KR20040092308A - polarized light sun glass lenses and multi-coating method therein - Google Patents

Abstract

PURPOSE: A polarizing sunglass lens and a multi-coating method thereof are provided to improve visibility by shielding unnecessary natural light, ultraviolet rays, and retroreflected light. CONSTITUTION: A polarizing sunglass lens includes a polarizing film(1) and a coating layer(C). The coating layer is formed by coating one or more elements from a group including silicon dioxide, zirconium dioxide, and aluminum oxide on one side or both sides of the polarizing film. The polarizing sunglass lens includes a special acryl layer(3,30), a hard coating layer(4,40), and an iron coating layer(5,50). The special acryl layer is formed between the coating layer and the polarizing film. The hard coating layer is coated on an outer surface of the special acryl layer. The iron coating layer is coated on an outer surface of the hard coating layer.

Description

Polarized sunglass lenses and their multi-coating methods {polarized light sun glass lenses and multi-coating method therein}

The present invention relates to a polarized sunglass lens and a multi-coating method thereof, and more particularly, to a polarized light that can alleviate eye fatigue due to harmful waves such as natural ultraviolet rays and diffuse reflections, which have improved anti-reflective effect and clarity than conventional polarized sunglass lenses. A sunglass lens and a multi-coating method used therefor.

In the present invention, the outer surface refers to the atmospheric side of the film formed by coating or bonding upon coating or adhesion.

In the present invention, the lens means the polarizing film itself, or when a predetermined film is formed on the polarizing film, the polarizing film and the predetermined film.

In the present invention, the special acryl refers to an acryl made of acryl, especially an acrylic of 0.8T so that there is no surface bending.

The method of the material or coating used in the hard coating in the present invention is used in the meaning of terms generally known to those skilled in the art, except in the case of special limitation.

The method of coating used for iron coating in the present invention is to be used in the meaning of terms generally known to those skilled in the art, except where specifically limited.

In the present invention, the method of the material or the coating used to form the water film is used in the meaning generally known to those skilled in the art, except for a specially limited case.

In the present invention, the multi-coating means a method of coating a single layer or a multilayer through a vacuum deposition method using a predetermined material on the outer surface of the polarizing film or the predetermined film formed on the polarizing film.

Generally, sunglass is a protective lens for blocking light having harmful wavelengths by reflection or normal absorption to remove harmful or unnecessary natural light, ultraviolet light, etc., and also to satisfy cosmetic needs.

Conventionally polarizing lenses have been used as lenses of such sunglasses, and conventional polarizing sunglass lenses are generally formed by attaching only polarizing films.

Although the sunglass lens using only the polarizing film has an effect of blocking unnecessary light rays, there is a problem in that the effect of shielding the reflection of sunglass is inferior.

Accordingly, there has been a demand for sunglasses which can solve unnecessary problems of the conventional polarized sunglass lens to shield unnecessary natural light, ultraviolet rays, and reflected light, and improve the sharpness.

Meanwhile, conventional glasses have been coated by a predetermined method, for example, vacuum deposition, that is, coating a chemical film in a non-vacuum state by burning a chemical to form a deposition film. There was a problem that the polarizing film discolored by heat in the process.

Therefore, when multi-coating the polarizing film of the sunglass lens, a multi-coating method that can shield ultraviolet rays or reflected light without problems such as discoloration has been studied.

Therefore, the present invention has been made to solve the above problems,

An object of the present invention is to provide a polarized sunglass lens that can simultaneously shield unnecessary natural light, ultraviolet rays, and reflected light, and improves clarity.

It is also an object of the present invention to provide a multi-coating method in which discoloration or the like does not occur in the deposition process in the manufacture of polarized sunglass lenses.

The object of the present invention as described above, in the polarizing sunglass lens, the polarizing film (1); And a coating film (C) formed by coating at least one selected from the group consisting of silicon dioxide, silicon dioxide and aluminum oxide on one side or both sides of the polarizing film (1). Is achieved by M).

And the polarizing sunglass lens (M), between the coating film (C) and the polarizing film (1), a special acrylic film (3, 30) bonded on one side or both sides of the polarizing film (1); A hard coating film (4, 40) coated on the outer surface of the special acrylic film (3, 30); And iron coating films 5 and 50 coated on the outer surfaces of the hard coating films 4 and 40, wherein the special acrylic films 3 and 30 are U.V. It is preferable that the adhesive film is adhered by the adhesives 2 and 20, and the polarizing sunglass lens M preferably further forms the water films 11 and 110 on the outer surface of the coating film C.

