and may include a suction port (22) that applies negative pressure to a skin area formed by directly contacting the skin.

[0061] At this time, the suction header (20) may be provided in a funnel shape with a diameter that decreases as it goes forward.

[0062] The above suction header (20) includes a suction port (22) that is opened forward, and at least one communication hole (24) that is connected to a vacuum suction line (42) extending from the suction module (40) and through which a suction force, that is, negative pressure, is transmitted to the suction space (S) can be formed through the inside of the suction port (22).

[0063] The inner region of the suction header (20) corresponding to the above suction port (22) may include a transparent window (26) corresponding to the light source (32) of the light irradiation module (30) to transmit processing light such as laser light without loss and irradiate it toward the skin.

[0064] Accordingly, a suction space can be formed between the suction port in contact with the skin and the transparent wall corresponding to the light source, to which negative pressure is applied so as to raise the skin in contact with the suction port to a certain height.

[0065] The above light irradiation module (30) may include at least one light source (32) that directly and intensively irradiates laser light, which is a processing light generated when power is applied, to the skin that is raised by the suction force of the above suction module (40), as shown in FIG. 4.

[0066] The light source (32) provided in the above light irradiation module (30) may be an IPL (Intense Pulsed Light) laser light source or a flash lamp that performs a hair removal function by irradiating laser light with a wavelength band of 560 nm to 1100 nm to the raised skin when power is supplied, and necroticizing the hair follicles and the area around the hair follicles of the skin with laser light having high output energy, thereby removing hair.

[0067] The above light source (32) includes a plurality of LEDs that generate light having high output energy in a wavelength range of 560 nm to 1100 nm when power is supplied, and a substrate on which the plurality of LEDs are mounted can be installed on the inner surface of a sealed end of the receiver.

[0068] The above suction module (40) may include at least one suction source that generates suction force when power is applied so that negative pressure can be applied to the skin through the suction space (S) and is disposed inside the main body (10), as shown in FIGS. 2, 3, and 4.

[0069] The above suction module (40) is configured to generate negative pressure in the suction space (S) formed inside the suction port (22) of the suction header (20), and may be equipped with, for example, a pumping motor that can generate negative pressure by forcibly sucking in external air when power is applied.

[0070] A vacuum suction line (42) extending from the suction module (40) can be connected to a communication hole (24) formed through one or both sides of the inside of the suction port (22), and an exhaust line (not shown) extending from the suction module (40) can be connected to an exhaust hole formed through the outer surface of the main body.

[0071] The negative pressure control of this suction module (40) can be configured to be controlled by the above control unit.

[0072] At this time, the suction module (40) may be configured to control the intensity of the negative pressure by operating a button provided on the outside of the main body, and the suction module (40) may be configured to have variable output corresponding to the suction force.

[0073] The optical sensor (50) is at least one sensor member that detects and measures light obtained by being introduced into the interior through an optical path (55) provided at the end of the suction port (22) that is provided on the inside of the suction header (20) and comes into contact with the skin, as shown in FIGS. 1, 2, 3, and 4.

[0074] This optical sensor (50) may be equipped as a color sensor that detects the skin color of the skin area corresponding to the optical path (55) and converts the color brightness and skin tone, which are color information, into an electrical signal, which is a measurement value, or may be equipped as a light sensor that measures the amount of light obtained in the area corresponding to the optical path (55) and converts it into an electrical signal, which is a measurement value, according to the brightness of the light.

[0075] The above optical path (55) may be provided with an optical input end positioned at an exposed hole formed through the end of the suction port (22) that comes into contact with the skin, and the optical sensor (50) may be located at the rear end of the optical output end, and may be provided with an optical guide made of a light-transmitting resin material, or may be provided with an empty space extending from the exposed hole formed through the end of the suction port (22) that comes into contact with the skin to the optical sensor.

[0076] At this time, the optical sensors (50) may be arranged in pairs facing each other at the ends of the suction port (22) or may be arranged in pairs at equal intervals in the circumferential direction with the center of the suction port (22) as the center.

[0077] The end of the above suction port (22) may include at least one touch sensor (70) that generates a signal when in contact with the skin and transmits the generated contact signal to the control unit, as shown in FIGS. 1, 2, 3, 4, 5, and 6.

[0078] This touch sensor (70) generates a contact signal by making preliminary contact with the skin during the process of bringing the end of the suction port (22) close to the user's skin, and the contact signal can be transmitted to the control unit.

