JP2020162792A - Light irradiation type cosmetic apparatus - Google Patents

Abstract

To provide a light irradiation type cosmetic apparatus that is improved in operability.SOLUTION: A hair growth inhibition apparatus 10 includes: an irradiation part 50 for irradiating an object (skin S) with flash light; and a cooling part 80 disposed around a light emission surface 110 that emits flash light in the irradiation part 50 to cool the skin S. A cooling surface 84 of the cooling part 80 is disposed so as to be inclined relative to the light emission surface 110.SELECTED DRAWING: Figure 4

Description

The present invention relates to a light irradiation type beauty device such as a hair suppressor.

Conventionally, as a light irradiation type beauty device, a hair suppressing device that obtains a hair suppressing effect by irradiating body hair with light is known (see, for example, Patent Document 1). The head portion of this light irradiation type beauty device is equipped with an irradiation portion that irradiates light and a cooling portion for cooling the skin.

International Publication No. 2015/098427

By the way, if the irradiation unit and the cooling unit are mounted on the head unit, the head unit becomes large and it becomes difficult for the user to align the irradiation unit in a narrow area such as under the nose, and operability Is being impaired.

Therefore, an object of the present invention is to provide a light irradiation type beauty device with improved operability.

In order to achieve the above object, the light irradiation type beauty device according to one aspect of the present invention is arranged around an irradiation unit that irradiates an object with a flashlight and a light emitting surface on which the flashlight emits light. It is provided with a cooling unit for cooling the object, and the cooling surface of the cooling unit is arranged in an inclined posture with respect to the light emitting surface so that the boundary portion between the cooling surface and the light emitting surface is convex.

According to the present invention, it is possible to provide a light irradiation type beauty device with improved operability.

FIG. 1 is a plan view showing a schematic configuration of a hair suppressing device according to an embodiment. FIG. 2 is a side view showing a schematic configuration of the hair suppressing device according to the embodiment. FIG. 3 is a plan view showing a schematic configuration of the head portion according to the embodiment. FIG. 4 is a cross-sectional view showing the internal configuration of the head portion according to the embodiment. FIG. 5 is a cross-sectional view showing the internal configuration of the head portion according to the embodiment. FIG. 6 is a block diagram showing a control configuration of the hair suppressing device according to the embodiment. FIG. 7 is a graph showing the surface temperature of the skin when 5 seconds have passed after the skin was cooled by the cooling unit according to the embodiment for a predetermined cooling time. FIG. 8 is a flowchart showing a flow of a control method of the hair suppressing device according to the present embodiment. FIG. 9 is a cross-sectional view showing a schematic configuration of the head portion according to the first modification. FIG. 10 is a cross-sectional view showing a schematic configuration of the head portion according to the first modification. FIG. 11 is a cross-sectional view showing a schematic configuration of the head portion according to the modified example 2.

Hereinafter, the light irradiation type beauty device according to the embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that all of the embodiments described below show a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement and connection forms of the components, steps and the order of steps shown in the following embodiments are examples, and are not intended to limit the present invention. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components.

Further, each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same components are designated by the same reference numerals.

[Constitution]
First, the hair suppressing device 10 as an example of the light irradiation type beauty device according to the embodiment will be described. FIG. 1 is a plan view showing a schematic configuration of the hair suppressing device 10 according to the embodiment. FIG. 2 is a side view showing a schematic configuration of the hair suppressing device 10 according to the embodiment.

As shown in FIGS. 1 and 2, the hair suppressing device 10 includes a long housing 21 which is an exterior body, and one end of the housing 21 is attached to the skin S (see FIG. 4 and the like). A head portion 30 for irradiating a flashlight is provided. At one end of the housing 21, a plurality of ventilation holes 32 for communicating the ventilation passage of the head portion 30 with the outside are provided.

The portion of the housing 21 opposite to the head portion 30 is a grasping portion 40 grasped by the user, and is formed thinner than the head portion 30. The housing 21 is formed in a curved shape from the head portion 30 to the grasping portion 40. The grasping unit 40 is provided with a power button 41 for switching the power ON / OFF, a light emitting button 42 for causing a flashlight to emit light, and a lighting unit 43 that lights when the power is turned on and turns off when the power is turned off. There is. Further, a power supply terminal 49 to which a commercial power supply is connected via a cable is provided at the lower end portion of the grasping unit 40.

FIG. 3 is a plan view showing a schematic configuration of the head portion 30 according to the embodiment. 4 and 5 are cross-sectional views showing an internal configuration of the head portion 30 according to the embodiment. FIG. 4 shows a state in which the light emitting surface 110 of the head portion 30 is in contact with the user's skin S. FIG. 5 shows a state in which the cooling surface 84 of the head portion 30 is in contact with the user's skin S.

As shown in FIGS. 3 to 5, the head unit 30 includes an irradiation unit 50, a temperature detection unit 70, a cooling unit 80, a contact sensor 88, and a fan 31.

