KR20210025571A - Light emitting device for promoting hair growth and controlling method thereof - Google Patents

Abstract

A light outputting device for scalp care according to an embodiment of the present invention comprises: a dome-shaped outer case forming the outer shape; an inner case formed inside the outer case; a plurality of laser light sources disposed in the space between the outer case and the inner case; photodiodes included in the plurality of laser light sources, respectively; and a processor which acquires a light amount sensing value of a first photodiode among the plurality of photodiodes, sets an amount of light for a first laser light source including the first photodiode on the basis of the acquired light amount sensing value, and drives the first laser light source on the basis of the set amount of the light.

Description

Light output device for scalp care, and its control method TECHNICAL FIELD [LIGHT EMITTING DEVICE FOR PROMOTING HAIR GROWTH AND CONTROLLING METHOD THEREOF}

The present invention relates to a light output device, and more particularly, to a device that is worn on the user's head and outputs light for scalp care.

Modern people recognize their appearance as an important factor for informing and expressing others, and accordingly, investing a lot of money and time in appearance management to overcome defects in appearance.

Among them, hair loss is caused by various causes such as environmental, genetic, mental, and physical, and various technologies or treatments for preventing or treating hair loss are being studied.

Low level laser therapy (LLLT) is a therapy that induces the promotion of metabolism in a corresponding area and activates the function of the tissue by irradiating light of a specific wavelength to a living body tissue. Laser light used in low-power laser therapy penetrates into living tissues and activates ions in cells, thereby generating effects such as increased capillary production, increased oxygen concentration in blood, and promoted collagen production.

Based on such low-power laser therapy, methods and devices for promoting hair growth by irradiating laser light to the scalp to activate hair follicles and living tissues around the hair follicles have emerged.

The problem to be solved by the present invention is to provide an optical output device for scalp care that performs an optimal scalp care operation according to a user's hair loss state.

Another problem to be solved by the present invention is to provide an optical output device for scalp care capable of actively controlling driving of a care light source according to a user's scalp state while the care light source is being driven.

An optical output device for scalp care according to an embodiment of the present invention includes: a dome-shaped outer case forming an exterior; An inner case formed inside the outer case; A plurality of laser light sources disposed in a space between the outer case and the inner case; A photodiode included in each of the plurality of laser light sources; And acquiring a light amount sensing value of the first photodiode among a plurality of photodiodes, and setting an amount of light for the first laser light source including the first photodiode based on the acquired light amount sensing value, and And a processor that drives the first laser light source based on it.

When the light amount sensing value is a first sensing value, the processor sets the light amount to the first laser light source as a first light amount, and the light amount sensing value is a second sensing value higher than the first sensing value. , The amount of light for the first laser light source may be set to a second amount of light equal to or greater than the first amount of light.

According to an embodiment, the processor turns on at least one laser light source disposed within a predetermined distance from the first laser light source among the plurality of laser light sources, and based on the light emitted when the at least one laser light source is turned on. The light intensity sensing value of the first photodiode may be obtained.

According to an embodiment, the processor sequentially turns on the at least one laser light source, sequentially acquires at least one light intensity sensing value through the first photodiode, and sequentially acquires at least one light intensity sensing value. An average value may be calculated, and an amount of light for the first laser light source may be set based on the calculated average value.

The scalp care optical output device further includes a plurality of LEDs disposed in a space between the outer case and the inner case, and the processor includes the first light intensity sensing value of the first photodiode. It is possible to set the amount of light for at least one LED within a predetermined distance from the laser light source.

According to an embodiment, the processor may turn on at least one LED of the plurality of LEDs and obtain the light amount sensing value of the first photodiode based on light emitted when the at least one LED is turned on. have.

The scalp care optical output device further includes a temperature sensor, and the processor, while driving at least one of the plurality of laser light sources, obtains a temperature sensing value through the temperature sensor, and the obtained temperature sensing value Based on the driving, the amount of light of the at least one laser light source may be adjusted or the driving of the at least one laser light source may be stopped.

According to an embodiment, the processor checks the amount of increase in scalp temperature based on the difference between the initial temperature sensing value and the acquired temperature sensing value, and when the determined increase in scalp temperature is higher than a threshold, the amount of light of the at least one laser light source Can be reduced.

According to an embodiment, the processor obtains a temperature sensing value through the temperature sensor after a predetermined time elapses from a time when the amount of light of the at least one laser light source is reduced, and between the initial temperature sensing value and the acquired temperature sensing value. If the scalp temperature increase amount is checked based on the difference of and the confirmed scalp temperature increase amount is maintained higher than the threshold value, driving of the at least one laser light source may be stopped.

The scalp care optical output device further includes a humidity sensor, and the processor periodically acquires a humidity sensing value through the humidity sensor while driving at least one of the plurality of laser light sources, and is periodically acquired. The driving of the at least one laser light source being driven may be stopped according to the humidity change amount checked based on the humidity sensing value.

The scalp care light output device further includes at least one image sensor disposed to face the inside of the scalp care light output device, and the processor includes the user's scalp through the at least one image sensor. A head image may be obtained, the user's hair loss type information may be obtained based on the obtained head image, and at least one laser light source to be driven from among the plurality of laser light sources may be selected based on the obtained hair loss type information. .

The scalp care optical output device further includes a communication unit for connecting with a server or an electronic device, and the processor controls the communication unit to transmit the obtained head image to the server or the electronic device, and the server or The hair loss type information based on the head image may be received from the electronic device.

A method of controlling an optical output device for scalp care according to an embodiment of the present invention includes: acquiring a light intensity sensing value of a first photodiode among a plurality of photodiodes; Setting an amount of light for a first laser light source including the first photodiode based on the acquired light amount sensing value; And driving the first laser light source based on the set amount of light.

According to an embodiment of the present invention, the light output device for scalp care may determine a user's hair loss type using an image sensor such as a camera, and adjust the driving of the care light source according to the determined hair loss type.

In addition, the light output device may set different amounts of light according to the hair loss progression of each of the scalp regions by using the light amount sensing values of photodiodes provided in laser light sources distributed in various areas of the device.

Accordingly, the light output device may provide a more efficient scalp care function by using the user's hair loss type and the hair loss progression for each scalp region.

In addition, the light output device can actively adjust the amount of light or driving of the care light source according to the user's scalp condition (temperature, humidity, etc.) while the care light source is driven according to the scalp care function. Accordingly, deterioration or damage to the optical output device can be prevented, and a risk of deteriorating a user's scalp condition can be prevented in advance.

