Light-based beauty devices

Abstract

The present invention provides a light-irradiation type beauty device that enables detection of skin contact with the skin-contacting surface and detection of skin color, while suppressing the need for a large device. [Solution] The main body 1a of the light irradiation type beauty device 1 includes a light source 130 that emits light to irradiate light onto the skin surface, a light receiving element 181 for detecting contact of the skin surface with the skin contact surface 160b provided on the attachment 160, a light-transmitting part 170 positioned between the skin surface in contact with the skin contact surface 160b and the light receiving element 181, which is capable of transmitting light, and a light-emitting element 182 that emits light to detect the color of the skin surface. After the light receiving element 181 detects contact of the skin surface with the skin contact surface 160b, the light-emitting element 182 emits light to detect the color of the skin surface, and this light is irradiated onto the skin surface through the light-transmitting part 170, and the light receiving element 181 detects the color of the skin surface based on the light it receives.

Description

Technical Field

[0001] The present disclosure relates to a light irradiation type beauty device.

Background Art

[0002] Conventionally, as shown in Patent Document 1 below, as a light irradiation type beauty device, a sensor for detecting skin contact is provided on the skin contact surface, and light is irradiated only when the skin is in contact with the skin contact surface. It is known. In this Patent Document 1, by irradiating light only when the skin is in contact with the skin contact surface, malfunction during use of the light irradiation type beauty device can be prevented, and the light irradiation type beauty device can be safely used without using a protective device such as sunglasses.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a light irradiation type beauty device, it is preferable to be able to detect the color of the skin and determine whether or not to irradiate the detected skin with light.

[0005] However, in the above conventional technology, a capacitance type skin detection sensor made of a conductive plate is used to detect skin contact. And when using such a sensor (a capacitance type skin detection sensor made of a conductive plate), skin contact can be detected, but skin color cannot be detected. Therefore, in order for the light irradiation type beauty device shown in the above conventional technology to be able to detect the skin color as well, it is necessary to provide a sensor for detecting the skin color separately from the sensor for detecting skin contact (a capacitance type skin detection sensor made of a conductive plate), and there is a problem that the device becomes large-sized.

[0006] This disclosure has been made in view of the problems of the prior art. The purpose of this disclosure is to provide a light irradiation type beauty device that enables detection of skin contact with a skin-contacting surface and detection of skin color, while suppressing an increase in the size of the device. [Means for solving the problem]

[0007] A light-irradiation beauty device according to an embodiment of the present disclosure comprises an attachment having an irradiation port and a main body to which the attachment is detachably mounted, wherein the main body comprises a light source that emits light to irradiate light onto a skin surface, a light-receiving element for detecting contact of the skin surface with a skin-contacting surface provided on the attachment, a light-transmitting portion disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and capable of transmitting light, a filter member disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and cuts infrared light, and a light-emitting element that emits light to detect the color of the skin surface, wherein after the light-receiving element detects contact of the skin surface with the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, and the light is irradiated onto the skin surface through the light-transmitting portion and the light-receiving element detects the color of the skin surface based on the light received.

[0008] Another aspect of the present disclosure of a light-irradiation beauty device comprises an attachment having an irradiation port and a main body to which the attachment is detachably mounted, wherein the main body includes a light source that emits light to irradiate light onto a skin surface, a light-receiving element for detecting contact of the skin surface with a skin-contacting surface provided on the attachment, a light-transmitting portion disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and capable of transmitting light, and a light-emitting element that emits light to detect the color of the skin surface, wherein after the light-receiving element detects contact of the skin surface with the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, and the light is irradiated onto the skin surface through the light-transmitting portion and the light-receiving element detects the color of the skin surface based on the light received. [Effects of the Invention]

[0009] According to this disclosure, it is possible to provide a light irradiation type beauty device that enables detection of skin contact with the skin-contacting surface and detection of skin color, while suppressing the need for the device to become larger. [Brief explanation of the drawing]