The irradiation unit 50 irradiates the skin S, which is an object, with a flashlight (hereinafter, may be referred to as light). Specifically, the irradiation unit 50 irradiates the flashlight toward the light emitting surface 110 provided at one end of the housing 21 to emit light to the object (skin S) facing the light emitting surface 110. Irradiate. The light emitting surface 110 is a light emitting region where the flashlight in the irradiation unit 50 emits light. The light emitting surface 110 is formed in a long rectangular shape in a plan view. The light emitting surface 110 is a plane orthogonal to the optical axis of the light source 51 described later. In the present embodiment, the case where the light emitting surface 110 is an opening is illustrated, but the light emitting surface may be closed by a light transmitting optical member. This optical member may be a filter 53 described later, or may be an optical member separate from the filter.

The irradiation unit 50 includes a light source 51, a reflection unit 52, and a filter 53. The light source 51 is, for example, a linear tubular light source capable of emitting a flash, and is, for example, a xenon lamp. The light source 51 is arranged near the center of the light emitting surface 110 in the lateral direction so that the longitudinal direction of the light source 51 is parallel to the longitudinal direction of the light emitting surface 110.

The reflection unit 52 is a reflector that reflects a part of the light emitted by the light source 51 toward the light emitting surface 110. The reflecting portion 52 has a concave space 521 whose light emitting surface 110 side is open, and a light source 51 is arranged in the concave space 521. The concave curved surface forming the concave space 521 in the reflecting portion 52 is a reflecting surface.

The filter 53 is an optical filter that covers the open portion of the concave space 521 and adjusts the wavelength of the light emitted from the light source 51. The filter 53 is arranged parallel to the light emitting surface 110. The light transmitted through the filter 53 becomes light in a wavelength band capable of exerting a hair-suppressing effect. The wavelength band capable of exerting the hair-suppressing effect is a wavelength band of 500 nm or more and 1200 nm or less that acts on the melanin of the hair, and a wavelength band of 800 nm or more and 850 nm or less particularly contributes to the hair-suppressing effect. The ratio A / B of the integrated Eg (A) of light irradiation in the wavelength band of 800 nm or more and 850 nm or less and the integrated Eg (B) of light irradiation in the wavelength band of 500 nm or more and 600 nm or less is A / B ≧ 1.2 or more. And the hair-suppressing effect can be obtained more effectively.

The temperature detection unit 70 detects the surface temperature of the skin S. Specifically, the temperature detection unit 70 includes one or more (four in the present embodiment) contact-type temperature sensors 71. Examples of the contact type temperature sensor 71 include a contact type thermistor, a thermocouple, and a resistance temperature detector. The four temperature sensors 71 are arranged around the light emitting surface 110. Of the four temperature sensors 71, the pair of temperature sensors 71 are arranged so as to sandwich the light emitting surface 110 in the lateral direction of the light emitting surface 110. Further, the other pair of temperature sensors 71 are arranged so as to sandwich the light emitting surface 110 in the longitudinal direction of the light emitting surface 110.

The surfaces of the plurality of temperature sensors 71 and the peripheral edges of the light emitting surface 110 in the housing 21 are substantially flush with each other. As a result, when the light emitting surface 110 is opposed to the skin S, the surfaces of the plurality of temperature sensors 71 and the peripheral edge portion of the light emitting surface 110 in the housing 21 can be brought into close contact with the skin S. If the surface of the temperature sensor 71 is in close contact with the skin S, the accuracy of temperature detection can be improved. If the peripheral edge of the light emitting surface 110 in the housing 21 is in close contact with the skin S, leakage of light can be suppressed.

Here, before and after light irradiation, it is desired to detect the temperature of the light receiving region on the skin S. The light receiving region is a region of the skin S facing the light emitting surface 110, and is a region where the treatment is performed. That is, if the temperature detection unit is arranged in the light emitting surface 110, the temperature of the light receiving region can be reliably detected, but in that case, the temperature detection unit blocks the light. If the temperature detection unit 70 is arranged around the light emitting surface 110 as in the present embodiment, the temperature detection unit 70 can detect the temperature in the vicinity of the light receiving region without blocking the light.

The cooling unit 80 is arranged around the light emitting surface 110 and cools the skin S. Specifically, the cooling unit 80 is arranged at a position where the temperature sensor 71 on the side closer to the grasping unit 40 is sandwiched together with the light emitting surface 110 among the pair of temperature sensors 71 arranged in the lateral direction of the light emitting surface 110. .. As a result, the cooling unit 80 is aligned with the light emitting surface 110 in the lateral direction of the light emitting surface 110. Further, the cooling unit 80 is arranged between the light emitting surface 110 and the grasping unit 40 in the head unit 30. As described above, the housing 21 is curved from the head portion 30 to the grasping portion 40. The cooling unit 80 is arranged between the light emitting surface 110 and the grasping unit 40 by being arranged on the curved concave portion side of the housing 21 in the head unit 30.

