KR20170123414A - An apparatus for treatment for scalp or skin - Google Patents

Abstract

The present invention relates to an apparatus for scalp or skin care. Through a simple configuration including a light guide plate and an optical module, surface light sources with respect to emitted light can be realized. The apparatus has a plurality of light irradiation modules and applies light sources at different wavelengths to each light irradiation module, thereby securing proper treatment effects by each section of scalp or skin. Moreover, since the intensity of the light sources can be determined, the light sources can be replaced at the right time, so treatment effects can be maximized.

Description

≪ Desc / Clms Page number 2 > An apparatus for treatment for scalp or skin,

The present invention relates to a scalp or skin care device, and more particularly, to a scalp or skin care device capable of realizing a surface light source for irradiated light through a simple structure including a light guide plate and a predetermined optical module, and having a plurality of light irradiation modules, It is possible to secure a proper therapeutic effect for each region of the scalp or skin by applying a light source of a wavelength, and it is possible to timely replace the light source through a structure capable of judging the intensity of the light source, thereby maximizing the therapeutic effect .

Recently, a low power laser method using a phenomenon that the metabolism is promoted and the function of the tissue is activated by irradiating a light beam of a specific wavelength onto a living tissue is being developed. It is known that such low-power laser therapy uses laser light having a predetermined wavelength, and the light irradiated to the living body and penetrated into the living tissue exhibits an effect such as an increase in the production of capillary blood vessels and an increase in the amount of oxygen in the blood.

Various types of hair laser devices utilizing such a phenomenon are known, and specifically, a comb type, helmet type hair laser device is being developed.

Korean Patent Laid-Open Publication No. 2012-0068926 (titled as a phototherapy apparatus for treating hair, scalp and skin, hereinafter referred to as prior art 1) includes a pair of audio Wherein the at least one canopy band comprises an inner surface that can be placed face-to-face against the scalp of the user's head when the head unit is worn on the user's head Wherein the inner surface is structured and configured to follow the curvature of the scalp including the frontal, temporal, and crown regions of the scalp, and an array of emissive sources on the inner surface of the at least one canopy band, The array can be used to create a light pattern that can be simultaneously induced into the frontal, temporal, and crown areas of the user's scalp Wherein each of the light emitting sources is further structured and arranged to emit light within a wavelength range according to the specific disease treated by the phototherapy using the apparatus and configured to extend downward from the inner surface of the canopy band Wherein each of the plurality of spatial columns includes a fabric for fixing to the head of a user and a rubber tip rotatably mounted on the fabric, the plurality of spatial columns being arranged in the interior of the canopy band Wherein the rubber tip on the fabric of each of the plurality of spatial columns is adjustably positioned relative to the spatial column to conform to a shape of the user's head and to be comfortably secured to the user's head For controlling the operation of each of the light emitting sources in the array of light emitting sources A wearable hands-free device for providing phototherapy treatment to a user, comprising at least one control portion, is disclosed.

KR 2012-0068926 A

The prior art 1 has a configuration in which a plurality of light sources are included over the entire region of the scalp or the skin. Therefore, the first problem that the wiring structure is complicated, the maintenance is difficult, the output reduction of the light source is hardly known, It is difficult to find the falling edge.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided a light irradiation module including a light source for generating an irradiation light, and a light guide unit for receiving an irradiation light from the light source and outputting the light to the scalp or skin side, Provided is a scalp or skin care device including a frame having a light irradiation module and being mounted on a user's head.

According to an embodiment of the present invention, the light guide unit may include a light guide plate having a light incidence surface to receive the irradiation light from the light source at the side portion and having a light exit surface that emits light to the scalp or skin side.

Further, in an embodiment of the present invention, the light guide section may further include a reflection sheet having a function of reflecting the input irradiation light toward the light output surface side.

Further, in one embodiment of the present invention, the light irradiation module may further include an incident optical module for guiding the irradiation light from the light source to the light incoming surface.

Further, in an embodiment of the present invention, the incident optical module may be optical path changing means, optical shape changing means or a combination thereof.

Further, in an embodiment of the present invention, The incident optical module may be a reflector having a reflecting surface.

According to an embodiment of the present invention, there is provided a light guide plate, which is provided on the opposite side of the light source with respect to the light guide plate, and which is not emitted through the light exit surface of the light source but emitted through the other side surface with respect to the light entrance surface And an emission light measuring unit having a function of measuring the intensity of the emitted light.

