CN108065914B

CN108065914B - Beauty treatment instrument

Info

Publication number: CN108065914B
Application number: CN201710142425.XA
Authority: CN
Inventors: 松尾亘佑; 穴井一成; 中岛久雄
Original assignee: Maxell Ltd
Current assignee: Maxell Ltd
Priority date: 2016-11-16
Filing date: 2017-03-10
Publication date: 2022-03-01
Anticipated expiration: 2037-03-10
Also published as: JP6763753B2; HK1249384A1; JP2018079080A; CN108065914A

Abstract

A beauty instrument sets an appropriate electrical reference value corresponding to the skin color of a user, and can accurately detect skin abnormality such as spots regardless of the skin color. The beauty treatment apparatus comprises: the skin stimulation device includes a skin stimulator including a stimulation surface that is brought into contact with a skin surface and applies stimulation, a skin stimulus source that applies physical cosmetic stimulation to the skin stimulator, and a skin abnormality detection unit that optically detects an abnormality on the skin surface. The skin abnormality detection unit includes a light emitting unit that emits detection light to a measurement area on the skin surface, and a light receiving unit that receives the detection light reflected by the skin surface and outputs an electrical output value corresponding to the amount of received light. The state of the skin surface can be determined by comparing the electrical output value of the light receiving section with a predetermined electrical reference value. The electric power supply device includes a storage unit for storing an electric reference value. When the amount of light received corresponding to the electrical output value of the light receiving unit is larger than the reference light amount indicated by the electrical reference value stored in the storage unit, the electrical output value is stored in the storage unit as a new electrical reference value.

Description

Beauty treatment instrument

Technical Field

The present invention relates to a cosmetic device including a skin abnormality detection unit that optically detects abnormalities on the skin surface such as spots and darkness.

Background

In connection with the present invention, for example, patent document 1 discloses a skin health sensor capable of detecting abnormalities on the skin surface such as spots. The sensor is constituted by a light source portion formed of a plurality of light sources, a probe connected to the light source portion via an irradiation light guide, a light amount measuring portion connected to the probe via a light receiving light guide, and the like. When the probe is brought into contact with the skin surface such as the face and the light source emits light, incident light from the light source is transmitted to the probe by the irradiation light guide, and reflected light reflected by the skin surface is transmitted to the light amount measurement unit by the light receiving light guide. The health level (presence or absence of abnormalities such as spots) of the skin surface can be calculated from the reflection absorbance, which is the ratio of the incident light quantity irradiated from the light source to the reflected light quantity measured by the light quantity measuring unit.

The amount of inspection light reflected by the skin surface of the user increases as the skin becomes whiter, and decreases as the skin becomes darker. Therefore, when the reflected light amount of the average skin color is set as the reference light amount, when a user who is whiter than the average skin color uses a beauty instrument, the reflected light amount is higher than the reference light amount even in an abnormal portion such as a patch, and the abnormal portion may be erroneously determined as normal. On the other hand, when the user who is darker than the average skin color uses the cosmetic device, the reflected light amount is also lower than the reference light amount in the normal portion, and the normal portion may be erroneously determined as abnormal.

Patent document 1: japanese laid-open patent publication No. 11-253408 (paragraph 0011, FIG. 1)

Disclosure of Invention

The invention provides a beauty instrument which can set an appropriate electric reference value corresponding to the skin color of a user and accurately detect skin abnormality such as spots regardless of the skin color.

The cosmetic device of the present invention includes: a skin stimulating body 3 including a stimulating face 3a which is in contact with and gives a stimulus to a skin surface; a skin stimulus source 116 for giving a physical cosmetic stimulus to the skin stimulator 3; and a skin abnormality detection section 88 that optically detects an abnormality of the skin surface. The skin abnormality detection unit 88 includes: a light emitting unit 138 that irradiates an examination light to a measurement area on the skin surface; and a light receiving unit 139 that receives the inspection light reflected by the skin surface and outputs an electrical output value corresponding to the amount of received light. The state of the skin surface is determined by comparing the electrical output value of the light receiving section 139 with a predetermined electrical reference value. The beauty instrument includes a storage unit 177 for storing an electric reference value. When the amount of light received corresponding to the electrical output value of the light receiving section 139 is larger than the reference light amount indicated by the electrical reference value stored in the storage section 177, the electrical output value is stored in the storage section 177 as a new electrical reference value. In the present invention, the physical cosmetic stimulus is a generic term for electric current stimulus, vibration stimulus, thermal stimulus (warm stimulus and cold stimulus), and the like.

The state of the skin surface is determined by comparing the electrical output value of the light receiving unit 139 with a predetermined electrical reference value, and when it is determined to be an abnormal state, at least one of control for increasing the output of the skin stimulus source 116 and control for operating the notification body 89 for notifying the abnormal state of the skin surface is performed.

The light emitting unit 138 emits the inspection light to the measurement target portion on the skin surface, and the light receiving unit 139 that receives the reflected light outputs electrical output values such as current and voltage according to the amount of light received. Then, the electric output value of the light receiving unit 139 is compared with a predetermined electric reference value to determine the state of the measured unit. According to this determination method, since the skin condition can be determined on a simple and quantitative basis such as an electrical output value, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined.

When the amount of light received corresponding to the electrical output value of the light receiving section 139 is larger than the reference light amount indicated by the electrical reference value stored in the storage section 177, the output value is stored in the storage section 177 as a new electrical reference value. Accordingly, since the user moves the beauty instrument along the skin surface and the electrical reference value is updated every time the measurement unit 143 is facing a whiter skin color portion, the electrical reference value can be set based on the whitest portion of the user. As described above, according to the present invention, it is possible to set an appropriate electrical reference value corresponding to the skin color of the user, and accurately detect skin abnormality such as skin spots regardless of the skin color.

When the abnormal portion of the skin surface increases the output of the skin stimulus source 116, the portion can be treated intensively and intensively, and the trouble of the user in switching the output of the skin stimulus source 116 can be eliminated. When the notification body 89 is operated at an abnormal portion on the skin surface, the user can be immediately notified of the abnormal portion, and concentrated care of the abnormal portion can be promoted.

Drawings

Fig. 1 is a cross-sectional plan view of a skin head of a cosmetic apparatus of embodiment 1 of the present invention.

Fig. 2 is a front view of the beauty treatment apparatus.

Fig. 3 is a side view of a cosmetic device.

Fig. 4 is a longitudinal sectional side view of a skin head.

Fig. 5 is a cross-sectional plan view showing a main portion of fig. 1 in an enlarged manner.

Fig. 6 is a sectional view taken along line a-a of fig. 4.

Fig. 7 is an exploded view of the skin head.

Fig. 8 is a block diagram of a control system of the beauty appliance.

Fig. 9 is a schematic circuit diagram of the skin abnormality detection unit.

Fig. 10 is a flowchart showing a control procedure of the reference voltage and the care level in the skin abnormality detection mode.

Fig. 11 is a time chart showing temporal changes in the operating state of each unit in the skin abnormality detection mode.

Fig. 12 is an explanatory diagram of a determination region of the output voltage.

Fig. 13 is a time chart showing temporal changes in the operating states of the respective parts when the skin abnormality detection mode is selected in a state in which the cotton pad is attached to the outer surface of the skin irritant.

Fig. 14 is a longitudinal sectional view of the optical path forming body of the cosmetic device according to example 2 of the present invention.

Description of the symbols

2, skin head; 3a skin irritant; 3a stimulating surface; 10 handle electrodes; 88 skin abnormality detection unit; 89 a notification body; 100 head support parts; 101 a handle part; 115 a control unit; 116 a source of skin irritation; 117 light emitting body (head display portion); 118 a vibrator; 120 a vibrator support; 137 a substrate; 138 a light emitting section (light emitting element); 139 a light receiving part (light receiving element); 140 a 1 st optical path formation body; 141 a 2 nd optical path formation body; a 142 lens; 143 a measuring section; 147 receiving portions (receiving holes); 148 receiving portions (receiving holes); 149 interface; 150 light path grooves; 158 an engaging surface; 159 light path grooves; 164 a heater; 165 a heater support; 175 current source; 177 a storage part.

Detailed Description

(example 1)

Fig. 1 to 13 show embodiment 1 of the cosmetic device of the present invention. The front-back, left-right, and up-down in the present embodiment are displayed in accordance with the intersecting arrows shown in fig. 2 and 3 and the front-back, left-right, and up-down indicated by the arrows in the vicinity thereof. In the drawing, the cosmetic device includes a vertically long main body case 1 also serving as a grip, and a pair of front and

rear skin heads

2 and 102 provided on an upper portion of the main body case 1. The main body case 1 is formed in a hollow case shape by a front case 1a and a rear case 1b formed by dividing front and rear. The upper half of the main body case 1 constitutes a head support portion 100 that supports the pair of

skin heads

2, 102, and the lower half of the main body case 1 constitutes a grip portion 101.

A vertically long control board 7 facing the front wall of the front case 1a and a battery 8 electrically connected to the control board 7 are housed inside the main body case 1. A power supply connection-purpose power switch 103, a mode selection switch 104 for switching a drive mode, and a horizontal switching switch 105 for switching a drive intensity are mounted on a lower portion of the front surface of the control substrate 7. A switch panel 6 having 3 switch buttons 106 to 108 is provided on the front surface of a grip portion 101 of a main body case 1, and a user can operate corresponding switches 103 to 105 by pressing the switch buttons 106 to 108 inward. Further, a mode display unit 109 for displaying a drive mode by emitting light and a horizontal display unit 110 for displaying a drive intensity by emitting light are mounted on the upper front surface of the control board 7. The two

display units

109 and 110 are each formed of a plurality of LEDs, and light-transmitting windows facing these LEDs are provided in the front case 1a and the switch panel 6. The user can visually confirm the two

display portions

109 and 110 through the light-transmitting windows.

The skin head 102 on the rear side is housed in the head support portion 100 of the main body case 1 with only the rear surface thereof exposed from the rear case 1 b. A peltier element 113 and a heat sink 114 are housed inside the skin head 102, and a heat absorbing surface of the peltier element 113 is joined to the skin head 102 and a heat emitting surface is joined to the heat sink 114. The peltier element 113 is connected to the control substrate 7 via a lead wire, not shown. When a drive current is supplied from the control substrate 7 to the peltier element 113, the skin head 102 is cooled via the heat absorbing surface thereof, and the heat generating surface of the peltier element 113 is radiated via the heat sink 114. The rear skin head 102 is used in a "cooling mode" for cooling the skin surface of the user.

The cosmetic device of the present embodiment includes, in addition to the above-described "cooling mode", an "ion extraction mode", an "ion introduction mode", and a "skin abnormality detection mode", and uses the front skin head 2 in the 3 driving modes. The user presses the power switch 103 to turn on the power switch, and then selects the "ion extraction mode", and the mode display unit 109 displays that the mode is selected. From this state, each time the mode selection switch 104 is pressed, the driving mode is switched in the order of the "iontophoresis mode", the "skin abnormality detection mode", and the "cooling mode", and the display of the mode display unit 109 is switched. When the mode selection switch 104 is pressed in the "cooling mode", the mode returns to the "ion extraction mode". In fig. 1, the skin head 2 on the front side is configured by a head case 16 formed of a cylindrical plastic molded product, a skin stimulator 3 attached to the front end of the head case 16, a head display unit (light emitting unit) 117 disposed on the outer peripheral surface of the head case 16, a vibrator 118 and a skin abnormality detection unit 88 housed in the head case 16, and the like. As described later, the "skin abnormality detection mode" is a drive mode in which the skin abnormality detection unit 88 is driven and ion implantation is performed.

