WO2020040435A1 - Light therapeutic apparatus - Google Patents

Abstract

The present invention relates to a light therapeutic apparatus which can evenly treat or improve a skin condition for the entire region of skin from the epidermis to the hypodermis. To this end, the light therapeutic apparatus of the present invention comprises a light irradiating unit including at least one narrow wavelength light source for irradiating light of a predetermined single wavelength, and a wide wavelength light source for irradiating white visible light so as to irradiate light by covering a visible light region to which light is not irradiated by the narrow wavelength light source.

Description

Phototherapy device

The present invention relates to a phototherapy device, and more particularly, to a phototherapy device that can treat or improve a skin condition by irradiating light toward the skin.

Phototherapy methods use lasers, specific light wavelengths, LEDs, IPL's (Intense Pulsed Light) and other light sources for exposure to specific light wavelengths during the time prescribed for treating the disease and for cosmetically improving the hair, scalp and skin. It involves doing.

The use of phototherapy in medicine and aesthetics is rapidly evolving as more and more light wavelengths are identified to target various cellular segments, stimulate cellular proficiency, improve and treat the body, and rejuvenate.

In recent years, as society changes rapidly and the quality of life improves, the interest in personal beauty is more than ever, and people are investing a lot of money in this personal beauty.

Representative examples of personal beauty include skin care, weight control, and cosmetic surgery. Among these, skin care beauty to improve the condition of facial skin such as wrinkle removal of facial skin, increased elasticity, and acne treatment is common and important beauty. It is becoming an area and its interest is also increasing.

In accordance with this trend, in recent years, the development of a home skin care device of the light irradiation method that can be purchased easily and conveniently at a price even at home and anyone can easily use in a general home.

As described above, as an example of the home skin beauty machine of the light irradiation method, the home skin beauty machine which has comprised LED which irradiates the light which has a wavelength of a specific area as a light source attracts attention.

In particular, a mask-type beauty device that is electrically attached to a user's face has recently been widely used.

Conventional mask-type cosmetic device is to irradiate light of about 630nm wavelength to care the epidermal layer, LED to irradiate light of about 730nm to care the dermal layer, light of about 850nm to care the subcutaneous layer It consists of LEDs such as LEDs that irradiate light.

However, since the LED for irradiating light of a specific wavelength is expensive, there is a disadvantage in that it acts as a factor to increase the price of the mask-type cosmetic device.

In addition, there is a problem in that care is not made for areas other than the epidermal layer, the dermal layer, and the subcutaneous layer, specifically, the area between the epidermal layer and the dermal layer, and the area between the dermal layer and the subcutaneous layer, as it is composed of LEDs irradiating light of a specific wavelength. .

(Prior art document)

Registered Patent No. 10-1862280 (Registration date May 23, 2018)

An object of the present invention for solving the problems according to the prior art is to provide an optical therapy apparatus that can evenly treat or improve the skin condition for the entire area of the skin from the epidermal layer to the subcutaneous layer.

Further, another object of the present invention is to combine an LED for irradiating low-cost white light irradiating white light in the wavelength range of 380 nm to 780 nm, and an optical filter unit for selectively transmitting only light having a wavelength range of 495 nm or more among the light irradiated from the LED. The present invention provides a phototherapeutic apparatus that can effectively achieve the skin improvement effect while lowering the manufacturing cost of the phototherapy apparatus such as a skin cosmetic mask for improving the skin.

The optical therapy apparatus of the present invention for solving the above technical problem, the light covering at least one narrow wavelength (Narrow Wavelength) light source for irradiating light of a predetermined single wavelength, and the visible light region that is not irradiated by the narrow wavelength light source It is configured to include a light wavelength (Wide Wavelength) light source for irradiating white visible light to irradiate.

Preferably, the optical filter unit for selectively transmitting only light of a predetermined wavelength range from the light irradiated from the light irradiation unit; may be configured to further include.

Preferably, the optical filter unit may be configured to selectively transmit only light in a wavelength range of 495 nm or more, and block or absorb light in a wavelength range of less than 495 nm.

Preferably, the optical filter unit may be composed of a sheet containing an optical filter material for blocking or absorbing light in a wavelength range of less than 495 nm or a sheet coated with an optical filter material for blocking or absorbing light in a wavelength range of less than 495 nm. .

Preferably, the narrow wavelength light source is configured to irradiate light of a single wavelength selected between 495 nm and 2000 nm, and the optical wavelength light source may be configured to irradiate white light in a wavelength range of 380 nm to 780 nm.