In one embodiment of the present invention, the light guide portion further includes a diffusing sheet positioned on the upper surface of the light exiting surface of the light guide plate and having a function of scattering the irradiated light beam through the light exiting surface to uniformize brightness can do.

Further, in an embodiment of the present invention, the light guide portion may include a prism sheet having a function of being located on the upper surface of the light output surface of the light guide plate and refracting and condensing the irradiation light emitted through the light output surface to improve the brightness .

Further, in an embodiment of the present invention, each of the opposite side portions of the light guide plate has a first light incidence surface and a second light incidence surface, the light source includes a first light source for inputting the irradiation light to the first light incidence surface, And a second light source for inputting the irradiation light to the light incidence surface.

According to an embodiment of the present invention, there is provided a light guide plate, which is provided on the side opposite to the first light source with respect to the light guide plate and which is not outgoing through the light exit surface of the irradiation light from the first light source, And a second light source that is provided on a side opposite to the second light source with respect to the light guide plate and which is outgoing through the light outgoing surface of the light emitted from the second light source And a second emission light measuring unit having a function of measuring the intensity of light emitted through the other side surface with respect to the second light incidence surface.

Further, in one embodiment of the present invention, the light source may be a light emitting element, a laser diode, a light emitting diode (LED), an infrared diode or a lamp.

Further, in an embodiment of the present invention, the emitted light measuring unit may be an optical sensor.

Further, in an embodiment of the present invention, a plurality of light irradiation modules may be provided.

Further, in an embodiment of the present invention, the light source of each of the plurality of light irradiation modules may generate an irradiation light of a predetermined wavelength corresponding to the scalp or skin area, which is an object of light irradiation.

Further, in one embodiment of the present invention, the frame may be a helmet type, a headset type, a hair band type, or a bar type.

Further, in an embodiment of the present invention, the control unit may further include a control unit capable of adjusting the output of the light source.

Further, in an embodiment in which a plurality of light irradiation modules are included, the control unit may further include a control unit that can adjust the output of each light source of each of the plurality of light irradiation modules.

The scalp or skin care device of the present invention may further include a user interface for providing the user with the device information including the status information of the light source and receiving the device operating condition including the output or wavelength of the light source from the user .

Also, in an embodiment of the present invention, the emission light measuring unit may include an alarm module having a function of providing a light source replacement alarm in comparison with a predetermined reference value.

The present invention has a first effect that a planar light source can be efficiently implemented with a simpler structure by using a configuration of a light guide plate or the like without providing a plurality of light sources, the number of light sources used can be minimized, A third effect that a complicated wiring to a light source can be omitted, a third effect that a plurality of light irradiation modules can be provided, and an irradiation light having an optimal wavelength band can be generated according to a part of the scalp The fourth effect and the configuration of the emission light measuring unit can easily determine the replacement timing of the light source.

1 is a schematic diagram showing an embodiment of a light irradiation module of the scalp or skin care device of the present invention.
2 is a schematic view showing an embodiment of a light irradiation module of the scalp or skin care device of the present invention.
3 is a schematic diagram showing an embodiment of the light irradiation module of the scalp or skin care device of the present invention.
4 is a schematic diagram showing an embodiment of the light irradiation module of the scalp or skin care device of the present invention.
5 is a schematic diagram showing an embodiment of a light irradiation module of the scalp or skin care device of the present invention.
6 is a schematic view showing an embodiment of a coupling structure between a light irradiation module and a frame of the present invention.
7 is a schematic view showing an embodiment in which a plurality of light irradiation modules are provided in the scalp or skin care device of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The scalp or skin care device of the present invention has as main components a light irradiation module 10 including a light source and a light guide portion and a frame 20 on which a light irradiation module 10 is mounted and which is mounted on a user's head.

The light irradiation module 10 functions to irradiate an irradiation light having a predetermined wavelength band to a region to be treated such as a scalp or a face having a predetermined area. The predetermined wavelength band may be a single wavelength or a plurality of wavelengths, which will be described later.