A circular mounting seat 14 for mounting the head housing 16 is provided on the upper front surface of the front housing 1a, and a connecting cylinder wall 18 fitted into the mounting seat 14 is formed at the rear end of the head housing 16. The head case 16 and the front case 1a are integrated by 2 screws 22 screwed into the connecting cylinder wall 18 from the inner surface of the front case 1a, and a vibrator holder 120 supporting the vibrator 118 is provided. In this mounted state, the gap between the outer peripheral wall connected to the mount 14 and the connecting cylinder wall 18 is sealed by the O-ring 23.

A mounting cylinder wall 122 for mounting the skin stimulator 3 is formed at the front end of the head housing 16. The skin irritant 3 is formed of a press-formed product of a circular cap made of a titanium plate material, and is covered from the front over the mounting cylinder wall 122 to be integrated with the head housing 16. The outer peripheral surface of the mounting tube wall 122 and the peripheral wall of the skin stimulator 3 facing thereto are formed to be slightly tapered forward. An O-ring 123 is disposed on the outer peripheral surface of the mounting cylindrical wall 122, and the O-ring 123 is elastically deformed by being sandwiched between the mounting cylindrical wall 122 and the skin stimulator 3, whereby the gap between the both

walls

122, 3 is sealed. A retaining ring 124 is fitted to the outer surface of the rear end of the skin stimulator 3, and the skin stimulator 3 is fixed to the head housing 16 by attaching the retaining ring 124 to the cap attaching portion 17. The head housing 16 includes a cover attachment portion 17 that is expanded in a circumferential manner on the rear side of the attachment cylindrical wall 122, and a retaining ring 124 is received by the front wall of the cover attachment portion 17. In fig. 3, reference numeral 64 denotes an annular holding cover for holding a sheet-like cotton pad (sheet body/obstacle) M, and the holding cover 64 is press-fitted to the preceding cover mounting portion 17 to fix and hold the cotton pad M mounted on the outer surface of the skin stimulating body 3. Instead of the cotton pad M, other sheet bodies that can absorb liquid, for example, a porous body such as sponge or a sheet body made of paper, which are collectively referred to as a liquid-absorbent sheet body M, may be used.

A head display portion 117 is disposed on the outer peripheral surface of the head housing 16 between the cap mounting portion 17 and the connecting cylinder wall 18. In fig. 4, the head display unit 117 includes a closed ring-shaped light guide ring 126 wound around the outer peripheral surface of the head case 16, and a pair of upper and lower LEDs 127 embedded in the wall surface of the head case 16 and facing the light guide ring 126. The light guide ring 126 is made of a polycarbonate resin, an acrylic resin, or the like having excellent light diffusibility, and light incident from the LED127 is repeatedly reflected by the light guide ring 126, so that the entire light guide ring 126 emits light substantially uniformly. The outer diameter of the light guide ring 126 is set sufficiently smaller than the outer diameter of the cover attachment portion 17. Therefore, in a state where the user faces the stimulation surface 3a on the front surface of the skin stimulation body 3, the light guide ring 126 itself is shielded by the cover attachment portion 17 and does not reflect the user's eyes, and only the light emitted from the light guide ring 126 reflects the user's eyes. That is, the cover attachment portion 17 also serves as a light shielding wall 128 for eliminating light that is emitted to the eyes of the user.

A vibrator 118 formed of an eccentric motor and a vibrator holder 120 for supporting the vibrator 118 are housed in the rear half of the head case 16. The vibrator holder 120 is formed of a pair of front and rear divided

holders

130 and 131 that cooperatively hold the vibrator 118. The front and rear divided

supports

130 and 131 are integrated by providing 3 bosses (boss)132 on the rear surface of the front divided support 130 and screwing screws 133 passed through the rear divided support 131 into the bosses 132. As shown in fig. 1, the rear divided bracket 131 integrally includes a pair of left and right flange-shaped base portions 134, and the two base portions 134 are fixed to the seat wall of the mount 14 by screws 22 together with the connecting cylinder wall 18 of the head housing 16 described above. In addition, the vibrator holder 120 may be an integral product that is not divided into the pair of divided

holders

130 and 131.

A skin abnormality detection unit 88 is disposed between the skin irritant 3 and the vibrator holder 120. In fig. 5, the skin abnormality detection unit 88 is configured by a light emitting element (light emitting unit) 138 and a light receiving element (light receiving unit) 139 attached to the front surface of the substrate 137, a pair of front and rear light

path forming members

140 and 141 forming a V-shaped light path from the light emitting element 138 to the light receiving element 139, a lens 142 disposed at the center of the front surface of the 1 st light path forming member 140 positioned on the front side, and the like. A circular window opening 35 for exposing the lens 142 is formed in the center of the stimulation surface 3a of the skin stimulator 3, and the front surface of the lens 142 exposed through the window opening 35 constitutes a measurement portion 143 facing the measurement portion on the skin surface of the user. In the driven state of the skin abnormality detection unit 88, the light emitting element 138 emits the inspection light to the center of the measurement unit 143, and the inspection light is reflected by the measurement portion on the skin surface in contact with the measurement unit 143 and reaches the light receiving element 139. The lens 142 is formed using polycarbonate having excellent light transmittance as a material.

The 2 nd optical path forming body 141 located on the rear side is formed of a plastic molded product integrally including a substantially disk-shaped bottom plate 145 facing the substrate 137 and a substantially conical tapered portion 146 provided to protrude at the center of the front surface of the bottom plate 145. Receiving holes (receiving portions) 147 and 148 for receiving the light emitting element 138 and the light receiving element 139 are formed on the left and right sides of the bottom plate 145, respectively. In order to avoid contact between the two

elements

138, 139 and the wall surfaces of the receiving

holes

147, 148, the receiving

holes

147, 148 are formed slightly larger than the

elements

138, 139 to be received. The conical surface of the tapered portion 146 constitutes a joint surface 149 to be joined to the 1 st optical path forming body 140, and a pair of left and right optical path grooves 150 parallel to a generatrix and a pair of upper and lower engaging recesses 151 are formed in the joint surface 149 in a recessed manner (see fig. 6)

In fig. 4, the 1 st optical path formation body 140 is formed of a plastic molded product integrally including a substantially circular plate-shaped bottom plate 153 slightly larger than the bottom plate 145 of the 2 nd optical path formation body 141, a columnar portion 154 provided to protrude at the center of the rear surface of the bottom plate 153, a spring shaft 155 provided to protrude at the peripheral portion of the rear surface of the

bottom plate

153, and 3 bosses 156, and a mortar-shaped tapered hole 157 for receiving the tapered portion 146 is formed to penetrate the center portions of the bottom plate 153 and the columnar portion 154. The wall surface of the tapered hole 157 constitutes a joint surface 158 to be joined to the joint surface 149 of the tapered portion 146, and a pair of left and right optical path grooves 159 facing the optical path grooves 150 of the tapered portion 146 are formed recessed in the joint surface 158, and a pair of upper and lower engaging convex portions 160 (see fig. 6) to be engaged with the engaging concave portions 151 of the tapered portion 146 are provided projecting. The spring shaft 155 passes through the coil spring 161 for energizing the skin stimulator 3, and supports the spring 161.

When the tapered portion 146 of the 2 nd optical path forming body 141 is formed in a substantially conical shape and the tapered hole 157 of the 1 st optical path forming body 140 is formed in a mortar shape, the tapered portion 146 corresponding to the tapered hole 157 is easily accommodated and the pair of optical

path forming bodies

140 and 141 are less likely to be displaced from each other. In a state where the bonding surfaces 149, 158 of the tapered portion 146 and the tapered hole 157 are bonded to each other, the

optical path grooves

150, 159 formed in the bonding surfaces 149, 158 face each other, and a hollow optical path through which the inspection light passes is formed. Further, the engagement between the engaging convex portion 160 and the engaging concave portion 151 restricts relative rotation of the front and rear optical

path forming members

140 and 141 around the central axis of the tapered portion 146. The rear end face of the columnar portion 154 is received by the front face of the bottom plate 145 of the 2 nd optical path formation member 141. The screws 162 passing through the front side division holder 130 are screwed into the bosses 156, and the front side division holder 130 and the 1 st optical path formation body 140 are integrated, and the substrate 137 and the 2 nd optical path formation body 141 are sandwiched between the both

holders

130, 140 from the front and the rear. The

optical path grooves

150 and 159 may be formed only on one of the two

joint surfaces

149 and 158.

A lens hole 163 for accommodating the lens 142 is formed in a recessed manner in the center of the front surface of the bottom plate 153 of the 1 st light path forming body 140, and a heater support portion 165 for supporting the heater 164 is formed in a step-like manner so as to surround the lens hole 163. The heater 164 is a flat film heater, and the rear surface thereof is supported by a heater support 165. The front surface of the heater 164 is bonded to the inner surface of the skin stimulator 3 via an insulating double-sided tape 166. The skin stimulator 3 and the heater 164 are electrically cut off by the double-sided adhesive tape 166. A temperature sensor (thermistor) 167 for measuring the surface temperature of the heater 164 and a fuse 168 (see fig. 4) for cutting off the supply of current to the heater 164 in case of abnormality are embedded in a part of the heater support portion 165.

As shown in fig. 5 in an enlarged manner, guide surfaces 171 and 172 each having a tapered shape with a narrow front end are formed in a circumferential manner on the rear surface of the lens 142 and the bottom surface of the lens hole 163 facing thereto. The lens 142 is positioned vertically and horizontally with respect to the optical path forming body 140 by bringing the lens 142 and the 1 st optical path forming body 140 into close contact with each other and joining the two

guide surfaces

171 and 172. The front surface of the peripheral edge of the lens 142 is bonded to the inner surface of the skin stimulator 3 via an elastic double-sided tape 173. The double-sided tape 173 is pressed against the inner surface of the skin irritant 3 through the lens 142, and seals the gap between the lens 142 and the skin irritant 3 in a watertight manner. That is, the double-sided tape 173 serves as both a fixing means for the lens 142 of the skin irritant 3 and a sealing body for waterproofing. Further, the lens 142 is fixed to the inner surface of the skin irritant 3 by merely adhering the lens 142 to the double-sided adhesive tape 173, so that the positional deviation of the lens 142 with respect to the skin irritant 3 can be sufficiently prevented and the water-tightness between the two

members

3, 142 can be sufficiently ensured, but in the present embodiment, in order to further prevent the positional deviation and improve the water-tightness, the following structure is adopted: the split holder 131 fixed to the rear side of the head case 16 by the screw 22 presses the lens 142 to the inner surface of the skin stimulator 3 via the split holder 130 on the front side and the pair of optical

path forming members

140 and 141, thereby bringing the two

members

3 and 142 into close contact with each other more reliably.

