KR102268339B1 - Illumination device for health care - Google Patents

Abstract

Various embodiments of the present invention relate to an optical output device for healthcare. According to various embodiments of the present disclosure, an optical output device for healthcare includes a mask frame having a facial shape of a human body; a plurality of LEDs disposed on the mask frame and outputting light to a body part facing the mask frame; an LED substrate disposed on the mask frame and provided with a circuit for lighting the plurality of LEDs; and a wavelength converter disposed on the plurality of LEDs to convert the light output from the plurality of LEDs into near-infrared light, wherein the wavelength converter may include near-infrared quantum dots. Other embodiments may be possible.

Description

Optical Output Device for Healthcare {ILLUMINATION DEVICE FOR HEALTH CARE}

The present invention relates to a light output device for healthcare, and more particularly, to a device capable of managing a user's skin using quantum dots emitting near-infrared rays.

Cosmetics are the most widely used method to maintain youth and beauty by managing the facial skin so that it does not lose its elasticity. However, under the stratum corneum of the epidermis, a protective barrier is formed with a thick protein protective layer, and since the epidermis and dermis of the skin are separated by this protein protective layer, biomaterials are added to the dermis layer even when using cosmetics with excellent skin protection effect. It is difficult to obtain the effect of skin care only by using cosmetics because it cannot remove the wastes accumulated in the skin and the nutrition of cosmetics does not penetrate deep into the dermis layer.

In order to overcome the limitations of skin protection ingredients that do not reach the dermal layer, optical medical technology is being used. Optical medical technology for skin care uses the principle of promoting biochemical reactions in the skin by irradiating light to the skin using various light sources, such as sunlight, laser, fluorescent lamp, and ultraviolet lamp, to selectively regenerate or regenerate skin tissue. It is a technology that heals damaged skin through destruction.

In particular, recently, a device (eg, a mask-type skin care device, etc.) that is attached to or worn on a user's face and outputs light has appeared. A plurality of light sources (eg, LEDs, etc.) may be disposed in the light output device to output light toward the user's facial skin or the like.

Unlike high-power lasers, LED light sources can be irradiated to diseased areas over a large area with appropriate light output. The skin treatment technology using LED light sources is similar to the principle that sunlight is converted from plants to plant cells through chlorophyll. By irradiating an LED light source, a photo-biochemical reaction between skin cells is induced. In particular, it has been proven through numerous studies that near-infrared light has an excellent effect on skin care.

However, the existing LED light source can emit red light or infrared light, but does not accurately emit light corresponding to near infrared light, so there is a problem in that the skin care effect according to the near infrared light is deteriorated.

In addition, skin care is effective as the mind and body of the user using the light output device for health care becomes more stable, but existing devices have a problem in that all LED light sources are driven when the device is simply turned on regardless of the user's state.

1. Domestic Registered Patent No. 10-1862280 (May 23, 2018) 2. Domestic Registered Patent No. 10-1710008 (2017.02.20.) 3. Domestic Registered Patent No. 10-1395791 (2014.05.09.)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an optical output device for healthcare with high near-infrared light reproducibility by including a wavelength converter including infrared quantum dots.

Another object of the present invention is to provide an optical output device for healthcare that can control the amount of near-infrared light suitable for the user's condition by driving a plurality of LEDs according to the user's heart rate.

Another object of the present invention is to provide an optical output device for healthcare, which can easily notify a user of a failure of near-infrared emission.

According to various embodiments of the present disclosure, an optical output device for healthcare includes a mask frame having a facial shape of a human body; a plurality of LEDs disposed on the mask frame and outputting light to a body part facing the mask frame; an LED substrate disposed on the mask frame and provided with a circuit for lighting the plurality of LEDs; and a wavelength converter disposed on the plurality of LEDs to convert the light output from the plurality of LEDs into near-infrared light, wherein the wavelength converter may include infrared quantum dots.

The method of claim 1, wherein the wavelength of the light emitted from the near-infrared quantum dots may be 630 nm to 950 nm, and the diameter of the near-infrared quantum dots may be 2 nm to 20 nm.

The wavelength converter may have a plate shape overlapping all of the plurality of LEDs.

The wavelength converter may include a plurality of sub-wavelength converters, and the plurality of sub-wavelength converters may be disposed on the plurality of LEDs, respectively.