The cooling unit 80 includes a thermoelectric element 81, a heat storage member 82, and a heat exhaust mechanism 83. The thermoelectric element 81 is, for example, a Peltier element having a cooling function. A heat exhaust mechanism 83 is provided so as to come into contact with the heat generating surface of the thermoelectric element 81, and a heat storage member 82 is laminated on the heat absorbing surface of the thermoelectric element 81.

The heat storage member 82 is, for example, a flat plate made of metal or ceramic having a heat storage property. The heat storage member 82 is directly overlapped with the entire heat absorbing surface of the thermoelectric element 81. The surface of the heat storage member 82 opposite to the thermoelectric element 81 is a flat cooling surface 84 that comes into contact with the skin S and cools the skin S. The cooling surface 84 is exposed from the head portion 30 and is arranged in an inclined posture with respect to the light emitting surface 110. Specifically, as shown in FIGS. 4 and 5, when the head portion 30 is viewed in a cross-sectional view orthogonal to the light emitting surface 110, the cooling surface 84 is tilted at an angle α with respect to the light emitting surface 110. ing. The angle α is an angle on the narrow angle side formed by the cooling surface 84 and the light emitting surface 110. In other words, the angle formed by the cooling surface 84 and the light emitting surface 110 is 180 degrees − angle α. Therefore, as shown in FIG. 4, when the light emitting surface 110 is in contact with the skin S, the cooling surface 84 is separated from the skin S. That is, the area that hits the skin S during light irradiation can be reduced. The posture of the hair suppressing device 10 at the time of light irradiation is referred to as a light irradiation posture.

On the other hand, as shown in FIG. 5, when the cooling surface 84 is in contact with the skin S, the light emitting surface 110 is separated from the skin S. That is, the area that hits the skin S can be reduced even during cooling. The posture of the hair suppressing device 10 at the time of cooling is referred to as a cooling posture.

Further, the angle α may be less than 90 degrees, but if it is 60 degrees or less, the shape of the tip of the head portion 30 becomes smaller, so that the operability is further improved.

As shown in FIG. 3, the cooling surface 84 has a long rectangular shape in a plan view, and is arranged so that its longitudinal direction is parallel to the longitudinal direction of the light emitting surface 110. The area of the cooling surface 84 is larger than the area of the light emitting surface 110. As a result, the cooling region of the skin S cooled by the cooling surface 84 becomes larger than that of the light emitting surface 110. Therefore, the light emitting surface 110 can be accommodated in the cooling region of the skin S.

Further, as shown in FIGS. 3 and 4, in the housing 21, a convex corner portion 89 according to a 180 degree − angle α is provided at a boundary portion between the cooling surface 84 and the light emitting surface 110. The apex of the corner portion 89 extends parallel to the longitudinal direction of the cooling surface 84 and the light emitting surface 110. By abutting the corner portion 89 on the skin S and using it as a fulcrum, it is possible to easily switch between a state in which the light emitting surface 110 is overlapped on the skin S and a state in which the cooling surface 84 is overlapped on the skin S.

The heat exhaust mechanism 83 is a heat sink having a plurality of fins, and the base of the heat sink is provided so as to come into contact with the entire heat generating surface of the thermoelectric element 81. The heat exhaust mechanism 83 dissipates heat generated from the heat generating surface of the thermoelectric element 81 to the ventilation path in the housing 21.

The contact sensor 88 detects contact with the skin S. The contact sensor 88 is arranged around the cooling surface 84. Specifically, the contact sensor 88 is arranged around the cooling surface 84, on the side opposite to the light emitting surface 110, near the center of the light emitting surface 110 in the longitudinal direction.

The fan 31 is a portion for cooling the heat exhaust mechanism 83, and is arranged in a ventilation path in the head portion 30. The exhaust gas from the fan 31 is discharged to the outside of the housing 21 from the plurality of ventilation holes 32 through the ventilation passages.

Next, the control configuration of the hair suppressing device 10 will be described. FIG. 6 is a block diagram showing a control configuration of the hair suppressing device 10 according to the embodiment.

As shown in FIG. 6, the control unit 15 of the hair suppression device 10 is a microcomputer, and is a first switch element 461, a second switch element 462, a lighting unit 43, a capacitor 45, a fan 31, a light source 51, and a temperature detection unit 70. , The contact sensor 88 and the cooling unit 80 are electrically connected.

The control unit 15 is mounted on a circuit board housed in the housing 21. Further, a first switch element 461 and a second switch element 462 are mounted on the circuit board. The first switch element 461 is for power ON / OFF, and when the power button 41 is pressed, a control signal for switching ON / OFF of the power supply from the commercial power source is output to the control unit 15. The second switch element 462 is a switch element for causing the irradiation unit 50 to emit light, and when the light emitting button 42 is pressed, a control signal (light emitting signal) for causing the irradiation unit 50 to emit light is output to the control unit 15. To do. The capacitor 45 is a capacitor housed in the housing 21 and stores electric power from a commercial power source input through the power supply terminal 49 as an electric charge for causing the irradiation unit 50 to emit light. The duty ratio of the electric power output from the capacitor 45 to the irradiation unit 50 is controlled by the control unit 15.