1 is a perspective view of an optical output device for scalp care according to an embodiment of the present invention.
2 is an exploded perspective view of the care main body of the optical output device shown in FIG. 1 as viewed from above.
3 is an exploded perspective view of the care main body of the light output device shown in FIG. 1 as viewed from the lower side.
4 is a view for explaining in more detail the support included in the care body.
5 is a bottom view of a care light source mounting unit included in the care main body.
6 is a bottom view of a care main body of the light output device shown in FIG. 1.
7 is an enlarged view of a laser light source, an image sensor, and a temperature/humidity sensor included in the care main body.
8 is a block diagram illustrating a control configuration of an optical output device for scalp care according to an embodiment of the present invention.
9 is a flowchart illustrating a method of controlling an optical output device for scalp care according to an embodiment of the present invention.
10 is an exemplary diagram related to an operation of determining a care light source to be activated based on a user's hair loss type described in FIG. 9.
11 is a flowchart illustrating an example of an operation of setting a light amount of a care light source based on a light amount sensing value of photodiodes included in the laser light sources.
12 is an exemplary diagram related to the embodiment of FIG. 11.
13 is a flowchart illustrating an example of an operation of setting a light amount of a care light source based on a light amount sensing value of photodiodes included in the laser light sources.
14 is an exemplary diagram related to the embodiment of FIG. 13.
FIG. 15 is a flowchart illustrating an operation of a scalp care light output device controlling driving of the care light source according to a temperature change checked through a temperature/humidity sensor while the care light source is being driven.
FIG. 16 is a flowchart for explaining an operation of the scalp care light output device controlling the driving of the care light source according to the humidity change checked through the temperature/humidity sensor while the care light source is being driven.

Hereinafter, exemplary embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but identical or similar elements are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted. The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have meanings or roles that are distinguished from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, when it is determined that a detailed description of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention It should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

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

1 is a perspective view of an optical output device for scalp care according to an embodiment of the present invention.

Referring to FIG. 1, the scalp care optical output device 1 (hereinafter referred to as'light output device') according to an embodiment of the present invention is implemented to output light to the user's scalp by being worn on the user's head. Can be. As the light output device 1 outputs the light, it may provide a function of promoting hair growth by activating hair follicle cells, increasing the production of capillaries, increasing the oxygen concentration in the blood, promoting collagen production, and the like.

This light output device 1 may include a care main body 2, a circumference adjustment part 4, and an operation device 5.

The care main body 2 is formed in a form of a dome to correspond to the shape of a person's head, so that light can be evenly irradiated to the user's scalp.

According to an embodiment, the care main body 2 may have a front curvature higher than a rear curvature when viewed from the top in terms of similarity to the shape of a human head, but this is not necessarily the case.

That is, in this specification, the term "dome" is a concept including not only the geometric dome itself, but also a shape similar to the dome. In the present specification, a shape similar to a dome may mean a shape in which each of the left and right directions and the front and rear directions has an arcuate shape (or streamline shape).

The care main body 2 may be provided with a plurality of light sources that output light for the user's scalp care. The plurality of light sources may include laser light sources (eg, laser diodes) and LEDs that output laser light. For example, the plurality of light sources may emit red light having a wavelength of about 630 nm to 670 nm, but are not limited thereto and may emit red light or infrared light. Red light can promote hair growth through activity of hair follicle cells, etc.

On the other hand, the laser light emitted by the laser light source has a stronger intensity than the light emitted from the LED and can penetrate deeper into the skin, thereby providing a higher scalp care effect. Accordingly, the laser light source in the care main body 2 is arranged to irradiate the laser light to an area where the need for scalp care is higher when the user wears it, thereby enabling intensive care for the area. The care light source unit provided in the care main body 2 will be described in more detail through the following drawings.

Meanwhile, the care main body 2 includes a sensor for measuring a user's scalp condition (temperature, humidity, etc.), at least one sensor for detecting a user's hair loss type, and a sensor for detecting whether or not a light output device is worn. It may further include various sensors.

The circumferential adjustment part 4 is formed at the lower end of the care main body 2 and may contact the circumferential surface of the head when the user wears it. The circumferential adjustment unit 4 may include a structure capable of adjusting the length to correspond to the circumferential surface of the head of various users. The care main body 2 is stably worn on the user's head by the circumferential adjustment unit 4 to irradiate light to the scalp.

Meanwhile, the light output device 1 may further include a user manipulation device 5 connected to the care body 2. For example, the user manipulation device 5 may be connected by wire through the care body 2 and the cable 52, but this is not necessarily the case and may be connected wirelessly through a wireless communication method.

For example, the user manipulation device 5 may be formed in a cylindrical shape so that the user can easily hold and use it by hand. The user manipulation device 5 may be provided with at least one button as an input unit for manipulating the light output device 1.

The user manipulation device 5 may provide an interface for turning on/off the power of the care main body 2 from the user or setting an operation mode of the care main body 2. As the user operation device 5 is implemented as a separate configuration from the care body 2, the user conveniently operates the care body 2 by using the user operation device 5 while wearing the care body 2 Can be adjusted.

In addition, the user manipulation device 5 may be provided with a battery that provides power for the operation of the light output device. As the battery is provided in the user manipulation device 5, the weight of the care main body 2 can be minimized to minimize user discomfort. The control elements included in the user manipulation device 5 will be described later with reference to FIG. 13.

Hereinafter, embodiments related to the structure of the care main body 2 and the arrangement of light sources will be described in more detail with reference to FIGS. 2 to 7.

FIG. 2 is an exploded perspective view of the care main body of the optical output device shown in FIG. 1 as viewed from above. 3 is an exploded perspective view of the care main body of the light output device shown in FIG. 1 as viewed from the lower side. 4 is a view for explaining in more detail the support included in the care body. 5 is a bottom view of a care light source mounting unit included in the care main body.

2 to 3, the care main body 2 may include an outer case 21, a support part 22, a light guide part 23, a care light source mounting part 24, and an inner case 25. have.

The outer case 21 may form the overall appearance of the care main body 2. For example, the outer case 21 may be made of a material such as plastic or stainless use steel (SUS), and may protect the internal components of the care main body 2 from the outside. On the other hand, the outer case 21 is formed to be opaque, it is possible to block the light emitted from the laser light sources or LEDs disposed therein is irradiated to the outside.

According to an embodiment, a side opening 212 and/or an upper opening 214 may be formed in the outer case 21. When the care main body 2 is worn, the inside of the care main body 2 (the space between the care main body 2 and the head) and the care main body 2 through the lateral opening 212 and/or the upper opening 214 ), air can circulate between the outside. Accordingly, heat generated by the driving of the care light sources of the care main body 2 is effectively radiated to the outside, so that deterioration of the performance of the light source can be prevented.

2 to 4, a support part 22 may be provided under the outer case 21.

The support body 221 forming the overall outer shape of the support 22 may be formed in an arcuate shape in the left and right directions and the front and rear directions, respectively, corresponding to the shape of the outer case 21.

