CN-116829227-B - Light irradiation type dehairing device

Abstract

A light-irradiated hair removal device (1) is provided with a first light source (10), a second light source (12), a skin cooling unit (20), a push button switch (30), a first cooling unit (40), and a second cooling unit (41). The first cooling unit (40) cools the first light source (10). The second cooling unit (41) cools the second light source (12). The first cooling unit (40) cools the first light source (10) so as to shift the wavelength of light emitted from the first light source (10) to a wavelength different from the wavelength of light emitted from the second light source (12).

Inventors

• Ryohiro Sakamoto
• KASUGAI HIDEKI

Assignees

• 松下知识产权经营株式会社

Dates

Publication Date

20260508

Application Date

20211224

Priority Date

20210205

Claims (5)

1. 1. A light-irradiation type dehairing device is provided with: A first light source that irradiates light having a wavelength of 400nm or more and 1200nm or less; a second light source that irradiates light having a wavelength of 400nm or more and 1200nm or less; A skin cooling unit that faces the first light source and the second light source, transmits light irradiated from the first light source and the second light source, and cools the skin when the skin is in contact with the skin; a push button switch including a pressing portion that performs switching between light irradiation by the first light source and the second light source and light non-irradiation by the first light source and the second light source so as to irradiate light from the first light source and the second light source during at least a part of a period in which the pressing portion is pressed and not irradiate light from the first light source and the second light source during a period in which the pressing portion is not pressed, the pressing portion surrounding the first light source, the second light source, and the periphery of the skin cooling portion, the pressing portion protruding in a direction opposite to a side of the skin cooling portion with respect to a surface of the skin cooling portion that is in contact with the skin, the pressing portion moving in a direction of the first light source and the second light source with respect to the skin cooling portion when pressed; a first cooling part for cooling the first light source, and A second cooling unit that cools the second light source, The first cooling unit cools the first light source to shift the wavelength of light emitted from the first light source to a wavelength different from the wavelength of light emitted from the second light source.
2. 2. The light-irradiated hair removal device according to claim 1, further comprising: a temperature sensor for detecting the temperature of the first light source and the temperature of the second light source, and And a control unit that controls cooling of the first cooling unit so as to cool the first light source to a temperature different from that of the second light source, based on the temperatures of the first light source and the second light source detected by the temperature sensor.
3. 3. The light-irradiated epilation device of claim 2, wherein, The first cooling portion comprises a peltier element, The temperature sensor includes a thermistor.
4. 4. The light-irradiated epilation device according to any one of claims 1-3, wherein, The first cooling unit cools the first light source so that the temperature of the first light source is lower than the temperature of the second light source.
5. 5. The light-irradiated epilation device according to any one of claims 1-3, wherein, The first cooling unit cools the first light source so that the first light source is within a temperature range predetermined according to a portion of the skin to which light from the first light source and the second light source is irradiated.

Description

Light irradiation type dehairing device Technical Field The present disclosure relates to a light-illuminated epilation device. Background Conventionally, a light-irradiated hair removal device that irradiates light to remove hair is known. The light-irradiated hair removal device irradiates light having a specific wavelength to the skin surface of the user to cause the light to act on melanin of hair follicles, thereby promoting hair discharge. As a light irradiation type hair removal device, for example, a device as disclosed in patent document 1 is known. Patent document 1 discloses a light-irradiated hair removal device provided with a light source that irradiates treatment light and detection light to an object, a photodetector that detects detection light for detecting the object, and a control unit that controls the light source. The control unit controls the light source in such a way that the absorption of the detection light is determined from the detected detection light, and the treatment light is generated in dependence of the determined absorption. Prior art literature Patent literature Patent document 1 Japanese patent No. 5715128 Disclosure of Invention The conventional light-irradiated hair removal device includes VCSELs (VERTICAL CAVITY Surface EMITTING LASER: vertical cavity Surface emitting lasers) that irradiate light of different wavelengths as mutually independent subgroups. Further, in the conventional light irradiation type hair removal device, when processing light is generated depending on absorption of probe light, turning on and off of these VCSELs is controlled. In the conventional light-irradiated depilation device, since a part of the mounted VCSEL is turned off to generate the processing light, irradiance may be reduced to reduce the depilation effect. In addition, in the conventional light-irradiated hair removal device, when light having a single wavelength is irradiated, the depth of light entering the skin is fixed, and melanocytes containing melanin existing in hair follicles having a specific depth may be intensively heated. In this case, there is a possibility that uneven heating occurs in the depth direction of the skin, and a sufficient depilating effect cannot be obtained. The present disclosure provides a light-irradiated hair removal device capable of uniformly irradiating light to the entire area of melanocytes distributed in hair follicles. The light-irradiated hair removal device according to the aspect of the present disclosure includes a first light source, a second light source, a skin cooling portion, a push button switch, a first cooling portion, and a second cooling portion. The first light source irradiates light having a wavelength of 400nm or more and 1200nm or less. The second light source irradiates light having a wavelength of 400nm or more and 1200nm or less. The skin cooling unit faces the first light source and the second light source, transmits light irradiated from the first light source and the second light source, and cools the skin when the skin is in contact with the skin. The push button switch includes a pressing portion surrounding the first light source, the second light source, and the periphery of the skin cooling portion. When not pressed, the pressing portion protrudes in a direction opposite to the first light source and the second light source with respect to the skin cooling portion, compared to a surface of the skin cooling portion that contacts the skin. When the pressing portion is pressed, the surface pressed by the skin moves toward the first light source and the second light source with respect to the skin cooling portion. The push button switch is used for switching between the first light source and the second light source. Light is irradiated from the first light source and the second light source during at least a part of the period in which the pressing portion is pressed, and light is not irradiated from the first light source and the second light source during the period in which the pressing portion is not pressed. The first cooling unit cools the first light source. The second cooling unit cools the second light source. The first cooling unit cools the first light source to shift the wavelength of the light irradiated from the first light source to a wavelength different from the wavelength of the light irradiated from the second light source. According to the present disclosure, a light-irradiated hair removal device capable of uniformly irradiating light to the entire area of melanocytes distributed in hair follicles can be obtained. Drawings Fig. 1 is a cross-sectional view showing a structure of a light-irradiated hair removal device according to the present embodiment. Fig. 2 is a cross-sectional view of line II-II of fig. 1. Fig. 3 is a perspective view showing an example of the arrangement state of the first light source and the second light source according to the present embodiment. Fig. 4 is a control bl