Preferably, the light wavelength light source may be configured to have a Kelvin temperature value of any one of 2800K to 5000K.

Preferably, the light wavelength light source may have a color rendering index (CRI) of 85 or more.

Preferably, the narrow wavelength light source includes: a 580 nm LED for irradiating light with a wavelength of 580 nm; 610 nm LED which irradiates light of the wavelength of 610 nm; 625 nm LED which irradiates light of the wavelength of 625 nm; 740 nm LED for irradiating light of the wavelength of 740 nm; And 840nm LED which irradiates light of wavelength of 840nm; It may be configured to include at least one.

Preferably, the narrow wavelength light source may be configured to have a full width at half maximum (FWHM) of 5 nm to 50 nm.

The present invention as described above allows the epidermal layer to be intensively treated or improved with a narrow wavelength light source while simultaneously treating or improving the entire area of the skin with a light wavelength light source. There is an advantage that the treatment or improvement of the entire skin area can be achieved across the dermis, subcutaneous and subcutaneous layers.

In addition, by replacing the expensive LED that irradiates the light of a specific wavelength with a combination of low-cost and low-cost white LED and optical filter unit, it provides the effect of improving the skin while reducing the manufacturing cost of the skin cosmetic mask. can do.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 and 2 is a perspective view showing a skin care mask according to an embodiment of the present invention.

Figure 3 is an exploded perspective view showing a skin care mask according to an embodiment of the present invention.

4 is a graph illustrating a relative spectroscopic distribution curve of the light wavelength light source of the light irradiation part according to the first embodiment of the present invention.

5 is a graph showing a relative spectroscopic distribution curve of the narrow wavelength light source of the light irradiation part according to the first embodiment of the present invention.

6 is a graph illustrating a relative spectroscopic distribution curve before and after the light wavelength light source and the narrow wavelength light source of the light irradiation part according to the first embodiment of the present invention pass through the optical filter part.

7 is a graph showing a relative spectroscopic distribution curve of the light source of the light wavelength of the light irradiation part according to the second embodiment of the present invention.

8 is a graph illustrating a relative spectroscopic distribution curve of a narrow wavelength light source of a light irradiation part according to a second exemplary embodiment of the present invention.

9 is a graph illustrating a relative spectroscopic distribution curve before and after the light wavelength light source and the narrow wavelength light source of the light irradiation part according to the second embodiment of the present invention pass through the optical filter part.

The present invention can be embodied in many different forms without departing from the spirit or main features thereof. Accordingly, the embodiments of the present invention are merely examples in all respects and should not be construed as limiting.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may be present in the middle. Should be.

On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprise", "comprise", "have", etc., are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, one Or other features or numbers, steps, operations, components, components or combinations thereof, or those in combination thereof should not be excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals regardless of the reference numerals and redundant description thereof will be omitted.

In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the present embodiment, as an example of the phototherapy apparatus, only the configuration of the skin cosmetic mask for improving the condition of the skin is described as an example, and it can be applied to the phototherapy apparatus of various configurations.

As illustrated in FIGS. 1 to 3, the skin cosmetic mask of the present embodiment includes a base part 100, a light irradiation part 200, and an optical filter part 300.

First, the base unit 100 will be described.

The base portion 100 is formed in a shape that can cover the standard face and neck of a person, specifically, the face mask 110 corresponding to the user's face and the neck mask 120 corresponding to the user's neck are integrated It consists of.

The base part 100 may have openings formed at corresponding positions so that the user's eyes, nose, mouth, and the like can be exposed to the outside when the user wears them.

On the other hand, the opening of the base portion 100 formed corresponding to the eyes of the user is integrally formed with a blocking bushing (110a) for blocking the light of the light irradiation unit 200 is irradiated to the eyes of the user.

In addition, a plurality of insertion guides 110b are integrally formed at the inner edge portion of the base portion 100 facing the face of the user so that the edge portion of the optical filter portion 300 may be inserted.

In addition, a plurality of nut bushings 110c for fastening with the optical filter part 300 are integrally formed at positions spaced apart from each other by an inner edge of the base part 100.

On the other hand, at the lower end side of the base portion 100, a power port mounting cutout 110d is formed such that a power port of the light irradiation unit 200 for supplying or charging power to the light irradiation unit 200 is located. .

Next, the light irradiation unit 200 will be described.