The control unit 15 controls the light source 51, the lighting unit 43, the capacitor 45, and the fan 31 based on the control signal output from the first switch element 461. Specifically, when the power supply button 41 is operated and a control signal is input from the first switch element 461 when the power supply is turned off, the control unit 15 supplies power from the commercial power supply to each unit. On the other hand, when the power supply button 41 is operated and a control signal is input from the first switch element 461, the control unit 15 stops the supply of electric power from the commercial power supply. The control unit 15 turns on the lighting unit 43 when the power is turned on, and turns off the lighting unit 43 when the power is turned off. Further, the control unit 15 drives the fan 31 when the power is turned on, and stops the fan 31 when the power is turned off. That is, when the power is turned on, the irradiation unit 50 is cooled by the fan 31.

The control unit 15 drives the cooling unit 80 when the power is turned on, and stops the cooling unit 80 when the power is turned off. When the contact sensor 88 detects contact with the skin S when the power is turned on, the control unit 15 assumes that the cooling surface 84 of the cooling unit 80 is in contact with the skin S, and the cooling time for the skin S. To measure. That is, the control unit 15 measures the cooling time starting from the timing when the contact sensor 88 starts detecting the contact with the skin S.

The control unit 15 controls the thermoelectric element 81 of the cooling unit 80 based on the cooling time. Specifically, the control unit 15 sets the surface temperature of the cooling surface 84 of the thermoelectric element 81 to −10 ° C. or higher and 0 ° C. or lower until the cooling time is 8 seconds or longer.

Here, the higher the temperature of the skin S before the light irradiation, the more easily the skin S is damaged after the light irradiation. In particular, when a portion (chin, cheek, etc.) where thick hair grows at high density such as a beard is irradiated with light in the above-mentioned wavelength band, the skin S becomes hot and is more susceptible to damage. The optimum temperature of the skin S at the time of light irradiation differs depending on the irradiation Eg. For example, when the irradiation Eg ≧ 8J, if the surface temperature of the skin S is 25 ° C. or higher, there is a high possibility that the skin S will be damaged. Therefore, it is necessary to keep the surface of the skin S at 25 ° C. or lower before light irradiation. When considering the safety margin, the surface temperature of the skin S is set to a temperature lower than 25 ° C. Specifically, the surface temperature of the skin S before light irradiation is lowered to, for example, 15 ° C. More preferably, the surface temperature of the skin S is lower than 13 ° C. As a result, it is possible to alleviate the pain felt by light irradiation for a person with a high beard density.

FIG. 7 is a graph showing the surface temperature of the skin S when 5 seconds have passed after the skin S was cooled by the cooling unit 80 according to the embodiment for a predetermined cooling time. FIG. 7 shows a case where the temperature of the cooling surface 84 at the time of cooling is −10 ° C., −5 ° C., and 0 ° C., and a case where the cooling surface is cooled with a cooling agent. Here, as a result of an experiment with a plurality of people, it can be said that the operation from applying the cooling surface 84 to the predetermined position of the skin S to applying the light emitting surface 110 to the portion can be performed within about 5 seconds. all right. Therefore, the surface temperature of the skin S 5 seconds after the cooling is stopped is lower than 15 ° C., more preferably lower than 13 ° C. as described above, which ensures the damage of the treatment to the skin S. It is required to suppress it.

As shown in FIG. 7, regardless of whether the temperature of the cooling surface 84 during cooling is −10 ° C., −5 ° C., or 0 ° C., if the skin S is cooled for 8 seconds or longer, 5 seconds from the cooling stop. The surface temperature of the skin S after the lapse can be made lower than 15 ° C. Examples of the thermoelectric element 81 satisfying such conditions include a Peltier element having a maximum heat quantity of 5 W or more and less than 20 W.

By the way, if the skin S is cooled at a temperature lower than −10 ° C. even if the cooling time is less than 8 seconds, the possibility of frostbite of the skin S increases. Therefore, the control unit 15 sets the surface temperature of the cooling surface 84 of the thermoelectric element 81 to −10 ° C. or higher.

Further, when the cooling time has passed 8 seconds, the control unit 15 notifies the user that the skin S has been sufficiently cooled by making the lighting pattern of the lighting unit 43 different from the normal time (cooling completion notification). ), And promote the transition from the cooling posture to the light irradiation posture.

Further, the control unit 15 monitors the temperature detected by the four temperature sensors 71 of the temperature detection unit 70 when the power is turned on, and the detection temperature of at least one temperature sensor 71 is equal to or higher than a predetermined value (15 ° C.). In the case of, the irradiation of the light of the irradiation unit 50 is prohibited. During this prohibition period, the control unit 15 does not accept even if a light emission signal is input from the second switch element 462. In this case, the control unit 15 notifies the user that the irradiation of light is prohibited by making the lighting pattern of the lighting unit 43 different from the normal time and the cooling completion notification.