The support 22 may be fastened to the inner surface of the outer case 21, but this is not necessarily the case. For example, when the support part 22 is implemented to be fastened to the inner surface of the outer case 21, at least one fastening groove 222 is formed in the support body 221, and the at least one fastening groove 222 is formed on the inner surface of the outer case 21. At least one fastening protrusion corresponding to the fastening groove 222 may be formed. Meanwhile, the at least one fastening groove 222 may function as an opening allowing air circulation between the inside and the outside of the care main body 2.

Meanwhile, the support part 22 may support and fix the light guide part 23 and the care light source mounting part 24 with respect to the outer case 21 and/or the inner case 25.

Referring to FIG. 4, at least one light guide part fastening groove 223 may be formed in the support part main body 221. For example, the at least one light guide part fastening groove 223 may be formed in the form of an opening in a partial region of the support part main body 221. The laser light source mounting part 232 of the light guide part 23 is inserted into the light guide part fastening groove 223, so that the light guide part 23 can be supported and fixed by the support part 22.

In addition, a plurality of PCB fixing portions 224 may be formed on the lower surface of the support body 221.

For example, each of the plurality of PCB fixing parts 224 may form an accommodation space in which a plurality of insertion protrusions formed on the upper surface of the care light source mounting part 24 are inserted and accommodated. When the plurality of insertion protrusions are formed in a circular or cylindrical shape, the PCB fixing part 224 may be implemented as a circular ring-shaped protrusion as shown in FIG. 4. In this case, an outer diameter of the plurality of insertion protrusions is formed to be equal to or smaller than an inner diameter of the PCB fixing portion 224, so that the plurality of insertion protrusions may be accommodated and fixed in the accommodation space. The above embodiment is for convenience of description, and the shape of the plurality of PCB fixing parts 224 is not limited thereto, and the plurality of PCB fixing parts 224 are various for fixing and supporting the care light source mounting part 24. It can be implemented in a form.

According to an embodiment, a temperature/humidity sensor fixing part 225 and an image sensor fixing part 226 may be further formed on the support body 221. The temperature/humidity sensor fixing part 225 is formed to correspond to an upper part of the temperature/humidity sensor mounted on the care light source mounting part 24 to fix and support the temperature/humidity sensor. The image sensor fixing part 226 may be implemented as an opening through which an upper portion of the image sensor mounted on the care light source mounting part 24 penetrates, and is fixed and supported.

That is, by the PCB fixing part 224, the temperature/humidity sensor fixing part 225, and the image sensor fixing part 226, the care light source mounting part 24 may be fixed and supported on the support part 22. . Meanwhile, according to an embodiment, the support 22 may be provided with a fastening part that is directly fastened to the care light source mounting part 24 to fix and support the care light source mounting part 24.

With continued reference to FIGS. 2 and 3, the light guide part 23 and the care light source mounting part 24 may be provided between the support part 22 and the inner case 25.

The light guide unit 23 may include a plurality of light guide mechanisms 231 and a laser light source mounting unit 232 provided with a first laser light source corresponding to each of the plurality of light guide mechanisms 231.

Each of the plurality of light guide mechanisms 231 may distribute and irradiate laser light emitted from a corresponding first laser light source to a plurality of areas. The first laser light source may be disposed so as not to directly irradiate laser light in the direction of the user's head (or the direction of the inner case).

The light guide mechanism 231 is formed in a rod shape, and the first laser light source may emit laser light in the longitudinal direction of the light guide mechanism 231.

In particular, the light guide mechanism 231 may be disposed at an angle closer to the tangent line than a vertical line with respect to the tangent line at a position corresponding to the inner case 25 in a longitudinal direction. For example, the light guide mechanism 231 may be arranged such that the length direction is parallel to the tangent line, but this is not necessarily the case.

The light guide mechanism 231 may reflect laser light emitted from the first laser light source and irradiate it in the direction of the user's head (or the direction of the inner case).

Details of the light guide mechanism 231 will be described in more detail later with reference to FIGS. 8 to 12.

The laser light source mounting unit 232 may each include a plurality of PCBs on which at least one first laser light source is mounted. 2 to 3 illustrate a laser light source mounting unit 232 including three PCBs, but the number of PCBs is not limited thereto. Meanwhile, the PCB may be implemented as a flexible flexible PCB (FPCB).

The light guide mechanism 231 may be fastened to the laser light source mounting portion 232. In particular, the light guide mechanism 231 may be fastened to correspond to the position of the first laser light source mounted on the laser light source mounting unit 232.

Since the laser light source mounting part 232 is inserted into the light guide part fastening groove 223 of the support part 22, the light guide part 23 may be fixed and supported by the support part 22.

A plurality of second laser light sources (laser diodes) and a plurality of LEDs are mounted on the care light source mounting unit 24, and a circuit pattern for supplying power to the plurality of second laser light sources and a plurality of LEDs is formed. I can. For example, the plurality of second laser light sources and the plurality of LEDs may be disposed to irradiate light toward a lower portion of the care light source mounting portion 24 (in the direction of the inner case 25).

In this regard, referring to FIG. 5, the care light source mounting unit 24 may include a substrate 241. The substrate 241 may be implemented as a flexible FPCB. Accordingly, the care light source mounting portion 24 may be bent in a dome shape (or arc shape) corresponding to the shape of the outer case 21 and the inner case 25. The care light source mounting part 24 is fixed and supported by the support part 22 described above, so that the bent state can be stably maintained.

Meanwhile, the substrate 241 may include a plurality of openings 243 respectively formed at positions corresponding to some of the plurality of light guide mechanisms 231. The area of the opening 243 may be equal to or larger than the area of the light guide mechanism 231. The light guide mechanism 231 may be disposed on the corresponding opening 243, or a portion including a lower surface may pass through the opening 243 and be disposed under the substrate 241.

Accordingly, the laser light emitted from each of the plurality of light guide mechanisms 231 may be irradiated to the user's scalp through the openings 243 formed at corresponding positions.

Meanwhile, a plurality of branch substrates 242 may be formed at one edge of the substrate 241. The plurality of branch substrates 242 may extend from one edge of the substrate 241. In FIG. 5, an example in which the plurality of branch substrates 242 extend radially from one edge of the substrate 241 is illustrated, but this is not necessarily the case.

For example, the substrate 241 may have three corners in a rectangular shape, and the other corner may include two straight portions and a curved portion formed between the two straight portions. The curved portion may be formed to be convex in the outer direction of the substrate 241. Each of the plurality of branch substrates 242 may extend from the curved portion.

The plurality of branch substrates 242 may be formed to be spaced apart from each other by a predetermined distance. Also, the branch substrates 242 located at the edges may be formed such that one edge (eg, the straight portion) of the substrate is also spaced apart by a predetermined distance. Accordingly, a plurality of gap regions 244 may be formed between the plurality of branch substrates 242 and in the branch substrate 242 and the substrate 241 positioned at the edges. The plurality of gap regions 244 may be formed to correspond to the light guide mechanisms 231 disposed relatively in front of the plurality of light guide mechanisms 231. The light guide mechanism 231 may be disposed on a corresponding gap region 244, or a portion including a lower surface may pass through the gap region 244 and be disposed under the substrate 241.