[0010] [Figure 1] A front view showing an example of a light-irradiation type beauty device according to an embodiment. [Figure 2] A side view showing an example of a light-irradiation type beauty device according to an embodiment. [Figure 3] Disassembled perspective view of the main unit's casing. [Figure 4] Perspective view of the irradiation unit and cooling unit. [Figure 5] Figure 4 is an exploded perspective view. [Figure 6] Front view of Figure 4. [Figure 7] Cross-sectional view AA in Figure 6. [Figure 8] A diagram showing the control circuit section, a perspective view showing the state with the infrared light-cutting tape removed. [Figure 9] A diagram showing the control circuit section, a perspective view showing the infrared light-cutting tape attached. [Figure 10] Diagram showing attachment mounted on the same plane as the transparent component. [Figure 11] Cross-sectional view of BB in Figure 10. [Figure 12] A perspective view of an attachment that is in the same plane as the transparent component. [Figure 13] An example of an attachment with a different height being mounted. [Figure 14] Cross-sectional view of CC in Figure 13. [Figure 15] A perspective view of an example of an attachment with a different height. [Figure 16] Installation diagrams of other examples of attachments with different heights. [Figure 17] Figure 16 shows a cross-sectional view of the DD. [Figure 18]Perspective view of another example of attachments with different heights. [Figure 19] Perspective view of a tubular light source and a reflector. [Figure 20] Front view of a tubular light source and a reflector. [Figure 21] Cross-sectional view taken along line E-E of FIG. 20.

Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments will be described in detail with reference to the drawings. However, a more detailed description than necessary may be omitted. For example, detailed descriptions of well-known matters or redundant descriptions of substantially the same configurations may be omitted.

[0012] Note that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0013] (Embodiment) As shown in FIGS. 1, FIG. 2 and FIG. 3, in a beauty device (light irradiation type beauty device: light irradiation type beauty instrument) 1 according to the present embodiment, inside the two-part cases 4a and 4b of the main body 1a, a control circuit unit 10, a cooling unit 8, and a capacitor 9 for causing a xenon tube 130 (see FIG. 5) to emit light are arranged. Inside an attachment 160 attached to the upper part of the cases 4a and 4b, an irradiation unit 12 is provided. This attachment 160 is detachably attached to the main body 1a. Thus, in the present embodiment, at least one or more attachments detachable from the main body 1a are provided.

[0014] The portion of the main body 1a opposite to the portion where the attachment 160 is attached is a gripping portion gripped by the user, and a power cable 7 is drawn out from the protruding end portion of this gripping portion.

[0015] Next, the schematic configuration of the irradiation unit 12 and the cooling unit 8 will be described with reference to Figures 3, 4, and 5.

[0016] In the irradiation unit 12, a reflector 131 through which a xenon tube 130, which serves as a light source, is inserted is positioned inside the lamp case 124 shown in Figure 5. Furthermore, light source holding members 133 engaged with both ends of the xenon tube 130 bias the outer surface 130a of the xenon tube 130 so that it is always in contact with the curved surface 131b of the reflector 131. A conductive tape 132 positioned between the xenon tube 130, the reflector 131, and the light source holding members 133 is a trigger part for causing the xenon tube 130 to emit light.

[0017] The upper surface of the xenon tube 130 is covered with a filter 122 that acts as a UV filter to cut ultraviolet rays, and the filter 122 is positioned at its outer circumference between an elastic member 123 with an open center and a lamp case 124.

[0018] The transparent member 121, made of glass, is secured at its upper surface by a glass case 125, and the lower surface of the transparent member 121 is in elastic contact with the filter 122 by an elastic member 123. By bringing the transparent member 121 and the filter 122 into contact via the elastic member 123, condensation caused by the temperature difference between the transparent member 121 and the filter 122 is suppressed. The glass case 125 is fixed to the lamp case 124 by screws 14.

[0019] Next, the cooling unit 8 will be described in detail. In the cooling unit 8, a heatsink 83 is positioned inside a housing composed of three parts: a first air passage case 140, a second air passage case 141, and a third air passage case 142. The second air passage case 141 is fixed to the first air passage case 140 by screws 22, and to the third air passage case 142 by screws 33. A heat pipe 81 is also integrally fixed to the heatsink 83.

[0020] A heat sink 83 is provided on the upper surface of the fan 150, which is held by the second airflow case 141 and the third airflow case 142, and this heat sink 83 is held by the second airflow case 141 and the first airflow case 140. The heat pipe 81 is exposed to the outside of the housing formed by the airflow cases 140, 141, and 142, and is in contact with the Peltier element 80 (described later) via a heat sink 82.

[0021] The lamp case 124 is fixed by being sandwiched between the first air passage case 140 and the second air passage case 141, and the heat sink 82, which is integrally fixed to the heat pipe 81, is fixed to the glass case 125 by screws 55. In this way, the irradiation unit 12 and the cooling unit 8 are integrated.