An example of the procedure of assembling the skin head 2 to the front case 1a will be described with reference to fig. 7. First, the pair of the optical

path formation members

140 and 141 and the substrate 137 are combined with the coil spring 161, the screw 162 is screwed into the boss 156 of the 1 st optical path formation member 140 through the front divided bracket 130, and the front divided bracket 130 is fixed to the 1 st optical path formation member 140, thereby obtaining a 1 st assembly in which the 2 nd optical path formation member 141 and the substrate 137 are sandwiched from front to back between the two

members

130 and 140. Next, the vibrator 118 is assembled to the front split bracket 130 from the rear, and the front and

rear split brackets

130 and 131 are integrated by screwing the rear split bracket 131 into the bosses 132 of the front split bracket 130 with screws 133, thereby obtaining a 2 nd assembly in which the vibrator 118 and the rear split bracket 131 are added to the 1 st assembly.

The obtained 2 nd combined product is inserted from the rear into an opening surrounded by the mount 14 of the front case 1a, and the head case 16 to which the light guide ring 126, the LED127, and the O-ring 23 are attached in advance is inserted from the front into the inner side of the outer peripheral wall connected to the mount 14. In this state, the screw 22 is passed through the mount 14 from the rear and the base part 134 of the rear split bracket 131 and screwed into the connecting cylinder wall 18 of the head case 16, whereby the 2 nd assembly and the head case 16 are fixed to the front case 1 a. Next, the temperature sensor 167, the fuse 168, the heater 164, and the lens 142 are assembled to the front surface of the 1 st light path forming body 140 exposed from the front surface of the head case 16, and double-

sided tapes

166 and 173 are attached to the front surfaces of the heater 164 and the lens 142. Finally, the skin stimulator 3 is mounted on the mounting cylindrical wall 122 of the head housing 16, on which the O-ring 123 is disposed in advance, and fixed by the holding ring 124. The above assembly procedure is only an example, and various other assembly procedures can be considered, and in any case, the double-

sided tapes

166 and 173, the heater 164 and the lens 142, the 1 st formation body for optical path 140, the 2 nd formation body for optical path 141, the substrate 137, and the front divided holder 130 are sandwiched between the skin stimulator 3 and the rear divided holder 131 in this order from the front. The lens 142 and the 1 st optical path formation member 140 may be formed as an integrally molded product.

The skin stimulator 3 is connected to a current source 175 (see fig. 8) mounted on the control board 7 via a current-carrying coil spring 161 and lead wires (not shown). A grip electrode 10 (see fig. 3) is fixed to the rear surface of the grip portion 101 of the main body case 1, and the grip electrode 10 is also connected to a current source 175 via a lead wire (not shown). The supply of current from the current source 175 to the skin stimulator 3 and the grip electrode 10 is controlled by the control unit 115 mounted on the control board 7. In the "ion extraction mode", a pulse current of positive polarity is supplied to the skin stimulator 3, and a pulse current of negative polarity is supplied to the grip electrode 10. In the "iontophoresis mode" and the "skin abnormality detection mode", a pulse current of negative polarity is supplied to the skin stimulator 3, and a pulse current of positive polarity is supplied to the grip electrode 10. In the present embodiment, the current source 175, the vibrator 118, and the heater 164 constitute the skin stimulus source 116 that gives the skin stimulator 3 physical cosmetic stimuli, i.e., current stimuli, vibration stimuli, and temperature stimuli.

In the "ion introduction mode" and the "ion introduction mode", the treatment can be performed by directly pressing the stimulation surface 3a of the skin stimulator 3 against the skin surface, or the treatment can be performed by attaching the cotton pad M to the outer surface of the skin stimulator 3 with the holding cover 64 and pressing the cotton pad M against the skin surface. In the case of using the cotton pad M, the cotton pad M may be impregnated with the cosmetic liquid, or the cotton pad M may be pressed against the skin surface directly applied with the cosmetic liquid. On the other hand, in the attached state of the cotton pad M, the cotton pad M is interposed between the skin surface and the measurement portion 143, and therefore the skin abnormality detection portion 88 cannot measure the skin state. Therefore, when the switching operation is performed to the "skin abnormality detection mode" in a state where the cotton pad M is attached, or when the cotton pad M is attached when the "skin abnormality detection mode" is selected, the control to automatically shift to the normal "ion introduction mode" is performed, and the details thereof will be described later.

In the "ion extraction mode", the "ion introduction mode", and the "skin abnormality detection mode", the intensity of the pulse current supplied from the current source 175 to the skin stimulator 3 and the grip electrode 10 is switched at 3 levels of "weak", "medium", and "strong" every time the user presses the horizontal switch 105. Specifically, in the "ion extraction mode" and the "ion introduction mode", a voltage of 6V is applied to the current source 175 in the "weak" state, a voltage of 8V is applied to the current source 175 in the "medium" state, and a voltage of 10V is applied to the current source 175 in the "strong" state. In the "skin abnormality detection mode", the control unit 115 automatically controls the voltage applied to the current source 175 based on the care level determined based on the drive strength set by the user via the level switch 105 and the detection result of the skin abnormality detection unit 88. In this example, the applied voltage when the drive strength is "weak" and the care level is "1" is set to 6V, the applied voltage when the drive strength is "medium" and the care level is "1" is set to 8V, the applied voltage when the drive strength is "strong" and the care level is "1" is set to 10V, and the applied voltage is increased by 1V for each increase in the care level. The maximum value of the care level was "5", and in this case, the applied voltage was 10V when the driving strength was "weak", 12V when the driving strength was "medium", and 14V when the driving strength was "strong".

The voltage values described above are merely examples, and it is needless to say that values other than those described above may be used. The same applies to the voltage values and the like exemplified later. It is only an example that the drive strength set by the level changeover switch 105 is set to 3 levels and the maximum value of the care level based on the detection result of the skin abnormality detection unit 88 is set to "5", and the number of levels and the maximum value different from these levels may be adopted. In the present embodiment, the magnitude of the voltage applied to the current source 175 is changed, and the magnitude of the peak value of the pulse current supplied from the current source 175 is changed, so as to change the intensity of the pulse current.

As shown in fig. 8 and 9, the control unit 115 controls the pulse current supplied from the current source 175 to the skin stimulator 3 and the grip electrode 10, the drive current supplied to the heater 164 and the vibrator 118, the display contents in the

display units

109, 110, and 117, and the like, based on input signals from the switches 103 to 105, the temperature sensor 167, and the like. The control unit 115 further includes a timer 176 that can measure the drive time of the beauty instrument, and a storage unit 177 that stores a reference voltage V0 (an electrical reference value: an electrical output value corresponding to a predetermined reference light amount) described later. The light emitting element 138 is formed of a light emitting diode, is connected to the control unit 115 via the regulator 178, and is connected in series to a resistor (e.g., 100 Ω) in the light emitting element 138. The inspection light emitted from the light emitting element 138 is a violet visible light having a peak wavelength of about 400 nm. The light receiving element 139 is formed of a photodiode, and is connected to the control unit 115 via an operational amplifier 179. More specifically, the light-receiving element 139 is connected to the inverting input terminal (-i) of the operational amplifier 179, and the output terminal of the operational amplifier 179 is connected to the controller 115.

When a voltage is applied from the control section 115 to the light emitting element 138 via the regulator 178, the element 138 emits light and irradiates the skin surface of the user with inspection light. The inspection light is reflected on the skin surface of the user and reaches the light receiving element 139. The amount of reflected light at this time varies depending on the skin color of the user, that is, the amount of melanin. Specifically, in the case of a user with dark skin and a large amount of melanin, the amount of reflected light decreases because the skin surface absorbs a large amount of inspection light. On the other hand, in the case of a user with white skin and less melanin pigment, the absorption rate of the inspection light is low, and thus the amount of reflected light increases. Even when the same user uses the device, abnormal portions such as spots caused by melanin pigment absorb much light and the amount of reflected light is reduced compared with normal portions without the spots. The skin abnormality detecting unit 88 of the present embodiment detects skin abnormalities such as spots from the difference in the amount of reflected light. Since violet (380 to 430nm) visible light is more easily absorbed by melanin than other visible light having a longer wavelength, the difference in the amount of reflected light when irradiated to a normal portion and an abnormal portion is large, and thus the capability of detecting skin abnormality is excellent.

As the inspection light reflected on the skin surface of the user reaches the light receiving element 139, a larger current flows through the light receiving element 139, and a larger voltage is output from the operational amplifier 179 to the control unit 115. The output voltage V can be obtained by a product of the current I flowing through the light receiving element 139 and a resistance R (for example, 50M Ω) disposed in the negative feedback circuit. The controller 115 compares the output voltage V from the operational amplifier 179 with the reference voltage V0 stored in the storage 177, and determines that the output voltage V is normal if the output voltage V is equal to or higher than the reference voltage V0(V ≧ V0), and determines that the output voltage V is abnormal if the output voltage V is lower than the reference voltage V0(V < V0). In the present embodiment, the amplifier circuit is configured such that the output voltage V becomes larger as the current I becomes larger, and conversely, the amplifier circuit may be configured such that the output voltage V becomes smaller as the current I becomes larger.

The reference voltage V0 is a variable that changes according to the skin color of the user, and is set to a higher voltage as the color of the normal portion is white and to a lower voltage as the color is black. As shown in the flowchart of fig. 10, at the time of starting to use the beauty apparatus of the "skin abnormality detection mode", for example, the control unit 115 sets the reference voltage V0 to 1.0V (step S1) and sets the care levels of the current source 175, the heater 164, and the vibrator 118 to "1" (step S2). Here, the voltage value of 1.0V is as follows: a value slightly larger than the voltage value (about 0.8V) output from the operational amplifier 179 when the mole is irradiated with the inspection light from the light emitting element 138. Further, the treatment level "1" is a treatment level that generates current stimulation or the like given to a normal portion of the skin surface.

In the next step S3, it is checked whether or not the cotton pad M is mounted on the outer surface of the skin irritant 3. Since the cotton pad M is generally white and contains no melanin pigment, the amount of reflected light is larger when the cotton pad M is irradiated with the inspection light than when the cotton pad M is irradiated with the inspection light. By this mechanism, it is possible to determine whether the cotton pad M is mounted or not. Specifically, the output voltage V outputted from the operational amplifier 179 to the control unit 115 is compared with a predetermined maximum voltage VM (upper limit electric reference value: electric output value corresponding to a predetermined upper limit reference light quantity) (for example, 2.8V), and when the output voltage V exceeds the maximum voltage VM (yes in step S3), it is determined that the cotton pad M is attached to the outer surface of the skin stimulator 3, and the "skin abnormality detection mode" is ended (step S4), and the routine shifts to the normal "ion introduction mode". On the other hand, when the output voltage V is equal to or lower than the maximum voltage VM (no in step S3), it is determined that the cotton pad M is not directly facing the measurement section 143 but the skin surface of the user, and the process proceeds to the next step S5.

