Beauty device and control method therefor
A beauty device applies an alternating current to the skin surface of a user and changes a frequency while keeping a voltage or the like constant in order to adjust the degree of a bodily sensation. A beauty device includes: an electrode portion that includes two or more electrodes and applies the alternating current between the electrodes; a frequency setting portion that sets the frequency of the alternating current either in multiple stages of three or more stages or steplessly; a sensitivity adjusting portion that adjusts the degree of a bodily sensation of the user; and an alternating current generating portion that outputs the set frequency; in which the frequency setting portion sets the frequency based on the adjustment of the sensitivity adjusting portion to adjust the degree of a bodily sensation.
1 . A beauty device for applying an alternating current to a skin surface of a user, comprisin g : an electrode portion, including two or more electrodes and configured for applying alternatin g current between the two or more electrodes; a frequency setting portion for setting a set frequency of the alternating current either in three or more stages or steplessly; a sensitivity adjusting portion to set a desired degree of bodily tingling sensation, the sensitivity adjusting portion is operable by the user to indicate the desired degree of bodily tingling sensation, wherein the degree of bodily tingling sensation is controlled by adjusting the frequency of the alternating current; and an alternating current generating portion for outputting alternating current having the set frequency wherein the alternating current generating portion is configured to produce alternating current having a constant voltage and rectangular wave output, a heater configured for warming the skin of the user, and a resistance value measuring portion for measuring a resistance value of the skin surface of the user, wherein the frequency setting portion sets the set frequency based on the resistance value, and wherein the set frequency is set in a range of 100 kHz to 300 kHz, and further comprising a control substrate including the frequency setting portion and an alternating current generating portion, and the frequency setting portion sets, according to the measured resistance value, a frequency corresponding to characteristics of the skin, and with the sensitivity adjusting portion the resistance value and a setting of the user are combined together, and wherein the frequency includes at least a range of 70 kHz to 300 kHz, the control substrate being configured to command the alternating current generating portion to update the frequency while maintaining the output voltage constant.
2 . A method for controlling a beauty device for applying an alternating current to a skin surface of a user, comprising steps of: contacting the skin surface of the user with an electrode portion and resistance value measuring portion of a beauty device, and wherein during applying alternating current the voltage is kept constant, the alternating current having a rectangular wave output, a set frequency of the alternating current is set either in multiple stages of three or more stages or steplessly, and the alternating current having the set frequency is applied from the electrode portion to the skin surface of the user so as to control a degree of bodily tingling sensation of the user, and wherein the set frequency is set in a range of 100 kHz to 300 kHz, measuring a resistance value of the skin surface of the user; receiving a user input indicating a desired degree of bodily tingling sensation; mapping combinations of measured skin resistance value ranges and user-selected tingling sensation levels to discrete frequency values within 100 kHz to 300 kHz to determine a set frequency; and commanding an alternating current generating portion to output alternating current at the set frequency while keeping the output voltage constant and the alternating current having a rectangular wave output.