KR102423763B1 - Optical mask and manufacturing method of optical mask - Google Patents

Abstract

A light (LED, LD and laser) mask according to an example of the present invention is disclosed. The light (LED, LD, and laser) mask may include a mask formed to cover the user's face; a light source unit disposed on one side of the mask to irradiate light; and a light guide diffusion plate guiding light to be irradiated toward the user's face and having a size corresponding to the mask, wherein a plurality of groove portions are formed in the light guide diffusion plate, and one side surface on which the light source portion is disposed It is characterized in that the number of the formed grooves increases as the distance from it increases.

Description

A photomask and the manufacturing method of a photomask TECHNICAL FIELD

The present invention relates to a photomask and a method for manufacturing the photomask. More particularly, the present invention relates to a photomask including a light guide diffusion plate having a plurality of grooves formed therein so that light emitted from a light source unit can be uniformly or distributed with a desired intensity, and a method for manufacturing the same.

Recently, as skin care using LED, LD, and laser light sources irradiating visible or near-infrared light has become a trend, it is growing into a large market in the cosmetic industry and skin care industry. Unlike high-power lasers, these various light sources can be irradiated to diseased areas over a large area with appropriate light output. By irradiating the LED light source, it promotes the basic energy metabolism of mitochondria in the cell and induces a photo-biochemical reaction between skin cells.

In the case of the cosmetics industry, various anti-aging-related cosmetics using LED, LD, and laser light sources are being released, and the skin care industry is providing various anti-aging-related skin care services. Recently, with regard to skin care devices, products that can manage skin or scalp more easily and conveniently using light source elements such as LEDs that output wavelengths in the visible ray region or LEDs and LD elements that output wavelengths in the near infrared region have been released. is becoming

However, in the case of the conventional mask, there was a problem in that side effects occur due to manufacturing cost and heat due to the use of a plurality of LEDs to implement a uniform or desired light distribution over the entire mask. Therefore, there is a need for a light mask that uses a small number or a single LED, LD, or laser light source and can uniformly distribute light or desired light distribution on the user's face.

Registered Patent 10-1413646

An object of the present invention is to provide a light mask capable of uniformly irradiating or distributing light to a user's face as a whole.

The problems to be solved by the present invention are not limited to the problems mentioned above. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention pertains from the following description.

A photo mask according to an example of the present invention is disclosed.

A photomask according to the present invention includes a mask formed to cover a user's face; a light source unit disposed on one side of the mask to irradiate light; and a light guide diffusion plate guiding light to be irradiated toward the user's face and having a size corresponding to the mask, wherein a plurality of groove portions are formed in the light guide diffusion plate, and one side surface on which the light source portion is disposed The number of the formed grooves may be greater in order to achieve a desired light intensity as the distance increases from the .

According to an example, the number of the formed grooves increases as the distance from one side on which the light source unit is disposed in a first direction increases, and the first direction is a direction perpendicular to one side on which the light source unit is disposed. can

According to an example, the plurality of grooves may be formed to be spaced apart by a predetermined interval in the first direction.

According to an example, the plurality of grooves may be formed to be spaced apart from each other by a predetermined interval on an imaginary line forming 45 degrees left and right in the first direction.

According to an example, the plurality of grooves may have the same width and the same depth.

According to an example, the optical sheet disposed between the light guide diffusion plate and the mask; may further include.

According to one example, a method of manufacturing the LED mask is disclosed.

The method of manufacturing the photomask may include processing a plurality of grooves using a pulse laser.

According to the present invention, there is an effect that light can be emitted to have a uniform or desired distribution over the entire surface of the mask.

According to the present invention, there is an economic advantage through the reduction of the number of light sources (LD, LED, and laser).

According to the present invention, there is an effect that can improve problems such as skin damage or burns due to heat.

The effects of the present invention are not limited to the effects described above. Effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention pertains from this specification and the accompanying drawings.

1 is a perspective view for explaining the components of a light (LED, LD, or laser) mask according to the present invention.
Figure 2 is a side view of a light (LED, LD and laser) mask with all components combined in accordance with the present invention;
3 is a view for explaining a pattern of a groove formed in a light guide diffusion plate according to an embodiment of the present invention.
4 to 5 are views for explaining a pattern of a groove formed in a light guide diffusion plate according to another embodiment of the present invention.
6 is a view for explaining the formation of a groove according to the present invention.
7 is a view for explaining that light is emitted from the light source unit and reflected in the groove according to the present invention.