Accordingly, laser light emitted from each of the light guide mechanisms 231 disposed in the front may be irradiated to the user's scalp through the gap regions 244.

Meanwhile, a plurality of second laser light sources 245 and LEDs 246 may be disposed to be spaced apart from each other on the bottom surface of the substrate 241.

The output of the second laser light source 245 may be lower than that of the first laser light source 1000 (refer to FIG. 11) provided in the light guide part 23, but this is not necessarily the case. In addition, the output of the LEDs 246 may be lower than the output of each of the first laser light source 1000 and the second laser light source 245.

Meanwhile, the number of first laser light sources 1000 may be less than the number of second laser light sources 245, and the number of second laser light sources 245 may be less than the number of LEDs 246.

The laser light sources 1000 and 245 and the LED 246 may output red light. For example, the red light may correspond to a wavelength of about 630 nm to 670 nm, but this is not necessarily the case. According to an embodiment, the laser light sources 1000 and 245 and the LED 246 may output infrared light having a wavelength of about 780 nm to 1 mm.

Meanwhile, each of the second laser light sources 245 may be provided with a photodiode 264 for sensing an amount of light. The light output device 1 may accurately detect a user's hair loss state or hair loss type using the image sensor 262 and a plurality of photodiodes 264.

Further, on the substrate 241, a temperature/humidity sensor mounting area 247 in which a temperature/humidity sensor 266 (see FIG. 6) is mounted, and an image sensor mounting area 248 in which an image sensor 262 (see FIG. 6) is mounted. ) Can be formed. For example, each of the temperature/humidity sensor mounting area 247 and the image sensor mounting area 248 is formed closer to the center of the substrate 241 than the edge of the substrate 241, so that when the care body 2 is worn, the user's parietal (or crown) ). Accordingly, the temperature/humidity sensor 266 can effectively detect heat or moisture generated from the user's head. In addition, the image sensor 262 may effectively acquire an image for detecting whether hair loss has occurred in the parietal or parietal region.

Meanwhile, a care light source driver that drives the plurality of laser light sources and a plurality of LEDs, and a sensor controller that controls the image sensor 262, the temperature/humidity sensor 266, etc. are provided inside or outside the care body 2 It can be implemented on a separate PCB. According to an embodiment, the care light source driver and the sensor controller may be implemented in the care light source mounting unit 24.

2 and 3, the inner case 25 may be formed on the innermost side of the care main body 2. The support part 22, the light guide part 23, and the care light source mounting part 24 described above may be accommodated between the outer case 21 and the inner case 25 to be protected from the outside.

The inner case 25 may have a dome shape corresponding to the shape of the outer case 21. The inner case 25 may be smaller in size than the outer case 21, but this is not necessarily the case.

The inner case 25 is made of a material such as transparent plastic or silicon, so that light emitted from laser light sources and LEDs accommodated therein may pass through the inner case 25 and be irradiated to the scalp of the user.

According to an embodiment, a plurality of light guide mechanism openings 252 corresponding to positions of the plurality of light guide mechanisms 23 may be formed in the inner case 25. The laser light emitted from the light guide part 23 may be irradiated to the user's scalp through the plurality of light guide openings 252.

In addition, in the inner case 25, in order to improve the sensing accuracy of the temperature/humidity sensor 266 and the image sensor 262, a temperature/humidity sensor opening 254 corresponding to the temperature/humidity sensor 266 and an image An image sensor opening 256 corresponding to the sensor 262 may be further formed.

Hereinafter, features related to the arrangement of the light source and the sensors of the care main body will be described in more detail with reference to FIGS. 6 to 7.

6 is a bottom view of a care main body of the light output device shown in FIG. 1. 7 is an enlarged view of a laser light source, an image sensor, and a temperature/humidity sensor included in the care main body.

6 and 7, as described above, each of the plurality of light guide mechanisms 231 is exposed to the bottom of the care body 2 through the opening 243 or the gap region 244 of the substrate 241 , Laser light can be irradiated to the user's scalp. In addition, the inner case 25 is formed with a light guide mechanism opening 252 corresponding to the plurality of light guide mechanisms 231, so that the laser light emitted from the light guide mechanism 231 is transmitted through the inner case 25. It is possible to prevent the intensity of the time from decreasing.

In particular, the light guide mechanism 231 is implemented to distribute the laser light emitted from the first laser light source 1000 and irradiate it to a plurality of areas, and the distance between the plurality of areas is the second laser light sources 245. Small compared to the interval between Accordingly, the light guide mechanism 231 can more closely irradiate the laser light to a specific area, thereby maximizing a care effect. In addition, the light guide mechanism 231 may maximize efficiency by irradiating laser light to a wide area with one first laser light source 1000.

Meanwhile, the light emitted from the second laser light sources 245 and the LEDs 246 may pass through the inner case 25 and be irradiated to the user's scalp.

The plurality of LEDs 246 are evenly distributed over various areas of the substrate 241 to provide an overall care function for various areas of the user's head.

According to an embodiment of the present invention, the light output device 1 may obtain information about a user's hair loss type by using at least one image sensor 262a and 262b. For example, the first image sensor 262a may be disposed to face the front of the user from the front side of the inner surface of the outer case 21. In addition, the second image sensor 262b may be disposed to face the user's head and head from the central side of the light output device 1.

The light output device 1 may obtain information about a user's hair loss type based on images (head images) acquired by the first image sensor 262a and the second image sensor 262b.

Meanwhile, a photodiode 264 for sensing the amount of light may be provided in each of the laser light sources 246 dispersed in the care body.

The light output device 1 may detect a hair loss state of each of the user's scalp regions using the photodiodes 264 and adjust the amount of light applied to each of the scalp regions based on the detection result.

Meanwhile, as the care light sources 1000, 245, and 246 emit light, they may emit heat together with the light. In this case, the performance of the care light sources 1000, 245, and 246 may gradually deteriorate due to the heat.

In addition, as the scalp temperature of the user rises due to the heat or sweat is generated from the scalp, there is a concern that side effects may occur to the user, and the light emitted from the care light sources 1000, 245, 246 is It may be reflected and the care effect may be lowered.

The controller 550 controls the care light sources 1000, 245, and 246 to obtain temperature and humidity information through the temperature/humidity sensor 266 while irradiating the light to the scalp, and to the obtained temperature and humidity information. Based on the care light sources 1000, 245, 246 may be controlled.