In the next step S5, the output voltage V and the reference voltage V0 are compared. In the initial state where the reference voltage V0 is set to 1.0V, the output voltage V exceeds the reference voltage V0(V > V0) in most cases, and in the next step S6, the output voltage V is set to a new reference voltage V0. In the next step S7, when the care level is not set to "1", the care level is set to "1", and the process returns to step S3. By moving the beauty instrument along the skin surface by the user, the reference voltage V0 is repeatedly updated in step S6, and the reference voltage V0 corresponding to the skin color of the user is set. That is, the output voltage V of the whitest portion of the user's skin, i.e., the normal portion without spots or the like, is set as the final reference voltage V0. Each time the power supply of the beauty instrument is turned off, the reference voltage V0 stored in the storage unit 177 is reset to an initial value (for example, 1.0V).

In step S5, when the output voltage V and the reference voltage V0 are equal (V — V0), the procedure proceeds to step S7 by skipping step S6, and when the care level is set to a value other than "1", the care level is set to "1", and the procedure returns to step S3. On the other hand, in step S5, when the output voltage V is lower than the reference voltage V0(V < V0), the process proceeds to step S8, where the output voltage V is compared with a predetermined minimum voltage Vm (lower limit electric reference value: electric output value corresponding to a predetermined lower limit reference light amount). The minimum voltage Vm is a constant set to 0.8V, which is the same as the output voltage value when the mole is irradiated with the inspection light, and is stored in the storage unit 177 in advance. When the output voltage V is lower than the minimum voltage Vm (yes in step S8), it is determined that the skin stimulator 3 is facing a black mole that does not require care, the care level of each skin stimulus source 116 is set to "0" or more and "1" or less so as not to give unnecessary stimulus to the black mole (step S9), the output of each skin stimulus source 116 is stopped or attenuated, and the process returns to step S3. The care level "0" is a care level at which the output of the skin stimulus source 116 is stopped and no stimulus at all occurs from the skin stimulus source 116. The care levels of the current source 175, the heater 164, and the vibrator 118 may be set individually to be "0" to "1".

In step S8, when the output voltage V is equal to or higher than the minimum voltage Vm (no in step S8), the process proceeds to step S10, and the difference between the reference voltage V0 and the output voltage V is compared with a predetermined constant C. The constant C is a positive number (C > 0) stored in advance in the storage unit 177. If the difference between the reference voltage V0 and the output voltage V is equal to or less than the constant C (yes in step S10), the care level is set to "2" which is stronger than "1" (step S11), and the process returns to step S3. In contrast, if the difference exceeds the constant C (no in step S10), the process proceeds to step S12.

In step S12, the difference between the reference voltage V0 and the output voltage V is compared with a value of 2 times the constant C. If the difference is 2 times or less the constant C (yes in step S12), the care level is set to "3" which is stronger than "2" (step S13), and the process returns to step S3. In contrast, when the difference exceeds 2 times the constant C (no in step S12), the process proceeds to step S14, and the difference between the reference voltage V0 and the output voltage V is compared with a value 3 times the constant C. If the difference is 3 times or less the constant C (yes in step S14), the care level is set to "4" which is stronger than "3" (step S15), and the process returns to step S3. In contrast, in the case where the difference exceeds 3 times the constant C (no in step S14), the care level is set to "5" which is stronger than "4" (step S16), and the process returns to step S3.

In summary of steps S10 to S16, the care level when the difference between the reference voltage V0 and the output voltage V is equal to or less than the constant C (0 < V0-V.ltoreq.C) is set to "2", and the care level when the difference exceeds the constant C without exceeding 2 times (C < V0-V.ltoreq.2C) is set to "3". Further, when the difference between the reference voltage V0 and the output voltage V exceeds 2 times of the constant C and does not exceed 3 times (2C < V0-V.ltoreq.3C), the care level is set to "4", and when the difference exceeds 3 times of the constant C (3C < V0-V), the care level is set to "5". In addition, instead of the constant C used in the present embodiment, for example, a variable that varies in accordance with the reference voltage V0 may be used.

As described above, when a moles is detected in step S9 (yes in step S8), the output of each skin stimulus source 116 is stopped or attenuated. In the present invention, the attenuation of the output (care level) of the skin stimulus source 116 includes not only the reduction to the lowest output other than the stopped state but also the concept of maintaining the lowest output. That is, in the case where the care level of the skin stimulus source 116 is set to "1" in step S9, if the previous care level is "2" or more, the care level is decreased to "1" in step S9, and correspondingly, if the previous care level is already "1", the care level is maintained to "1" in step S9, but these are referred to as attenuations in the present invention.

When the user holds the grip portion 101 with a hand and touches the grip electrode 10 and the skin surface such as the face is brought into contact with the skin irritant 3, an electrically closed circuit is formed which is constituted by the internal circuit of the cosmetic device connecting the skin irritant 3 and the grip electrode 10 and the human body of the user. The control unit 115 determines whether or not the stimulation surface 3a is in contact with the skin surface based on the presence or absence of the formation of the closed circuit. That is, the skin stimulator 3 of the present embodiment functions as a skin detection sensor for detecting contact between the stimulation surface 3a and the skin surface. Only in the state where the closed circuit is detected, the control unit 115 supplies a pulse current for skin stimulation from the current source 175 to the skin stimulator 3 and the grip electrode 10, and supplies a drive current to the vibrator 118. Then, only in a state where the closed circuit is detected, the control unit 115 supplies power to the light emitting element 138 to drive the skin abnormality detection unit 88, and supplies power to the head display unit 117 to cause the display unit 117 to emit light. In a state where an electrically closed circuit is not formed, that is, in a state where the stimulation surface 3a is away from the skin surface, the power consumption of the beauty apparatus can be suppressed by stopping the supply of the pulse current for skin stimulation and the drive current of the vibrator 118, the drive of the skin abnormality detection unit 88, and the light emission display of the head display unit 117.

The skin detection sensor may be constituted by an optical sensor or the like different from the skin stimulator 3. When the optical sensor is disposed on the stimulation surface 3a of the skin stimulator 3, the stimulation surface 3a comes into contact with the skin surface, and the optical sensor cannot receive indoor light. When this occurs, a signal is transmitted from the optical sensor to the control unit 115, and the control unit 115 receiving the signal determines that the skin surface is in contact with the stimulation surface 3a, and starts supply of a pulse current from the current source 175, driving of the skin abnormality detection unit 88, and the like.

Next, a case where the cosmetic device of the present embodiment is used in the "skin abnormality detection mode" will be described. As described above, the "skin abnormality detection mode" is a drive mode in which the skin abnormality detection unit 88 is driven and ion introduction is performed, and the control unit 115 not only drives the skin abnormality detection unit 88 but also supplies the skin stimulator 3 and the grip electrode 10 with a pulse current for skin stimulation and drives the heater 164 and the vibrator 118. That is, current stimulation, warm stimulation, and vibration stimulation are applied to the skin surface while measuring the skin state of the user. When an abnormal portion such as a spot is detected by the skin abnormality detection unit 88, current stimulation or the like is automatically enhanced in the abnormal portion, and the abnormal portion is treated intensively and intensively. That is, the care level of the skin stimulus source 116 (current source 175, heater 164, vibrator 118) is set to "1" in the normal portion of the skin surface, and is set to "2" to "5" in the abnormal portion according to the degree of abnormality. In addition, in the mole part, the care level of each skin stimulus source 116 is set to "0" to "1".

In the timing chart of fig. 11, when the user turns on the power switch 103 and operates the mode selection switch 104 to select the "skin abnormality detection mode" (time t0), the control unit 115 switches the display of the mode display unit 109, starts the timer 176, and controls the current source 175 so as to start the supply of the weak pulse current for skin detection to the skin stimulator 3 and the grip electrode 10. At the same time, the control unit 115 turns on the light emitting element 138 of the skin abnormality detection unit 88 for a moment (for example, for 0.2 second). When the light emitting element 138 is temporarily turned on when the "skin abnormality detection mode" is selected, the user can clearly recognize that the driving mode has been switched to the "skin abnormality detection mode" in conjunction with the switching of the display of the mode display unit 109. The light emitting element 138 is turned off after being turned on once, and is turned on again at a time point (time point t1 described later) when the skin detection state in which the electrically closed circuit is formed is reached. In the skin detection state, that is, in the state where the skin stimulating body 3 is in contact with the skin surface, the user cannot confirm that the light emitting element 138 is turned on. When the "skin abnormality detection mode" is selected, the light emitting element 138 is temporarily turned on, and the user may confirm the operation of the light emitting element 138. That is, the user can recognize the light emission mode such as the light emitting element 138 being in a normal state and having no failure, or the light emission color in the lit state by the temporary lighting of the light emitting element 138. After about 5 seconds after the power is turned on, the control unit 115 starts the energization of the heater 164 to warm up the skin irritant 3. The care level of the heater 164 at this time is "1". The control unit 115 controls the heater 164 to be switched on and off so as to maintain the surface temperature of the stimulation surface 3a of the skin stimulator 3 at about 40 ℃ in accordance with the input signal from the temperature sensor 167.

In the beauty apparatus of the present embodiment, the drive mode is reset to the "ion extraction mode" every time the power supply is turned off, and therefore the time point at which the "skin abnormality detection mode" is selected by the mode selection switch 104 after the power supply is turned on becomes the time point t0 in the timing chart of fig. 11, but in the beauty apparatus in which the drive mode is stored even after the power supply is turned off, when the power supply is turned off in the state in which the "skin abnormality detection mode" is selected, the "skin abnormality detection mode" is selected from the first time when the power supply is turned on next time, and therefore the time point at which the power supply switch 103 is turned on becomes the time point t0 in fig. 11. In the beauty apparatus including only the "skin abnormality detection mode" as the drive mode, the time point when the power switch 103 is turned on also becomes time point t0 in fig. 11.

When the user holds the grip portion 101 and brings the skin stimulating body 3 into contact with the skin surface, the electrically closed circuit described above is formed. The control unit 115 that has detected the closed circuit starts supply of the pulse current for skin stimulation from the current source 175 to the skin stimulator 3 and the grip electrode 10, supply of the driving current to the vibrator 118, light emission display in the head display unit 117, and irradiation of the inspection light from the light emitting element 138 to the skin surface (time t 1). The care level of the current source 175 and the vibrator 118 at this time is "1", and the care level of the heater 164 is also maintained at "1". The head display section 117 displays, for example, a care level of the skin stimulus source 116 as "1" by blue light.

When the care level is "1", the pulse current for skin stimulation supplied to the skin stimulator 3 is weak, and thus the user cannot easily recognize that the current is supplied. Therefore, in the present embodiment, when a pulse current of the care level "1" is supplied, the vibrator 118 and the heater 164 are driven at the same time, and further, the head display section 117 is caused to emit light. Since the vibrator 118, the heater 164, and the head display unit 117 are energized to be easily recognized by the user regardless of the care level, the user can recognize that the pulse current of the care level "1" is supplied by the recognition of the energization. That is, the vibrator 118, the heater 164, and the head display unit 117 function as an energization indicator for indicating that the skin-stimulating pulse current is supplied to the skin-stimulating body 3.