On the other hand, when the detection temperature of each of the four temperature sensors 71 is less than a predetermined value, the control unit 15 permits the irradiation of the light of the irradiation unit 50. During this permission period, the control unit 15 receives the light emission signal input from the second switch element 462 and causes the light source 51 to emit light.

[Control method]
Next, a method of controlling the hair suppressing device 10 will be described. FIG. 8 is a flowchart showing a flow of a control method of the hair suppressing device 10 according to the present embodiment. This control method shows the flow after the power is turned on.

First, the user superimposes the cooling surface 84 on the specific portion (treatment area) of the skin S while grasping the grasping portion 40 of the hair suppressing device 10, and puts the hair suppressing device 10 in the cooling posture (see FIG. 5). ). As described above, in the cooling posture, since the light emitting surface 110 is separated from the skin S, only the cooling surface 84 needs to be overlapped with the treatment area, and the alignment is easy.

At this time, when the contact sensor 88 detects the contact with the skin S, the control unit 15 measures the cooling time (step S1). When the power is turned on, the cooling unit 80 is driven under the control of the control unit 15, so that the treatment area of the skin S is cooled. The control unit 15 continues driving the cooling unit 80 until the power is turned off. The control unit 15 may drive the cooling unit 80 only when the contact sensor 88 detects contact with the skin S.

In step S2, the control unit 15 determines whether or not the cooling time has elapsed, and if it has not elapsed, the control unit 15 maintains that state, and if it has elapsed, the process proceeds to step S3.

In step S3, the control unit 15 controls the lighting unit 43 to light the lighting unit 43 in the lighting pattern of the cooling completion notification. As a result, the user switches the hair suppressing device 10 from the cooling posture to the light irradiation posture.

Here, the switching operation will be described. The user switches the hair suppressing device 10 from the cooling posture to the light irradiation posture by changing the wrist with the corner portion 89 of the head portion 30 as a fulcrum while grasping the grasping portion 40. The light emitting surface 110 is arranged in the head portion 30 at a position farther from the grasping portion 40 than the cooling surface 84. Therefore, if the user changes his / her wrist in the direction of pulling the head portion 30, the light emitting surface 110 can be overlapped with the treatment area (cooling area) of the skin S, and the alignment can be smoothly performed. As a result, the hair suppressing device 10 is switched to the light irradiation posture.

In step S4, the control unit 15 determines whether or not the detection temperatures of the four temperature sensors 71 have a detection temperature equal to or higher than a predetermined value. The control unit 15 proceeds to step S5 when the detected temperature of at least one temperature sensor 71 is equal to or higher than a predetermined value, and proceeds to step S7 when the detected temperature of each of the temperature sensors 71 is less than a predetermined value. To do.

In step S5, the control unit 15 prohibits the irradiation of the irradiation unit 50 with light. During this prohibition period, the control unit 15 does not accept even if a light emission signal is input from the second switch element 462. That is, since the light from the irradiation unit 50 is not applied to the heated skin S, damage to the skin S can be prevented.

In step S6, the control unit 15 controls the lighting unit 43 to light the lighting unit 43 in a lighting pattern different from the normal lighting pattern. As a result, the user is notified of the prohibition of irradiation. By visually recognizing the notification of the lighting unit 43 directly or through a mirror, the user grasps that the current period is the prohibited period, that is, the temperature of the skin S is higher than the predetermined value. The user restarts the cooling of the skin S by the cooling unit 80 by switching the hair suppressing device 10 to the cooling posture again. As a result, the control unit 15 shifts to step S1.

In step S7, since the detection temperature of each temperature sensor 71 is less than a predetermined value and the safety for the skin S is secured to some extent, the control unit 15 permits the irradiation of the irradiation unit 50 with light.

In step S8, the control unit 15 determines whether or not a light emission signal has been input from the second switch element 462 during the permission period, and if no light emission signal has been input, the process proceeds to step S4 and the light emission signal. If is input, the process proceeds to step S9. Since the process proceeds to step S4 again during the permission period, if the temperature of the skin S rises from less than a predetermined value to more than a predetermined value for some reason, the prohibition period is switched.

In step S9, the control unit 15 controls the light source 51 to irradiate the skin S with light from the irradiation unit 50. As a result, the skin S is irradiated with flash light having a hair-suppressing effect.

[Effects, etc.]
As described above, the hair suppressing device 10 according to the present embodiment is arranged around the irradiation unit 50 that irradiates the object (skin S) with the flashlight and the light emitting surface 110 that the flashlight emits in the irradiation unit 50. A cooling unit 80 for cooling the skin S is provided, and the cooling surface 84 of the cooling unit 80 emits light so that the boundary portion (corner portion 89) between the cooling surface 84 and the light emitting surface 110 is convex. It is arranged so as to be inclined with respect to the surface 110.