Referring to FIG. 1, a plurality of light irradiation modules 10 may be provided, and each of the light irradiation modules 10 may generate irradiation light beams of the same wavelength band, Of course. In this case, it is preferable that each of the light sources provided in the plurality of light irradiation modules 10 is set to have a wavelength band suitable for the scalp or skin region to be irradiated. The term " conformance " as used herein is intended to meet one or more of the following specific goals, such as stimulating cells, promoting hair growth, treating wounds, and improving cosmetics, when acting on the skin or scalp it means.

For example, the wavelength of the irradiation light suitable for the bangs, the crown, and the back of the scalp may be different from each other. It is preferable that a plurality of the light irradiation modules 10 are provided, It can be arranged to take charge of each part.

The light source has a function of generating irradiation light, and it is sufficient that any light emitting device capable of generating irradiation light having a wavelength and intensity suitable for management and treatment of the skin, the scalp region, and the like is sufficient. Examples of the light source include, but are not limited to, a laser, a laser diode (LD), a VCSEL, a light emitting diode (LED), an infrared diode or a lamp

In the case of a laser or a laser diode, specifically, as a low power laser, the wavelength may be 400 nm to 1700 nm, and the size of the output may be 1 mW to 500 mW, but is not limited thereto.

In the case of a lamp, the wavelength may be 400 nm to 1700 nm, and the size of the output may be 1 mW to 500 mW, but is not limited thereto.

In the case of a light emitting diode, it is possible to select to generate light in a wavelength band of blue, red, and the like. Wave length is selected from the group consisting of a blue diode (blue light emitting diode): 400-470 nm, a green diode (green light emitting diode) - 572 nm, the yellow diode (red light emitting diode): 572 - 630 nm, and the red diode (red light emitting diode): 630 - 700 nm.

In the case of an infrared diode, it is of course possible to select a suitable one among the near-infrared ray, the far-infrared ray and the infrared ray in the middle infrared ray region, or a combination thereof can be applied. In particular, the treatment method using infrared rays is simple and there is no concern about side effects, and the scope of treatment is gradually increasing.

In addition, the light source may be one capable of variably controlling the wavelength of the generated light. With this configuration, it is possible to select and set a combination of the most suitable wavelength for the skin and the scalp region. In order to vary the wavelength of the light source, a known configuration such as a switch, a dial, and an input pad can be applied, and such functions can be performed in a user interface described later.

The light source may be a point light source or a linear light source, and a laser light source may be used. The point light source is a light source of a type in which an irradiation light diverges from the center of the light source to all directions, and the light source is a light source having a long shape in one axial direction. As a source of light, cold cathode fluorescent lamp (CCFL) and external electrode fluorescent lamp (EEFL) may be used, but the present invention is not limited thereto. Examples of point light sources include light emitting diodes, infrared diodes, and the like. Since the laser light source uses light emitted from the light emitting surface of the laser generating element, light is not emitted from the light source to all directions, and light can be focused in one direction, which is advantageous in that irradiation to the light incident surface 13a is efficient.

A single light source can be applied to a light source, but a light source array composed of several light sources can be applied. In an embodiment of the light source array, when the light guide portion includes the light guide plate 13, the light incidence surface 13a may have a rectangular shape. In the longitudinal direction of the rectangle, several light sources may be provided as a light source array will be. The light source array can be configured by mounting a plurality of light sources on a substrate.

5, a first light incidence surface 13a1 and a second light incidence surface 13a2 are assumed on both sides of the light guide plate 13, and the light source inputs an irradiation light to the first light incidence surface 13a1 And a second light source for inputting an irradiation light to the second light incidence surface 13a2. In this case, the amount of the irradiation light traveling through the light-emitting surface 13b of the light guide plate 13 can be increased.

The light guide section receives the irradiation light from the light source 11 and has a function of outputting the light to the scalp or skin side. The light guide portion is configured to include a light guide plate 13 having a light incidence surface 13a to which an irradiation light from the light source 11 is input and which has a light incidence surface 13b for output to the scalp or skin side And a known one can be applied. It is appropriate that the light-emitting surface 13b is positioned so as to be parallel to the skin or scalp surface immediately below.

The light guide plate 13 functions to change the irradiation light input from the one-dimensional light source or the point light source into the surface light source. As the material, PMMA can be applied, but it is not limited thereto. PMMA has advantages of high mechanical strength, light weight, strong chemical resistance, and high transparency and high visible light transmittance. However, it is needless to say that PS (Poly styrene), MS (Meta styrene), PC (Polycarbonate) and the like can be applied.