During the period from the time point t1 to the time point t4, the reference voltage V0 is updated a plurality of times in the order described in fig. 10. At a time point t2, the output voltage V on the light receiving side is lower than the reference voltage V0, so that the care level of the skin stimulus source 116 temporarily rises to "2", at the next time point t3, the output voltage V exceeds the reference voltage V0, so that the reference voltage V0 is updated, and the care level returns to "1". Since the reference voltage V0 is set to 2.4V at time t4, and then the reference voltage V0 is not updated, it is found that the skin abnormality detector 88 is aligned with the whitest portion of the skin of the user at time t 4. Of course, the voltage value of 2.4V is only an example, and when another user with a different skin color uses a beauty instrument, the reference voltage V0 changes. Even when one user continuously uses the beauty instrument, if the region of care changes, the reference voltage V0 may change in accordance with the change. Even when a user continuously uses a beauty apparatus for nursing one part, the reference voltage V0 may fluctuate due to the influence of daily living environment and the like.

Before the time point t5 to the time point t6, the output voltage V fluctuates between the reference voltage V0(2.4V) and the minimum voltage Vm (0.8V), and the care level of the skin stimulus source 116 fluctuates between "2" to "5". During this period, the head display unit 117 displays the care levels "2" to "5" with different colors. For example, green light may be displayed at care level "2", yellow light at care level "3", orange light at care level "4", and red light at care level "5". When the head display unit 117 displays light other than blue indicating the care level "1", it is possible to notify the user that the skin abnormality detection unit 88 has detected a skin abnormality. That is, the head display unit 117 of the present embodiment constitutes the notification body 89 that notifies the user that the skin abnormality detection unit 88 has detected a skin abnormality. Further, the user can recognize that the skin abnormality detection section 88 detects a skin abnormality by the increase in the care level of the vibrator 118, that is, the vibration and sound by the vibrator 118 becoming strong. The user may recognize that the skin abnormality detection unit 88 has detected a skin abnormality by the increase in the care level of the heater 164, that is, the increase in the surface temperature of the stimulation surface 3 a. That is, the vibrator 118 and the heater 164 constitute not only the skin stimulus source 116 but also the notification body 89 together with the head display section 117.

The vibrator 118, the heater 164, and the head display unit 117 function as an energization indicator of the pulse current for skin stimulation as described above. That is, the vibrator 118 and the heater 164 have 3 functions of the skin stimulus source 116, the notification body 89, and the energization display body, respectively, and the head display unit 117 has 2 functions of the notification body 89 and the energization display body. In contrast to the present embodiment, in the case of the system in which the vibrator 118, the heater 164, and the head display unit 117 are stopped when the pulse current of the treatment level "1" is supplied, and the vibrator 118 is driven when the pulse current of the treatment level "2" or more is supplied, the vibrator 118 and the like cannot be used as the current display unit, but functions as the skin stimulus source 116 or the notification unit 89 are left.

In the present embodiment, the color of the head display unit 117 is changed in accordance with the change in the care level, but instead of using a single color for the head display unit 117, the illuminance may be gradually increased in accordance with the increase in the care level. The color of the head display unit 117 at this time can be arbitrarily selected from blue, red, green, and the like. Further, a sound emitting unit such as a buzzer or a synthesized sound may be used instead of or in combination with the light emitting unit such as the head display unit 117. In this case, the tone of the sound unit is changed as the care level is changed, or the volume of the sound unit is increased in stages as the care level is increased, so that the user can recognize the change of the care level via the sense of hearing.

At time t6, the output voltage V on the light receiving side is 0.8V equal to the minimum voltage Vm. The control unit 115 at this time determines that the skin abnormality detection unit 88 faces the mole, sets the care level of the current source 175 and the vibrator 118 to "0" or more and "1" or less, and sets the care level of the heater 164 to "1". Then, the control unit 115 causes the head display unit 117 to blink with an arbitrary color. The user can recognize that the skin abnormality detection unit 88 is facing the moles, based on whether the head display unit 117 switches to the blinking display or whether the vibration and sound of the vibrator 118 are weak. The head display unit 117 when it is determined as a black mole may be in a color-change display state or a turned-off state in which the color changes every several seconds. In the present embodiment, each skin stimulus source 116 (current source 175, vibrator 118, and heater 164) is driven even when a nevus is determined, but instead of this, at least one care level of the skin stimulus sources 116 may be set to "0" when a nevus is determined, and the stimulus applied from the skin stimulus sources 116 to the skin surface may be stopped.

At time t7, the user separates the skin stimulator 3 from the skin surface and the electrically closed circuit disappears, and the control unit 115 that cannot detect the electrically closed circuit stops the irradiation of the inspection light from the light emitting element 138 and switches the pulse current supplied from the current source 175 to the skin stimulator 3 and the grip electrode 10 from the pulse current for skin stimulation to the weak pulse current for skin detection. Further, the control unit 115 sets the treatment level of the vibrator 118 to "0", sets the treatment level of the heater 164 to "1", sets the state to the warm-up state, and turns off the head display unit 117. At the next time point t8, the control unit 115 detects the electrical closed circuit again, and restarts irradiation of the inspection light from the light emitting element 138 and the like. When 3 minutes has elapsed since the timer 176 started counting, the control unit 115 turns off the skin stimulus source 116, and cuts off the power supply to the light emitting element 138 and the head display unit 117 to stop the cosmetic device (time t 9). That is, the power supply of the beauty instrument is cut off. When the user operates the power switch 103 before 3 minutes has elapsed from the start of the timer, the control unit 115 stops the cosmetic device and turns off the power of the cosmetic device at the same time point as when 3 minutes has elapsed.

As shown in fig. 12, 3 determination regions bounded by the minimum voltage Vm (0.8V) and the maximum voltage Vm (2.8V) can be assumed for the output voltage V based on the light receiving amount of the light receiving element 139. When the output voltage V is included in the "mole determination region" of the minimum voltage Vm, the control unit 115 determines that the skin stimulator 3 faces the mole. When the output voltage V is included in the "sheet determination region" exceeding the maximum voltage VM, the control unit 115 determines that the cotton pad M is attached to the outer surface of the skin stimulator 3. The upper limit value of "sheet determination region" of 3.0V is substantially equal to the voltage value output from the operational amplifier 179 when the inspection light emitted from the light emitting element 138 is reflected by 100%. When the output voltage V is included in the "skin state determination region" that is equal to or higher than the minimum voltage Vm and equal to or lower than the maximum voltage Vm, the control unit 115 determines whether the skin state is normal or abnormal by comparing the output voltage V with the reference voltage V0. The initial value of the reference voltage V0 is set to a low value close to the minimum voltage Vm within the "skin state determination region", and preferably varies (rises) in accordance with the skin color of the user within the region. The reference voltage V0 is not lower than the minimum voltage Vm or higher than the maximum voltage Vm.

On the other hand, the timing chart of fig. 13 shows a case where the "skin abnormality detection mode" is selected in a state where the white cotton pad M is attached to the outer surface of the skin irritant 3. Before time t0 to time t1, the output voltage V on the light receiving side is higher than 3.0V of the maximum voltage VM, as shown in fig. 11 explained earlier, but at time t1 when irradiation of the inspection light is started, since the cotton pad M is attached. At the next time point t10, the control unit 115 receiving the high output voltage V determines that the cotton pad M is in the attached state, stops the irradiation of the inspection light, ends the "skin abnormality detection mode", and shifts to the normal "ion introduction mode". When this transition is performed, the head display unit 117 switches to red blinking display. Accordingly, the user can recognize that the skin abnormality detection section 88 does not function because the cotton pad M is mounted. After time point t10, the output of each skin stimulus source 116 (current source 175, heater 164, vibrator 118) is maintained at a fixed value corresponding to care level "1" in the "skin abnormality detection mode". Time points t11 to t13 in fig. 13 are the same as time points t7 to t9 in fig. 11, and therefore, description thereof is omitted. The time interval between time t1 and time t10 is extremely short, but in fig. 13, for convenience of illustration, the interval is made longer than it is.

In the present embodiment, in order to make the user know that the function of the skin abnormality detection unit 88 is stopped at time t10, the head display unit 117 is switched to the blinking red display, but instead of this, for example, the head display unit 117 may be lit or blinked in a different color from that when the skin abnormality detection unit 88 is driven, or may be a color-changing display in which the color changes at regular intervals. In addition, instead of or in addition to changing the display mode of the head display unit 117, control may be performed to change the operating state of an audio unit such as a buzzer. The sound control may be performed such that the sound unit is switched from the stopped state to the activated state, or the volume or tone of the sound unit is changed. A synthesized voice notifying the user of the stop of the function of the skin abnormality detecting unit 88 by a language may be used.

(example 2)

Fig. 14 shows a cosmetic device of example 2 of the present invention, which is different from example 1 in that it includes a pair of upper and lower light

path forming members

140 and 141. The two optical

path forming members

140 and 141 are coupled and fixed by a plurality of screws 181, and the lower surface of the 2 nd optical path forming member 141 and the upper surface of the 1 st optical path forming member 140 which are in close contact with each other constitute

joint surfaces

149 and 158, respectively. A pair of left and right optical path grooves 150 and an engagement recess 151 located between the optical path grooves 150 are formed in a recessed manner on the joint surface 149 of the 2 nd optical path formation member 141. A pair of left and right optical path grooves 159 facing the optical path groove 150 of the 2 nd optical path forming body 141 are formed in a recessed manner on the joint surface 158 of the 1 st optical path forming body 140, and an engaging convex portion 160 engaging with the engaging concave portion 151 of the 2 nd optical path forming body 141 is provided in a protruding manner. The engagement concave portion 151 and the engagement convex portion 160 are engaged with each other to restrict the mutual displacement of the two light

path forming members

140 and 141 along the

joint surfaces

149 and 158, and the two light

path forming members

140 and 141 can be easily coupled and fixed by the screw 181. The rest is the same as in example 1, and therefore the same components are given the same reference numerals and their description is omitted.

As described above, the cosmetic device according to each embodiment of the present invention includes the skin stimulator 3 that is in contact with the skin surface and applies current stimulation or the like to the skin surface, and the skin abnormality detection unit 88 that optically detects abnormality on the skin surface, and the measurement unit 143 is disposed in the stimulation surface 3a of the skin stimulator 3, and the measurement unit 143 is configured in front of the lens 142 of the skin abnormality detection unit 88. According to this cosmetic device, since the measurement portion 143 faces the skin surface when the stimulation surface 3a is brought into contact with the skin surface, the skin surface can be treated by the skin stimulator 3 while the skin abnormality detection portion 88 checks the state of the skin surface. Therefore, compared to a conventional cosmetic method in which a skin health sensor and a cosmetic device are used separately, the time required for detection and care of skin abnormality can be significantly shortened. Moreover, the position of the abnormal portion on the skin surface can be accurately specified in real time, and the specified abnormal portion can be treated reliably and intensively. When the skin abnormality detection unit 88 detects an abnormality on the skin surface, the output of the skin stimulus source 116 is automatically increased and the notification unit 89 including the head display unit 117 is operated, the output of the skin stimulus source 116 is immediately reflected on the detection result of the skin abnormality detection unit 88, and the user can be cared for the abnormal portion intensively and intensively without giving trouble to the switching operation of the output, and the user can be notified that there is a skin abnormality in the portion facing the skin stimulus unit 3, and the intensive care of the portion can be promoted.