Other advantages and features of the present invention, and a method of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and the present invention is only defined by the scope of the claims. Unless defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by common skill in the prior art to which this invention belongs. A general description of known configurations may be omitted so as not to obscure the gist of the present invention. In the drawings of the present invention, the same reference numerals are used as much as possible for the same or corresponding components. In order to help the understanding of the present invention, some components in the drawings may be shown exaggerated or reduced to some extent.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise”, “have” or “have” are intended to designate that a feature, number, step, action, component, part, or combination thereof described in the specification is present, but one It should be understood that it does not preclude the possibility of the presence or addition of or more other features or numbers, steps, operations, components, parts, or combinations thereof.

In the case of the photomask according to the present invention, it is possible to uniformly emit light to the face of a user wearing a light (LED, LD, and laser) mask by using a light guide diffusion plate having a plurality of grooves irregularly formed on the surface. . According to an example, in the photomask according to the present invention, the light may be any one of LED, LD, and laser. According to the present invention, light emitted from the light source unit disposed on one side of the light guide plate is incident on the light guide plate. There is an effect that the light guide plate can emit light uniformly by a groove formed by using a pulse laser. The plurality of grooves formed in the light guide diffusion plate according to the present invention may be arranged according to a set of rules. The plurality of grooves formed in the light guide diffuser plate has a small number of grooves arranged in a portion close to the light source, and the number of grooves in a portion farther from the light source is greater than the number of grooves arranged in a portion close to the light source, Regardless of the distance from the light source, there is an effect that uniform light emission is possible on the front part of the face of the user wearing the mask. In addition, it is apparent that a desired light distribution can be obtained according to the number and arrangement of the grooves. When the light guide diffusion plate according to the present invention is manufactured, the groove portion may be processed by using a pulse laser in order to improve the occurrence of pattern burrs and carbonization.

Hereinafter, an embodiment of the light (LED, LD and laser) mask 1 according to the present invention will be described with reference to the drawings.

1 is a perspective view for explaining the components of a light (LED, LD, and laser) mask 1 according to the present invention.

The light (LED, LD, and laser) mask 1 according to the present invention may include a mask 10 , a light source unit 20 , an optical sheet 30 , and a light guide diffusion plate 40 .

The mask 10 may be sized to cover the user's face. The mask 10 may be formed in a shape corresponding to the user's face. The mask 10 may be formed to correspond to an average face size of a general user. The mask 10 may be made of a plastic material. The mask 10 may have a curved surface to match the face. In the mask 10 , one or more holes may be formed at positions corresponding to the eyes, nose, mouth, ears, and the like.

The light source unit 20 may include an LED, an LD, and a laser. The light source unit 20 may include a single or a plurality of LEDs, LDs, and lasers. A plurality of light sources (LED, LD, and laser) included in the light source unit 20 may be arranged in a line on one side of the light guide plate 40 . In addition, it may be provided in the same form as a line beam disposed in a line on one side of the light guide diffusion plate. According to the example of FIG. 1 , the light source unit 20 may be formed and disposed to have a length corresponding to the left side of the light guide diffusion plate 40 . However, FIG. 1 is only an example, and the light source unit 20 may be disposed on either the right side, the upper side, or the lower side of the light guide diffusion plate 40 . The light source unit 20 may radiate light toward the light guide diffusion plate 40 .

LEDs, LDs, and lasers included in the light source unit 20 may emit light sources of specific wavelengths. Light (LED, LD, and laser) emits light in the required wavelength band, so harmful ultraviolet (UV) or unnecessary infrared (IR) is not emitted, so there are few side effects. It has the advantage of less possibility of damage to the In addition, light sources (LED, LD, and laser) are environmentally friendly because of their long operating life and low power consumption.

The optical sheet 30 may be disposed between the light guide diffusion plate 40 and the mask 10 .

The light guide diffusion plate 40 may irradiate the light applied from the light source unit 20 to the face of a user wearing a light (LED, LD, and laser) mask. The light guide diffusion plate 40 may be formed of various materials used for light guide. The light guide diffusion plate 40 may be formed to have the same overall thickness.