According to this, since the cooling surface 84 of the cooling unit 80 is inclined with respect to the light emitting surface 110 so that the corners 89 are convex, the cooling surface 84 is in a state where the light emitting surface 110 is in contact with the skin S. Is separated from the skin S. That is, the contact area of the head portion 30 with respect to the skin S can be reduced during light irradiation. Therefore, it becomes easy to align the irradiation unit 50 at the position intended by the user. On the other hand, when the cooling surface 84 is in contact with the skin S, the light emitting surface 110 is separated from the skin S. That is, the contact area of the head portion 30 with respect to the skin S can be reduced even during cooling. Even in this case, it becomes easy to align the cooling unit 80 at the position intended by the user. As a result, the operability of the hair suppressing device 10 can be improved.

Further, the hair suppressing device 10 includes a housing 21 that holds the irradiation unit 50 and the cooling unit 80, and the housing 21 is continuous with the head unit 30 having the irradiation unit 50 and the cooling unit 80 and the head unit 30 by the user. The grasping unit 40 to be grasped is provided, and the cooling unit 80 is arranged between the irradiation unit 50 and the grasping unit 40 in the head unit 30.

According to this, the irradiation unit 50 is arranged in the head unit 30 at a position farther from the grasping unit 40 than the cooling surface 84. Therefore, if the user changes the wrist in the direction of pulling the head portion 30, the light emitting surface 110 of the irradiation portion 50 can be overlapped with the treatment area (cooling area) of the skin S, and the alignment can be performed smoothly. it can. Therefore, the operability of the hair suppressing device 10 can be further improved.

Further, the hair suppressing device 10 includes a temperature detecting unit 70 that detects the temperature of the skin S and a control unit 15 that controls the irradiation unit 50 based on the detection temperature of the temperature detecting unit 70, and the control unit 15 includes a temperature. When the detection temperature of the detection unit 70 is equal to or higher than a predetermined value, the irradiation of the irradiation unit 50 is prohibited.

According to this, when the detection temperature of the temperature detection unit 70 is equal to or higher than a predetermined value, the irradiation of the irradiation unit 50 is prohibited, so that the heated skin S is irradiated with the light from the irradiation unit 50. Can be prevented. As a result, damage to the skin S can be prevented, so that the user can operate the hair suppressing device 10 without worrying about damage to the skin S.

Further, the hair suppressing device 10 includes a control unit 15 that controls the cooling unit 80, the cooling unit 80 has a Peltier element (thermoelectric element 81), and the control unit 15 determines the surface temperature of the cooling surface 84 of the thermoelectric element 81. The skin S is cooled with a cooling time of 8 seconds or more in a state of −10 ° C. or higher and 0 ° C. or lower.

According to this, the thermoelectric element 81 cools the skin S in a cooling time of 8 seconds or more with the surface temperature of the cooling surface 84 set to −10 ° C. or higher and 0 ° C. or lower, so that the temperature is not easily damaged by light irradiation. The skin S can be reliably cooled.

Further, the hair suppressing device 10 is arranged around the cooling surface 84 of the cooling unit 80, has a contact sensor 88 for detecting contact with the skin S, and the control unit 15 cools based on the detection result of the contact sensor 88. Measure the time.

According to this, since the control unit 15 measures the cooling time based on the detection result of the contact sensor 88 arranged around the cooling surface 84, the cooling time for the skin S by the cooling surface 84 can be accurately measured. Can be done. Therefore, the accuracy of cooling control can be improved.

Further, the area of the cooling surface 84 of the cooling unit 80 is larger than the area of the light emitting surface 110.

According to this, since the area of the cooling surface 84 is larger than the area of the light emitting surface 110, the cooling region of the skin S cooled by the cooling surface 84 is larger than the area of the light emitting surface 110. Therefore, the light emitting surface 110 can be accommodated in the cooling region of the skin S.

[Modification example]
The configuration of the hair suppressing device 10 is not limited to the configuration described in the above embodiment. Therefore, a modified example of the hair suppressing device will be described below, focusing on the difference from the above embodiment. In the following description, the same parts as those in the above embodiment may be designated by the same reference numerals and the description thereof may be omitted.

(Modification example 1)
In the above embodiment, the case where the temperature detection unit 70 includes the contact type temperature sensor 71 is illustrated. In this modification 1, the case where the temperature detection unit 70a includes the non-contact type temperature sensor 71a will be described.

9 and 10 are cross-sectional views showing a schematic configuration of the head portion 30A according to the first modification. FIG. 9 shows the state at the time of detecting the surface temperature of the skin S, and FIG. 10 shows the state at the time of light irradiation.

As shown in FIGS. 9 and 10, the temperature detection unit 70a provided in the head unit 30A includes a plurality of non-contact type temperature sensors 71a and a shutter mechanism 75a.