In the above embodiment, the amount of light received by the light receiving unit 139 is converted into a voltage value and then output to the control unit 115, but the electrical output value may be a current value or a power value. The inspection light irradiated from the light emitting unit 138 may be ultraviolet light in a UVA region (315 to 380nm) or a UVB region (280 to 315nm), for example, in addition to violet visible light. When ultraviolet light is used as the inspection light, skin abnormality such as spots can be detected with high accuracy equal to or higher than that in the case of using violet visible light. Since the output of the inspection light is extremely weak and sufficient, the skin surface is not damaged even when the inspection light composed of ultraviolet rays is used, but it is effective to intermittently irradiate the inspection light when the output of the inspection light needs to be increased for structural reasons.

When the lens 142 is disposed in the window opening 35 of the skin stimulator 3, it is possible to prevent liquid, dust, or the like from entering the skin head 2 through the window opening 35, and to prevent the light emitting element 138, the light receiving element 139, and the like from being damaged by foreign matter entering through the window opening 35. The transmitted light amount of the inspection light can also be adjusted by the lens 142. However, even without the lens 142, the light emitting element 138 can emit the inspection light and the light receiving element 139 can receive the reflected light, and therefore the lens 142 may be omitted if necessary. When the lens 142 is omitted, the space inside the window opening 35 constitutes the measurement section 143. The light emitting element 138 and the light receiving element 139 need not be disposed in the skin head 2, and may be disposed inside the main body case 1. In this case, the optical path between the two

elements

138 and 139 and the lens 142 may be formed by an optical fiber or the like. The skin abnormality detection unit 88 may include a camera, for example, instead of the light emitting unit 138 and the light receiving unit 139. In this case, the image of the skin surface captured by the camera is sent to the determination unit provided on the control board 7, and the determination unit determines in real time whether there is a skin abnormality such as a spot.

The light emitting member 117 as the notification member 89 is not limited to the closed ring shape as in the above-described embodiment, and may be formed in an intermittent ring shape, a U-shape, a semicircular shape, or the like. The ring shape in the present invention includes a U shape, a semicircular shape, and the like. The light emitting body 117 may be provided in the main body case 1 in addition to the skin head 2. The light emitting body 117 is preferably provided on the head support portion 100 not covered by the hand, not the grip portion 101 covered by the hand of the user when the cosmetic device is used. Both the head support portion 100 and the grip portion 101 may be straddled. Note that the notification member 89 may be constituted by, for example, a buzzer for emitting sound, in addition to the light emitting member 117, the vibrator 118, and the heater 164. The notification body 89 may be formed of a display panel such as a liquid crystal panel or an organic EL panel, and characters such as "on spot detection", "on moles detection", and "on sheet attachment" may be displayed on the display panel at this time. The skin irritant 3 may be formed of a conductive resin or a conductive rubber other than metal. In the case of a cosmetic device in which a pulse current is not supplied to the skin stimulator 3, the skin stimulator 3 may be formed of an insulating resin or an insulating rubber.

The cosmetic device of each of the above embodiments can be implemented in the following manner.

A cosmetic device is provided with: a skin stimulating body 3 including a stimulating face 3a which is in contact with and gives a stimulus to a skin surface; a skin stimulus source 116 for giving a physical cosmetic stimulus to the skin stimulator 3; a control unit 115 that controls the skin stimulus source 116; and a skin abnormality detection section 88 for optically detecting an abnormality on the skin surface,

the skin abnormality detection unit 88 includes a measurement unit 143 opposed to the measurement target portion on the skin surface,

the measurement unit 143 is disposed inside the outer contour line of the stimulation surface 3a in a front view facing the stimulation surface 3 a.

In the above-described configuration, the physical cosmetic stimulus is a generic term for current stimulus, vibration stimulus, thermal stimulus (warm stimulus and cold stimulus), and the like. The measurement unit 143 facing the measurement portion on the skin surface is preferably constituted by the surface of the lens (detection head) exposed from the stimulation surface 3 a. The lens functions as a waterproof unit or a dustproof unit of the beauty instrument, a protection unit of a sensor or the like constituting the skin abnormality detection unit 88, a unit for adjusting the amount of transmitted light, or the like. However, since the skin condition can be measured without a lens, the measurement unit 143 may be configured in a space without a lens.

The cosmetic device of the present invention described above includes: a skin stimulating body 3 including a stimulating face 3a which is in contact with and gives a stimulus to a skin surface; and a skin abnormality detecting unit 88 for optically detecting abnormality on the skin surface, wherein a measuring unit 143 of the skin abnormality detecting unit 88 is disposed inside the contour line of the stimulation surface 3 a. According to this cosmetic device, since the measurement portion 143 faces the skin surface when the stimulation surface 3a is brought into contact with the skin surface, the skin surface can be treated by the skin stimulator 3 while the skin abnormality detection portion 88 checks the state of the skin surface. Therefore, compared to a conventional cosmetic method in which a skin health sensor and a cosmetic device are used separately, the time required for detection and care of skin abnormality can be significantly shortened. Moreover, the position of the abnormal portion on the skin surface can be accurately specified in real time, and the specified abnormal portion can be treated reliably and intensively. Further, when the measurement section 143 is disposed in the outer contour of the stimulation surface 3a, it is possible to detect and care for skin abnormality in the same posture, and therefore, it is possible to save the trouble of changing the posture of the beauty apparatus and exchanging the hand. In contrast to the present invention, when the skin stimulating body and the skin abnormality detecting unit are disposed at different positions of the beauty apparatus, the posture of the beauty apparatus is changed and the user has to change the posture when the skin abnormality detection is shifted to the nursing care.

A cosmetic device, when a skin abnormality detection unit 88 detects an abnormality on the skin surface, a control unit increases the output of a skin stimulus source.

According to the beauty instrument in which the control unit 115 boosts the output of the skin stimulus source 116 when the skin abnormality detection unit 88 detects an abnormality on the skin surface, the detection result of the skin abnormality detection unit 88 is immediately reflected on the intensity of the skin stimulus, and thus the detected abnormal portion can be cared strongly and intensively. Further, when skin abnormality is detected, skin stimulation is automatically enhanced, so that it is possible to save the trouble of the user in switching the output of the skin stimulation source 116.

A cosmetic device comprises a notification body 89 for emitting at least one of sound, light and vibration,

when the skin abnormality detection unit 88 detects an abnormality on the skin surface, the control unit 115 operates the notification body 8.

When the skin abnormality detection unit 88 detects an abnormality on the skin surface, the control unit 115 causes the notification body 8 to operate, and the cosmetic apparatus can immediately notify the user of the abnormal portion on the skin surface by sound or the like, thereby urging intensive care of the portion.

A cosmetic device has a measurement section 143 disposed at a central portion of a stimulation surface 3a of a skin stimulator 3.

When the measuring section 143 is disposed at the center of the stimulation surface 3a of the skin stimulator 3, the user can accurately specify the abnormal portion on the skin surface, as compared with the case where the measuring section 143 is provided at the peripheral portion of the stimulation surface 3 a. When the user who has determined that there is skin abnormality in the portion in contact with the central portion of the stimulation surface 3a stops the beauty instrument at this position, the abnormal portion and the periphery thereof can be treated uniformly.

A skin stimulator 3 is formed of an electric conductor and constitutes a skin detection sensor for detecting contact between a stimulation surface 3a and a skin surface,

the control unit 115 controls the driving state of the skin abnormality detection unit 88 based on the detection signal of the skin detection sensor.

When the skin irritant 3 is formed of an electric conductor and the skin detection sensor for detecting the contact of the irritation surface 3a with the skin surface is configured, the contact of the irritation surface 3a with the skin surface can be detected easily and accurately, as compared with the case where the skin detection sensor is separated from the skin irritant 3. When the control unit 115 controls the driving state of the skin abnormality detection unit 88 based on the detection signal of the skin detection sensor, the skin abnormality detection unit 88 can be driven without waste in the state where the stimulation surface 3a is separated from the skin surface, and the power consumption of the cosmetic device can be suppressed.

A cosmetic device comprises a skin head 2 including a skin stimulator 3, and a main body case 1,

the body case 1 is provided with a head support part 100 for supporting the skin head 2 and a grip part 101 usable as a grip,

at least a part of the light emitting body 117 constituting the notification body 89 is provided on the head support portion 100 or the skin head 2.

In a state where the user holds the grip portion 101 of the body casing 1, the head support portion 100 and the skin head 2 are more likely to enter the field of view of the user than the grip portion 101, and are not blocked by the hand of the user as in the grip portion 101. Therefore, when at least a part of the light emitter 117 constituting the notification body 89 is provided on the head support section 100 or the skin head 2, the user can easily recognize the light emitter 117, and thus the user can be reliably notified of the fact that the skin abnormality detection section 88 detects an abnormality on the skin surface.

A cosmetic device, a light emitting body 117 is formed in an intermittent or continuous ring shape.

When the light emitting body 117 is formed in an intermittent or continuous ring shape, the appearance or contour of the beauty instrument can be made more prominent in a state where a wider area is irradiated than in a case where a dot-shaped light emitting body 117 is locally arranged. Therefore, the cosmetic device can be improved in design to improve its commercial value.

A cosmetic device comprises a light emitting body 117 disposed on the outer peripheral surface of a skin head 2 between a skin stimulator 3 and a head support 100,

a light shielding wall 128 is formed between the stimulation surface 3a of the skin stimulator 3 and the light emitter 117,

in the front view facing the stimulating surface 3a, the light emitting surface of the light emitter 117 is located inside the outer contour line of the light blocking wall 128, and the light of the light emitter 117 is radiated to the outside of the outer contour line.

According to the cosmetic device in which the light emitter 117 is positioned inside the outer contour line of the light blocking wall 128 and emits light to the outside of the outer contour line, when the user is looking at the stimulation surface 3a of the skin stimulator 3, the light emitting surface of the light emitter 117 is blocked by the light blocking wall 128 and is not seen by the eyes of the user, and only the light emitted from the light emitter 117 can be reflected on the eyes of the user. Therefore, it is possible to eliminate the dazzling light irradiated to the user and to create a dream atmosphere surrounding the skin irritant 3 with a hazy and soft light, further improving the design of the cosmetic instrument.

A cosmetic device, the notification body 89 includes a vibrator 118.

When the notification body 89 includes the vibrator 118, the user can be notified of the skin abnormality detection section 88 that the abnormality of the skin surface has been detected by the vibration of the vibrator 118 via the tactile sense. Therefore, the presence of skin abnormality can be reliably notified also to a user with busy eyes or a user in a closed eye state.

A cosmetic device, a skin abnormality detection section 88 includes: a light emitting unit 138 that irradiates the measurement target portion on the skin surface facing the measurement unit 143 with the inspection light; and a light receiving unit 139 for receiving the inspection light reflected by the measurement portion,

when the amount of light received by the light receiving unit 139 is equal to or greater than a predetermined reference light amount, the control unit 115 determines that the measured unit is in a normal state, and when the amount of light received is less than the reference light amount, the control unit 115 determines that the measured unit is in an abnormal state, and performs at least one of control for increasing the output of the skin stimulus source 116 and control for operating the notification body 89.