Referring to FIG. 3, it can be realized by various structures that the irradiation light incident on the light incidence surface 13a of the light guide plate 13 changes into a surface light source. For example, a light scattering pattern 13c, which is a light scattering plate or the like, is formed on the lower surface of the light guide plate 13, and the scattered light hits the light scattering pattern 13c while the irradiation light advances through the light guide plate 13 through total internal reflection So that the distribution of the irradiation light emitted over the entire surface of the light-emitting surface 13b of the light guide plate 13 through scattering can be made uniform. The light scattering pattern 13c at this time may be a dot shape, a V-cut shape, or a Shibo shape, but is not limited thereto. As another embodiment of the light guide plate 13, it may be considered to include a plurality of prism patterns formed at regular intervals in the first direction on the inner bottom surface of the light guide plate 13. In this case, The incident irradiation light is incident on the prism pattern and is then changed so as to pass through the refracted light surface 13b because the incident angle of the irradiation light is smaller than the critical incident angle for total reflection.

Further, the light guide plate 13 may further include a light converging pattern for improving brightness on the light-emitting surface 13b. The light converging pattern may be a prism pattern, but is not limited thereto.

The light guide section may further include a reflection sheet (14) having a function of reflecting the input irradiation light toward the light surface (13b) side. The reflective sheet 14 is disposed on the lower surface of the light guide plate 13 and functions to reflect the light emitted to the lower surface of the light guide plate 13 and to return the light to the inside of the light guide plate 13, .

Further, the upper surface of the light guide plate 13 may further include a prism sheet 16, a diffusion sheet 15, or a combination thereof. The prism sheet 16 has a function of condensing and refracting light of a surface light source that is stacked on the upper side of the light guide plate 13 and emitted from the light guide plate 13 to control the traveling direction of light, , And a known configuration can be applied without limitation. In general, the prism sheet 16 is of two sets having a pattern formed in two perpendicular axes. The diffuser sheet functions to scatter light passing through the prism sheet to improve the uniformity of light. In the installation of the prism sheet 16 and the diffusion sheet 15, mutual positions can be reversed.

It is needless to say that the function of the diffusion sheet 15 or the prism sheet 16 may be applied to the light guide plate 13. The function of the diffusion sheet 15 is not limited to the function of the light guide plate 13, The function of the prism sheet 16 can be realized by forming a fine pattern on the light guide plate 13 using a mold and an injection technique.

1, the light irradiation module 10 may further include an incident optical module 17 for guiding an irradiation light from the light source 11 to the light incidence surface 13a, The beam splitter 17 is provided with an optical path changing means such as a lens or a mirror having a function of deflecting the path of the irradiation light from the light source 11 or an optical path changing means for changing the shape of the light from the light source 11 A spot size conversion), or a combination of these. As an example of the incident optical module 17, a cylindrical lens, a prism, or the like may be used, but the present invention is not limited thereto. Particularly, in the case of applying a laser as the light source 11, the cylindrical lens is disposed on the light incidence surface 13a of the light guide plate 13 so that the irradiation light from the light source 11 can be effectively incident on the light incidence surface 13a of the light guide plate 13. [ 13a in the longitudinal direction of the beam spot, for example, in a point shape.

3 (a), the incident-light optical module 17 may be a reflector 17a having a reflecting surface, and it is preferable that the light-incoming surface 13a of the light- (Light guide plate 13), and the shape of the light guide plate 13 is not limited to a specific shape. The reflector 17a is applicable regardless of whether the light source 11 is a point light source or a linear light source.

3 (b), in the case of a configuration in which two or more light sources 11 are applied to the light guide portion, a reflector 17a may be provided for each light source 11. [ 3 (c), when one light source 11 is applied to the light guide portion, a reflector 17a is provided on both side surfaces (the light incidence surface 13a and the other side surface 13d) of the light guide portion The emitted light can be again incident on the light guide portion (the light guide plate 13) side, and the efficiency can be increased.

