CN116943041A - Beauty device - Google Patents

Abstract

The invention provides a cosmetic device capable of improving skin treatment effect according to the condition of skin to be treated. The cosmetic device (10) comprises: an irradiation panel (13) in which a plurality of light emitting diodes for irradiating light to the skin of the body to be treated are arranged in a dispersed manner; distance sensors (31, 32) provided on the irradiation panel (13) for measuring the distance between the skin to be treated and the irradiation panel (13); and a control unit that calculates the distance between the irradiation panel and the skin to be treated based on the level of the reflected light from the skin to be treated detected by the distance sensor, and adjusts the irradiation intensity of the light emitting diode based on the calculation result.

Description

Beauty device

Technical Field

The present invention relates to a cosmetic device for treating skin by applying light to the skin.

Background

It is known that when light of a specific wavelength is irradiated to skin such as face and scalp, that is, skin, the cosmetic effects such as spots and wrinkles are improved. Patent document 1 discloses a hand-held skin care device for use with a user holding a grip, the skin care device including a base frame portion provided with the grip, and a light source setting portion provided at an end portion of the base frame portion. The light source installation unit is provided with a plurality of light source regions for emitting light of different colors, and each light source region is provided with a Light Emitting Diode (LED). Patent document 2 discloses a skin treatment device having a box-shaped body in which a plurality of light emitting diodes are arranged in 4 rows and 7 columns in a dispersed manner.

Patent documents 1 and 2 describe that when red light is irradiated to the skin by a light emitting diode, collagen production of the skin is stimulated, and tissues damaged by collagen are repaired, thereby promoting metabolism. In addition, it is described that when the skin is irradiated with a light beam of infrared rays, the skin can be stimulated to produce elastin, and wrinkles can be improved and collagen can be increased.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2005-125075

Patent document 2: japanese patent application laid-open No. 2012-16438

Disclosure of Invention

Problems to be solved by the invention

In a cosmetic device, which is a skin treatment device including an irradiation section provided with a plurality of light sources including Light Emitting Diodes (LEDs), in order to improve the skin treatment effect, that is, the cosmetic effect, it is necessary to irradiate light at a predetermined irradiation level, that is, an irradiation amount, toward the skin to be treated such as the face. However, in the conventional skin treatment apparatus, since light of a certain irradiation level is irradiated from the light emitting diode, it is necessary to keep the skin to be treated at a predetermined distance from the irradiation unit so as to improve the treatment effect, and further, it is necessary to face the skin to be treated to the irradiation unit so that the whole skin to be treated is not deviated from the irradiation unit.

As described in patent document 2, in the skin treatment device in which a sheet-like member, which is a layered member provided with a plurality of light emitting diodes, is used as an irradiation portion, since the irradiation portion is attached to the body, the distance between the skin to be treated and the irradiation portion can be kept constant, and the irradiation portion can be made to face the skin to be treated.

When a skin treatment device or a cosmetic device that irradiates light at a certain irradiation level from each light emitting diode is used to treat a plurality of skin to be treated, there are problems as follows: depending on the arrangement of the device with respect to the skin to be treated, such as the distance and relative position of the skin to be treated with respect to the irradiation unit, the optimal treatment effect cannot be obtained.

The purpose of the present invention is to provide a cosmetic device that can improve the skin treatment effect according to the condition of the skin to be treated.

Means for solving the problems

The cosmetic device of the present invention comprises: an irradiation panel in which a plurality of light emitting diodes are arranged so as to be dispersed, each of the light emitting diodes being configured to irradiate light to the skin of the body to be treated; a distance sensor provided on the irradiation panel and configured to measure a distance between the skin to be treated and the irradiation panel; and a control unit that calculates a distance between the irradiation panel and the skin to be treated based on a level of the reflected light from the skin to be treated detected by the distance sensor, and adjusts the irradiation intensity of the light emitting diode based on a result of the calculation.

The cosmetic device of the present invention comprises: an irradiation panel in which a plurality of light emitting diodes are arranged so as to be dispersed, each of the light emitting diodes being configured to irradiate light to the skin of the body to be treated; a temperature sensor provided on the irradiation panel and configured to measure a temperature of the skin to be treated; and a control unit that calculates the temperature of the skin to be treated based on a detection signal from the skin to be treated detected by the temperature sensor, and adjusts the irradiation intensity of the light emitting diode based on the calculation result.