When the inspection light is irradiated from the light emitting unit 138 to the measurement portion on the skin surface, the reflected light amount at this time, that is, the light receiving amount of the light receiving unit 139 is equal to or more than a predetermined reference light amount, it is determined that the measurement portion is in a normal state, and conversely, when the light receiving amount is less than the reference light amount, it is determined that the measurement portion is in an abnormal state. According to this determination method, since the skin condition can be determined on a simple and quantitative basis such as the light amount, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. When the abnormal portion of the skin surface enhances the output of the skin stimulus source 116, the portion can be treated intensively and intensively, and the trouble of the user in switching the output of the skin stimulus source 116 can be saved. When the notifying body 89 is activated at an abnormal portion on the skin surface, the user can be immediately notified of the abnormal portion, and the user can be urged to perform intensive care of the abnormal portion.

A cosmetic device, a skin abnormality detection section 88 includes: a light emitting unit 138 that irradiates the measurement target portion on the skin surface facing the measurement unit 143 with the inspection light; and a light receiving unit 139 that receives the inspection light reflected by the measurement portion and outputs an electrical output value corresponding to the amount of light received,

the control unit 115 determines the state of the measurement target unit by comparing the electrical output value of the light receiving unit 139 with a predetermined electrical reference value, and performs at least one of control for increasing the output of the skin stimulus source 116 and control for operating the notification body 89 when it is determined that the measurement target unit is in an abnormal state.

The light emitting unit 138 emits the inspection light to the skin surface, and the light receiving unit 139 that receives the reflected light outputs electrical output values such as current and voltage corresponding to the amount of light received. Then, the electrical output value of the light receiving unit 139 is compared with a predetermined electrical reference value to determine the state of the skin surface. According to this determination method, since the skin condition can be determined on a simple and quantitative basis, such as an electrical output value, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. When the abnormal portion of the skin surface enhances the output of the skin stimulus source 116, the portion can be treated intensively and intensively, and the trouble of the user in switching the output of the skin stimulus source 116 can be saved. When the notifying body 89 is activated at an abnormal portion on the skin surface, the user can be immediately notified of the abnormal portion, and the user can be urged to perform intensive care of the abnormal portion.

A cosmetic device, a control unit 115 includes a storage unit 177 for storing an electric reference value,

when the amount of light received corresponding to the electrical output value of the light receiving section 139 is larger than the reference light amount indicated by the electrical reference value stored in the storage section 177, the electrical output value is stored in the storage section 177 as a new electrical reference value.

The amount of inspection light reflected by the skin surface of the user increases as the skin becomes whiter, and decreases as the skin becomes darker. Therefore, when the reflected light amount of the average skin color is set as the reference light amount, when a user who is whiter than the average skin color uses a beauty instrument, the reflected light amount is higher than the reference light amount even in an abnormal portion such as a patch, and the abnormal portion may be erroneously determined as normal. On the other hand, when the user who is darker than the average skin color uses the cosmetic device, the reflected light amount is lower than the reference light amount in the normal portion, and the normal portion may be erroneously determined as abnormal. Therefore, in the present invention, when the amount of light received corresponding to the electrical output value of the light receiving section 139 is larger than the reference light amount indicated by the electrical reference value stored in the storage section 177, the output value is stored in the storage section 177 as a new electrical reference value. Accordingly, since the user moves the beauty instrument along the skin surface and the electrical reference value is updated every time the measurement unit 143 is facing a whiter portion, the electrical reference value can be set according to the whitest portion of the user. As described above, according to the present invention, it is possible to set an appropriate electrical reference value corresponding to the skin color of the user, and accurately detect skin abnormality such as skin spots regardless of the skin color.

A cosmetic device is provided with: a skin stimulating body 3 including a stimulating face 3a which is in contact with and gives a stimulus to a skin surface; a skin stimulus source 116 for giving a physical cosmetic stimulus to the skin stimulator 3; and a skin abnormality detection section 88 for optically detecting an abnormality on the skin surface,

the skin abnormality detection unit 88 includes: a measurement unit 143 facing the measurement target portion on the skin surface; a light emitting unit 138 that irradiates the measurement target with inspection light; and a light receiving unit 139 for receiving the inspection light reflected by the measurement portion,

the light receiving amount of the light receiving unit 139 is set to a predetermined reference light amount, a predetermined upper limit reference light amount larger than the reference light amount,

when the amount of light received by the light receiving unit 139 is equal to or greater than the reference light amount and equal to or less than the upper limit reference light amount, it is determined that the measured unit is in the normal state, when the amount of light received is less than the reference light amount, it is determined that the measured unit is in the abnormal state, and when the amount of light received is greater than the upper limit reference light amount, it is determined that the measured unit 143 has an obstacle (for example, covered with the white sheet M) that is an obstacle to detect the skin.

When the inspection light is irradiated from the light emitting unit 138 to the portion to be measured on the skin surface, the reflected light amount at this time, that is, the light receiving amount of the light receiving unit 139 is equal to or more than a predetermined reference light amount and equal to or less than the upper limit reference light amount, it is determined that the portion to be measured is in the normal state, and conversely, when the light receiving amount is less than the reference light amount, it is determined that the portion to be measured is in the abnormal state. According to this determination method, since the skin condition can be determined on a simple and quantitative basis such as the light amount, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. Further, when the light receiving amount of the light receiving unit 139 is higher than the upper limit reference light amount, if it is determined that the measuring unit 143 has an obstacle (for example, covered with the white sheet M) that is an obstacle on the skin, it is possible to avoid the discomfort that the obstacle such as the sheet M is mistakenly recognized as a white skin surface, and the output of the skin stimulus source 116 is controlled based on the mistaken recognition, and the skin surface cannot be appropriately cared.

the skin abnormality detection unit 88 includes: a measurement unit 143 facing the measurement target portion on the skin surface; a light emitting unit 138 that irradiates the measurement target with inspection light; and a light receiving unit 139 that receives the inspection light reflected by the measurement portion and outputs an electrical output value corresponding to the amount of light received,

the electric output value of the light receiving unit 139 is set to a predetermined electric reference value and a predetermined upper limit electric reference value larger than the electric reference value,

when the electrical output value of the light receiving unit 139 is equal to or greater than the reference light amount and equal to or less than the upper limit electrical reference value, it is determined that the measured portion is in the normal state, when the electrical output value is lower than the electrical reference value, it is determined that the measured portion is in the abnormal state, and when the electrical output value is higher than the upper limit electrical reference value, it is determined that the measured portion 143 has an obstacle (for example, covered with the white sheet M) that is an obstacle to detect the skin.

The light emitting unit 138 emits the inspection light to the measurement target portion on the skin surface, and the light receiving unit 139 that receives the reflected light outputs electrical output values such as current and voltage according to the amount of light received. Then, when the electrical output value of the light receiving unit 139 is equal to or greater than the predetermined electrical reference value and equal to or less than the upper electrical reference value, it is determined that the measured portion is in the normal state, and conversely, when the electrical output value is lower than the electrical reference value, it is determined that the measured portion is in the abnormal state. According to this determination method, since the skin condition can be determined on a simple and quantitative basis, such as an electrical output value, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. Further, when the electrical output value of the light receiving unit 139 is higher than the upper limit electrical reference value, if it is determined that there is an obstacle (for example, covered with the white sheet M) that is an obstacle in detecting the skin in the measuring unit 143, it is possible to avoid the discomfort that the skin surface cannot be appropriately cared because the output of the skin stimulus source 116 is controlled based on the erroneous recognition that the skin surface is erroneously recognized as a skin surface with white skin color by the obstacle such as the sheet M.

A cosmetic device performs at least one of control for enhancing the output of a skin stimulus source 116 and control for operating a notification body 89 for notifying the abnormal state of the skin surface when it is determined that a measured portion of the skin surface is in an abnormal state.

When the abnormal portion of the skin surface enhances the output of the skin stimulus source 116, the portion can be treated intensively and intensively, and the trouble of the user in switching the output of the skin stimulus source 116 can be saved. When the notifying body 89 is activated at an abnormal portion on the skin surface, the user can be immediately notified of the abnormal portion, and the user can be urged to perform intensive care of the abnormal portion.

When it is determined that the measurement section 143 has an obstacle (for example, covered with a white sheet M) that is an obstacle to detect the skin, the cosmetic apparatus performs at least one of control to stop the driving of the skin abnormality detection section 88 and control to operate the notification body 89.

Since the measurement of the skin condition by the skin abnormality detection unit 88 is not possible in a state where the measurement unit 143 is covered with an obstacle such as the sheet M, when the driving of the skin abnormality detection unit 88 is stopped in this case, it is possible to reliably prevent the skin abnormality detection unit 88 from continuing driving uselessly and increasing the power consumption. In this case, when the notification body 89 is activated, the user is notified that the measurement section 143 is covered with an obstacle such as the sheet body M and the skin abnormality detection section 88 is not activated, and the user can be prompted to take appropriate measures to remove the obstacle such as the sheet body M.

the skin abnormality detection unit 88 includes: a light emitting unit 138 that irradiates an examination light to a measurement area on the skin surface; and a light receiving unit 139 for receiving the inspection light reflected by the measurement portion,

the light receiving amount of the light receiving unit 139 is set to a predetermined reference light amount, a predetermined lower limit reference light amount smaller than the reference light amount,

the measured portion is determined to be in a normal state when the amount of light received by the light receiving portion 139 is equal to or greater than the reference light amount, is determined to be in an abnormal state when the amount of light received is less than the reference light amount and equal to or greater than the lower limit reference light amount, and is determined to be a nevus instead of an abnormal state when the amount of light received is less than the lower limit reference light amount.

When the inspection light is irradiated from the light emitting unit 138 to the measurement portion on the skin surface, the reflected light amount at this time, that is, the light receiving amount of the light receiving unit 139 is equal to or more than a predetermined reference light amount, it is determined that the measurement portion is in a normal state, and conversely, when the light receiving amount is lower than the reference light amount and equal to or more than a lower limit reference light amount, it is determined that the measurement portion is in an abnormal state. According to this determination method, since the skin condition can be determined on a simple and quantitative basis such as the light amount, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. Further, when the amount of light received by the light receiving unit 139 is lower than the lower limit reference light amount and it is determined that the measured unit is not in an abnormal state but rather is a moles, it is possible to reliably detect moles that do not require care and to prevent useless care from being performed on the part.

the skin abnormality detection unit 88 includes: a light emitting unit 138 that irradiates an examination light to a measurement area on the skin surface; and a light receiving unit 139 that receives the inspection light reflected by the measurement portion and outputs an electrical output value corresponding to the amount of light received,

the electrical output value of the light receiving unit 139 is set to a predetermined electrical reference value and a predetermined lower electrical reference value smaller than the electrical reference value,

when the electrical output value of the light receiving unit 139 is equal to or greater than the electrical reference value, it is determined that the measured portion is in a normal state, when the electrical output value is lower than the electrical reference value and equal to or greater than the lower limit electrical reference value, it is determined that the measured portion is in an abnormal state, and when the electrical output value is lower than the lower limit electrical reference value, it is determined that the measured portion is not in an abnormal state but rather is a mole.