The plurality of temperature sensors 71a are arranged outside the light irradiation range of the irradiation unit 50. Specifically, the plurality of temperature sensors 71a are arranged around the filter 53. The temperature sensor 71a is, for example, an infrared temperature sensor, which detects the surface temperature of the skin S by irradiating the skin S with infrared rays and receiving the infrared rays reflected from the skin S. The arrow in FIG. 9 indicates an infrared optical path. The infrared temperature sensor may have a detection time of 1 s or less from the time when the infrared ray is irradiated to the time when the temperature is detected. Then, if the number of measurements is one, the measurement accuracy becomes coarse, so that the temperature sensor 71a detects the surface temperature of the skin S a plurality of times during the detection time and selects the maximum value from them. The temperature sensor 71a is fixed to the head portion 30 with its temperature detecting surface facing the skin S via the light emitting surface 110.

The shutter mechanism 75a is a mechanism for opening and closing the temperature detection surface of the temperature sensor 71a. Specifically, the shutter mechanism 75a includes a shutter member 76a and an urging member (not shown) such as a spring. The shutter member 76a is a frame body that surrounds the light emitting surface 110, and is provided so as to freely appear and disappear with respect to the head portion 30A. A plurality of notches 77a in which the temperature sensor 71a is housed are formed on the outer peripheral portion of the shutter member 76a. In a state where the shutter member 76a is housed in the head portion 30A, each temperature sensor 71a is housed in each notch 77a as shown in FIG. As a result, the temperature detection surface of the temperature sensor 71a is closed by the shutter member 76a. On the other hand, as shown in FIG. 9, when the shutter member 76a protrudes from the head portion 30A, each temperature sensor 71a is separated from each notch 77a, and the temperature detection surface is exposed. That is, the surface temperature of the skin S is in a detectable state.

The urging member is an elastic member such as a spring, and is provided in the head portion 30A. The urging member applies an urging force to the shutter member 76a in a direction protruding from the head portion 30A. For example, when no external force is applied to the shutter member 76a, that is, when the skin S is not in contact with the shutter member 76a as shown in FIG. 9, the shutter member 76a is always affected by the urging force of the urging member. It protrudes from the head portion 30A. As a result, the temperature detection surface of each temperature sensor 71a is exposed. On the other hand, when an external force is applied to the shutter member 76a, that is, when the skin S presses the shutter member 76a as shown in FIG. 10, the shutter member 76a heads against the urging force of the urging member. It is housed in part 30A. As a result, the temperature detection surface of each temperature sensor 71a is closed. In this state, even if the light is irradiated from the irradiation unit 50, the light is blocked by the shutter member 76a, so that the light does not reach the temperature detection surface of the temperature sensor 71a. As a result, it is possible to prevent the temperature sensor 71a from being damaged by the light from the irradiation unit 50.

As described above, the temperature detection unit 70a has a plurality of non-contact type temperature sensors 71a and a shutter mechanism 75a that opens and closes the temperature detection surface of the temperature sensor 71. As a result, the temperature sensor 71a can be protected because the shutter mechanism 75a blocks the light from the irradiation unit 50 during light irradiation.

Further, since the temperature detection unit 70a includes the non-contact type temperature sensor 71a, it is possible to reliably detect the temperature of the light receiving region of the skin S.

The head portion 30A may have a sensor that detects that the shutter member 76a has blocked the temperature detection surface of the temperature sensor 71a. If this sensor does not detect the closure of the temperature detection surface by the shutter member 76a, the control unit 15 may prohibit the irradiation of the irradiation unit 50 with light. When the temperature detection surface of the temperature sensor 71a is exposed, light is not emitted from the irradiation unit 50, so that the temperature sensor 71a can be reliably protected.

(Modification 2)
In the above embodiment, the case where the cooling surface 84 of the cooling unit 80 is flat is illustrated. In this modification 2, the case where the cooling surface 84b of the cooling unit 80b is a curved surface will be described.

FIG. 11 is a cross-sectional view showing a schematic configuration of the head portion 30B according to the second modification. As shown in FIG. 11, in the cooling portion 80b provided in the head portion 30B, the cooling surface 84b has a curved surface that is convex outward. The cooling surface 84b has a curved surface having the same shape as a whole in the longitudinal direction of the cooling surface 84b. On the cooling surface 84b, at one end on the irradiation unit 50 side, the angle α1 formed by the tangent line and the light emitting surface 110 is larger than 0 degrees and less than 90 degrees. Similarly, on the cooling surface 84b, at the other end on the opposite side of the irradiation portion 50, the angle α2 formed by the tangent line and the light emitting surface 110 is greater than 0 degrees and less than 90 degrees, and is greater than the angle α1. It has become.

As described above, when the cooling surface 84b is a curved surface that is convex outward, the cooling surface 84b can be pressed against the skin S, and the cooling efficiency can be further improved.