Effects of the invention

If the distance sensor is provided on the irradiation panel, the irradiation level of the light emitting diode provided on the irradiation panel can be adjusted according to the distance between the irradiation panel and the skin to be treated, so that even if the distance varies, the skin to be treated can be always irradiated with light at the optimum irradiation level from the start of irradiation to the end of irradiation, thereby improving the skin treatment effect.

If the temperature sensor is provided in the irradiation panel, the irradiation level of the light emitting diode provided in the irradiation panel can be adjusted according to the temperature of the skin to be treated, so that the skin treatment effect can be improved by irradiating the skin to be treated with light at an optimum irradiation level.

Drawings

Fig. 1 is a front view showing a cosmetic device of an embodiment.

Fig. 2 is a perspective view showing a use state of the cosmetic device.

Fig. 3 (a) is an enlarged front view showing the infrared LED unit shown in fig. 1 and 2, and fig. 3 (B) is an enlarged front view showing the blue LED unit.

Fig. 4 is an enlarged cross-sectional view showing an internal structure of the temperature sensor.

Fig. 5 is a block diagram showing a control circuit of the cosmetic device.

Fig. 6 is a control line diagram showing the output signal of the distance sensor and the timing of the light emitting pulse to the light emitting diode.

Fig. 7 (a) to (F) are control lines showing control modes in the case where the timing of detecting the skin temperature of the skin to be treated is set with respect to the output signals of 2 distance sensors.

Fig. 8 is a front view showing a modification of the operation display unit provided at the lower end portion of the irradiation panel, and fig. 8 (a) shows a state in which the power switch is turned on and fig. 8 (B) shows a state in which the power switch is turned off.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The beauty device 10 shown in fig. 1 and 2 includes a substantially rectangular device body 11, and the device body 11 includes a housing member 12 and an irradiation panel 13 provided on a surface side thereof. When the beauty device 10, i.e., the skin treatment device, is used to enhance the beauty effect of the face as shown in fig. 2, the irradiation panel 13 is disposed so as to face the face of the body such that the long side of the irradiation panel 13 faces the longitudinal direction of the face. In order to use the beauty device 10 by disposing the beauty device 10 on a table or the like or on a wall surface, a stand or the like is attached to the apparatus main body 11.

The long side of the irradiation panel 13 in the up-down direction was 295mm, and the short side in the transverse direction was 195mm. The irradiation panel 13 has a plurality of recesses 14, and a total of 56 recesses 14 having 8 rows in the lateral direction and 7 columns in the longitudinal direction are arranged in a checkered matrix. In each recess 14, any one of a first light emitting diode unit (LED unit) 21 and a second light emitting diode unit (LED unit) 22 is arranged. However, the size of the irradiation panel 13 is not limited to the above-described size, and may be a small size to the extent of entering the palm of the user. The number of the LED units 21 and 22 is not limited to the number described above, and any number may be arranged, and the LED units 21 and 22 are not limited to the matrix arrangement as long as they are distributed on the irradiation panel 13. In this specification, a light emitting diode and an LED synonymous with the same are described in a mixed manner.

The first light emitting diode unit 21 is an infrared LED unit, and includes, as shown in fig. 3 (a), 1 infrared light emitting diode 1R that irradiates infrared light, 2 red light emitting diodes R that emit red light, and 2 yellow light emitting diodes Y that emit yellow light. The infrared light emitting diode 1R is disposed in the center of the first LED unit 21, and the red light emitting diode R and the yellow light emitting diode Y are alternately disposed in the circumferential direction at positions at the same radial distance from the infrared light emitting diode 1R.

The second light emitting diode unit 22 is a blue LED unit, and includes 1 blue light emitting diode B emitting blue, 2 red light emitting diodes R emitting red light, and 2 yellow light emitting diodes Y emitting yellow light, as shown in fig. 3 (B). The blue light emitting diode B is disposed in the center of the second LED unit 22, and the red light emitting diode R and the yellow light emitting diode Y are alternately disposed in the circumferential direction at positions at the same radial distance from the blue light emitting diode B.

In this way, the first LED unit 21 has the infrared light emitting diode 1R arranged in the center portion and the red light emitting diode R and the yellow light emitting diode Y arranged around the center portion. On the other hand, the second LED unit 22 has a blue light emitting diode B arranged in the center portion and a red light emitting diode R and a yellow light emitting diode Y arranged around the blue light emitting diode B. As shown in fig. 1 and 2, the first and second LED units 21 and 22 are alternately arranged in the row direction, that is, the lateral direction, and also alternately arranged in the longitudinal direction, that is, the column direction, on the irradiation panel 13, and are arranged in a checkerboard matrix as a whole.