[0022] A hole 1251 is provided on one side of the glass case 125, through which the transparent member 121 is exposed, and the Peltier element 80 is in contact with the exposed portion of the transparent member 121. On the side of the Peltier element 80 opposite to the side in contact with the transparent member 121, a heat sink 82 is in contact to dissipate heat from the Peltier element 80. In addition, thermally conductive grease or a sheet may be sandwiched between the Peltier element 80 and the transparent member 121, and between the Peltier element 80 and the heat sink 82.

[0023] Next, the cooling of the filter 122 will be described in detail. As shown in Figure 7, the air from the fan 150 passes through the first air passage 143 and hits the reflector 131, where it splits into a second air passage 144 and a third air passage 145. The second air passage 144 passes through the gap between the recess 131a (see Figures 19 to 21) provided on the upper part of the reflector 131 and the filter 122, exits to the fourth air passage 146 side, and merges with the third air passage 145. On the other hand, the third air passage 145 passes below the reflector 131 and merges with the second air passage 144. The reflector 131 is cooled by the air flowing through the second air passage 144 and the third air passage 145, which are provided around the reflector 131. As a result, the xenon tube 130, which is in contact with the curved portion 131b of the reflector 131, is also cooled, and the filter 122 is cooled simultaneously. These first air passage 143, second air passage 144, third air passage 145, and fourth air passage 146 constitute an air circulation air passage that allows air to flow.

[0024] As shown in Figures 2 and 3, the air intake 5 to the first air passage 143 is designed to draw in air through a gap between the first case 4a and the second case 4b. The second case 4b is fixed to the third case 4c, which has a frame-like portion, by screws 11, and this third case 4c is fixed to the first case 4a using hooks 13.

[0025] Then, air is drawn in through the intake port 5 (the gap between the first case 4a and the second case 4b) and through multiple intake holes 44 provided in the third case 4c into the first air passage 143 inside the housing composed of cases 4a, 4b, and 4c. On the other hand, air from the fourth air passage 146 inside the housing composed of cases 4a, 4b, and 4c is discharged through multiple exhaust holes 6 provided in the first case 4a. The housing composed of cases 4a, 4b, and 4c may be provided with a dust collection filter or a deodorizing filter to purify the air when it is drawn in through the intake port 5 (the gap between the first case 4a and the second case 4b).

[0026] Regarding the light path, the light emitted from the xenon tube 130 passes through the filter 122, where UV (ultraviolet) rays that could irritate the skin are cut off, and then passes through the transparent member 121 and is irradiated onto the skin. As described above, a Peltier element 80 is in contact with the side of the transparent member 121, and the transparent member 121 is cooled by this Peltier element 80, which simultaneously cools the skin being irradiated, thus irradiating light while suppressing light irritation.

[0027] Furthermore, the surface of the Peltier element 80 opposite to the surface in contact with the transparent member 121 experiences a temperature increase, so this opposite surface is in contact with the heat sink 82. In this way, the Peltier element 80 is cooled by the heat pipe 81 connected to the heat sink 83.

[0028] An attachment 160 is detachably attached to the main body 1a, and this attachment 160 protects the skin from the corners of the transparent member 121.

[0029] As shown in Figure 8, a light guide plate (transmitting part) 170 fixed to the main body 1a is provided on the skin-contacting surface 160b of the attachment 160. This light guide plate 170 is provided on an LED cover 180 that covers an LED 182, which is a light-emitting element (light-emitting part) for detecting skin color, and a light-receiving element 181, which is a light-receiving element part for confirming skin contact, both of which are provided on the substrate 183. Thus, in this embodiment, the light-emitting part is composed of the LED 182, and the light-receiving element part is composed of the light-receiving element 181. In addition, in this embodiment, a notch 160c is formed in the attachment 160 in which the light guide plate 170 is placed, and by placing the light guide plate 170 in this notch 160c, the light emitted from the LED 182 to detect the color of the skin surface in close contact with the skin-contacting surface 160b of the attachment 160 is transmitted through the light guide plate 170, which is a transmitting part. In this case, it is preferable that the wavelength of the light emitted from LED 182 be between 490 nm and 640 nm. By setting the wavelength of the light emitted from LED 182 to 490 nm or higher, it becomes possible to avoid irritating the skin with blue to ultraviolet light, thereby making it possible to use the beauty device (light irradiation type beauty device) 1 more safely.

[0030] Furthermore, by setting the wavelength of the light emitted from LED182 to 640nm or less, it becomes possible to prevent the emission of light in the red to infrared region, which easily penetrates the skin, thereby more reliably suppressing the decrease in the reflection efficiency of the light emitted from LED182 on the skin.