For example, the temperature/humidity sensor 266 may be provided to face the inside (scalp side) at a predetermined position of the light output device 1 to detect temperature and humidity. To this end, the temperature/humidity sensor 266 may include a temperature sensor 266a and a humidity sensor 266b. According to an embodiment, the temperature/humidity sensor 266 may further include a moisture content detection sensor 266c for directly detecting the moisture content present in the scalp or hair.

8 is a block diagram illustrating a control configuration of an optical output device for scalp care according to an embodiment of the present invention.

In FIG. 8, it is assumed that the control elements of the light output device 1 are distributed and provided in the care main body 2 and the user operation device 5. However, according to the embodiment, the control elements are in the care main body 2. All may be provided.

Referring to FIG. 8, the care main body 2 of the light output device 1 includes a plurality of first laser light sources 1000, a plurality of second laser light sources 245, a plurality of LEDs 246, at least It may include one image sensor 262, a temperature/humidity sensor 266, and a controller 270.

The plurality of first laser light sources 1000 and the second laser light sources 245 may be implemented as a laser diode that emits laser light. As described above, the amount of light (output) of the first laser light source 1000 may be greater than the amount of light of the second laser light source 245. In addition, the number of first laser light sources 1000 may be less than the number of second laser light sources 245.

The plurality of first laser light sources 1000 may be provided corresponding to the plurality of light guide mechanisms 231 shown in FIG. 2. The plurality of first laser light sources 1000 may not be disposed to directly face the scalp when worn.

The plurality of second laser light sources 245 may be mounted to be spaced apart from each other on the care light source mounting unit 24 as shown in FIGS. 5 to 6.

On the other hand, the first laser light source 1000 and the second laser light source 245, as described above in FIG. It may be disposed to correspond to an area including the crown part 730.

The plurality of LEDs 246 are disposed in various areas of the substrate 241 to irradiate light to various areas of the user's scalp.

Meanwhile, each of the first laser light sources 1000, the second laser light sources 245, and the plurality of LEDs 246 may emit red light having a wavelength of about 630 nm to 670 nm. Red light can promote hair growth by promoting the activity of hair follicles.

At least one image sensor 262 may acquire an image including the user's head area. The controller 550 may detect a user's hair loss state, hair loss type, and the like based on the acquired image. According to an embodiment, a photodiode 264 may be provided in each of the second laser light sources 245. In this case, the controller 550 may detect the hair loss state or the hair loss type using the at least one image sensor 262 and the photodiode 264.

The temperature/humidity sensor 266 may detect the temperature and humidity of a region adjacent to the user's scalp during operation of the light output device 1. The controller 550 may control the light output of the care light sources 1000, 245, and 246 based on the sensed temperature and humidity.

The control unit 270 provided in the care main body 2 controls the operation of the care light source driver 272 and sensors 262, 264, 266 to control on/off of the care light sources 1000, 245, and 246. It may include a sensor controller 274 to control.

When a control signal for each of the care light sources 1000, 245, and 246 is received from the processor 552 of the control unit 550, the care light source driver 272 is configured to control the care light sources 1000, 245 based on the received control signal. , 246) Each light output can be controlled.

In addition, when a control signal for each of the sensors 262, 264, and 266 is received from the processor 552, the sensor controller 274 controls the driving of the sensors 262, 264, and 266 based on the received control signal. can do. The sensor controller 274 may transmit sensing data received from each of the sensors 262, 264, and 266 to the processor 552.

According to an embodiment, the care light source driver 272 and the sensor controller 274 may be implemented in the control unit 550 or may be implemented integrally with the processor 552.

Meanwhile, the user manipulation device 5 of the optical output device 1 includes a communication unit 510, an input unit 520, an output unit 530, a memory 540, a control unit 550, and a power supply unit 560. can do.

The communication unit 510 may include at least one communication module for connecting the optical output device 1 to a user's mobile terminal (smart phone, tablet PC, etc.) or a server. For example, the at least one communication module may support a short-range wireless communication method such as Bluetooth or a wireless Internet method such as Wi-Fi.

For example, the control unit 550 may transmit operation or state information of the optical output device 1 to the user's mobile terminal through the communication unit 510. In addition, the controller 350 may transmit the user's scalp status information, hair loss status information, and/or hair loss type information to the user's mobile terminal through the communication unit 510. The scalp status information, hair loss status information, and hair loss type information may be information obtained based on sensing data of the image sensor 262 and/or the plurality of photodiodes 264.

The input unit 520 may receive an input related to power on/off of the optical output device 1, setting of an operation mode, and the like from a user. For example, the input unit 520 may include at least one button.

The output unit 530 may output information such as a power state, an operation mode, and a battery state of the light output device 1. For example, the output unit 530 may include at least one light source 532 and a speaker 534 outputting the information in an acoustic form.

The memory 540 includes control data for controlling components included in the light output device 1 or data related to the light output setting of the care light sources 1000, 245, 246 according to each of a plurality of operation modes. can do.

In addition, the memory 540 stores data or algorithms for generating scalp status information, hair loss status information, and/or hair loss type information from sensing values provided from the image sensor 262 and/or a plurality of photodiodes 264. Can include.

In addition, the memory 540 may include data or an algorithm for controlling the light output of the care light sources 1000, 245, and 246 based on temperature and humidity information provided from the temperature/humidity sensor 266.

The memory 540 may be understood as a concept encompassing at least one volatile memory (such as RAM) and at least one nonvolatile memory (such as ROM and Flash memory).

The controller 550 may control the overall operation of the light output device 1. The controller 550 may include at least one processor (or controller). In addition, in terms of hardware, the controller 550 may include at least one CPU, an application processor (AP), a microcomputer, an IC, an application specific integrated circuit (ASIC), and the like.

For example, the controller 550 may include a processor (main processor) 552, an image signal processor (ISP) 554, an amplifier IC 556, a charger IC 558, and the like.

The processor 552 may correspond to a main processor that controls the overall operation of the optical output device 1. For example, the processor 552 sets an operation mode of the optical output device 1 based on an input received through the input unit 520, and controls components included in the optical output device 1 according to the set operation mode. I can. In addition, the processor 552 controls the operation of the other components 554, 556, 558 included in the control unit 550, and even the operation of the care light source driver 272 and the sensor controller 274 of the care main body 2 can do.

Meanwhile, the processor 552 may detect a hair loss state or a hair loss type of the user based on sensing values obtained from the image sensor 262 and/or the plurality of photodiodes 264. The processor 552 determines the light output of the care light sources 1000, 245, and 246 corresponding to at least one of the plurality of zones (ZONE1 to Zone3; see FIG. 7) based on the detected hair loss state or hair loss type. Can be controlled.

The ISP 554 may generate an image by processing a sensing value obtained from the image sensor 262. The generated image may include the user's scalp. The processor 552 may transmit the generated image to a user's terminal or the like through the communication unit 510.

The amplifier IC 556 may control the sound output of the speaker 534 included in the output unit 530, and the charger IC 558 may charge or supply power to the battery 562 of the power supply unit 560. Can be controlled.