Each of the light emitting diodes in the LED units 21 and 22 includes a semiconductor chip as a diode, a reflecting mirror, and a lens to constitute a lamp, which is also called a light emitting diode lamp.

The skin treatment effect, which is a cosmetic effect given to the skin when light from each light emitting diode, i.e., a light emitting diode lamp, is irradiated to the skin, is as follows.

When red light is irradiated to skin such as human face, the light reaches deep layers of dermis to activate fibroblasts, and the collagen production promoting effect is provided, which is effective for improving dry skin and wrinkles.

When the yellow light is irradiated to the skin, the skin aging phenomenon caused by general ultraviolet light is effectively treated, and the effects of reducing pigmentation, erythema and wrinkles are obtained.

When blue light is irradiated to the skin, the effect of improving/treating inflammatory and non-inflammatory acne is obtained, and the effect of inhibiting the blackening of melanocytes by the combined irradiation with red light is obtained.

When the skin is irradiated with infrared rays, the skin reaches the deep part of the skin and the muscle, and the skin blood vessel is dilated, so that the skin blood vessel has the effects of improving blood flow and muscle relaxation and metabolism, stimulating fibroblasts of dermis layers, generating collagen and improving skin moisture and elasticity.

The red light emitting diode R emits light of a wavelength of 625nm, but is not limited to 625nm as long as it is a wavelength of red light in a range of 625nm to 780 nm. The yellow light emitting diode Y emits light having a wavelength of 590nm, but is not limited to 590nm as long as it is yellow light having a wavelength in the range of 565nm to 590nm. The blue light emitting diode B emits light having a wavelength of 470nm, but is not limited to 470nm as long as it has a wavelength in the range of 450nm to 485 nm. Similarly, the infrared light emitting diode 1R emits near infrared rays having a wavelength of 940nm, but is not limited to 940nm as long as it is infrared rays ranging from 700nm to 1 mm.

The lower end of the irradiation panel 13 serves as an operation display unit 15, and is provided with 5 operation selection switches 23 to 27.

The selection switch 23 is a texture compact switch. The texture (texture) of the skin is irregularities on the skin surface, and the skin with fine texture is a skin-beautifying effect with a transparent feeling, and the main causes of the reduction in the texture and the tightening feeling of the skin are aging and ultraviolet ray stimulation. When the selection switch 23 is operated, yellow light having a wavelength of 590nm, which has an effect suitable for the treatment of aged skin, is irradiated from the yellow light emitting diode Y to the skin at the maximum output. Further, the red light emitting diode R emits red light of 625nm wavelength, which has an effect of increasing collagen production in the dermis layer and reducing MMP-1 (collagen-destroying enzyme), thereby promoting collagen production. Further, near infrared rays having an effect of promoting metabolism are also irradiated from the infrared light emitting diode 1R to the skin.

The selector switch 24 is a pubertal skin switch. Acne which is frequently found in adolescence is mainly a skin problem caused by inflammation of propionibacterium acnes existing on the skin surface due to pores and the like, and propionibacterium acnes cause inflammation while porphyrin is produced. When the selection switch 24 is operated, blue light having a wavelength of 470nm is emitted from the blue light emitting diode B to the skin. Thus, active oxygen is generated by reaction with porphyrin, and propionibacterium acnes are sterilized, so that redness of the face associated with acne skin and comedo can be improved. In addition, by simultaneously irradiating red light with a wavelength of 625nm, which has a high permeability, the generation of collagen can be promoted, and a rapid skin repair effect can be obtained.

The selection switch 25 is a rough/dry skin switch. The rough skin is closely related to the dryness of the skin, and when the selection switch 25 is operated, near infrared rays are irradiated from the infrared light emitting diode 1R at maximum output. Thus, metabolism of the skin can be promoted. When red light of 625nm having high permeability is irradiated to the skin together with near infrared rays, collagen production can be promoted, and a rapid repairing effect of rough skin can be obtained.