The light emitting unit 138 emits the inspection light to the measurement target portion on the skin surface, and the light receiving unit 139 that receives the reflected light outputs electrical output values such as current and voltage according to the amount of light received. Then, when the electric output value of the light receiving unit 139 is equal to or greater than a predetermined electric reference value, it is determined that the measured portion is in a normal state, and conversely, when the electric output value is lower than the electric reference value and equal to or greater than a lower limit electric reference value, it is determined that the measured portion is in an abnormal state. According to this determination method, since the skin condition can be determined on a simple and quantitative basis, such as an electrical output value, the configuration of the skin abnormality detection unit 88 can be simplified, and the skin condition can always be accurately determined. Further, when it is determined that the measured part is not in an abnormal state but a black mole if the electric output value of the light receiving part 139 is lower than the lower limit electric reference value, it is possible to reliably detect a black mole that does not require care, and to prevent useless care for the black mole.

A cosmetic device performs at least one of control for attenuating or stopping the output of a skin stimulus source 116 and control for operating a notification body 89 when the amount of light received by a light receiving unit 139 is lower than a lower limit reference light amount or the electrical output value of the light receiving unit 139 is lower than a lower limit electrical reference value and it is determined that a portion to be measured on the skin surface is not an abnormal state but a black mole.

When it is determined that the part to be measured on the skin surface is not in an abnormal state but rather a moles, when the output of the skin stimulus source 116 is attenuated or stopped, useless care for moles can be more reliably prevented. In this case, when the notifying body 89 is activated, the user can be immediately notified of the mole to be measured, and can be prompted to pay attention without giving unnecessary stimulation to the mole.

A cosmetic device, in a state where a skin stimulating body 3 gives a cosmetic stimulus to the skin surface, a light emitting body 117 and/or a vibrator 118 are operated,

when the skin abnormality detection unit 88 detects a skin abnormality, the control unit 115 changes the operation state of the light emitter 117 and/or the vibrator 118.

When the light emitting unit 117 and/or the vibrator 118 is operated in a state where the skin irritant 3 applies cosmetic stimulation to the skin surface, the user can more reliably recognize that skin irritation is output from the skin irritant 3. Further, according to the configuration in which the operating state of the light emitter 117 and/or the vibrator 118 is changed when skin abnormality is detected, the light emitter 117 and/or the vibrator 118 can be used not only as the display body indicating that skin irritation is output from the skin irritant 3 but also as the notification body 89 notifying that skin abnormality is detected, and therefore, compared with the case where the display body and the notification body 89 are separately provided, the number of parts constituting the beauty equipment can be reduced, and the cost can be reduced accordingly.

A cosmetic device performs control for increasing the illuminance of a light emitter 117 and/or control for increasing the vibration level of a vibrator 118 when skin abnormality is detected.

When a skin abnormality is detected, if control is performed to increase the illuminance of the light emitter 117 and/or control is performed to increase the vibration level of the vibrator 118, the user can intuitively recognize that a skin abnormality is detected.

A cosmetic instrument, wherein the inspection light emitted from a light emitting section 138 is visible light having a peak in a violet wavelength region.

The inspection light emitted from the light emitting unit 138 is preferably an electromagnetic wave having a reflectance greatly different between a normal portion and an abnormal portion on the skin surface, that is, an electromagnetic wave easily absorbed by melanin which causes spots or the like. As such an electromagnetic wave, violet visible light can be cited. When visible light having a peak in the violet wavelength region is used as the inspection light, skin abnormality such as spots can be detected with higher accuracy than when visible light having a longer wavelength is used. Further, when the inspection light is visible light, the user can clearly recognize that the inspection light is irradiated from the light emitting unit 138 without damaging the skin surface.

A cosmetic instrument, inspection light irradiated from a light emitting part 138 is ultraviolet rays in a UVA region or a UVB region.

When ultraviolet light in the UVA region or UVB region is used as the inspection light, skin abnormality such as spots can be detected with high accuracy as or more than that in the case of using visible light having a peak in the violet wavelength region.

A light emitting unit 138 intermittently emits inspection light.

When the inspection light composed of ultraviolet rays is intermittently irradiated, damage to the skin surface can be reduced as compared with the case where the inspection light is continuously irradiated. In general, since the output of the inspection light is extremely weak and sufficient, the skin surface is not damaged even when the inspection light composed of ultraviolet rays is used, but when the output of the inspection light needs to be increased for structural reasons, it is effective to intermittently irradiate the inspection light.

In a cosmetic device, the skin stimulus source 116 includes a current source 175,

a skin stimulation current is supplied from the current source 175 to the skin stimulator 3 formed of a conductor.

When a skin-stimulating current is supplied from the current source 175 to the skin stimulator 3, effective cosmetic treatment such as iontophoresis can be performed on the skin surface including the abnormal portion detected by the skin abnormality detection unit 88, such that the cosmetic liquid permeates into the skin surface.

A cosmetic instrument comprises a grip electrode 10 provided on a grip part 101 of a body case 1,

the grip electrode 10 is brought into contact with the surface of the hand, and the stimulation surface 3a of the skin stimulator 3 is brought into contact with the skin surface, so that a closed circuit detectable by the control section 115 is formed by the cosmetic apparatus and the human body,

the control unit 115 controls the current source 175 to supply the skin stimulating current to the skin stimulator 3 in a state where the closed circuit is detected.

The grip electrode 10 is in contact with the surface of the hand and the stimulation surface 3a of the skin stimulator 3 is in contact with the skin surface, so that when a closed circuit detectable by the control unit 115 is formed by the cosmetic device and the human body, the skin stimulator 3 can be operated as a skin detection sensor for detecting the contact of the stimulation surface 3a with the skin surface. Accordingly, in comparison with the case where the skin detection sensor is provided at a position different from the skin irritant 3, it is possible to easily and accurately detect that the irritant surface 3a is in contact with the skin surface. When the control unit 115 detects that the skin stimulation current is supplied to the skin stimulator 3 in the state of the closed circuit, the supply of the skin stimulation current is stopped in the state of the closed circuit not being formed, that is, in the state of the stimulation surface 3a being away from the skin surface, and the power consumption of the beauty instrument can be suppressed.

A cosmetic device, a skin abnormality detection section 88 includes: a light emitting unit 138 that irradiates the measurement target portion on the skin surface facing the measurement unit 143 with the inspection light; a light receiving unit 139 that receives the inspection light reflected by the measurement target; and the 1 st and 2 nd optical

path formation bodies

140 and 141,

the 1 st light path formation body 140 and the 2 nd light path formation body 141 are joined via

joint surfaces

149 and 158,

light path grooves

150 and 159 for dividing the light path of the inspection light are formed along the

joint surfaces

149 and 158 of the pair of light

path forming members

140 and 141.

When the

optical path grooves

150 and 159 for dividing the optical path of the inspection light are formed along the joining

surfaces

149 and 158 of the pair of optical

path forming bodies

140 and 141 in a recessed manner, the optical path of the inspection light can be easily and accurately formed only by joining the optical

path forming bodies

140 and 141 to each other when the cosmetic device is assembled.

In a cosmetic device, a 1 st optical path formation member 140 faces an inner surface of a stimulation surface 3a of a skin stimulator 3,

the 2 nd optical path forming body 141 includes the

housing portions

147 and 148 of the light emitting portion 138 and the light receiving portion 139.

When the 2 nd light path forming member 141 includes the

housing portions

147 and 148 of the light emitting portion 138 and the light receiving portion 139, the number of components constituting the skin abnormality detecting portion 88 can be reduced compared to a case where a holder such as the light emitting portion 138 is separately prepared, and the cost can be reduced accordingly.

A cosmetic device, the skin stimulus source 116 includes a heater 164 for heating the skin stimulus 3,

a heater supporting portion 165 for supporting the heater 164 is formed on the surface of the 1 st light path formation member 140 facing the skin stimulator 3.

When the skin stimulator 3 is heated by the heater 164, effective cosmetic treatment for applying thermal stimulation to the skin surface including the abnormal portion detected by the skin abnormality detection unit 88 can be performed. When the heater support portion 165 for supporting the heater 164 is formed on the 1 st light path forming body 140, the number of components constituting the skin abnormality detection portion 88 can be reduced compared to the case where a holder for the heater 164 is separately prepared, and the cost can be reduced accordingly.

A cosmetic device, the skin irritant source 116 comprises a current source 175, a heater 164 for heating the skin irritant 3.

When the skin stimulus source 116 includes the current source 175 and the heater 164, a thermal stimulus may be applied to the skin surface including the abnormal portion detected by the skin abnormality detection unit 88 in addition to the current stimulus. Therefore, a plurality of stimuli are given to the skin surface, and more effective cosmetic treatment can be performed.

A cosmetic device, a skin stimulus source 116 includes a vibrator 118 for vibrating a skin stimulus body 3,

the vibrator 118 is supported by a vibrator holder 120, is accommodated inside the skin irritant 3,

the skin abnormality detector 88 is held and fixed between the skin stimulator 3 and the vibrator holder 120.

When the skin stimulator 3 is vibrated by the vibrator 118, effective cosmetic treatment for applying a vibration stimulus to the skin surface including the abnormal portion detected by the skin abnormality detection unit 88 can be performed. When the skin abnormality detection unit 88 is held and fixed between the skin stimulator 3 and the vibrator holder 120, the posture of the skin abnormality detection unit 88 can be stabilized, and the reliability of detection by the skin abnormality detection unit 88 can be improved.

the substrate 137 supporting the light emitting unit 138 and the light receiving unit 139 is sandwiched and fixed by the skin irritant 3 and the vibrator holder 120 together with the skin abnormality detecting unit 88.

When the substrate 137 supporting the light emitting section 138 and the light receiving section 139 is sandwiched and fixed by the skin irritant 3 and the vibrator holder 120 together with the skin abnormality detecting section 88, the assembly procedure of the beauty apparatus can be simplified and the cost can be reduced accordingly, as compared with the case where the substrate 137 is fixed by a unit different from the fixing unit of the skin abnormality detecting section 88.

In the above-described configuration, the case where "above" and "above" are substituted for each other and the case where "below" and "below" are substituted for each other have substantially the same meaning.

Claims

1. A cosmetic device, characterized in that,

the disclosed device is provided with: a skin stimulator (3) including a stimulation surface (3a) that is in contact with the skin surface and applies stimulation thereto, a skin stimulus source (116) that applies physical cosmetic stimulation to the skin stimulator (3), and a skin abnormality detection unit (88) that optically detects abnormality on the skin surface,

the skin abnormality detection unit (88) includes a light emitting unit (138) for emitting inspection light to a measurement area on the skin surface, and a light receiving unit (139) for receiving the inspection light reflected by the skin surface and outputting an electrical output value corresponding to the amount of received light,

comparing the electrical output value of the light receiving section (139) with a predetermined electrical reference value, and determining that the skin surface is in an abnormal state when the electrical output value is lower than the predetermined electrical reference value,

the beauty instrument has a storage part (177) for storing electric reference values,

when the amount of light received corresponding to the electrical output value of the light receiving unit (139) is greater than the reference light amount indicated by the electrical reference value stored in the storage unit (177), the electrical output value is stored in the storage unit (177) as a new electrical reference value.

2. Cosmetic device according to claim 1,

the state of the skin surface is determined by comparing the electrical output value of the light receiving unit (139) with a predetermined electrical reference value, and when it is determined to be an abnormal state, at least one of control for increasing the output of the skin stimulus source (116) and control for operating a notification body (89) for notifying the abnormal state of the skin surface is performed.