4, the emission light measuring unit 18 is provided on the side opposite to the light source 11 with respect to the light guide plate 13, and is not emitted through the light-emitting surface 13b in the irradiation light from the light source 11 And a function of measuring the intensity of light (emitted light) emitted through the other side surface 13d with respect to the light incidence surface 13a. The output of the light source 11 is a consumable component. After a predetermined time, the output of the light source 11 is reduced. The intensity of the emitted light is measured through the emitted light measuring unit 18. When the measured result is less than a predetermined reference value, An alarm (alarm) may be transmitted so that the light source 11 can be replaced.

The optical sensor included in the emission light measuring unit 18 can be applied regardless of the type of optical element that functions to measure the intensity of emitted light or the like. For example, it may be implemented to include a photodiode.

The alarm module for alarming (replacement) of the light source 11 is visually transmitted (display of the remaining life of the light source 11 or display of the light source exchange message) via a separate display, Or transmitted through a vibration module or the like. However, the present invention is not limited to this example.

5, in an embodiment having two light sources on both sides of the light guide plate 13 as described above, the light guide plate 13 is provided on the opposite side of the first light source 11a to the first light source 11a A first emission light measuring unit 18a having a function of measuring the intensity of the emitted light from the irradiation light from the first light source 11a and a second light source 11b provided on the opposite side of the second light source 11b to the light guide plate 13, And the second emission light measurement unit 18b having a function of measuring the intensity of the emission light from the first light source 11a and the second light source 11b, Life can be measured. If the first light source 11a and the second emission light measurement unit 18b and the second light source 11b and the first emission light measurement unit 18a are installed at similar positions under these embodiments, A light scattering pattern 13c formed on the light guide plate 13 and a prism pattern are designed to prevent interference with the first light source 11a and the second emission light measurement unit 18b, , The second light source 11b and the first emission light measuring unit 18a may be spaced apart from each other by a predetermined distance or more.

The scalp or skin care device of the present invention may further include a control unit capable of adjusting the output of the light source 11. When a plurality of light irradiation modules 10 are provided, And may further include an adjustable control portion.

Referring to FIG. 7, a plurality of light irradiation modules 10 may be provided. In this case, the plurality of light irradiation modules 10 may have the same wavelength, It is also possible to provide a plurality of light irradiation modules 10 for generating irradiation light beams of different wavelength bands, which configuration is related to the shape of the frame 20.

The frame 20 is a structure in which the light irradiation module 10 is installed. Helmet type, headset type, hair band type, or bar type, but the present invention is not limited thereto.

When the helmet type frame 20 is applied, the frame 20 may have a predetermined length so that the light irradiation module 10 can have an appropriate gap with the user's head, A support member may be provided. In order to stably mount the frame 20 on the user's head, it may be considered to apply a configuration such as a chin strap, but the present invention is not limited to this example.

In a case where a headset type frame is applied, it includes a structure that is seated on both ear regions of a user, and has a horseshoe-shaped elastic member as a whole so as to provide a fixing force in the inward direction with respect to both ear portions of the user And adjustment of the interval between the user's head and the light irradiation module 10 may be applied to a known headset size adjustment configuration, but is not limited to this configuration.

It is possible to consider a configuration in which a horseshoe-shaped elastic member as a whole is provided to provide a fixing force in the inward direction with respect to the user's head even in the case of applying a hair band type frame, But the present invention is not limited to such a configuration. [0051] As shown in FIG.

Considering a comb-shaped frame 20 as an example of application of a bar-shaped frame, a body portion on which the light irradiation module 10 is mounted, But the present invention is not limited to such an example. It may be considered to provide a plurality of light irradiation modules 10 for each wavelength and to exchange them according to the target skin and scalp parts and exchange them for use in the body part. Further, it is also possible to consider a configuration in which a plurality of body parts, each having a plurality of light irradiation modules 10, are coupled for each wavelength, and a plurality of body parts are exchanged and attached to and detached from common knobs. It is not.

The scalp or skin care device of the present invention is a device for managing the device information (battery remaining amount, wavelength of the light source 11 currently in use, etc.) including state information (necessity of replacement, remaining service life, And a user interface (not shown) having a function of receiving a device operation condition (an output of the light source 11, a wavelength of the light source 11 (in the case of a variable wavelength light source), etc.) from a user . The device information providing means can be implemented through a configuration such as a display (time), a speaker (auditory), and a vibration module (tactile), but the present invention is not limited thereto. The input means for the operating condition may be a button, a voice recognition module, a touch pad, a touch panel, a dial, or the like, but is not limited thereto.