The light guide plate 40 may include a plurality of grooves 41 formed on the surface of the user's face so that the light applied from the light source unit 20 can be uniformly or irradiated with a desired light distribution. The plurality of grooves 41 may be formed on a surface in contact with the optical sheet. A plurality of grooves formed in the light guide diffusion plate 40 may be formed by a pulse laser. A plurality of grooves formed in the light guide diffusion plate 40 may be irregularly formed. The number of the plurality of grooves formed in the light guide diffusion plate 40 may increase as the distance from the position where the light source unit 20 is disposed increases. The pattern in which the plurality of grooves are formed will be described in detail with reference to FIGS. 3 to 5 .

2 is a side view of a light (LED, LD and laser) mask 1 with all components combined according to the present invention.

As shown in FIG. 1 , the optical sheet 30 and the light guide plate 40 are disclosed in the form of a rectangular parallelepiped plate, but this is illustrated in the form of a plate for better understanding, and in the actual embodiment As in 2, it may be provided in a curved shape corresponding to the shape of the face. In addition, as shown in FIG. 1 , it is shown that holes corresponding to the mask 10 are not formed in the optical sheet 30 and the light guide diffusion plate 40 , but this is also shown so as to help understanding and actual implementation In an example, a hole may be formed at a position corresponding to the hole formed in the mask 10 . Also, the hole formed in the light guide diffusion plate 40 may be formed at a position that does not interfere with the groove formed in the light guide diffusion plate 40 .

According to the present invention, the light source unit 20 may be disposed on one side of the light guide diffusion plate 40 . According to the exemplary embodiment of FIG. 2 , the light source unit 20 is disposed on the upper side surface of the light guide plate 40 . The light incident on the light guide diffusion plate 40 through the light source unit 20 may be emitted to the front of the user's face through the groove portion 41 formed in the light guide diffusion plate 40 .

3 is a view for explaining the pattern of the groove portion 41 formed in the light guide diffusion plate 40 according to an embodiment of the present invention.

3 to 5 show an example in which the light source unit 20 is disposed on the upper side surface of the light guide plate 40 . For a smooth description, a direction perpendicular to the side surface on which the light source unit 20 is disposed is referred to as a first direction. A direction perpendicular to the first direction is referred to as a second direction.

According to an example of FIG. 3 , a plurality of grooves 41 are formed in the light guide diffusion plate 40 . The plurality of grooves 41 formed in the light guide diffusion plate 40 may be disposed to have a greater number as the distance from the light source unit 20 in the first direction increases. According to an example of FIG. 3 , the plurality of grooves 41 may be spaced apart from each other by a predetermined interval in the first direction to arrange the grooves 41 .

According to an example of FIG. 3 , it can be seen that the number of the grooves 41 gradually increases as it proceeds in the first direction. The grooves arranged in a line in the second direction at the closest distance to the light source 20 are referred to as first-row grooves for convenience. The grooves arranged in a line in the second direction at the second closest distance to the light source 20 are referred to as two-row grooves for convenience. According to this method, the light guide diffusion plate 40 of FIG. 3 includes the grooves in the first row to the grooves in the fourth row.

The number of grooves disposed in the first row groove portion is 4, and the number of grooves disposed in the second row groove portion is 5. The number of grooves disposed in the third-row grooves is 7, and the number of grooves disposed in the fourth-row grooves is 8. That is, when comparing the number of grooves disposed at positions separated by a predetermined distance based on the vertical straight line distance from the light source unit 20 , the vertical straight line distance from the light source unit 20 disposed on one side of the light guide diffusion plate 40 is far It can be seen that the number of grooves included increases as the number of grooves increases.

4 to 5 are views for explaining a pattern of a groove formed in a light guide diffusion plate according to another embodiment of the present invention.

According to an example of FIG. 4 , the plurality of grooves 41 may be disposed to have a greater number as they move away from the light source unit 20 with respect to 45 degrees left and right in the first direction.

According to one example, based on the light source (LED, LD, and laser) disposed at the most central among the plurality of light sources (LED, LD, and laser) included in the light source unit 20, as the vertical straight distance increases, the The number may be further increased. 45 degrees left and right in the first direction are arbitrarily set, and the angle may be changed according to the aspect ratio of the light guide diffusion plate.

4, a hole formed at a position corresponding to the mask 10 that may be generated by having a larger number as the distance from the light source unit 20 increases with respect to the left and right n degrees in the first direction, as in the embodiment of FIG. interference can be avoided. That is, interference with a hole formed at a position corresponding to the mask 10 can be avoided by adjusting the left and right angles based on the first direction.