[0031] Thus, by ensuring that the wavelength of the light emitted from LED182 is between 490nm and 640nm, that is, by setting the wavelength of the light emitted from LED182 to the range of 490nm to 640nm, excluding infrared light that penetrates the skin, it becomes possible to ensure skin reflection efficiency while taking safety into consideration.

[0032] When the power to the main unit 1a is turned on, the light-receiving element 181 detects the brightness of the environment and detects the darkness when the skin-contacting surface 160b of the attachment 160 is placed on the skin. When the light-receiving element 181 detects the darkness when the skin-contacting surface 160b of the attachment 160 is placed on the skin, the LED 182 emits light, and the light-receiving element 181 detects the skin color based on the amount of reflected light. After identifying whether the skin color is suitable for irradiation, light is emitted from the LED 182 toward the skin surface.

[0033] Thus, in this embodiment, the color of the skin surface can be detected using a light-receiving element 181 for detecting contact between the skin surface and the skin-contacting surface 160b. This eliminates the need to provide a separate sensor for detecting the color of the skin surface from the sensor for detecting contact between the skin surface and the skin-contacting surface 160b, thereby reducing the number of parts and simplifying the configuration. Furthermore, by reducing the number of parts, the area in which the sensor is located can be reduced, making it possible to miniaturize the beauty device (light irradiation type beauty device) 1.

[0034] In other words, the same light-receiving element 181 is used to detect both skin contact with the skin-contacting surface 160b and the color of the skin. Specifically, the beauty device (light-irradiation type beauty device) 1 according to this embodiment is provided with a common detection unit that detects skin contact and skin color using a common light-emitting unit and a common light-receiving element. After the common detection unit detects skin contact, it irradiates the skin with light from the common light-emitting unit to detect skin color. This allows for miniaturization of the light-emitting unit and reduces the excess area of ​​the skin-contacting surface 160b of the attachment 160. Thus, this embodiment prevents the beauty device (light-irradiation type beauty device) 1, which is capable of detecting skin contact with the skin-contacting surface 160b and detecting skin color, from becoming too large. Furthermore, by miniaturizing the light-emitting unit, the beauty device (light-irradiation type beauty device) 1 is made easier to apply to the skin and safer.

[0035] Furthermore, in this embodiment, the common detection unit, which includes a common light-emitting element and a common light-receiving element, has a transparent member that cuts infrared light. Specifically, as shown in Figure 9, the beauty device (light irradiation type beauty device) 1 is equipped with an infrared light-cutting tape 190 as a filter member that cuts infrared light, which is placed between the skin surface in contact with the skin-contacting surface 160b and the light-receiving element 181. Then, with the light-receiving element 181 mounted on the substrate 183, the infrared light-cutting tape 190 is wrapped around the substrate 183 so that the infrared light-cutting tape 190 is placed on the light-receiving element 181. In this way, infrared light is cut in the vicinity of the light-receiving element 181, and the light-receiving element 181 is more reliably prevented from receiving infrared light.

[0036] This allows for more accurate detection of skin contact with the skin-contacting surface 160b. In other words, it becomes possible to more reliably suppress infrared light from passing through the skin from the outside and being received by the light-receiving element 181 when the skin surface is in contact with the skin-contacting surface 160b. Furthermore, it becomes possible to more reliably suppress the situation where the light-receiving element 181 receives light (infrared light) even though the skin surface is blocking the irradiation opening 160a, and it is determined that the skin surface is not in contact with the skin-contacting surface 160b. Thus, in this embodiment, the common light-receiving element section is equipped with a tape that cuts off transmitted infrared light. This allows for more accurate detection of skin contact with the skin-contacting surface 160b. This results in a beauty device (light irradiation type beauty device) 1 that operates stably even in indoor environments with sunlight and is easy to use.

[0037] Figures 10, 11, and 12 show an embodiment of the attachment 160. In this embodiment, as described above, the skin-contacting surface 160b of the attachment 160 is provided with a light guide plate 170 fixed to the main body 1a on the same plane.

[0038] Figures 13, 14, and 15 show examples of attachments 161 with different irradiation area sizes. In these examples, attachment 161 is taller than attachment 160 shown in Figures 10 to 12, and the transparent member 121 is located further away from the skin contact surface 161b. Also, as shown in Figure 15, the area of ​​the irradiation port 161a is larger than the area of ​​the irradiation port 160a of attachment 160 shown in Figure 12. By doing so, in areas with low hair density and relatively little irritation, there is no need to cool to reduce irritation, and because the irradiation area is larger, cosmetic procedures can be performed with fewer irradiations.