Another object of the present invention as described above, in the coating method of the polarizing sunglass lens, vacuum deposition on the lens at least one or more selected from the group consisting of silicon dioxide, silicon dioxide and aluminum oxide, the vacuum deposition on the lens It is achieved by a multi-coating method by continuously rotating the so that the surface temperature is 70 ~ 110 ℃.

In this case, the polarizing sunglass lens coating method, it is preferable to form at least one film selected from the group consisting of a special acrylic film, a hard coating film and an ion coating film on the lens.

1 is a schematic cross-sectional view showing the configuration of a polarizing sunglass lens according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating sunglass glasses to which a polarized sunglass lens is applied according to an embodiment of the present invention. FIG.

* Short description of drawing symbols *

1: polarizing film 2: one side U.V adhesive

3: one side acrylic 4: one side hard coating film

5: one side iron coating film 6: one side silicon dioxide coating film

7: one side first nitric oxide coating film 8: one side aluminum oxide coating film

9: one side second silicon dioxide coating film 10: one side second silicon dioxide coating film

11: One side film 20: The other side U.V adhesive

30: other acrylic 40: other hard coating film

50: other iron coating film 60: the other side first silicon dioxide coating film

70: other side 1st nitrous oxide coating film 80: other side aluminum oxide coating film

90: the other side second silicon dioxide coating film 100: the other side second silicon dioxide coating film

110: other side film C: coating film

M: Polarized Sunglass G: Polarized Sunglass

Hereinafter, the polarizing sunglass lens according to the present invention will be described in detail.

The polarizing sunglass lens according to the present invention, unlike the conventional polarizing sunglass lens, is based on forming a predetermined coating film as described on a polarizing sunglass lens, that is, a lens by a polarizing film itself or a lens on which a predetermined film is formed on the polarizing film. In addition, the multi-coating method according to the present invention, to form a predetermined coating film on the polarizing sunglass lens, that is, the lens by the polarizing film itself or the lens on which the predetermined film is formed on the polarizing film without discoloration, to apply the following predetermined method It is.

That is, the polarizing sunglass lens of the present invention is produced by forming a predetermined coating film on the polarizing film itself, or at least one selected from the group consisting of, for example, an acrylic film, especially a special acrylic film, a hard coating film, and an iron coating film on the polarizing film itself. When a predetermined coating film is formed on the outer surface where the film is formed, as shown in the following examples, when the special acrylic film, the hard coating film, and the iron coating film are sequentially formed on one side or both sides of the polarizing film, the predetermined outer surface is formed. It is preferable to form and manufacture a coating film in consideration of reflection blocking, sharpness, and the like, and to form a water film on the outer surface of the coating film.

At this time, of course, the predetermined coating film can be formed on one side or both sides of the polarizing film, but for simultaneous shielding effect of natural light, ultraviolet light and reflected light, it is preferable to form both on both sides, such as special acrylic film formed on the polarizing film. In this case, it is preferable to be formed on both one side and both sides.

The coating film is preferably to be coated with at least two or more silicon dioxide, silicon nitrous oxide and aluminum oxide, each alone or overlapping to form a film, wherein the silicon dioxide, silicon oxyconium dioxide, aluminum oxide, etc., the higher the purity In particular, as shown in the following examples, it is preferable that the silicon dioxide coating film, the silicon dioxide coating film, the aluminum oxide coating film, the silicon dioxide coating film, the silicon dioxide coating film is formed in consideration of light blocking, sharpness, and the like.

The hard coating film preferably flows on a surface of a polarizing film or an acrylic film, in particular, a hard coating liquid, for example, a glass component, for preventing anti-gas and strengthening the coating film during vacuum deposition. UV It is formed by coating through drying.

The iron coating film is formed by coating the iron by vacuum evaporation. In particular, since the film, particularly the acrylic film, may be weakened by low temperature evaporation, the iron coating film is performed to make the film stronger.

The water film is formed to smooth the surface, to remove moisture, and to give water to flow down when it is rained, and to use a composition for coating powder compressed water film which is commonly used. do.

The multi-coating method of the present invention, a polarizing film and the polarizing film formed on the polarizing film itself, or at least one film selected from the group consisting of a predetermined film, preferably a special acrylic film, a hard coating film and an ion coating film on the polarizing film itself and the predetermined As a multi-coating method of the film, at least one or more selected from the group consisting of silicon dioxide, silicon dioxide and aluminum dioxide are deposited on the lens, i.e., as a preferred method of vapor deposition, as shown in the examples below. Silicon dioxide coating film, silicon dioxide coating film, aluminum oxide coating film, aluminum oxide coating film, silicon dioxide coating film, and silicon dioxide coating film are deposited to form, and at this time, the deposited lens is continuously rotated so that the surface temperature is 70-110 ° C. to perform deposition. do.