[0079] Based on the contact signal of the touch sensor (70), the control unit can control the light irradiation module (30) and the suction module (40), as well as the optical sensor (50) and the auxiliary optical sensor (60) provided as the color sensor or the illuminance sensor, to switch from a standby mode in which the power is completely cut off to a ready mode in which the standby power is supplied and the operation is in a standby state.

[0080] The control unit may be electrically connected to the light irradiation module (30) and the suction module (40) to transmit a control signal, and may be electrically connected to the color sensor or the light sensor constituting the optical sensor (50) to receive information such as a brightness value of skin color or a brightness value of light, and may be accommodated in the internal space of the main body (10) or the internal space of the suction header (20).

[0081] Such a control unit may be implemented by a processor, a central processing unit (CPU), a controller, an arithmetic logic unit, arithmetic logic circuit, a digital signal processing device, a microcomputer, an FPGA, a system on a chip (SoC), a programmable logic unit, a microprocessor, etc.

[0082] At this time, electrically connected in this specification may include not only being electrically connected by an electric line, but also being connected by a known wireless communication method.

[0083] Accordingly, the control unit according to the present embodiment may be configured to obtain information, which is a predetermined measurement value, from an optical sensor (50) or an auxiliary optical sensor (60) formed of the color sensor or the light sensor, and control the operation of the light irradiation module (30) and the operation of the suction module (40) based on the obtained information.

[0084] Meanwhile, when the optical sensor (50) is equipped as a color sensor, the color sensor is a sensor that detects the light obtained through the optical path (55) as color, measures the skin color and the brightness value of the detected skin color in real time, and transmits the information, which is the measured value, to the control unit.

[0085] These color sensors detect the three primary colors of light, R (red), G (green), and B (blue), and by receiving light with a photodiode and detecting RGB values, they can detect skin color, which is skin tone, and obtain the brightness value of the skin color.

[0086] For example, if the amount of light flowing in through the optical path (55) is large and bright, the resistance value related to the brightness of the color measured by the color sensor decreases, and if the amount of light flowing in through the optical path (55) is small and relatively dark, the resistance value related to the brightness of the color measured by the color sensor increases, so that the brightness value of the color can be obtained based on the variable resistance value.

[0087] In addition, the light source that provides the brightness of light to be detected and measured by the color sensor may be natural light such as sunlight if the user uses the skin beauty treatment device outdoors, and may be artificial light such as indoor lighting if the user uses the skin beauty treatment device indoors.

[0088] As shown in Fig. 7a, in the process of contacting the skin having a substantially curved surface with the end of the suction port (22), a gap (G) is formed between the end of the suction port (22) and the skin, and the input end of the optical path (55) may be completely exposed to the outside at the end of the suction port (22) or may be partially exposed to the outside by partially contacting the skin.

[0089] In this case, natural light or artificial light can be detected by entering the optical sensor, which is a color sensor, through the input terminal of the optical path (55) that is fully or partially exposed.

[0090] The brightness value of the skin color detected and measured by the color sensor is set to "10", which is the maximum bright exposure state, or to a measurement value between "1" and "9", which is lower than the maximum value, depending on the amount of light obtained through the optical path, and based on this, the control unit can determine that the entire edge of the end of the suction port (22) is in a non-contact state where it does not completely contact the skin, or in an incompletely adhered state where it is not incompletely adhered.

[0091] On the other hand, as shown in Fig. 7b, the input end of the optical path (55) can be completely covered and adhered to the skin while the end of the suction port (22) is in contact with the skin without forming a gap (G).

[0092] In this case, natural light or artificial light does not enter the optical path (55) covered by the skin at all and is not detected by the color sensor, which is an optical sensor.

[0093] The brightness value of the skin color measured by the color sensor is set to "0", and based on this, the control unit can determine that the optical path (55) is in a dark state with no light inflow at all, and that the entire edge of the end of the suction port (22) is in complete contact with the skin.

[0094] Accordingly, when the brightness value of the skin color measured by the color sensor equipped with the optical sensor is measured as the remaining brightness value excluding “0”, the control unit determines that the entire edge of the end of the suction port (22) is incompletely in contact with or not in contact with the skin, and can control the light irradiation module (30) and the suction module (40) to be maintained in a standby mode.

[0095] On the other hand, if the brightness value of the skin color measured by the color sensor is measured as “0”, the control unit can determine that the end of the suction port (22) is in close contact with the skin and control the operation of the suction module (40) to start applying negative pressure to the skin to cause it to rise.