[0039] Furthermore, the attachment 161 has a notch 161c in which the light guide rod 171 is positioned. By attaching the attachment 161 to the main body 1a with the light guide rod 171 positioned in the notch 161c, the light guide rod 171 comes into internal contact with the light guide plate 170 fixed to the main body 1a. In this way, the light emitted from the LED 182 to detect the color of the skin surface on the skin-contacting surface 161b of the attachment 161 passes through the light guide plate 170, which acts as a transmissive part, and the light guide rod 171, which acts as an extended transmissive part. Thus, the attachment 161 shown in Figures 13, 14, and 15 is an attachment with a transmissive part made of a transparent material.

[0040] Figures 16, 17, and 18 show an embodiment of attachment 162, which has a different irradiation area from attachments 160 and 161. In this embodiment, attachment 162 is taller than attachment 160 shown in Figures 10 to 12, and the transparent member 121 is located further away from the skin contact surface 162b. Also, as shown in Figure 18, the area of ​​the irradiation port 162a is smaller than the area of ​​the irradiation port 160a of attachment 160 shown in Figure 12. This attachment 162 is an attachment that allows for pinpoint beauty treatments by irradiating a narrow area of ​​skin with light.

[0041] Furthermore, the attachment 162 has a notch 162c in which the light guide rod 172 is positioned. By attaching the attachment 162 to the main body 1a with the light guide rod 172 positioned in the notch 162c, the light guide rod 172 comes into internal contact with the light guide plate 170 fixed to the main body 1a. In this way, the light emitted from the LED 182 to detect the color of the skin surface on the skin-contacting surface 162b of the attachment 162 passes through the light guide plate 170, which acts as a transmissive part, and the light guide rod 172, which acts as an extended transmissive part. Thus, the attachment 162 shown in Figures 16, 17, and 18 is also an attachment with a transmissive part made of a transparent material.

[0042] Furthermore, LED182 may determine one or more of the following: degree of skin contact, skin contact area, or skin condition. In addition, skin condition may include one or more of the following: skin color, skin texture, skin age, skin moisture level, or skin oil level.

[0043] Although not shown in the diagram, the main body 1a is provided with multiple detection switches, and each of the different types of attachments 160, 161, and 162 is provided with a projection for pressing at least one of the multiple detection switches. The number of projections and their installation positions differ for each type of attachment 160, 161, and 162. Therefore, when attachments 160, 161, and 162 are attached to the main body 1a, the projections press the detection switches, allowing the type of attachment 160, 161, or 162 attached to be detected based on the pressed detection switch.

[0044] The reflector 131 will be described in detail below with reference to Figures 19, 20, and 21.

[0045] As shown in Figures 19 to 21, the concave space 135 of the reflector 131 is open on the side of the irradiation port 160a (upper side in the figures). The concave curved surface that forms the concave space 135 in the reflector 131 is a reflective surface 136. The reflector 131 is also provided with a pair of wall portions 137, 137 that cover both sides of the concave space 135. The inner surfaces of the pair of wall portions 137, 137 may be reflective surfaces. The pair of wall portions 137, 137 are provided with through-holes 138 through which both ends of the xenon tube 130, which is a tubular light source, pass.

[0046] In the reflector 131, the xenon tube 130 is housed in the concave space 135 with both ends protruding from the concave space 135 through through-holes 138. As a result, some of the light emitted from the xenon tube 130 goes directly to the irradiation port 160a through the upper opening of the concave space 135, while the remaining light is reflected by the reflective surface 136 and then goes to the irradiation port 160a through the upper opening of the concave space 135.

[0047] As shown in Figure 21, the reflector 131 is formed in a concave shape when viewed in the axial direction of the xenon tube 130. Specifically, the reflector 131 has a shape that protrudes toward the opposite side from the irradiation port 160a. As a result, a curved portion 131b is formed at the end of the reflector 131 opposite to the irradiation port 160a, in which the outer circumferential surface 130a of the xenon tube 130 makes close contact.

[0048] Furthermore, as shown in Figures 19 to 21, recesses 131a are provided at the top of each of the pair of wall sections 137, 137 to form a part of the airflow path around the reflector 131 (second airflow path 144).