It may further include a diffusion film disposed between the plurality of LEDs and the wavelength conversion unit to provide the light incident from the plurality of LEDs to the wavelength conversion unit.

a biometric sensor disposed on the mask frame; and a controller configured to control the plurality of LEDs based on the biometric information sensed by the biometric sensor.

The controller may check the heart rate of the user using the biosensor, compare the checked heart rate with the average heart rate range, and drive the plurality of LEDs according to the comparison result.

The controller may output a notification corresponding to the comparison result.

an optical sensor detecting the light emitted from the wavelength converter; and a controller configured to control the plurality of LEDs based on the wavelength of the light sensed by the optical sensor.

The control unit detects the light emitted from the wavelength converter using the optical sensor, compares the detected wavelength with a reference wavelength range, and among the detected light, the light outside the reference wavelength range is a total amount of light When the contrast ratio is greater than or equal to the reference ratio, a notification indicating the occurrence of a failure may be output.

According to the present invention as described above, it has various effects as follows.

The present invention can increase the near-infrared light reproducibility by including a wavelength converter including infrared quantum dots.

In addition, the present invention can increase the effect of skin regeneration, wound treatment, infection treatment, wrinkle improvement, etc. of the user by emitting near-infrared rays.

In addition, the present invention can block ultraviolet rays having a wavelength of 10 nm to 450 nm by absorbing light of a short wavelength through an infrared quantum dot and converting it to a long wavelength.

In addition, the present invention can control the amount of near-infrared light suitable for the user's condition by driving a plurality of LEDs according to the user's heart rate.

In addition, the present invention can increase user convenience by easily notifying the user of a failure of near-infrared emission.

1 is a perspective view illustrating an optical output device according to an embodiment of the present invention.
2 is a cross-sectional view illustrating an optical output device according to an embodiment of the present invention.
3A is a graph analyzing the wavelength of emitted light emitted from an optical output device according to an embodiment of the present invention.
3B is a graph analyzing the wavelength of emitted light when the wavelength converter according to an embodiment of the present invention is applied to an LED fluorescent lamp.
FIG. 3c is a graph analyzing the wavelength of emitted light when the wavelength converter according to an embodiment of the present invention is applied to a general fluorescent lamp.
4 is a cross-sectional view illustrating an optical output device according to another embodiment of the present invention.
5 is a cross-sectional view illustrating an optical output device according to another embodiment of the present invention.
6 is a block diagram illustrating an optical output device according to an embodiment of the present invention.
7 is a block diagram illustrating a light output control method according to an embodiment of the present invention.
8 is a block diagram illustrating a method of notifying a failure of an optical output device according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. And, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of the functions of the present invention, which may vary according to the intention or custom of the user or operator. Therefore, the definition should be made based on the content throughout this specification.

A preferred embodiment of the present invention will be described with reference to the accompanying drawings as follows. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only this embodiment allows the disclosure of the present invention to be complete and the scope of the invention to those of ordinary skill in the art completely It is provided to inform you.

Various embodiments of the present document may be implemented as software (eg, a program) including instructions stored in a machine-readable storage medium (eg, a computer). The device is a device capable of calling a stored command from a storage medium and operating according to the called command, and may include an electronic device (eg, a server) according to the disclosed embodiments. Instructions may include code generated or executed by a compiler or interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' means that the storage medium does not include a signal and is tangible, and does not distinguish that data is semi-permanently or temporarily stored in the storage medium.

According to an example, the method according to various embodiments disclosed in the present document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product may be distributed in the form of a machine-readable storage medium (eg, compact disc read only memory (CD-ROM)) or online through an application store (eg, Play Store™). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

Each of the components (eg, a module or a program) according to various embodiments may be composed of a singular or a plurality of entities, and some sub-components of the aforementioned sub-components may be omitted, or other sub-components may be It may be further included in various embodiments. Alternatively or additionally, some components (eg, a module or a program) may be integrated into a single entity to perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component are executed sequentially, parallel, iteratively, or heuristically, or at least some operations are executed in a different order, are omitted, or other operations are added. can be

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

1 is a perspective view illustrating an optical output device according to an embodiment of the present invention. 2 is a cross-sectional view illustrating an optical output device according to an embodiment of the present invention. 3 is a graph analyzing the wavelength of emitted light emitted from the optical output device according to an embodiment of the present invention.