The power supply unit 560 may provide power required for the operation of the light output device 1 in each of the components. For example, the power supply unit 560 may include a battery 562. The power supply unit 560 includes a terminal for connecting to an external power supply source, and may charge the battery 562 with power supplied from the outside through the terminal. The power supply unit 560 may supply power to components included in the care main body 2 through the cable 52.

Hereinafter, embodiments related to the control operation of the optical output device 1 will be described with reference to FIGS. 9 to 16.

9 is a flowchart illustrating a method of controlling an optical output device for scalp care according to an embodiment of the present invention. 10 is an exemplary diagram related to an operation of determining a care light source to be activated based on a user's hair loss type described in FIG. 9.

Referring to FIG. 9, the processor 552 may acquire a head image of a wearer (user) using at least one image sensor 262 (S100).

For example, the processor 552 uses the at least one image sensor 262 when the optical output device 1 is driven for the first time or when a request for measurement of a hair loss type is received from a user through the input unit 520. The user's head image can be acquired.

6, when the at least one image sensor 262 includes the first image sensor 262a and the second image sensor 262b, the head image is obtained from the first image sensor 262a. It may include a first head image and a second head image obtained from the second image sensor 262b. For example, the first head image may include the user's front head, and the second head image may include the user's head and head.

The optical output device 1 may obtain information on a user's hair loss type based on the acquired head image (S110). The light output device 1 may determine care light sources to be activated (to be driven) among a plurality of care light sources 1000, 245, and 246 included in the light output device 1 based on the acquired hair loss type information. (S120).

Referring to FIG. 10 with respect to steps S110 and S120, hair loss of the person 700 is mainly in the frontal part 711, the anterior temporal part 712, 713, the parietal part 720, and/or the parietal part 730. Can occur.

Accordingly, according to an embodiment of the present invention, the plurality of light guide mechanisms 231 and the second laser light sources 245 that emit laser light may include the frontal head 711, the anterior temporal portions 712 and 713, and the parietal portion. It is disposed so as to correspond to 720 and the crown 730, and provides a more intensive care function for the areas.

On the other hand, in general, since there is a relatively low probability that hair loss occurs in the temporal region, the optical guide mechanism 231 and the second laser light source 245 are not disposed at a position corresponding to the temporal region, thereby providing an efficient care function. However, it is not limited thereto.

The processor 552 may obtain information about a user's hair loss type based on the acquired head image.

To classify the general types of hair loss, M-type hair loss in which hair loss progresses gradually from the anterior temporal region (712, 713), V-type hair loss in which hair loss gradually progresses from the parietal region (730), and gradual hair loss from the parietal region (720) F-type hair loss in progress, front head 711, anterior temporal head 712, 713, parietal part 720, and U-type hair loss in which hair loss proceeds in combination are present in the parietal part 730.

The processor 552 is based on the hair loss type based on the color and brightness of regions corresponding to the frontal portion 711, the anterior temporal portion 712, 713, the parietal portion 720, and the parietal portion 730 from the acquired head image. Information can be obtained.

On the other hand, the light output device 1 according to an embodiment of the present invention includes the laser light sources 1000 and 245 provided in the care main body 2 and the LEDs 246 in a plurality of zones (eg, ZONE1, ZONE2, It can be divided into ZONE3).

The light output device 1 may drive the laser light sources 1000 and 245 and/or the LEDs 246 included in at least one zone based on the obtained hair loss type information.

For example, when the detected hair loss type is M-type hair loss, the processor 552 turns on only laser light sources corresponding to the first zone (ZONE1), and corresponds to the second zone (ZONE2) and the third zone (ZONE3). The laser light sources may not be turned on. Similarly, the controller 550 may turn on only the LEDs corresponding to the first zone (ZONE1), and may not turn on the LEDs corresponding to the remaining zones. However, according to an embodiment, in order to provide an overall care function for the entire scalp, the controller 550 may turn on all of the LEDs regardless of the type of hair loss.

According to an embodiment, the processor 552 may transmit the acquired head image to an electronic device such as a server through the communication unit 510. The server may analyze the received head image to obtain the user's hair loss type information, and may transmit the obtained hair loss type information to the optical output device 1.

Again, FIG. 9 will be described.

The light output device 1 may set the amount of light of the care light sources to be driven based on the result of measuring the amount of light of the photodiodes 264 provided in the second laser light sources 245 (S130). The light output device 1 may perform a scalp care operation by driving the care light sources based on the set amount of light (S140).

That is, the care light sources to be driven may be determined based on steps S110 to S120, and the amount of light of each of the care light sources to be driven may be individually set based on steps S130 to S140.

Steps S130 to S140 will be described in more detail later with reference to FIGS. 11 to 14.

The light output device 1 may adjust the amount of light or stop the scalp care operation based on the measurement result of the temperature/humidity sensor 266 while the care light source is being driven (S150).

The processor 552 minimizes the occurrence of side effects and reduces the performance of the light output device 1 by adjusting the amount of light of the care light source or stopping the scalp care operation based on changes in scalp temperature or humidity while the care light source is being driven. Can be minimized.

An embodiment related to step S150 will be described with reference to FIGS. 15 to 16.

11 is a flowchart illustrating an example of an operation of setting a light amount of a care light source based on a light amount sensing value of photodiodes included in the laser light sources. 12 is an exemplary diagram related to the embodiment of FIG. 11.

Referring to FIG. 11, the light output device 1 may turn on the LEDs 246 among the care light sources and turn off the second laser light sources 245 (S200 ).

The light output device 1 acquires a light amount sensing value of each of the photodiodes 264 provided in the second laser light sources 245 (S210), and based on the acquired light amount sensing value, the care light sources 1000, 245, 246) It is possible to set the respective amount of light (S220).

The light output device 1 may drive the care light sources 1000, 245, and 246 based on the set amount of light (S230 ).

In this regard, referring to FIG. 12, the processor 552 may turn on the LEDs 246a and 246b and turn off the second laser light source 245a.

In this case, the photodiode 264a provided in the second laser light source 245a may sense the amount of light emitted from the LEDs 246a and 246b and reflected from the scalp.

The amount of light sensed by the photodiode 264a may be related to the progression of hair loss in the scalp region corresponding to the second laser light source 245a. For example, as the degree of depilation in the corresponding scalp region increases, the amount of light detected by the photodiode 264a may increase.

The processor 552 receives the light intensity sensing value of the photodiode 264a, and exists in a predetermined area including the second laser light source 245a and the second laser light source 245a based on the received light intensity sensing value. The amount of light of the care light sources 1000, 245, and 246 can be set.

For example, the processor 552 may increase the amount of light of the care light sources 1000, 245, 246 as the received light amount sensing value increases. On the other hand, as the received light amount sensing value decreases, the processor 552 may reduce the light amount of the care light sources 1000, 245, and 246.