[0049] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0050] (Technology 1) A light-irradiation type beauty device comprising an attachment having an irradiation port and a main body to which the attachment is detachably mounted, wherein the main body comprises a light source that emits light to irradiate light onto the skin surface, a light-receiving element for detecting contact of the skin surface with a skin-contacting surface provided on the attachment, a light-transmitting portion disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and capable of transmitting light, a filter member disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and cuts infrared light, and a light-emitting element that emits light to detect the color of the skin surface, wherein the light-receiving element detects contact of the skin surface with the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, the light is irradiated onto the skin surface through the light-transmitting portion and the color of the skin surface is detected based on the light received by the light-receiving element.

[0051] Thus, in the light-irradiation type beauty device described in Technology 1, the color of the skin surface can be detected using a light-receiving element that detects contact between the skin surface and the skin-contacting surface. This eliminates the need to provide a separate sensor for detecting the color of the skin surface from the sensor that detects contact between the skin surface and the skin-contacting surface, thus reducing the number of parts and simplifying the configuration. Furthermore, by reducing the number of parts, it becomes possible to reduce the area in which the sensor is located, thus enabling the miniaturization of the light-irradiation type beauty device. In other words, by enabling the detection of skin surface contact with the skin-contacting surface and the color of the skin surface using the same light-receiving element, the light-emitting unit can be miniaturized. And by miniaturizing the light-emitting unit, it becomes possible to create a light-irradiation type beauty device that is easy to apply to the skin and is safe.

[0052] Thus, by using the light irradiation type beauty device described in Technology 1, it becomes possible to detect contact between the skin surface and the skin surface and to detect the color of the skin surface, while suppressing the need for the light irradiation type beauty device to become large.

[0053] Furthermore, the light-irradiation type beauty device described in Technology 1 is equipped with a filter member that is placed between the skin surface in contact with the skin-contacting surface and the light-receiving element to cut out infrared light. This makes it possible to more reliably suppress infrared light from passing through the skin from the outside and being received by the light-receiving element when the skin surface is in contact with the skin-contacting surface. As a result, it becomes possible to more reliably suppress the situation in which the light-receiving element receives light (infrared light) even though the skin surface is blocking the irradiation opening, and the device is judged to not be in contact with the skin-contacting surface. Therefore, it becomes possible to detect skin contact with the skin-contacting surface with greater accuracy. With this configuration, the device can operate stably even in indoor environments with sunlight, resulting in a user-friendly light-irradiation type beauty device.

[0054] (Technology 2) The light-emitting element is an LED, and the wavelength of the light emitted from the LED is 490 nm or more and 640 nm or less, wherein the light-emitting element is an LED, and the wavelength of the light emitted from the LED is 490 nm or more and 640 nm or less, the light-emitting beauty device according to Technology 1.

[0055] By using LEDs as light-emitting elements, it becomes possible to limit the wavelength of the emitted light to a predetermined range. Furthermore, by setting the wavelength of the light emitted from the LEDs to 490nm or higher, it becomes possible to avoid irritating the skin with blue to ultraviolet light. Therefore, it becomes possible to use light-based beauty devices more safely.

[0056] Furthermore, by setting the wavelength of the light emitted from the LED to 640nm or less, it becomes possible to prevent the emission of light in the red to infrared region, which easily penetrates the skin. Therefore, it becomes possible to more reliably suppress the decrease in the reflection efficiency of the light emitted from the LED by the skin.

[0057] By ensuring that the wavelength of light emitted from the LED is between 490nm and 640nm, it becomes possible to ensure sufficient reflection efficiency on the skin while also considering safety.

[0058] (Technology 3) The light irradiation type beauty device according to Technology 1 or Technology 2, wherein the filter member is an infrared light cut tape placed on the light receiving element.

[0059] This method cuts off infrared light near the light-receiving element, making it possible to more reliably suppress the light-receiving element from receiving infrared light, and thus enabling more accurate detection of skin contact with the skin-contacting surface.

[0060] (Technology 4) A light-irradiation type beauty device according to any one of the technologies 1 to 3, comprising a plurality of types of attachments, wherein at least one of the plurality of types of attachments has an extended transmissive portion that transmits light from the light-emitting element in order to detect contact of the skin surface with the skin-contacting surface provided on the attachment, and is formed to contact the transmissive portion.

[0061] This allows for detection of skin contact with the attachment's skin-contacting surface, even when using an attachment where the height of the skin-contacting surface differs from the edge of the transparent portion. Therefore, even when using an attachment where the height of the skin-contacting surface differs from the edge of the transparent portion, it becomes possible to illuminate the skin only when contact with the skin-contacting surface of the attachment is detected.