[0096] Meanwhile, the information, which is a measurement value of skin color measured by the color sensor, can be set by numerically distinguishing the skin color, which is a skin tone, based on the Fitzpatrick skin classification table that determines the brightness of the skin according to the skin tone and brightness.

[0097] That is, as shown in Figure 8, the Fitzpatrick skin classification table divides skin color into six types according to skin color and skin reaction to sunlight, with very light skin color as type 1, light skin color as type 2, light to medium skin color as type 3, medium skin color as type 4, dark skin color as type 5, and very dark skin color as type 6.

[0098] Accordingly, the user's skin color detected and measured by the optical sensor (50) equipped with the color sensor and the six skin colors classified in the Fitzpatrick skin classification table are compared and determined by the control unit, thereby selecting and determining the user's skin color as one of types 1 to 6.

[0099] At this time, if the control unit determines that the user's skin color measured by the color sensor is a dark skin color type 5 or a very dark skin color type 6, the intensity of the hair removal laser light output from the light irradiation module (30) and irradiated toward the skin can be reduced or the light irradiation can be stopped.

[0100] This is because hair removal is based on the absorption of light energy by the melanin chromophores in the skin, so the darker the skin color, such as type 5 or 6, the higher the optical light energy absorption rate, which can cause skin damage from laser light.

[0101] In addition, when the optical sensor (50) is equipped as a light sensor, the light sensor is a sensor member that detects the amount of light obtained through the optical path (55) to measure the brightness of light, which is internal illuminance, in real time and transmits the information, which is the measured value, to the control unit.

[0102] This light sensor is a sensor that measures the brightness of light, which is the amount of light detected. The resistance value changes depending on the amount of light obtained through the optical path, and the brightness value of the light can be obtained through this.

[0103] For example, if the amount of light flowing into the light path (55) is large, the resistance value related to the brightness of light measured by the light sensor decreases, and if the amount of light flowing into the light path (55) is large, the resistance value related to the brightness of light measured by the light sensor increases, and thus the brightness value of light can be obtained based on the variable resistance value.

[0104] In addition, the light source that provides the brightness of light to be measured by the above light sensor may be natural light such as sunlight if the user uses the skin beauty treatment device outdoors, and may be artificial light such as indoor lighting if the user uses the skin beauty treatment device indoors.

[0105] As shown in Fig. 7a, in the process of contacting the skin having an approximately curved surface with the end of the suction port (22), a gap (G) is formed between the end of the suction port (22) and the skin, and the input end of the optical path (55) may be completely exposed to the outside at the end of the suction port (22) or may be partially exposed to the outside by partially contacting the skin.

[0106] In this case, natural light or artificial light can be detected by entering the light sensor, which is an optical sensor, through the input terminal of the light path (55) that is fully or partially exposed.

[0107] The brightness value of light detected and measured by the above light sensor is set to "10", which is the maximum bright exposure state, or is set to a measurement value between "1" and "9", which is lower than the maximum value, depending on the amount of light obtained through the optical path (55), and based on this, the control unit can determine that the entire edge of the end of the suction port (22) is in a non-contact state where it does not completely contact the skin, or in an incompletely adhered state where it is not incompletely adhered.

[0108] On the other hand, as shown in Fig. 7b, the input end of the optical path (55) can be completely covered and adhered to the skin while the end of the suction port (22) is in contact with the skin without forming a gap (G).

[0109] In this case, natural light or artificial light does not enter the light path (55) covered by the skin at all and is not detected by the light sensor, which is an optical sensor.

[0110] The brightness value of the light measured by the above light sensor is set to “0”, and based on this, the control unit can determine that the light path (55) is in a dark state with no light inflow at all, and that the entire edge of the end of the suction port (22) is in complete contact with the skin.

[0111] Accordingly, when the brightness value of light measured by the light sensor equipped with the optical sensor is measured as a brightness value excluding “0”, the control unit determines that the entire edge of the end of the suction port (22) is incompletely in contact with or not in contact with the skin, and can control the light irradiation module (30) and the suction module (40) to be maintained in a standby mode.

[0112] On the other hand, if the brightness value of the skin color measured by the light sensor is measured as “0”, the control unit can determine that the end of the suction port (22) is in close contact with the skin and control the operation of the suction module (40) to start applying negative pressure to the skin to cause it to rise.

[0113] Meanwhile, as shown in FIGS. 5 and 6, it may include at least one auxiliary optical sensor (60) provided on the inner wall of the suction port (22) corresponding to the suction space (S) formed inside the suction port (22).