The selection switch 26 is a skin-lightening switch. The reason for the darkness and the speckles of the skin is that the irregularities of the skin surface due to the aging are seen as light and shade (fine shadow), or the portion with poor blood circulation is seen as blackening, or the blackening of melanocytes due to ultraviolet rays. Therefore, when the selector switch 26 is operated, the blue light of 470nm and the red light of 625nm are further emitted at a medium level, that is, at a medium intensity, by emitting yellow light of 590nm to the skin, which is effective for the treatment of the skin due to the aging phenomenon caused by ultraviolet rays, at the maximum output, whereby blackening of the melanocytes can be suppressed.

The selection switch 27 is a scalp care switch. Hair loss and white hair are one of the main causes of decrease in blood circulation of capillaries and decrease in metabolism due to pressure and aging. Therefore, when the selection switch 27 is operated, the near infrared light of 940nm is irradiated at the maximum output, and the red light of 625nm is further irradiated at the maximum output, so that hair mother cells are stimulated, hair papilla cells are activated, and hair growth is promoted, for the purpose of improving the scalp environment. In addition, the scalp is irradiated with weak blue light for the purpose of sterilizing the scalp.

Thus, when any one of the operation selection switches 23 to 27 is operated, any one of the light emitting diodes is irradiated according to the selected operation mode, and the irradiation intensity is set.

A timer operation switch 28 and a timer display unit 29 are provided below the operation selection switch, and a time set by an operation of the timer operation switch 28 is displayed on the timer display unit 29 by lighting. For example, the minimum time may be set to 5 minutes, the maximum time may be set to 30 minutes, and the operation time may be set in units of 5 minutes each time the timer operation switch 28 is operated 1 time. Reference numeral 30 denotes a start/stop switch for the action, which is operated when the action program selected by the action selection switches 23 to 27 is executed, and if the operation is performed during the execution, the action is stopped.

As shown in fig. 1, the timer operation switch 28 and the start/stop switch 30 show patterns indicating the respective switch functions in the frame line. The operation selection switches 23 to 27 are shown only by frame lines, and although the patterns are omitted, the patterns showing the switching functions are marked.

As shown in fig. 1, first and second 2 distance sensors 31, 32 are provided at the center of the irradiation panel 13 in the up-down direction so as to be spaced apart from each other in the left-right direction. Each of the distance sensors 31 and 32 is a photodiode functioning as a photodetector, and includes a window for receiving reflected light of light irradiated to skin to be treated such as a face, and the distance between the skin to be treated and the distance sensors 31 and 32 can be measured based on the level of the reflected light. The distance between the skin to be treated and the distance sensor 31 is substantially equal to the distance between the skin to be treated and the irradiation panel 13. As the respective distance sensors 31, 32, phototransistors may be used. As the phototransistor, for example, a bipolar transistor can be used, which is a type in which light reaches a pn junction of the base/collector.

By detecting the distance between the irradiation panel 13 and the skin to be treated by the distance sensors 31 and 32, the irradiation intensity, that is, the irradiation level of the infrared rays and the red rays can be automatically adjusted. That is, by increasing the irradiation intensity when the distance is longer than the set distance and decreasing the irradiation intensity when the distance is shorter than the set distance, the skin to be treated can be irradiated with an optimal irradiation amount. However, the irradiation levels of all the light emitting diodes may be adjusted according to the distance.

In order to measure the distance between the irradiation panel 13 and the skin to be treated, 1 distance sensor may be provided. As shown in fig. 1 and 2, when the 2 distance sensors 31 and 32 are provided separately from each other in the left-right direction, for example, when the face is the skin to be treated, the left-right balance is detected from the reflected light levels received by the 2 distance sensors 31 and 32, and thereby it is possible to determine whether the face is opposed to the center portion of the irradiation panel 13 as will be described later. When the face is detected to be opposed to the central portion of the irradiation panel 13, the temperature of the face, which is the skin to be treated, can be detected.

A temperature sensor 33 for measuring the temperature of the skin to be treated is disposed between the 2 distance sensors 31, 32. The temperature sensor 33 uses a thermopile type infrared sensor. The higher the temperature of the skin of the person is, the stronger the infrared ray is emitted, and the infrared ray sensor can measure the skin temperature by detecting the infrared ray from the skin. The temperature sensor 33 is not limited to the radiation temperature sensor, which is an infrared sensor, and other types of sensors can be used as long as they are non-contact temperature sensors. As will be described later, the timing of temperature detection can be determined by the reflection levels and balancing of the 2 distance sensors 31, 32.