1 to 3 , the light output device 100 for healthcare according to an embodiment of the present invention is worn on a part of the user's body and outputs light (eg, near-infrared light) to the user's skin. It may be a device that promotes cell activity to improve wrinkles, elasticity, and skin tone, or to help improve skin troubles. The light output device 100 for healthcare may constitute one skin care package together with a cradle mounted when the light output device 100 is charged or stored. As it is mounted in the cradle, a battery (not shown) provided in the light output device 100 for healthcare may be charged by power supplied from the cradle.

In an embodiment, the light output device 100 for healthcare may correspond to a mask-type device that is worn on the user's face and outputs light to the user's facial skin. In order to evenly output light over the entire face of the user, the light output device 100 for healthcare may be formed to be round according to the shape of a person's face.

In an embodiment, the optical output device 100 for healthcare may include a mask frame 10 , a plurality of LEDs 20 , an LED substrate 30 , and a wavelength converter 40 .

In one embodiment, the mask frame 10 having the facial shape of the human body may be molded into a wearable form on the user's face by injection molding or press molding using a mold. The mask frame 10 may have an opening for securing a view of the user when worn by the user. A portion of the mask frame 10 in contact with the human face may be made of a material such as rubber or silicone, and may have an opaque color that minimizes light transmission.

In an embodiment, the plurality of LEDs 20 are disposed on the mask frame 10 and may output light to a body part facing the mask frame 10 . The plurality of LEDs 20 may be arranged at equal intervals. The plurality of LEDs 20 may be disposed in an appropriate number in consideration of the size of the user's face, power consumption, the total amount of near-infrared light required for skin care, and the like. The plurality of LEDs 20 may all output light of the same color, and otherwise may output light of different colors. For example, the plurality of LEDs 20 may include at least one of a blue LED, a red LED, a green LED, and a yellow LED.

In an embodiment, the LED substrate 30 is disposed on the mask frame 10 and a circuit for lighting the plurality of LEDs 20 may be installed. The LED substrate 30 may be coupled to the mask frame 10 through a method such as bolting (not shown), and may be made of a metal material such as aluminum having high thermal conductivity.

In an embodiment, the wavelength converter 40 is disposed on the plurality of LEDs 20 and may convert light (a) output from the plurality of LEDs 20 into near-infrared light (b). For example, the wavelength converter 40 may convert blue light, red light, green light, or yellow light incident from the plurality of LEDs 20 into near-infrared light and emit it to the outside. For example, the wavelength converter 40 may have a plate shape overlapping all of the plurality of LEDs 20 .

For example, a quantum dot refers to a semiconductor crystal formed by gathering hundreds to thousands of atoms. The size of the quantum dots may be, for example, between several nanometers and several tens of nanometers. As such, the quantum dot has a very small size, so a quantum confinement effect occurs. The quantum confinement effect is that, when the particle is very small, the electrons in the particle form a discontinuous energy state by the outer wall of the particle. The smaller the size of the space in the particle, the higher the energy state of the electron and the wider the energy band interval. means losing effect. Quantum dots can generate light of various wavelengths when light such as ultraviolet light or visible light is incident according to the quantum confinement effect. In this case, the quantum dots scatter and emit the incident light. The length of the wavelength of light generated from the quantum dots may depend on the size of the particle. Specifically, when light having a wavelength greater than the energy band interval is incident on a quantum dot, the quantum dot is excited by absorbing the energy of the light, and is in a ground state while emitting light of a specific wavelength. In this case, as the size of the quantum dot is smaller, light of a relatively short wavelength, for example, blue light or green light, is generated, and as the size of the quantum dot is larger, light of a relatively long wavelength, for example red light, is generated. light can be generated. Therefore, light of various colors can be implemented according to the size of the quantum dot.

In an embodiment, the wavelength converter 40 may include near-infrared quantum dots. The wavelength of light emitted from the near-infrared quantum dots is in the near-infrared region, and may be in the range of 630 nm to 1,500 nm, preferably in the region of 630 nm to 950 nm in which medical effects have been proven. As shown in FIG. 3A , the wavelength of the light emitted from the wavelength converter 40 is 580 nm to 800 nm, and it can be confirmed that it is a long wavelength corresponding to the near-infrared region.

In addition, referring to FIG. 3B , when the wavelength converter according to the embodiment of the present invention is applied to the LED fluorescent lamp, it was confirmed that the near-infrared region increases. Referring to FIG. 3C , the wavelength conversion according to the embodiment of the present invention in a general fluorescent lamp It was confirmed that the near-infrared region increased even when negative was applied.