[0114] Here, the auxiliary optical sensor (60) may be selectively provided as one of a color sensor that determines the skin color and measures the brightness of the skin color based on the light entering the suction space (S) and a light sensor that measures the brightness of the light entering the suction space (S).

[0115] The above optical sensor (50) and the auxiliary optical sensor (60) may be equipped with different types of sensors or may be equipped with the same type of sensors.

[0116] In addition, the auxiliary optical sensor (60) may be provided as an independent sensor member that detects and measures light flowing into the suction space (S) without installing an optical sensor (50) that exposes the input end of the optical path at the end of the suction port.

[0117] FIG. 9a, FIG. 9b and FIG. 9c are operation state diagrams showing adhesion, suction and exhaust in a skin beauty treatment device according to an embodiment of the present invention, and FIG. 10 is an operation flow diagram of a skin beauty treatment device according to an embodiment of the present invention.

[0118] First, in order to perform a cosmetic procedure in which the skin to be removed is raised by negative pressure using a skin cosmetic procedure device according to an embodiment of the present invention and then the hair on the raised skin is removed by laser light, the suction header (20) is first brought into contact with the skin to be removed.

[0119] In this state, when the end of the suction port (22) is brought close to the skin so that it comes into contact with the skin, the touch sensor (70) provided at the end of the suction header makes contact first and generates a contact signal, and the contact signal of the touch sensor is transmitted to the control unit.

[0120] At this time, by the contact signal of the touch sensor, the light irradiation module (30) and the suction module (40) are supplied with reserve power and switched to a ready mode, and the optical sensor (50) and the auxiliary optical sensor (60) equipped with either the color sensor or the illuminance sensor are also supplied with reserve power and switched to a ready mode to measure skin color and the brightness of skin color or the brightness of light.

[0121] This preparation mode can be performed by pressing the start button provided on the main body.

[0122] And, when the end of the suction port (22) is in contact with the skin, the optical sensor (50) and the auxiliary optical sensor (60) consisting of the color sensor or the light sensor can measure the brightness value of the skin color related to the light detected by the light path (55) or the light entering the suction space (S), or can measure the brightness value of the light.

[0123] That is, as illustrated in FIG. 7a, when light is introduced through the input terminal of the optical path exposed to the end of the suction port (22) or when light is introduced into the suction space, the brightness value of the skin color or the brightness value of the light measured by the optical sensor (50) and the auxiliary optical sensor (60) equipped with either the color sensor or the illuminance sensor is measured as an arbitrary measurement value corresponding to a non-contact state of "10" and an incomplete contact state of "1" to "9", excluding the dark state of "0", and is transmitted to the control unit.

[0124] On the other hand, when the input end of the optical path exposed to the end of the suction port (22) is completely covered with the skin or the suction space is completely closed, as shown in FIGS. 7b and 9a, a gap (G) is not formed between the end of the suction port (22) and the skin, and external light does not enter at all through the input end of the optical path (55) or the suction space, so the brightness value of the skin color or the brightness value of the light measured by the optical sensor (50) or the auxiliary optical sensor equipped with either the color sensor or the illuminance sensor is measured as a measurement value of "0" in the dark state and transmitted to the control unit.

[0125] In this case, the control unit can determine, based on the information that is the measurement value transmitted from the optical sensor (50) and the auxiliary optical sensor (60), that the end of the suction port (22) is in an incomplete contact state in which it partially contacts the skin, or that the end of the suction port (22) is in a completely close contact state in which it evenly contacts the skin as a whole.

[0126] When the control unit determines that the contact state is incomplete, the suction module (40) maintains a standby state, whereas when the control unit determines that the contact state is complete, power is applied to the suction module (40) to generate the suction force by applying negative pressure to the suction space (S) that can raise the skin in contact with the end of the suction port.

[0127] Accordingly, based on the brightness value of the skin color or the brightness value of light in the suction space measured by the optical sensor (50) and the auxiliary optical sensor (60) along with the touch sensor and the contact signal, it is possible to accurately confirm the state of close contact in which the end of the suction port is in complete contact with the skin, which is the treatment area to be hair removed, and at the same time, the operation of the suction module (40) can be performed without loss of suction power.

[0128] As shown in Fig. 9b, when the suction module (40) is operated while the end of the suction port (22) is in complete contact with the skin and negative pressure is applied to the suction space (S), the skin corresponding to the suction space (S) can be raised convexly to a certain height toward the light irradiation module (30).