The light irradiation part 200 is provided inside the base part 100 to irradiate light rays toward the user's skin, and includes a flexible PCB and a plurality of light sources mounted on the flexible PCB.

Specifically, the light irradiation unit 200 is a wide wavelength light source 220 for irradiating white light in a wavelength range of 380 nm to 780 nm, and a narrow wavelength light source for irradiating light having a wavelength selected between 495 nm and 2000 nm. And 210.

The light wavelength light source 220 is composed of a white LED irradiating white light, the white LED is configured to irradiate white light in the wavelength range of 380nm to 780nm which is a visible light region.

On the other hand, the white LED may be configured to have a Kelvin temperature value of any one of 2800K to 5000K.

This is because, in the case of a white LED having a Kelvin temperature value of 5000 K or more, it has an adverse effect on the skin from the viewpoint of beauty. Specifically, a white LED having a Kelvin temperature value of 5000 K or more has a low wavelength range of light of a blue light series. This is because a lot of light, such blue light-based light penetrates deep into the skin because it acts as a cause of generating free radicals.

Free radicals destroy cell membranes and cause more melanin in the cells, which are UV and blue light-based light, which accounts for more than 50% of the production of these free radicals.

Although the light of the blue light system can be filtered by the optical filter unit 300 to be described later, since it is difficult to completely filter the light, it is preferable that the white LED itself does not contain much of the light of the blue light system. to be.

In addition, the white LED preferably has a color rendering index (CRI) of 85 or more, which is because, when the color rendering index is less than 85, the blue light series described above contains a lot of light. to be.

The white LEDs are relatively inexpensive compared to LEDs for irradiating light of a specific wavelength and are not concentrated in a specific wavelength band of irradiated light, but have a wide range of wavelength ranges of 380 nm to 780 nm.

The narrow wavelength light source 210 is configured to irradiate light of a single wavelength arbitrarily selected between 495 nm and 2000 nm, and is configured to have a full width at half maximum (FWHM) of approximately 5 nm to 50 nm for the selected single wavelength. .

For example, the relative spectral distribution curve of the LED irradiating light with a wavelength of 580 nm shows the highest light distribution at the wavelength of 580 nm, and the light distribution gradually decreases toward the periphery.

At this time, the two wavelengths of the two points indicating the light distribution corresponding to half of the 580 nm wavelength showing the highest light distribution are configured to represent approximately 575 nm, 585 nm.

That is, the half-value width of 5 nm means that the effective wavelength distribution of the LED of 580 nm wavelength has a range of approximately 575 nm to 585 nm, and the half-width of 10 nm means that the effective wavelength distribution of the LED of 580 nm wavelength has a range of approximately 570 nm to 590 nm. It can be understood as meaning.

Meanwhile, the narrow wavelength light source 210 is configured to irradiate light of a single wavelength arbitrarily selected between 495 nm and 2000 nm, and emits light having any single wavelength selected from among the wavelengths defined by Equation 1 below. It is preferably configured to investigate.

[Equation 1]

λ = 5 × n (λ is the wavelength, n is the natural number between 99 and 400)

That is, the narrow wavelength light source 210 is 495nm, 500nm, 505nm,... , To irradiate light having a wavelength selected from among wavelengths of 1995 nm and 2000 nm.

On the other hand, if the narrow wavelength light source 210 is composed of a plurality of LEDs, it is preferable that the wavelength of each LED is configured differently.

For example, as shown in FIG. 5, the narrow wavelength light source 210 may include a 650 nm LED that emits light having a wavelength of 650 nm and a 750 nm LED that emits light having a wavelength of 750 nm.

Here, the 650nm LED and 750nm LED may be installed in the form provided in each different LED module.

That is, the small square shape mounted in the light irradiation unit shown in Figure 3 is one LED module, 650nm LED is configured in one LED module, 750nm LED is configured in any one LED module, two LEDs Can be evenly distributed.

In addition, the light wavelength light source 220, the narrow wavelength light source 210, 650nm LED, 750nm LED can be configured in one LED module, of course.

The narrow wavelength light source 210 of each wavelength penetrates into the skin at different depths, and the effect by each light source is as follows.

First, the 650nm LED, which irradiates light with a wavelength of 650nm, is an LED that irradiates roughly reddish red light. It penetrates deep areas of dermal dermal tissue, helps collagen production, and has elasticity and regeneration of skin. Active sebaceous glands Useful for the treatment of inflammation and wounds, and can also be used for the treatment of hair loss.