That is, it can be confirmed through FIGS. 3A to 3C that the near-infrared region is generated in the region where there is no infrared ray, and the effect of increasing the near-infrared region is generated in the region where there is at least some infrared ray.

In an embodiment, the near-infrared quantum dots are not limited as long as they are materials capable of emitting light in a wavelength band of the near-infrared region, for example, quantum dots, cyanine, fluorescein, tetramethylrhodamine, body and a material selected from the group consisting of BODIPY, Alexa Y2O2S:Eu, Y2O3:Eu, (Y,Gd)BO3:Eu, and combinations thereof.

In one embodiment, the near infrared quantum dots are CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeZnS, ZnSTe, HgSeS, HgSe, CdTe, HgSTe, CdTe CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, CdHgZnTe, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe; GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb; SnS, SnSe, SnTe, PbS, PbSe, PbTe, SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, SnPbSSe, SnPbSeTe, SnPbSTe; It may include a material selected from the group consisting of Si, Ge, SiC, SiGe, CdSe-ZnS, InP-ZnS, and combinations thereof.

In an embodiment, the near-infrared quantum dots may have a diameter of 2 nm to 20 nm. For example, the quantum dots having a size of 2 nm to 20 nm may emit light in the near-infrared region.

In an embodiment, the shell material of the near-infrared quantum dots is zinc sulfide (ZnS), zinc selenide (ZnSe), tri-methyl-gallium, gallium acetate, gallium chloride, gallium. Gallium oleate, gallium stearate, zinc stearate, zinc oleate, zinc acetae, dimethyl zinc, diethylzinc ), tri-n-octylphosphineselenide, tri-n-butylphosphineselenide, tri-n-phenylphosphine selenide, Di-n-octylphosphine selenide, di-n-butylphosphineselenide, tri-n-phenylphosphineselenide ), mono-n-octylphosphine selenide (tri-noctylphosphineselenide), mono-n-butylphosphine selenide (trin-butylphosphine selenide), mono-n-phenylphosphine selenide (tri-n-phenylphosphine selenide) , selenium powder (Selenium), selenium dioxide (Selenium dioxide), seleno-urea (Seleno-urea), octaneselenol (octaneselenol), dodecane-selenol (dodecane-selenol), tri-n-octylphosphinesulfide (tri) -n-octylphosphine sulfide), tri-n-butylphosphine sulfide, tri-n-phenylphosphine sulfide, di-n -Octylphosphine sulfide (tri-n-octylphosphinesulfide), di-n-butylphosphine sulfide (tri-n-butylphosphine sulfide), di-n-phenylphosphine sulfide (tri-nphenylphosphinesulfide), mono-n-octylphos Pinsulfide (tri-n-octylphosphine sulfide), mono-n-butylphosphine sulfide (tri-n-butylphosphine sulfide), mono-n-phenylphosphine sulfide (tri-n-phenylphosphine sulfide), sulfur powder (elemental sulfur) powder), sulfur oxide, thio-urea, octanethiol, dodecanethiol, and combinations thereof.

4 is a cross-sectional view illustrating an optical output device according to another embodiment of the present invention.

Referring to FIG. 4 , the wavelength converter 40 may include a plurality of sub-wavelength converters 41 . The plurality of sub-wavelength converters 41 may be respectively disposed on the plurality of LEDs 20 . As the sub-wavelength converter 41 is disposed as shown in FIG. 4 , the conversion ratio of the light emitted from the plurality of LEDs 20 to near-infrared light may increase, and the skin treatment effect may increase.

5 is a cross-sectional view illustrating an optical output device according to another embodiment of the present invention.

Referring to FIG. 5 , the light output device 100 for healthcare may further include a diffusion film 50 . The diffusion film 50 is disposed between the plurality of LEDs 20 and the wavelength converter 40 , and may provide light incident from the plurality of LEDs 20 to the wavelength converter 50 .

In one embodiment, the diffusion film 50 may be formed of a light-transmitting material capable of guiding the light irradiated from the plurality of LEDs 20 . The diffusion film 50 may be formed of acrylic, polycarbonate (PC), polypropylene (PP), silicone, PMMA (Poly Methyl Methacrylate Acrylate) material, or other types of synthetic resin material, Various pattern patterns for forming this irradiated pattern may be formed. The diffusion film 50 may be arranged in variously deformed shape according to the arrangement of the plurality of LEDs 20 .