Fig. 4 is an enlarged cross-sectional view showing the internal structure of the temperature sensor 33, in which the temperature sensor 33 composed of an infrared sensor is mounted on the printed board 34 assembled in the case member 12 through the spacer 35, and the high-density polyethylene lens 36 having a fresnel lens structure is mounted on the irradiation panel 13. In fig. 1 and 2, a portion of the lens 36 is represented as a temperature sensor 33.

The display unit provided at the lower end of the irradiation panel 13 is provided with 3 irradiation mode switches, i.e., a temperature measurement mode switch 41, a distance measurement mode switch 42, and a goggle mode switch 43. The temperature measurement mode switch 41 is a switch for setting whether or not to operate the temperature sensor 33, and detects the skin temperature and adjusts the light emission output of the light emitting diode when the temperature measurement mode switch 41 is turned on. When the temperature measurement mode switch 41 is turned on, the irradiation amount is automatically adjusted by comparing the skin temperature measured by the temperature sensor 33 at the time of skin treatment with the history of the detection values obtained by the temperature sensor 33 for a predetermined number of times, for example, with the average skin temperature of temperatures of detection values of about 10 to 100 times in the past, or with the skin temperature transition. The detection value of the skin temperature is stored in the memory a prescribed number of times. For example, when it is detected that the skin temperature exceeds the average skin temperature by a predetermined threshold value, the irradiation amount is decreased, and when the irradiation amount is lower than the threshold value, the irradiation amount is increased.

The distance measurement mode switch 42 is a switch for detecting the distance between the skin to be treated and the irradiation panel 13, and automatically adjusting the irradiation amount according to the distance, or setting whether to irradiate the skin to be treated with a certain amount of irradiation amount without measuring the distance, and the user can select whether to adjust the irradiation amount according to the distance or to irradiate the skin with a certain amount of irradiation amount. When both the temperature measurement mode switch 41 and the distance measurement mode switch 42 are turned on, the irradiation level, that is, the irradiation intensity is adjusted according to both the skin temperature and the distance.

The goggle mode switch 43 is a switch for selecting whether to apply or not apply goggles to the face, and when the goggle mode switch 43 is operated to apply light to the face without applying goggles, the irradiation amount is automatically adjusted so that the irradiation level is lower than when applying goggles.

A power switch 44 is provided at the lower side of the 3 mode switches, and when the power switch 44 is turned on, all other switches can be operated. When the power is turned off, the display is turned off, and when the off operation is performed during the operation, the irradiation is forcibly stopped. As the power switch, a logo and a label may be displayed in the range shown in the frame, and the logo and the label may also be used as the power switch.

Fig. 5 is a block diagram showing a control circuit of the cosmetic device 10. The detection signals of the distance sensors 31 and 32 and the temperature sensor 33 are sent to the control unit 45. Further, operation signals of the action selection switches 23 to 27 and the timer operation switch 28, operation signals of the temperature measurement mode switch 41, the distance measurement mode switch 42, and operation signals of the goggle mode switch 43 are transmitted to the control unit 45. The control unit 45 includes a memory storing a control program, data, and the like, a Microprocessor (MPU) that calculates a control signal, and the like. The light emission level, that is, the light emission output of the light emitting diodes constituting the respective LED units 21, 22 is controlled in accordance with a control signal from the control unit 45, and the operation display unit 15 and the timer display unit 29 are controlled to be turned on. As shown in fig. 2, a DC outlet 46 is provided at a side of the apparatus body 11, and drives and controls the cosmetic device 10 by power supplied to a control circuit from the outside. The detection history of the skin temperature for a predetermined number of times is stored in the memory of the control unit 45.

Fig. 6 is a control line diagram showing the output signals of the distance sensors and the timings of the light emitting pulses to the light emitting diodes in the respective LED units. When the user operates the distance measurement mode switch 42 and selects a mode in which the irradiation amounts of the light emitting diodes are automatically adjusted according to the distance between the skin to be treated and the irradiation panel 13, the control unit 45 reads the detection signals of the distance sensors 31 and 32. When the detection signal is read by the control unit 45, the light emitting diode is turned on in synchronization with the read timing P. The light emitting diodes to be turned on and the irradiation intensity are set according to the operation program set by the operation selection switches 23 to 27.