6, the light irradiation module 10 and the frame 20 are coupled to each other in such a manner that the light irradiation module 10 is fitted using the mounting hook 21 formed on the frame 20, However, the present invention is not limited to these embodiments. In the case where the light irradiation module 10 is configured to be removably attached to the frame 20, the ease of maintenance can be achieved.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: light irradiation module
11: Light source
11a: a first light source
11b: a second light source
The light guide portion
13:
13a:
13a1: 1st incidence surface
13a2: second incidence surface
13b:
13c: Light scattering pattern
13d: other side
14: reflective sheet
15: diffusion sheet
16: prism sheet
17: Adoptive optical module
17a: Reflector
18: emission light measuring unit
18a: first emission light measuring unit
18b: second emission light measuring unit
20: frame
21: Mounting hook

Claims (20)

In a scalp or skin care device,
A light source for generating a radiation beam, and
A light guide unit having a function of inputting an irradiation light from the light source and outputting the light to the scalp or skin side,
A light irradiation module;
A frame on which the light irradiation module is installed;
The skin or skin care device.
The method according to claim 1,
Wherein the light guiding unit includes a light guide plate having a light incidence surface to which irradiation light from the light source is input, and a light outputting surface that emits light to the scalp or skin side.
The method of claim 2,
Wherein the light guide portion further comprises a reflective sheet having a function of reflecting the input irradiation light toward the light emitting surface side.
The method of claim 2,
Wherein the light irradiation module further comprises an incident optical module for guiding an irradiation light from the light source to the light incidence surface.
The method of claim 4,
Wherein the light incident optical module is an optical path changing means, an optical shape changing means, or a combination thereof.
The method of claim 4,
Wherein the light-incident optical module is a reflector having a reflecting surface.
The method of claim 2,
(Light emission) provided on the opposite side of the light source with respect to the light guide plate and emitted through the other side of the light-emitting surface without being emitted through the light-emitting surface of the light source, And an emission light measuring unit having a function of measuring the amount of light emitted from the light source.
The method of claim 7,
Wherein the emitted light measuring unit comprises an optical sensor.
The method of claim 2,
Wherein the light guide portion further comprises a diffusion sheet positioned on an upper surface of a light output surface of the light guide plate and having a function of scattering an irradiation light emitted through the light output surface to uniformize the brightness of light. Device.
The method of claim 2,
Wherein the light guiding portion further comprises a prism sheet having a function of being positioned on an upper surface of a light exiting surface of the light guide plate and refracting and condensing the irradiated light ray through the light exiting surface to improve brightness. Skin care device.
The method of claim 2,
And a first light incidence surface and a second light incidence surface on both side portions of the light guide plate,
Wherein the light source includes a first light source for inputting an irradiation light to the first light incidence surface and a second light source for inputting an irradiation light to the second light incidence surface.
The method of claim 11,
The intensity of light emitted through the other side surface with respect to the first light incidence surface is measured without being emitted through the light exiting surface of the light guide from the first light source, A first emission light measurement unit having a function of emitting light; And
The intensity of light emitted through the other side surface with respect to the second light incidence surface is measured without being emitted through the light exiting surface of the light guide from the second light source, A second emission light measuring unit having a function of emitting light;
Further comprising: a skin or skin care device.
The method according to claim 1,
Wherein the light source is a laser, a laser diode, a light emitting diode (LED), an infrared diode or a lamp.
The method according to claim 1,
And a controller capable of adjusting an output of the light source.
The method according to claim 1,
Wherein the frame is a helmet type, a headset type, a hair band type, or a bar type.
The method according to claim 1,
Wherein a plurality of the light irradiation modules are provided.
18. The method of claim 16,
Wherein the light source of each of the plurality of light irradiation modules generates an irradiation light of a predetermined wavelength corresponding to the scalp or skin area to be light irradiated.
18. The method of claim 16,
And a controller capable of adjusting an output of each light source of each of the plurality of light irradiation modules.
The method according to claim 1,
Further comprising a user interface for providing the device information including the status information of the light source to the user and receiving device operating conditions including the output or wavelength of the light source from the user.
The method of claim 7,
Wherein the emission light measuring unit includes an alarm module having a function of providing a warning light for replacing a measured intensity of the emitted light with a predetermined reference value.

Images