Next, the 650 nm LED for irradiating light with a wavelength of 750 nm is an LED for irradiating near infrared light, which is deeply irradiated to the skin subcutaneously, and has an effect of preventing skin pigmentation and promoting regeneration.

As another example, the narrow wavelength light source 210, as shown in Figure 8, 580nm LED for irradiating light of the wavelength of 580nm, 610nm LED for irradiating light of the wavelength of 610nm, light of the wavelength of 625nm It may be configured to include a 625nm LED, 740nm LED for irradiating light of the wavelength of 740nm and 840nm LED for irradiating light of the wavelength of 840nm.

Effects of the narrow wavelength light source 210 of each wavelength are as follows.

First, the 580nm LED, which irradiates light with a wavelength of 580nm, suppresses melanin production and improves blemishes and freckles, and reduces blood redness and inflammation that causes wrinkles.

Next, the 610nm LED irradiating light with a wavelength of 610nm penetrates into a deeper region than the 580nm LED, and has an effect similar to that of the 580nm LED.

Next, the 625nm LED, which irradiates light with a wavelength of 625nm, is a ray that penetrates into the dermal tissue, has the effect of helping to produce collagen, elasticity and regeneration of the skin, and active sebaceous glands deep in the skin. Inflammation and wound treatment This is useful for treating hair loss.

Next, the 740nm LED which irradiates light of the wavelength of 740nm penetrates into the skin between the 625nm LED and the 840nm LED, and has an effect similar to that of the 625nm LED and the 840nm LED.

Next, the 840 nm LED which irradiates light of the wavelength of 840 nm is irradiated deeply to 4 mm of skin, and has an effect which prevents skin pigmentation and promotes regeneration.

The optical filter unit 300 blocks the light in the wavelength range of less than 495nm from the light irradiated from the light irradiation unit 200, and filters to transmit the light in the wavelength range of 495nm or more, PC, PP, PCABS, It may be configured in the form of a sheet made of synthetic resin such as ABS.

Specifically, the optical filter unit 300 is formed of a sheet having a shape that can cover the standard face and neck of a person so as to be similar to the shape of the base unit 100, and is provided inside the base unit 100 It is assembled inside the base part 100 in a state spaced apart from the light irradiation unit 200.

On the other hand, the optical filter unit 300 is configured to contain an optical filter material for blocking or absorbing light in the wavelength range of less than 495nm in the interior of the sheet, or the optical filter material is configured to be applied in the form of a liquid or film on one side Can be.

In addition, after coating the optical filter material on a separate film or plate of 50 ~ 6,000um thickness made of a material such as (PET, PC, PI, PEN, PMMA, etc.) is mounted on the inner surface of the base portion 100 As long as the structure that can filter the light irradiated from the light irradiation unit 200, such as a structure provided on the light irradiation unit 200 side, a structure that is coated on the light source itself of the light irradiation unit 200, it is of course possible to adopt and apply. .

The optical filter material may include at least one material of chromium, aluminum, titanium dioxide (TiO ₂ ), zinc oxide, magnesium silicate, magnesium oxide, and kaolin, and the particle size of the material is 10 nm to 10 nm. It can be formed at 500nm.

For example, 2 to 5 parts by weight of the titanium dioxide (TiO ₂ ), it may be applied as an optical filter material to be mixed and used in a ratio of 95 to 98 parts by weight of a transparent paint such as epoxy, acrylic resin, urethane resin, and less than 495nm It can block approximately 90% of light in the wavelength range.

Like the base unit 100, the optical filter unit 300 may have openings formed at corresponding positions to expose the eyes, nose, mouth, etc. of the user to the outside when the user wears the base unit ( The filter bushing 300a is integrally formed along the outer circumference of the blocking bushing 110a of the 100.

On the opposite side of the optical filter unit 300 on the opposite side where the filter bushing 300a is formed, a spaced bushing 300b is integrally formed to maintain a spaced state from the light irradiation unit 200, and the spaced bushing 300b ) Is supported on the inner surface of the base portion 100 to maintain a state spaced apart from the light irradiation unit 200.

Meanwhile, an edge portion of the optical filter unit 300 corresponding to the plurality of insertion guides 110b of the base unit 100 is configured to be bent toward the mask and bent edges of the optical filter unit 300. The part may be inserted into the plurality of insertion guides 110b and assembled.

In addition, at the corresponding position of the optical filter 300 corresponding to the nut bushing (110c) of the base portion 100, a stepped hole (300c) that can be supported by the head of the bolt is formed, the stepped hole ( The base part 100 and the optical filter part 300 may be firmly assembled to each other as the bolt is fastened to the nut bushing 110c by being inserted into the 300c.