[Other]
The hair-suppressing device according to the present invention has been described above based on the above-described embodiment and each modification, but the present invention is not limited to the above-described embodiment and each modification.

For example, in the above embodiment, the case where the light emitting signal is input from the second switch element 462 to the control unit 15 due to the operation of the light emitting button 42 is illustrated. However, for example, in the control unit 15, a light emitting signal may be automatically generated at a predetermined timing when the power is turned on. Even in this case, the control unit 15 does not accept the light emitting signal during the prohibition period and receives the light emission signal during the permission period.

Further, the case where the irradiation unit 50 has one light source 51 is illustrated. However, the number of light sources 51 installed may be two or more.

Further, in the above embodiment, the lighting unit 43 that performs visual notification as the notification unit is illustrated. However, other notification units can be used as long as the user can be notified. Examples of other notification units include a speaker that performs auditory notification and a vibration device that performs tactile notification. It is also possible to use a plurality of different types of notification units in combination.

Further, in the above embodiment, the commercial power source is exemplified as the power source, but a battery such as a primary battery or a secondary battery may be used as the power source.

Further, in the above embodiment, the cooling unit 50 provided with the thermoelectric element 81 is exemplified. However, if the cooling unit has a cooling surface, it may have a cooling means other than the thermoelectric element 81. Examples of other cooling means include a cooling structure using a cooling agent, an air-cooled cooling structure, a water-cooled cooling structure, and an oil-cooled cooling structure.

Further, in the above-described embodiment, the hair-suppressing device 10 whose main configuration is integrally provided with the housing 21 has been illustrated and described. However, the hair-suppressing device may be a hair-suppressing device in which the head portion that performs optical treatment on the skin and the power supply portion that supplies power to the head portion are separated via a cable.

Further, in the above embodiment, a light irradiation type beauty device dedicated to hair suppression has been exemplified. However, it may be a multifunctional light irradiation type beauty device having a function other than the hair suppressing function. Other functions include a skin care function that cares for the skin by irradiating the skin with light weaker than when the hair is suppressed. Further, it may be a light irradiation type beauty device having no hair suppressing function.

In addition, the embodiments and the components and functions in the embodiments and the modifications can be arbitrarily selected without departing from the spirit of the present invention, as well as the forms obtained by applying various modifications that can be conceived by those skilled in the art. The form realized by combining is also included in the present invention.

The present invention is applicable to a light irradiation type beauty device such as an optical hair suppressor.

10 Hair suppressor (light irradiation type beauty device)
15 Control unit 21 Housing 30, 30A, 30B Head unit 31 Fan 32 Vent hole 40 Grasp unit 41 Power button 42 Light emitting button 43 Lighting unit 45 Capacitor 49 Power terminal 50 Irradiating unit 51 Light source 52 Reflecting unit 53 Filter 70, 70a Temperature detecting unit 71, 71a Temperature sensor 75a Shutter mechanism 76a Shutter member 77a Notch 80, 80b Cooling unit 81 Thermoelectric element 82 Heat storage member 83 Heat exhaust mechanism 84, 84b Cooling surface 88 Contact sensor 89 Corner 110 Light emitting surface 461 First switch element 462 Second Switch element 521 Concave space S Skin (object)
α, α1, α2 angles

Claims (6)

An irradiation part that irradiates an object with a flashlight,
A cooling unit is provided around the light emitting surface on which the flashlight emits light in the irradiation unit to cool the object.
A light irradiation type beauty device in which the cooling surface of the cooling unit is arranged in an inclined posture with respect to the light emitting surface so that the boundary portion between the cooling surface and the light emitting surface is convex. A housing for holding the irradiation unit and the cooling unit is provided.
The housing includes a head portion having the irradiation portion and the cooling portion, and a grasping portion continuous with the head portion and grasped by the user.
The light irradiation type beauty apparatus according to claim 1, wherein the cooling unit is arranged between the irradiation unit and the grasping unit in the head unit. A temperature detection unit that detects the temperature of the object,
A control unit that controls the irradiation unit based on the detection temperature of the temperature detection unit is provided.
The light irradiation type beauty apparatus according to claim 1 or 2, wherein the control unit prohibits irradiation of the irradiation unit when the detection temperature of the temperature detection unit is equal to or higher than a predetermined value. A control unit that controls the cooling unit is provided.
The cooling unit has a Peltier element.
The control unit cools the object in a cooling time of 8 seconds or more with the surface temperature of the cooling surface of the Peltier element set to −10 ° C. or higher and 0 ° C. or lower according to any one of claims 1 to 3. The light irradiation type beauty device described. It has a contact sensor that is arranged around the cooling surface of the cooling unit and detects contact with the object.
The light irradiation type beauty device according to claim 4, wherein the control unit measures the cooling time based on the detection result of the contact sensor. The light irradiation type beauty apparatus according to any one of claims 1 to 5, wherein the area of the cooling surface of the cooling unit is larger than the area of the light emitting surface.

Images