According to an example of FIG. 5 , the light sources 20 may be disposed at positions opposite to each other. A plurality of light sources (LED, LD, and laser) included in the light source unit 20 may be divided and disposed on one side facing each other. According to one example, when the light source unit 20 is divided on both side surfaces, the grooves formed from the light source unit to the center center on the basis of the central portion of the side surface on which the light source unit 20 are respectively arranged are formed to increase in the first direction. can do.

In the case of the embodiment of FIG. 5 , the number of light sources (LED, LD, or laser) included in the light source unit 20 is the number of light sources (LED, LD, or laser) included in the light source unit 20 in the embodiment of FIGS. 3 to 4 . may be equal to the number of Also, in addition to the case of using a plurality of light sources, a line beam having a uniform distribution in the longitudinal direction may be used. Through this, the effect of cost reduction may be the same in the embodiment of FIG. 5 .

In the case of the embodiment shown in FIG. 5 , by disposing the light source unit 20 on both side surfaces, more dense light irradiation is possible compared to FIGS. 3 to 4 .

The plurality of grooves disclosed in the embodiments of FIGS. 3 to 5 may all be formed to have the same width and the same depth. A technical feature of the present invention is that light can be uniformly emitted to the front portion of the light guide diffusion plate by changing the arrangement of a plurality of grooves having the same width and the same depth.

6 is a view for explaining the formation of a groove according to the present invention.

In the light (LED, LD, and laser) mask according to the present invention, the groove portion 41 may be formed by using a pulse laser to produce a pattern having high efficiency. It may also be possible to change the density of the grooves formed using a pulsed laser. Through this, there is an effect that uniform light or light having a desired distribution can be emitted to the entire surface of the light guide diffusion plate.

7 is a view for explaining that light is emitted from the light source unit 20 and is reflected in the groove according to the present invention. According to an example of FIG. 7 , the light source unit 20 is disposed on one side of the light guide plate 40 and radiates light toward the light guide plate 40 . The light incident on the light guide plate 40 through the light source unit 20 may be reflected by the groove part 41 of the light guide plate 40 formed through the pulse laser and emitted toward the user's face. Since the intensity of the light emitted from the light source unit 20 increases as the distance increases, the number of grooves formed close to the light source unit 20 is relatively small, and the number of grooves formed far from the light source unit 20 is reduced. There is an effect of securing a uniform output of the overall light by processing the groove in the light guide diffusion plate 40 so that the number is relatively large, and it is disposed on one side compared to the previous light (LED, LD, and laser) mask. Since it is used only through the light (LED, LD, and laser), there is an effect of more cost saving and the effect of preventing side effects due to heat generated by consumption when multiple light sources are used.

The above detailed description is illustrative of the present invention. In addition, the foregoing is intended to indicate preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications are possible within the scope of the concept of the invention disclosed herein, the scope equivalent to the written disclosure, and/or within the scope of skill or knowledge in the art. The written embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in specific application fields and uses of the present invention are possible. Accordingly, the detailed description of the present invention is not intended to limit the present invention to the disclosed embodiments. Also, the appended claims should be construed as including other embodiments.

1: light (LED, LD and laser) mask
10 : mask
20: light source unit
30: optical sheet
40: light guide diffusion plate
41: home

Claims (7)

a mask formed to cover the user's face;
a light source unit disposed on one side of the mask to irradiate light; and
and a light guide diffusion plate guiding light to be irradiated toward the user's face and having a size corresponding to the mask;
A plurality of grooves are formed in the light guide diffusion plate,
The photomask according to claim 1, wherein the number of the formed grooves increases as the distance from the one side on which the light source is disposed increases.
According to claim 1,
In the light guide diffusion plate, the number of the formed grooves increases as the distance from one side on which the light source unit is disposed in the first direction increases,
The first direction is a direction perpendicular to a side surface on which the light source unit is disposed.
3. The method of claim 2,
The plurality of grooves are formed to be spaced apart from each other by a predetermined interval in the first direction.
3. The method of claim 2,
The plurality of grooves are formed to be spaced apart from each other by a predetermined interval on an imaginary line forming 45 degrees left and right in the first direction.
5. The method of claim 3 or 4,
The plurality of grooves have the same width and the same depth.
6. The method of claim 5,
and an optical sheet disposed between the light guide diffusion plate and the mask.
In the method of manufacturing the photomask according to any one of claims 1 to 4,
The method of manufacturing a photomask wherein the plurality of grooves are processed through a pulse laser.

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