In addition, a power port mounting dome 300d is formed at a corresponding portion of the optical filter unit 300 corresponding to the power port mounting cutout 110d of the base unit 100.

On the other hand, at both ends of the optical filter unit 300, a binding unit 300e is formed in which a mounting band for mounting the skin cosmetic mask on the face is bound.

Hereinafter, as described above, the light irradiation relationship of the skin cosmetic mask including the base unit 100, the light irradiation unit 200, and the optical filter unit 300 will be described.

In the skin cosmetic mask of the first embodiment, the light wavelength light source 220 of the light irradiation unit 200 is composed of a white LED that emits white light of 380nm to 780nm wavelength while having a color temperature of 5000K, the narrow wavelength light source 210 ) Is composed of a 650 nm LED for irradiating light of 650 nm wavelength and a 750 nm LED for irradiating light of 750 nm wavelength.

FIG. 4 is a graph illustrating a relative spectroscopic distribution curve of the light wavelength light source 220 of the light irradiation part 200 of the skin cosmetic mask according to the first embodiment, wherein the white LED is approximately 380 nm as shown in FIG. 4. Light distribution is shown throughout the wavelength range from 780 nm to 780 nm.

FIG. 5 is a graph showing a relative spectroscopic distribution curve of the narrow wavelength light source 210 of the light irradiation part 200 of the skin cosmetic mask according to the first embodiment, wherein the wavelength portion of the 650 nm LED and the 750 nm LED is 650 nm and 750 nm. It shows that light distribution is concentrated.

6 (a) shows the relative before passing through the optical filter unit 300 immediately after the light wavelength light source 220 and the narrow wavelength light source 210 of the light irradiation unit 200 of the skin cosmetic mask according to the first embodiment is irradiated. As a graph showing a spectral distribution curve, the white LED shows light distribution over the wavelength range of approximately 380 nm to 780 nm, and at the same time, the light distribution overlaps the wavelength portion of 650 nm LED and 750 nm by the 650 nm LED and 750 nm LED. It can be seen that the concentration is more concentrated and the peak value is shown.

Therefore, the light irradiated from the light irradiation unit 200 of the skin cosmetic mask according to the first embodiment passes through the optical filter unit 300, and light in the wavelength range of less than 495 nm is blocked, and light in the wavelength range of 495 nm or more is As it penetrates, only 495 nm or more of light is irradiated to the user's skin.

FIG. 7B illustrates a relative spectroscopic distribution curve after the light wavelength light source 220 and the narrow wavelength light source 210 of the light irradiation part 200 of the skin cosmetic mask according to the first embodiment pass through the optical filter part 300. As a graph showing, the light is blocked in the wavelength range of less than 495nm among the 380nm to 780nm wavelength range light irradiated from the white LED, and consequently, filtered by the optical filter unit 300 after being irradiated from the white LED While showing the light distribution of 495 nm to 780 nm wavelength, the light distribution overlaps the wavelength portion of the 650 nm LED and the 750 nm by the 650 nm LED and the 750 nm LED, and it is confirmed that the peak value is more concentrated.

As the light showing the light distribution as described above is irradiated to the skin, the light irradiated by the light wavelength light source 220 can be irradiated over the entire area by the depth of the skin, evenly improving the entire area by the depth of the skin In addition, the narrow wavelength light source 210 enables intensive improvement of a specific area of the skin.

In the skin cosmetic mask of the second embodiment, the light wavelength light source 220 of the light irradiation unit 200 is composed of a white LED that emits white light of 380nm to 780nm wavelength and has a color temperature of 5000K, the narrow wavelength light source 210 ) Is 580nm LED which irradiates light of 580nm wavelength, 610nm LED which irradiates light of 610nm wavelength, 625nm LED which irradiates light of 625nm wavelength, 740nm LED which irradiates light of 740nm wavelength, and 840nm wavelength It consists of a 840nm LED that emits light.

FIG. 7 is a graph illustrating a relative spectroscopic distribution curve of the light wavelength light source 220 of the light irradiation part 200 of the skin cosmetic mask according to the second embodiment, wherein the white LED is approximately 380 nm as shown in FIG. 7. Light distribution is shown throughout the wavelength range from 780 nm to 780 nm.