[0062] (Technology 5) A light-irradiation type beauty device according to any one of the technologies 1 to 4, wherein the light-receiving element determines one or more of the degree of skin contact, skin contact area, and skin condition.

[0063] This allows the light-receiving element to detect one or more of the following: the degree of skin contact, the area of ​​skin contact, or the condition of the skin. Therefore, it becomes possible to adjust the output of light emitted from the light source according to the detected degree of skin contact, etc.

[0064] (Technical 6) The light irradiation type beauty device according to Technical 5, wherein the skin condition is one or more of the following: skin color, skin texture, skin age, skin moisture level, and skin oil level.

[0065] This allows the light-receiving element to detect one or more of the following: skin color, skin texture, skin age, skin moisture level, and skin oil level. Therefore, it becomes possible to adjust the output of light emitted from the light source according to the detected skin color, etc.

[0066] (Technical 7) A light-irradiation type beauty device comprising an attachment having an irradiation port and a main body to which the attachment is detachably mounted, wherein the main body comprises a light source that emits light to irradiate light onto the skin surface, a light-receiving element for detecting contact of the skin surface with a skin-contacting surface provided on the attachment, a light-transmitting portion disposed between the skin surface in contact with the skin-contacting surface and the light-receiving element and capable of transmitting light, and a light-emitting element that emits light to detect the color of the skin surface, wherein after the light-receiving element detects contact of the skin surface with the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, and the light is irradiated onto the skin surface through the light-transmitting portion and the color of the skin surface is detected based on the light received by the light-receiving element.

[0067] Thus, in the light-irradiation type beauty device described in Technology 7, the color of the skin surface can be detected using a light-receiving element that detects contact between the skin surface and the skin-contacting surface. This eliminates the need to provide a separate sensor for detecting the color of the skin surface from the sensor that detects contact between the skin surface and the skin-contacting surface, thus reducing the number of parts and simplifying the configuration. Furthermore, by reducing the number of parts, it becomes possible to reduce the area in which the sensor is located, thus enabling the miniaturization of the light-irradiation type beauty device. In other words, by enabling the detection of skin surface contact with the skin-contacting surface and skin surface color using the same light-receiving element, the light-emitting unit can be miniaturized. And by miniaturizing the light-emitting unit, it becomes possible to create a light-irradiation type beauty device that is easy to apply to the skin and safe.

[0068] Thus, by using the light irradiation type beauty device described in Technology 7, it becomes possible to detect contact between the skin surface and the skin surface and detect the color of the skin surface, while suppressing the need for the light irradiation type beauty device to become large.

[0069] [others] The contents of the light-irradiation type beauty device described herein have been explained above, but it will be obvious to those skilled in the art that the device is not limited to these descriptions and that various modifications and improvements are possible.

[0070] For example, this disclosure can be applied to embodiments in which the configuration shown in the above embodiments has been modified, replaced, added, or omitted. Furthermore, it is possible to combine the components described in the above embodiments to create new embodiments.

[0071] Furthermore, although the above embodiment illustrates a light source using a xenon tube 130, it is also possible to use an LED light source. If an LED light source is used, the wavelength of the emitted light can be selected, so it is possible to prevent the emission of light in the blue to ultraviolet region, eliminating the need for a UV filter. In addition, since it is possible to prevent the emission of light in the red to infrared region, it becomes possible to judge the color of the skin surface more reliably.

[0072] Furthermore, by appropriately setting the wavelength of light irradiated onto the skin, it becomes possible to impart beauty effects to the skin according to the wavelength of light.

[0073] For example, by irradiating light in the following wavelength range from a light source, the beauty effects shown below can be obtained. Note that the wavelengths shown below represent peak wavelengths, and some wavelengths outside this range may be included in the light emitted from the light source.

[0074] (1) 400nm~550nm: Improves fine wrinkles, acne, redness, moisturizes, improves pores, has anti-inflammatory effects, reduces sebum, and promotes wound healing. (2) 550nm~620nm: Improves fine wrinkles, collagen production (improves sagging), promotes cell turnover, improves blemishes (3) 620nm~750nm: Wound healing, wrinkle improvement, blemish improvement, cell turnover promotion, collagen production (sagging improvement), acne improvement, anti-inflammatory effect (4) 750nm~2000nm: Wound healing, collagen production (improvement of sagging), and promotion of cell turnover. Furthermore, by using LED elements (light-emitting elements) with a wavelength spectrum of 550 nm to 1000 nm, it is possible to obtain the effects described in (1) to (4).