For example, when the light amount sensing value is the first sensing value, the processor 552 may set the amount of light of the care light sources 1000, 245, and 246 existing in the predetermined area as the first amount of light. On the other hand, when the light amount sensing value is a second sensing value higher than the first sensing value, the processor 552 sets the amount of light of the care light sources 1000, 245, 246 to a second amount of light equal to or greater than the first amount of light. I can.

13 is a flowchart illustrating an example of an operation of setting a light amount of a care light source based on a light amount sensing value of photodiodes included in the laser light sources. 14 is an exemplary diagram related to the embodiment of FIG. 13.

13 to 14, the light output device 1 turns off any one of the plurality of second laser light sources 245 and turns off the second laser light source 245a. At least one of the second laser light sources (245b ~ 245g) may be turned on (S300).

At least one second laser light source 245b to 245g around the turned off second laser light source 245a means a second laser light source disposed within a preset distance from the turned off second laser light source 245a. I can.

The light output device 1 may obtain a light amount sensing value from the photodiode 264a included in the turned off second laser light source 245a (S310).

Similar to the above-described in FIGS. 11 to 12, the photodiode 264a is emitted from at least one second laser light source 245b to 245g around the off second laser light source 245a, and the amount of light reflected from the scalp Can be detected.

As an example, the processor 552 sequentially turns on at least one second laser light source 245b to 245g around the turned off second laser light source 245a one by one and sequentially performs the light intensity sensing values through the photodiode 264a. Can be obtained. The processor 552 may set the amount of light of the care light sources by calculating an average value of the sequentially acquired light amount sensing values.

As another example, the processor 552 may obtain a light amount sensing value through the photodiode 264a while turning on some of the at least one second laser light source 245b to 245g.

As another example, the processor 552 may obtain a light amount sensing value through the photodiode 264a while turning on all of the at least one second laser light source 245b to 245g.

The amount of light sensed by the photodiode 264a may be related to the progression of hair loss in the scalp region corresponding to the turned off second laser light source 245a. For example, as the degree of depilation in the corresponding scalp region increases, the amount of light detected by the photodiode 264a may increase.

The light output device 1 may set the amount of light of the care light sources 1000, 245, and 246 in a predetermined area including the second laser light source 245a based on the acquired light amount sensing value (S320 ). The light output device 1 may drive the care light sources 1000, 245, and 246 based on the set amount of light (S330 ).

11 to 14, the processor 552 may each obtain a light amount sensing value of the photodiodes 264 provided in the plurality of second laser light sources 245. The processor 552 may set different amounts of light of each of the care light sources 1000, 245, and 246 based on the acquired light amount sensing values.

Accordingly, the light output device 1 may provide an efficient scalp care function by setting different amounts of light according to the hair loss progression of each of the scalp regions.

FIG. 15 is a flowchart illustrating an operation of a scalp care light output device controlling driving of the care light source according to a temperature change checked through a temperature/humidity sensor while the care light source is being driven.

Referring to FIG. 15, the light output device 1 may periodically acquire a temperature sensing value through the temperature/humidity sensor 266 while the care light sources 1000, 245, and 246 are being driven (S400 ).

As the light output device 1 performs the scalp care function, when the care light sources 1000, 245, and 246 are turned on, the temperature of the scalp and the scalp surroundings is reduced by heat generated from the care light sources 1000, 245, and 246. It can rise.

When the temperature of the scalp and surrounding the scalp is excessively increased, the light output efficiency of the care light sources 1000, 245, and 246 decreases, thereby deteriorating the performance of the light output device 1. In addition, in the case of users with sensitive skin characteristics, side effects such as deteriorating scalp condition may occur as the scalp temperature increases.

The optical output device 1 may determine an increase in scalp temperature during scalp care based on the currently acquired temperature sensing value and the initially acquired temperature sensing value (S410).

The processor 552 may determine an increase in scalp temperature during scalp care based on a difference between the scalp temperature at the time when the care light sources 1000, 245, and 246 are turned on and the current scalp temperature. This is because the scalp temperature of each of the users may be different.

When the confirmed scalp temperature increase amount is greater than or equal to the threshold value (YES in S420), the light output device 1 reduces the amount of light of the activated care light sources 1000, 245, and 246, or the care light sources 1000, 245, 246 ) Can be stopped driving (S430).

The processor 552 may reduce the amount of light of the activated care light sources 1000, 245, 246 by a predetermined amount when the scalp temperature increase amount is greater than or equal to a threshold value (eg, 2° C.).

When the scalp temperature increase amount is maintained above the threshold value even after a predetermined time elapses after the decrease in the amount of light, the processor 552 may turn off the care light sources 1000, 245, and 246.

According to an embodiment, the processor 552 may output a message through the output unit 530 to induce the user to reuse the optical output device 1 after a predetermined period of rest.

FIG. 16 is a flowchart illustrating an operation of a scalp care light output device controlling driving of the care light source according to a change in humidity checked through a temperature/humidity sensor while the care light source is being driven.

Referring to FIG. 16, the light output device 1 may periodically acquire a humidity sensing value through the temperature/humidity sensor 266 while the care light sources 1000, 245, and 246 are being driven (S500 ).

As the light output device 1 performs the scalp care function, when the care light sources 1000, 245, and 246 are turned on, the temperature of the scalp and the scalp surroundings is reduced by heat generated from the care light sources 1000, 245, and 246. It can rise. When the temperature around the scalp and scalp rises, the humidity around the scalp and the scalp may rise as sweat occurs from the scalp.

When sweating occurs on the scalp, the scalp care effect may be deteriorated as the light emitted from the care light sources 1000, 245, and 246 is not sufficiently irradiated to the scalp. In addition, when the humidity around the scalp and the scalp increases, moisture is generated in the care light sources 1000, 245, 246 or the circuit of the light output device 1, resulting in deterioration or damage of the light output device 1 May be.

Meanwhile, according to an embodiment, the user may wear the light output device 1 while the hair is wet. In order to prevent the light output device 1 from being used while the hair is wet, the processor 552 induces to reuse the light output device 1 after drying the hair when the initially acquired humidity sensing value is higher than the reference value ( A message may be output through the output unit 530 or the like).

The light output device 1 may check the amount of change in humidity based on the acquired humidity sensing value (S510).

During scalp care, when sweat occurs from the user's scalp, the scalp and the humidity around the scalp may increase rapidly. Accordingly, the processor 552 may check the amount of change in humidity based on a difference between the previously acquired humidity sensing value and the currently acquired humidity sensing value.

When the confirmed humidity change amount (increased amount) is greater than or equal to the threshold value (YES in S520), the light output device 1 may stop driving the activated care light sources 1000, 245, and 246 (S530).