[0129] Continuously, the laser light generated during the operation of the light irradiation module (30) is irradiated to the skin side raised to a certain height by the negative pressure applied to the suction space (S), thereby performing hair removal using the laser light.

[0130] At this time, the skin color is determined as one of six types based on the measured value of the brightness value of the skin color measured by the optical sensor (50) or auxiliary optical sensor (60) including the color sensor, and then the intensity of the laser light irradiated toward the skin measured by the light irradiation module (30) can be controlled.

[0131] That is, when the skin color measured by the color sensor is determined by the control unit to be type 1 to 4 out of types 1 to 6, laser light with a preset light intensity output controlled to match a very bright skin color, a bright skin color, a medium skin color in a bright skin color, and a medium skin color is irradiated toward the raised skin, or laser light with a preset uniform light intensity output controlled to match the raised skin, thereby performing hair removal using laser light without concern for skin damage or skin burns.

[0132] And, when the upper part of the skin raised by the negative pressure of the suction module (40) becomes wide and flat, it is preferable to maintain the negative pressure applied from the suction module (40) for a certain period of time during which hair removal is performed by the laser light of the light irradiation module (30).

[0133] On the other hand, if the brightness value of the skin color measured by the color sensor is determined by the control unit to be type 5 or 6 among types 1 to 6, power supply to the light irradiation module may not be provided because irradiating laser light to skin with a dark skin color or a very dark skin color may cause skin damage and skin burns.

[0134] At this time, the measurement time of the color sensor that measures the skin color of the skin area to be removed may be to measure the skin color of the skin area exposed to external light such as natural light or artificial light before the end of the suction port (22) comes into contact with the skin, or to measure the skin color of the skin area exposed to light from an unillustrated lighting light source in a dark state where the end of the suction port is in complete contact with the skin.

[0135] Finally, as shown in Fig. 9c, when the laser light of the light irradiation module (30) is irradiated to the treatment area of ​​the skin raised by the negative pressure of the suction module (40) and hair removal is completed for the treatment area, the negative pressure of the suction space (S) can be eliminated by selectively opening the exhaust port provided in the main body (10) so as to be connected to the exhaust line of the suction module (40), thereby returning the skin raised by the negative pressure to its original state and simultaneously completing all hair removal processes.

[0136] Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this will also be considered to fall within the spirit of the present invention.

[0137] <Explanation of symbols>

[0138] 10: Body 20: Suction Header

[0139] 22: Intake port 24: Flue port

[0140] 30: Light irradiation module 32: Light source

[0141] 40: Suction module 42: Vacuum suction line

[0142] 50: Optical sensor 60: Auxiliary optical sensor

[0143] 70: Touch sensor S: Suction space

Claims

1. Main body; A suction header having a suction port that comes into contact with the skin at an end protruding outwardly from the main body; A light irradiation module that irradiates light generated when power is supplied to the user's skin side that comes into contact with the above suction port; A suction module provided inside the main body, which applies negative pressure toward the suction port when power is supplied to elevate the treatment area of ​​the skin that comes into contact with the suction port; At least one optical sensor that detects and measures light flowing into the interior through an optical path formed at the end of the suction port that comes into contact with the skin; and Including a control unit electrically connected to the above light irradiation module and the above suction module, respectively; A skin beauty treatment device, wherein the control unit selectively controls the operating timing of the suction module by judging the contact state between the suction port and the skin based on the measurement value detected by the optical sensor.

2. In paragraph 1, The above optical sensor is a skin beauty treatment device, which is a color sensor that detects the skin color of the skin area related to the light introduced through the above optical path and converts the color information into an electrical signal.

3. In paragraph 1, A skin beauty treatment device, wherein the optical sensor is a light sensor that detects the brightness of light introduced through the optical path and converts it into an electrical signal according to the amount of light detected.

4. In paragraph 1, It includes at least one auxiliary optical sensor provided on the inner wall of the suction port corresponding to the suction space formed inside the suction port, A skin beauty treatment device, wherein the auxiliary optical sensor is one of a color sensor that detects the skin color of the skin area related to the light entering the suction space and converts the color information into an electrical signal, and a light sensor that detects the brightness of the light entering the suction space and converts it into an electrical signal according to the amount of the detected light.

5. In paragraph 2 or paragraph 4, A skin beauty treatment device, wherein the control unit controls the output intensity of the light irradiation module based on the skin color detected and measured by the color sensor.

6. In paragraph 1, A skin beauty treatment device, wherein the suction port includes at least one touch sensor that generates a contact signal when in contact with the skin at an end and transmits the generated contact signal to the control unit.

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