[0075] Furthermore, it is possible to incorporate a function of an infrared light-cutting filter into the transmitting portion. If the transmitting portion is given the function of an infrared light-cutting filter, it is possible to use infrared light-cutting tape in addition, or it is possible to omit the use of infrared light-cutting tape.

[0076] Furthermore, the common detection unit can also include a skin condition detection unit that detects the skin condition. Additionally, the common detection unit can include a light emission adjustment unit that uses the skin condition data detected by the skin condition detection unit to adjust the intensity of the light emitted from the common light-emitting unit. This would allow for more optimal light irradiation of the skin surface using a light-irradiation type beauty device.

[0077] Furthermore, the light-irradiation beauty device can be equipped with a human detection unit that can identify the user. It is also possible to equip the light-irradiation beauty device with a user-optimized operation adjustment unit that can adjust the device to the optimal operation for the user identified by the human detection unit. This eliminates the need to manually change settings for each user, thus improving the usability of the light-irradiation beauty device. Additionally, it is possible to incorporate AI technology to perform optimal operation control when the user-optimized operation adjustment unit adjusts to the optimal operation.

[0078] Furthermore, the main unit, attachments, and other detailed specifications (shape, size, layout, etc.) can be modified as needed. [Industrial applicability]

[0079] The light-irradiation type beauty device described herein enables detection of skin contact with the skin-contacting surface and detection of skin color, while suppressing the need for a large device. Therefore, it can be applied to various beauty devices, including those for home and professional use. [Explanation of Symbols]

[0080] 1 Beauty device (light irradiation type beauty device) 1a Main body 130 Xenon tube (light source) 160 Attachments 160a irradiation port 160b Skin contact surface 160c transparent part 161 Attachments 161a Irradiation port 161b Skin contact surface 170 Light guide plate (transparent part) 171 Light guide rod (extended transparent part) 172 Light guide rod (extended transparent part) 181 Photodetector 182 LEDs (light-emitting elements) 190 Infrared light blocking tape (filter material)

Claims

1. An attachment having an irradiation port, The main body portion to which the aforementioned attachment is detachably mounted, Equipped with, The main body is, A light source that emits light in order to irradiate the skin surface, A light-receiving element for detecting contact between the skin surface and the skin-contacting surface provided on the attachment, A transparent portion is positioned between the skin surface in contact with the skin-contacting surface and the light-receiving element, and is capable of transmitting light. A filter member is positioned between the skin surface in contact with the skin-contacting surface and the light-receiving element to cut out infrared light, A light-emitting element that emits light for detecting the color of the skin surface, It is equipped with, After the light-receiving element detects contact between the skin surface and the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, and this light is irradiated onto the skin surface through the transmissive portion, and the light-receiving element detects the color of the skin surface based on the light it receives. Light irradiation type beauty device.

2. The light-emitting element is an LED, The wavelength of the light emitted from the LED is between 490 nm and 640 nm. The light irradiation type beauty device according to claim 1.

3. The filter member is an infrared light-cutting tape placed on the light-receiving element. A light-irradiation type beauty device according to claim 1 or claim 2.

4. Equipped with multiple types of the aforementioned attachments, At least one of the multiple types of attachments has an extended transmissive portion that transmits light from the light-emitting element in order to detect contact between the skin surface and the skin-contacting surface provided on the attachment, and is in contact with the transmissive portion. A light-irradiation type beauty device according to claim 1 or claim 2.

5. The aforementioned light-receiving element determines one or more of the following: degree of skin contact, skin contact area, and skin condition. A light-irradiation type beauty device according to claim 1 or claim 2.

6. The light irradiation type beauty device according to claim 5, wherein the skin condition is one or more of the following: skin color, skin texture, skin age, skin moisture level, and skin oil level.

7. An attachment having an irradiation port, The main body portion to which the aforementioned attachment is detachably mounted, Equipped with, The main body is, A light source that emits light in order to irradiate the skin surface, A light-receiving element for detecting contact between the skin surface and the skin-contacting surface provided on the attachment, A transparent portion is positioned between the skin surface in contact with the skin-contacting surface and the light-receiving element, and is capable of transmitting light. A light-emitting element that emits light for detecting the color of the skin surface, It is equipped with, After the light-receiving element detects contact between the skin surface and the skin-contacting surface, the light-emitting element emits light to detect the color of the skin surface, and this light is irradiated onto the skin surface through the transmissive portion, and the light-receiving element detects the color of the skin surface based on the light it receives. Light irradiation type beauty device.

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