As the diffusion film 50 is disposed as shown in FIG. 5 , near-infrared rays may be uniformly irradiated to the user's face.

6 is a block diagram illustrating an optical output device according to an embodiment of the present invention.

Referring to FIG. 6 , the light output device 100 for healthcare according to an embodiment of the present invention includes a control unit 110 , a light source unit 120 , a sensor unit 130 , a display unit 140 , a speaker 150 , It may include a communication unit 160 , an input unit 170 , and a power supply unit 180 .

In an embodiment, the controller 110 may control overall operations of each component included in the optical output device 100 for healthcare. For example, the control unit 110 may drive the plurality of LEDs 20 based on the heart rate of the user obtained using the biometric sensor 131 , and may be adjusted to the wavelength of light obtained using the optical sensor 132 . Based on this, it is possible to inform whether there is a failure. Details will be described later with reference to FIGS. 7 and 8 .

In an embodiment, the light source unit 120 may include a plurality of LEDs 20 and an LED substrate 30 . The plurality of LEDs 20 may be arranged at equal intervals and may emit light to the surroundings. The LED substrate 30 may be provided with a circuit for lighting the plurality of LEDs 20 .

In an embodiment, the sensor unit 130 may include a biometric sensor 131 , an optical sensor 132 , and a proximity sensor 133 .

In an embodiment, the biometric sensor 131 may be a sensor that measures the user's heartbeat data. For example, the biosensor 131 may be at least one of an optical sensor, an electrocardiogram (ECG) sensor, and a photoplethysmography (PPG) sensor. When the biometric sensor 131 is implemented as an optical sensor, the biometric sensor 131 may include a light emitting unit and a light receiving unit. The light emitting unit may be at least one of IR (Infrared), Red LED, Green LED, and Blue LED, and the light receiving unit may be a photodiode. When the light output device 100 is attached to the user's body, the light emitting unit of the biometric sensor 131 may output light, and the light receiving unit returns the light output from the light emitting unit reflected by at least a part of the user's body. that can be detected For example, the light may enter a depth (eg, a blood vessel) deeper than the user's skin in order to determine the user's blood flow change amount and then be reflected back out. The biosensor 131 may quantify the amount of light detected by the light receiving unit and sequentially arrange them to generate a signal. The biometric sensor 131 may transmit the generated signal to the controller 110 . However, the generated signal may include various other noises in addition to the frequency measured by the user's heartbeat. Alternatively, the PPG sensor may use a principle in which the degree of absorption and reflection of light changes according to a change in the thickness of a blood vessel according to a heartbeat. When the biometric sensor 131 is implemented as a PPG sensor, the biometric sensor 131 may include a light emitting unit that emits infrared rays and a light receiving unit that detects light reflected from the light emitting unit to the user's body. The biosensor 131 may detect a photoplethysmography (PPG) signal from a change in the amount of light blood flow with time detected by the light receiving unit.

In an embodiment, the optical sensor 132 may detect infrared rays. The optical sensor 132 may include a substrate, an infrared absorber that absorbs infrared rays to generate thermal energy, and a plurality of thermocouples that receive thermal energy from the infrared absorber to generate electromotive force.

In an embodiment, the proximity sensor 133 may detect whether the light output device 100 for healthcare is worn on the user's body. For example, the proximity sensor 133 may detect that a portion of the user's body (eg, face) approaches the proximity sensor 133 as the light output device 100 for healthcare is worn. The proximity sensor 133 may transmit a detection signal according to detection of proximity of a user's body part to the controller 110 . The controller 110 may detect whether the light output device 100 is worn based on a detection signal transmitted from the proximity sensor 133 .

In an embodiment, the display unit 140 may visually provide the user with the current operating state of the light output device 100 for healthcare, the remaining amount of the battery, and the like.

In an embodiment, the speaker 150 may output sound under the control of the controller 110 .

In an embodiment, the communication unit 160 may include at least one of a long-distance communication module (eg, an RF communication module) or a short-range communication module (eg, Bluetooth, WiFi, and Zigbee).

In an embodiment, the input unit 170 may be a device that provides a function for a user to operate the optical output device 100 for healthcare. The input unit 170 may be connected to the optical output device 100 by wire through a cable, but this is not always the case and may be connected wirelessly through a wireless communication method. The input unit 170 may provide an interface for a user to turn on/off the power of the optical output device 100 or set an operation mode of the optical output device 100 .