FIG. 8 is a graph illustrating a relative spectroscopic distribution curve of the narrow wavelength light source 210 of the light irradiation part 200 of the skin cosmetic mask according to the second embodiment, and includes a 590 nm LED, a 610 nm LED, a 650 nm LED, a 750 nm LED, and a 850 nm LED. It is shown that the light distribution is concentrated in the wavelength portion of 590 nm, 610 nm, 650 nm, 750 nm and 850 nm.

9 (a) shows a relative before passing through the optical filter unit 300 immediately after the light wavelength light source 220 and the narrow wavelength light source 210 of the light irradiation unit 200 of the skin cosmetic mask according to the second embodiment are irradiated. A graph showing the spectral distribution curve, wherein the white LED shows the light distribution over the wavelength range of approximately 380 nm to 780 nm, and at the same time, the 590 nm, 610 nm, 750 nm, 850 nm, 590 nm, 610 nm, It can be seen that the light distribution overlaps the wavelength portion of 650 nm, 750 nm, and 850 nm to show a more concentrated peak value.

Therefore, the light irradiated from the light irradiation unit 200 of the skin cosmetic mask according to the second embodiment passes through the optical filter unit 300, and light in a wavelength range of less than 495 nm is blocked, and light in a wavelength range of 495 nm or more is As it penetrates, only 495 nm or more of light is irradiated to the user's skin.

7B illustrates a relative spectra distribution curve after the light wavelength light source 220 and the narrow wavelength light source 210 of the light irradiation part 200 and the narrow wavelength light source 210 of the skin cosmetic mask according to the second embodiment pass through the optical filter part 300. As a graph showing, the light is blocked in the wavelength range of less than 495nm among the 380nm to 780nm wavelength range light irradiated from the white LED, and consequently, filtered by the optical filter unit 300 after being irradiated from the white LED While the light distribution of 495nm to 780nm wavelength is shown, the light distribution overlaps the wavelength portion of 590nm, 610nm, 650nm, 750nm and 850nm by the 590nm LED, 610nm LED, 650nm LED, 750nm LED and 850nm LED. It can be confirmed that the peak value is shown.

As the light showing the light distribution as described above is irradiated to the skin, the light irradiated by the light wavelength light source 220 can be irradiated over the entire area by the depth of the skin, evenly improving the entire area by the depth of the skin In addition, the narrow wavelength light source 210 enables intensive improvement of a specific area of the skin.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various and obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (10)

Wide Wavelength (Nide Wavelength) light source for irradiating light of a predetermined single wavelength, and Wide Wavelength for irradiating white visible light to irradiate light covering the visible light region not irradiated by the narrow wavelength light source (Wide Wavelength) Light treatment unit configured to include a light source; The method of claim 1, And a light filter unit selectively transmitting only light having a predetermined wavelength range among the light irradiated from the light irradiation unit. The method of claim 2, And the optical filter unit selectively transmits only light in a wavelength range of 495 nm or more, and blocks or absorbs light in a wavelength range of less than 495 nm. The method of claim 3, The optical filter unit, A phototherapy device comprising a sheet containing an optical filter material for blocking or absorbing light in a wavelength range of less than 495 nm or a sheet coated with an optical filter material for blocking or absorbing light in a wavelength range of less than 495 nm. The method of claim 4, wherein The optical filter material, at least any one of chromium, aluminum, titanium dioxide (TiO ₂ ), zinc oxide, magnesium silicate, magnesium oxide, kaolin (kaolin). The method of claim 1, And the narrow wavelength light source is configured to irradiate light of a single wavelength selected between 495 nm and 2000 nm, and the optical wavelength light source is configured to irradiate white light in a wavelength range of 380 nm to 780 nm. The method of claim 6, The light wavelength light source, Phototherapy device, characterized in that configured to have a Kelvin temperature value of any one of 2800K to 5000K. The method of claim 6, The light wavelength light source, Phototherapy device characterized in that the color rendering index (CRI) is composed of 85 or more. The method of claim 1, Narrow wavelength light source, 580 nm LED which irradiates light of wavelength of 580 nm; 610 nm LED which irradiates light of the wavelength of 610 nm; 625 nm LED which irradiates light of the wavelength of 625 nm; 740 nm LED for irradiating light of the wavelength of 740 nm; And 840nm LED which irradiates light of wavelength of 840nm; Phototherapy device, characterized in that configured to include at least any one. The method of claim 1, Narrow wavelength light source, The phototherapy device, characterized in that configured to have a full width at half maximum (FWHM) of 5nm to 50nm.

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