When the mode for automatically adjusting the irradiation amount is selected, the control unit 45 calculates the distance between the irradiation panel 13 and the skin to be treated based on the reflection level of the reflected light from the skin to be treated received by the distance sensor, and adjusts the light emission output of the light emitting diode based on the calculation result. For example, when the distance L between the irradiation panel 13 and the skin to be treated is used in the range of 100 to 250mm as a standard, the distance obtained by adding a certain allowable value to the intermediate value of the range is used as an appropriate distance, and the irradiation amount of the light emitting diode at this time is set as a reference value. When the distance L is smaller than the appropriate distance, the level of the detection signal of the distance sensor becomes higher, and accordingly the irradiation amount of the light emitting diode is set lower. On the other hand, when the distance L is longer than the appropriate distance, the level of the detection signal of the distance sensor becomes lower, and therefore the irradiation amount of the light emitting diode is set to be high accordingly. This can keep the irradiation intensity of the light emitting diode which irradiates the skin such as the face during the operation within a certain range. When the irradiation time set by the user operating the timer operation switch 28 passes, the light emitting diode is turned off.

Since 2 distance sensors 31 and 32 are provided, the distance L may be detected by the intermediate value between the 2 distance sensors 31 and 32 or by either one of them. In addition, the beauty device 10 may be in the form of including only 1 distance sensor.

The light emission output of each light emitting diode is pulse light emission, and the light emission output intensity is adjusted by PWM (pulse width modulation) control or PFM (pulse frequency modulation) control. PFM control is a method of controlling the output voltage value to the light emitting diode by changing the switching frequency and the duty ratio in a state where the on-time or the off-time is fixed. In contrast, PWM control is controlled as follows: the on-time is fixed in advance, increasing the frequency when the duty ratio is increased, and decreasing the frequency when the duty ratio is decreased.

Fig. 7 (a) to 7 (F) are control charts showing control modes in the case where the timing of detecting the skin temperature of the skin to be treated is set with respect to the face based on the output signals of the 2 distance sensors 31 and 32. The left and right sides of the 2 distance sensors 31 and 32 are based on the position of the irradiation panel 13 shown in fig. 1, the first distance sensor 31 is disposed on the left side in fig. 1, and the second distance sensor 32 is disposed on the right side.

Fig. 7 (a) shows a case where the irradiation panel 13 is too close to the face, and in this case, the reflection level signals received by the 2 distance sensors 31, 32 exceed the temperature reading threshold S. Fig. 7 (B) shows a case where the surface is too close to the right side of the irradiation panel 13, and in this case, the reflection level signal of the distance sensor 31 on the left side falls within the range of the temperature reading threshold S, whereas the distance sensor 32 on the right side exceeds the threshold S. In contrast, fig. 7 (C) shows a case where the surface is too close to the left side of the irradiation panel 13, and in this case, the reflection level signal of the distance sensor 32 on the right side falls within the range of the temperature reading threshold S, whereas the distance sensor 31 on the left side exceeds the threshold S.

On the other hand, fig. 7 (D) shows a case where the surface is slightly far and right from the irradiation panel 13, and in this case, the reflection level signal of the distance sensor 32 on the right side falls within the range of the temperature reading threshold S, whereas the distance sensor 31 on the left side is lower than the threshold S. In contrast, fig. 7 (E) shows a case where the surface is slightly far and left from the irradiation panel 13, and in this case, the reflection level signal of the left-side distance sensor 31 falls within the range of the temperature reading threshold S, whereas the right-side distance sensor 32 falls below the threshold S.

Fig. 7 (F) shows that the position and distance of the face with respect to the irradiation panel are appropriate, and the reflected signal level of both are within the range of the threshold S, and the skin temperature of the face is measured. When the irradiation panel 13 is applied to the skin to be treated, it is not easy to always keep the skin to be treated at a constant distance in the left-right direction and a constant position in the direction of the irradiation panel 13, but by providing a plurality of distance sensors, the skin to be treated such as the face can always be irradiated under a constant condition.

Fig. 8 is a front view showing a modification of the operation display unit 15 provided at the lower end portion of the irradiation panel 13, in which fig. 8 (a) shows a state in which the power switch 44 is turned on and fig. 8 (B) shows a state in which the power switch 44 is turned off. When the power switch 44 is turned on, the action selection switches 23 to 27, the temperature measurement mode switch 41, the distance measurement mode switch 42, the goggle mode switch 43, and the like shown in fig. 1 are turned on. On the other hand, when the power switch 44 is turned off to operate without using the cosmetic device 10, as shown in fig. 8 (B), extinction is displayed except for a portion of the power switch 44.