In an embodiment, the power supply unit 180 may supply voltage to each component of the optical output device 100 for healthcare. For example, the power supply unit 180 may be a battery. Also, the power supply unit 180 may receive electricity from the outside, convert the supplied electricity into direct current electricity for lighting the plurality of LEDs 20 , and supply it to the circuit pattern of the LED substrate 30 .

In an embodiment, the external device 20 may be a device used by a user. The external device 20 may be a device in which a dedicated application capable of remotely controlling the optical output device 100 for healthcare is installed. The optical output device 100 for healthcare and the external device 20 may be communicatively connected to each other through a network. Here, the network may include a wireless network and a wired network. For example, the network may be a short-range communication network (eg, Bluetooth, WiFi direct, or infrared data association (IrDA)) or a telecommunications network (eg, a cellular network, the Internet, or a computer network (eg, a LAN or WAN)). have.

In one embodiment, the external device 20, for example, a smartphone (smartphone), a tablet PC (tablet personal computer), a mobile phone (mobile phone), a video phone, an e-book reader (e-book reader), Desktop PC (desktop PC), laptop PC (laptop PC), netbook computer, workstation, server, PDA (personal digital assistant), PMP (portable multimedia player), MP3 player, mobile It may include at least one of a medical device, a camera, and a wearable device.

7 is a block diagram illustrating a light output control method according to an embodiment of the present invention. The operations of FIG. 7 may be performed by the controller 110 of FIG. 6 .

Referring to FIG. 7 , according to an embodiment, in operation 71 , the controller 110 may detect wearing by the user using the proximity sensor 133 .

In an embodiment, in operation 72 , the controller 110 may check the heart rate of the user using the biometric sensor 131 .

In an embodiment, in operation 73 , the controller 110 may compare the checked heart rate with the average heart rate range. For example, the controller 110 may compare the heart rate detected through the biometric sensor 131 with the heart rate information stored in the database. For example, the controller 110 may determine that the user's heart rate is higher than the normal heart rate as a result of the comparison.

In an embodiment, the controller 110 may drive the plurality of LEDs 20 according to the comparison result in operation 74 . For example, when the heart rate of the user is higher than the heart rate in a normal state as a result of the comparison, only some (50% to 80% of the total) of the plurality of LEDs 20 may be driven (rest mode). On the contrary, when the heart rate of the user is in a normal state as a result of comparison, all LEDs 20 may be driven (normal mode).

In an embodiment, the controller 110 may output a notification corresponding to the comparison result in operation 75 . For example, the control unit 110 may display a color indicating a rest mode or a normal mode through the display unit 140 , and alternatively may output a sound corresponding to the corresponding mode through the speaker 150 . Also, the controller 110 may output peaceful music through the speaker 150 so that the heart rate of the user is calmed. As described above, the light output device for healthcare of the present invention can increase the skin care effect of the user by driving the plurality of LEDs 20 according to the user's heart rate.

8 is a block diagram illustrating a method of notifying a failure of an optical output device according to an embodiment of the present invention. The operations of FIG. 9 may be performed by the controller 110 of FIG. 6 .

Referring to FIG. 8 , in an embodiment, the controller 110 may detect light emitted from the wavelength converter 40 using the optical sensor 132 in operation 81 .

In an embodiment, in operation 82 , the controller 110 may compare the detected wavelength of light with a reference wavelength range. For example, the reference wavelength range may be a wavelength range of near-infrared light.

In an embodiment, in operation 83 , the controller 110 may determine whether the detected light, which is outside the reference wavelength range, is equal to or greater than the reference ratio to the total amount of light. The reference ratio may be 20% to 50%.

In an embodiment, in operation 84, when the detected light out of the reference wavelength range is greater than or equal to the reference ratio to the total amount of light, the controller 110 displays a notification indicating the occurrence of a failure on the display unit 140 or the speaker. It can be output through (150). That is, in the present invention, since near-infrared light must be emitted to enhance skin care effect, when the amount of near-infrared light is low compared to the total amount of light, it can be determined as a malfunction, and the user can exchange it for a new product that normally emits near-infrared light.