The processor 552 may recognize that sweat is generated from the scalp when the humidity change amount is greater than or equal to the threshold value. Accordingly, the processor 552 may turn off the activated care light sources 1000, 245, and 246.

According to an embodiment, the processor 552 may output a message through the output unit 530 to induce the user to reuse the optical output device 1 after a predetermined period of rest.

That is, according to the embodiment shown in FIGS. 13 to 16, the light output device 1 is operated according to the scalp state (temperature, humidity, etc.) of the care light source during driving of the care light source according to the scalp care function. The amount of light or driving can be actively adjusted. Accordingly, deterioration or damage of the optical output device 1 can be prevented, and a risk of deteriorating a user's scalp condition can be prevented in advance.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (20)

In the light output device for scalp care,
A dome-shaped outer case forming an exterior;
An inner case formed inside the outer case;
A plurality of laser light sources disposed in a space between the outer case and the inner case;
A photodiode included in each of the plurality of laser light sources; And
Acquiring the light intensity sensing value of the first photodiode among the plurality of photodiodes,
Based on the acquired light amount sensing value, set the light amount for the first laser light source including the first photodiode,
An optical output device for scalp care comprising a processor that drives the first laser light source based on a set amount of light. The method of claim 1,
The processor,
When the light amount sensing value is the first sensing value, the amount of light to the first laser light source is set as the first amount of light,
When the light amount sensing value is a second sensing value higher than the first sensing value, the light output device for scalp care is configured to set the amount of light for the first laser light source to a second amount of light equal to or greater than the first amount of light. The method of claim 1,
The processor,
Turning on at least one laser light source disposed within a predetermined distance from the first laser light source among the plurality of laser light sources,
An optical output device for scalp care for acquiring the sensing value of the amount of light of the first photodiode based on light emitted when the at least one laser light source is turned on. The method of claim 3,
The processor,
Sequentially turning on the at least one laser light source, sequentially obtaining at least one light intensity sensing value through the first photodiode,
Calculate an average value of at least one light intensity sensing value acquired sequentially,
An optical output device for scalp care that sets the amount of light for the first laser light source based on the calculated average value. The method of claim 1,
Further comprising a plurality of LEDs disposed in the space between the outer case and the inner case,
The processor,
An optical output device for scalp care for setting an amount of light for at least one LED within a predetermined distance from the first laser light source based on the light amount sensing value of the first photodiode. The method of claim 5,
The processor,
Turning on at least one of the plurality of LEDs,
A light output device for scalp care that acquires the sensing value of the amount of light of the first photodiode based on light emitted when the at least one LED is turned on. The method of claim 1,
Further comprising a temperature sensor,
The processor,
While driving at least one of the plurality of laser light sources, a temperature sensing value is obtained through the temperature sensor,
An optical output device for scalp care for adjusting the amount of light of the at least one laser light source being driven or stopping driving of the at least one laser light source based on the acquired temperature sensing value. The method of claim 7,
The processor,
Check the amount of increase in scalp temperature based on the difference between the initial temperature sensing value and the acquired temperature sensing value,
An optical output device for scalp care for reducing the amount of light of the at least one laser light source when the confirmed scalp temperature increase is higher than a threshold value. The method of claim 8,
The processor,
A temperature sensing value is obtained through the temperature sensor after a predetermined time has elapsed from the time when the amount of light of the at least one laser light source is reduced,
Check the amount of increase in scalp temperature based on the difference between the initial temperature sensing value and the acquired temperature sensing value,
The scalp care light output device for stopping driving of the at least one laser light source when the confirmed scalp temperature increase amount is maintained higher than the threshold value. The method of claim 1,
Further comprising a humidity sensor,
The processor,
During driving of at least one of the plurality of laser light sources, a humidity sensing value is periodically acquired through the humidity sensor,
An optical output device for scalp care for stopping the driving of the at least one laser light source that is being driven according to the humidity change amount checked based on the periodically acquired humidity sensing value. The method of claim 1,
Further comprising at least one image sensor disposed to face the inner side of the scalp care light output device,
The processor,
Acquiring a head image including the user's scalp through the at least one image sensor,
Acquiring the user's hair loss type information based on the acquired head image,
An optical output device for scalp care for selecting at least one laser light source to be driven from among the plurality of laser light sources based on the obtained hair loss type information. The method of claim 11,
Further comprising a communication unit for connecting to the server or the electronic device,
The processor,
Controlling the communication unit to transmit the obtained head image to the server or the electronic device,
An optical output device for scalp care that receives the hair loss type information based on the head image from the server or the electronic device. In the control method of a light output device for scalp care comprising a plurality of laser light sources and a photodiode included in each of the plurality of laser light sources,
Acquiring a light intensity sensing value of the first photodiode among the plurality of photodiodes;
Setting an amount of light for a first laser light source including the first photodiode based on the acquired light amount sensing value; And
Control method of a scalp care light output device comprising the step of driving the first laser light source based on a set amount of light. The method of claim 13,
The step of setting the amount of light,
When the light amount sensing value is the first sensing value, the amount of light to the first laser light source is set as the first amount of light,
When the light amount sensing value is a second sensing value higher than the first sensing value, the amount of light for the first laser light source is set to a second amount of light equal to or greater than the first amount of light. The method of claim 13,
The step of obtaining the light intensity sensing value,
Turning on at least one laser light source disposed within a predetermined distance from the first laser light source among the plurality of laser light sources; And
And acquiring the light amount sensing value of the first photodiode based on the light emitted when the at least one laser light source is turned on. The method of claim 13,
The scalp care light output device further includes a plurality of LEDs,
The step of setting the amount of light,
The control method of a scalp care light output device further comprising the step of setting an amount of light for at least one LED within a predetermined distance from the first laser light source based on the light amount sensing value of the first photodiode. The method of claim 16,
The step of obtaining the light intensity sensing value,
Turning on at least one of the plurality of LEDs; And
A method of controlling a scalp care light output device comprising the step of acquiring the sensing value of the amount of light of the first photodiode based on light emitted when the at least one LED is turned on. The method of claim 13,
Obtaining a temperature sensing value through a temperature sensor while driving at least one of the plurality of laser light sources; And
The control method of a scalp care light output device further comprising: adjusting the amount of light of the at least one laser light source being driven or stopping driving of the at least one laser light source based on the obtained temperature sensing value. The method of claim 13,
Obtaining a humidity sensing value through a humidity sensor while driving at least one of the plurality of laser light sources; And
The control method of a scalp care light output device further comprising the step of stopping driving of the at least one laser light source that is being driven based on the acquired humidity sensing value. The method of claim 13,
Acquiring a head image including the user's scalp;
Acquiring information on the type of hair loss of the user based on the acquired head image; And
The control method of a scalp care light output device further comprising the step of selecting at least one laser light source to be driven from among the plurality of laser light sources based on the obtained hair loss type information.

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