The operation display unit 15 shown in fig. 8 is provided at the lower end portion of the irradiation panel 13 as in the operation display unit shown in fig. 1, but the operation display unit 15 may be provided on the irradiation panel 13 by providing an operation panel separately from the irradiation panel 13 and only the LED units 21 and 22.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope thereof.

Description of the reference numerals:

10: a cosmetic device; 11: an apparatus main body; 12: a housing member; 13: illuminating the panel; 14: a concave portion;

15: an operation display unit; 21. 22: a light emitting diode unit (LED unit); 23 to 27: a selection switch is acted; 28: a timer operation switch; 29: a timer display unit; 30: a start/stop switch; 31. 32: a distance sensor; 33: a temperature sensor; 34: a printed substrate; 35: a spacer; 36: a lens; 41: a temperature measurement mode switch; 42: a distance measurement mode switch; 43: a goggle mode switch; 44: a power switch; 45: a control unit; 46: a DC outlet.

Claims (8)

1. A cosmetic device comprising:

an irradiation panel in which a plurality of light emitting diodes are arranged so as to be dispersed, each of the light emitting diodes being configured to irradiate light to the skin of the body to be treated;

a distance sensor provided on the irradiation panel and configured to measure a distance between the skin to be treated and the irradiation panel; and

and a control unit that calculates a distance between the irradiation panel and the skin to be treated based on a level of the reflected light from the skin to be treated detected by the distance sensor, and adjusts an irradiation intensity of the light emitting diode based on a result of the calculation.

2. A cosmetic device comprising:

an irradiation panel in which a plurality of light emitting diodes are arranged so as to be dispersed, each of the light emitting diodes being configured to irradiate light to the skin of the body to be treated;

a temperature sensor provided on the irradiation panel and configured to measure a temperature of the skin to be treated; and

and a control unit that calculates the temperature of the skin to be treated based on a detection signal from the skin to be treated detected by the temperature sensor, and adjusts the irradiation intensity of the light emitting diode based on the calculation result.

3. The cosmetic device of claim 1, wherein the cosmetic device comprises:

a temperature sensor provided on the irradiation panel and configured to measure a temperature of the skin to be treated;

a distance measurement mode switch provided on the operation display unit and configured to operate the distance sensor; and

a temperature measurement mode switch provided in the operation display unit and operating the temperature sensor,

the control unit calculates a distance between the irradiation panel and the skin to be treated based on a level of the reflected light detected by the distance sensor when the distance measurement mode switch is on, and adjusts an irradiation intensity of the light emitting diode based on a result of the calculation, and calculates a temperature of the skin to be treated based on a reflected signal from the skin to be treated detected by the temperature sensor when the temperature measurement mode switch is on, and adjusts the irradiation intensity of the light emitting diode based on a result of the calculation.

4. The cosmetic device according to claim 3, wherein,

a plurality of the distance sensors are disposed on the irradiation panel at a distance from each other,

the control unit calculates the temperature of the skin to be treated when the level of the reflected light measured by each of the distance sensors falls within a range of a read threshold.

5. The cosmetic device according to claim 3, wherein,

the cosmetic device includes a memory storing a plurality of detection values for the skin to be treated obtained by the temperature sensor,

the control unit compares the skin temperature transition or average skin temperature calculated from the plurality of detection values stored in the memory with the skin temperature of the skin to be treated measured when the temperature sensor is turned on, and adjusts the light emitting diode irradiation amount.

6. Cosmetic device according to claim 1 or 2, wherein,

the plurality of light emitting diodes include at least an infrared light emitting diode that irradiates infrared rays.

7. The cosmetic device of claim 6, wherein,

the cosmetic device comprises:

a first light emitting diode unit including the infrared light emitting diode disposed in a central portion, 2 red light emitting diodes and 2 yellow light emitting diodes disposed around the infrared light emitting diode, respectively; and

the second light-emitting diode unit is composed of a blue light-emitting diode arranged at the central part, 2 red light-emitting diodes respectively arranged around the blue light-emitting diodes, and 2 yellow light-emitting diodes.

8. The cosmetic device of claim 7, wherein,

the first light emitting diode units and the second light emitting diode units are alternately arranged in a transverse direction, the first light emitting diode units and the second light emitting diode units are alternately arranged in a longitudinal direction, and the light emitting diode units are distributed and arranged in a checkerboard shape.