According to various embodiments of the present disclosure, an optical output device for healthcare includes a mask frame having a facial shape of a human body; a plurality of LEDs disposed on the mask frame and outputting light to a body part facing the mask frame; an LED substrate disposed on the mask frame and provided with a circuit for lighting the plurality of LEDs; and a wavelength converter disposed on the plurality of LEDs to convert the light output from the plurality of LEDs into near-infrared light, wherein the wavelength converter may include near-infrared quantum dots.

According to various embodiments, the wavelength of the light emitted from the near-infrared quantum dots may be 630 nm to 950 nm, and the diameter of the near-infrared quantum dots may be 2 nm to 20 nm.

According to various embodiments, the wavelength converter may have a plate shape overlapping all of the plurality of LEDs.

According to various embodiments, the wavelength converter includes a plurality of sub-wavelength converters,

According to various embodiments, the plurality of sub-wavelength converters may be respectively disposed on the plurality of LEDs.

According to various embodiments, a diffusion film disposed between the plurality of LEDs and the wavelength conversion unit may further include a diffusion film that provides light incident from the plurality of LEDs to the wavelength conversion unit.

According to various embodiments, a biometric sensor disposed on the mask frame; and a controller configured to control the plurality of LEDs based on the biometric information sensed by the biometric sensor.

According to various embodiments of the present disclosure, the controller may check the heart rate of the user using the biometric sensor, compare the checked heart rate with the average heart rate range, and drive the plurality of LEDs according to the comparison result.

According to various embodiments, the controller may output a notification corresponding to the comparison result.

According to various embodiments, an optical sensor for detecting the light emitted from the wavelength converter; and a controller configured to control the plurality of LEDs based on the wavelength of the light detected by the optical sensor.

According to various embodiments, the control unit detects the light emitted from the wavelength converter using the optical sensor, compares the wavelength of the detected light with a reference wavelength range, and among the detected light, the reference wavelength range When the amount of light that is out of the range is greater than or equal to the reference ratio to the total amount of light, a notification indicating the occurrence of a failure may be output.

In the above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are only provided to help a more general understanding of the present invention, and that the present invention is limited to the above embodiments No, those of ordinary skill in the art to which the present invention pertains can devise various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and not only the claims described below, but also all modifications equivalently or equivalently to the claims described below belong to the scope of the spirit of the present invention. will be.

10: Mask Frame
20: LED
30: LED board
40: wavelength conversion unit
41: sub-wavelength conversion unit
50: diffusion film

Claims (10)

a mask frame having a facial shape of a human body;
a plurality of LEDs disposed on the mask frame and outputting light to a body part facing the mask frame;
an LED substrate disposed on the mask frame and provided with a circuit for lighting the plurality of LEDs;
a wavelength converter disposed on the plurality of LEDs and converting the light output from the plurality of LEDs into near-infrared light; and
A biometric sensor disposed on the mask frame and a controller configured to control the plurality of LEDs based on biometric information sensed by the biometric sensor,
The wavelength converter includes a near-infrared quantum dot,
The wavelength converter includes a plurality of sub-wavelength converters that are respectively disposed on the plurality of LEDs and are spaced apart from each other,
The control unit checks the user's heart rate using the biometric sensor, and drives only a part of the plurality of LEDs when the user's heart rate is higher than the average heart rate according to a result of comparing the confirmed heart rate and the average heart rate range and,
An optical output device for healthcare, characterized in that when the heart rate of the user is equal to the average heart rate, all of the plurality of LEDs are driven. According to claim 1, wherein the wavelength of the light emitted from the near-infrared quantum dots is 630nm to 950nm, and the diameter of the near-infrared quantum dots is a light output device for healthcare, characterized in that 2nm to 20nm. delete delete The light output device for healthcare according to claim 1, further comprising a diffusion film disposed between the plurality of LEDs and the wavelength conversion unit and providing light incident from the plurality of LEDs to the wavelength conversion unit. . delete delete The apparatus of claim 1, wherein the control unit outputs a notification corresponding to the comparison result. According to claim 1, wherein the optical sensor for detecting the light emitted from the wavelength converter; and
and a controller for controlling the plurality of LEDs based on the wavelength of the light detected by the optical sensor. 10. The method of claim 9, wherein the control unit,
Detecting the light emitted from the wavelength converter using the optical sensor,
Comparing the wavelength of the detected light with a reference wavelength range,
The light output device for healthcare, characterized in that, when the detected light out of the reference wavelength range is equal to or greater than a reference ratio of the total amount of light, a notification indicating the occurrence of a failure is output.

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