If the surface temperature is less than 70 ° C, vapor deposition may be difficult, and if it exceeds 110 ° C, there is a fear of discoloration.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

2 is a schematic view showing the structure of a polarized sunglass lens M according to one embodiment of the present invention.

As shown in FIG. 2, in the polarizing sunglass lens M according to the exemplary embodiment of the present invention, a polarizing film 1 is placed at the center thereof, and a special acrylic 3, is disposed around the polarizing film 1. 30) is pressed, wherein the polarizing film 1 and the special acrylics 3, 30 are in particular UV Adhesion is achieved by adhesives 2 and 20, and hard coating films 4 and 40 are formed on the outer surfaces of the special acrylics 3 and 30, respectively, and iron coating films 5 and 50 on the outer surfaces of the hard coating film, respectively. ) Is formed, and silicon dioxide is coated on the outside of the iron coating films 5 and 50, respectively, and silicon dioxide coating films 6 and 60 are formed, and on the outer surface of the silicon dioxide coating films 6 and 60, Coated with nitrous oxide, respectively, to form a nitrous oxide coating layer (7, 70), the aluminum oxide is coated on the outer surface of the nitrous oxide coating layer (7, 70) to form an aluminum oxide coating layer (8, 80) The outer surface of the aluminum oxide coating film (8, 80) is coated with silicon dioxide to form a silicon dioxide coating film (9, 90), the outer surface of the silicon dioxide coating film (9, 90), Silicon is again coated to form silicon dioxide coating films 10 and 100. In addition, the outer surfaces of the silicon dioxide coating films 10 and 100 are formed by coating the water films 11 and 1100.

According to the above configuration, the polarized sunglass lens M of the present invention not only prevents natural light, ultraviolet rays, and reflected light, but also prevents retro-reflected light, and also increases the sharpness.

Hereinafter, a method of manufacturing the polarized sunglass lens M according to the preferred embodiment of the present invention will be described in detail.

First, the polarizing film layer (P) is hard-coated by flowing a glass component liquid in a hard coating machine on one side of a special acrylic, and then dried through a drying furnace. Then, the polyvinyl chloride film, which is a polarizing raw material, is stretched three times on a drawing machine, and then dyed to produce a polarizing film. An adhesive is applied to each side of the manufactured polarizing film and the surface not subjected to the hard coating of the special acrylic plate, and pressed by a roller, followed by passing through a drying furnace.

Next, one side conductor layer (O) or the other side conductor layer (I), after the polarizing film layer (P) manufacturing process of the above, by cutting the polarizing film layer (P) prepared in this way to 5cm and 7cm After preparing the glasses, the cut product is placed in a heated mold press, pressed into the egg-shaped shape of the sunglass to make a bend, and as described above on both sides of the cut polarized film layer P having the bend formed. Silicon dioxide, silicon nitrate, aluminum oxide, silicon nitrate and silicon dioxide are deposited by coating with an electron gun in a vacuum deposition machine, respectively, where the lens is continuously rotated and its surface temperature is approximately 90 ° C. Then, a water film is formed by vapor deposition.

3 is a schematic diagram illustrating sungrass G to which a polarized sunglass lens M is applied according to an embodiment of the present invention.

As shown in FIG. 3, a polarized sunglass (G) to which a polarized sunglass lens (M) is applied according to an embodiment of the present invention may be manufactured and used, thereby shielding ultraviolet light and maximizing an antireflection effect. Relieves eye strain, which in turn helps to improve vision or prevents vision deterioration, and the clarity of sunglass is high, thereby increasing the preference of the use.

The polarized sunglass lens M according to the present invention can shield unnecessary natural light, ultraviolet rays, reflected light or retroreflected light, improves sharpness, and achieves an effect of improving visual acuity.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims (6)

In the polarizing sunglass lens, Polarizing film 1; And A polarizing film comprising: a coating film (C) formed by coating at least one or more selected from the group consisting of silicon dioxide, silicon dioxide, and aluminum oxide on one side or both sides of the polarizing film (1). Sunglass lens. The method according to claim 1, wherein the polarized sunglass lens (M), A special acrylic film (3, 30) bonded between the coating film (C) and the polarizing film (1), one side or both sides of the polarizing film (1); A hard coating film (4, 40) coated on the outer surface of the special acrylic film (3, 30); And an iron coating film (5, 50) coated on an outer surface of the hard coating film (4, 40). The method of claim 2, wherein the special acrylic film (3, 30), U.V. Polarizing sunglass lens, characterized in that the adhesive by the adhesive (2, 20). The method according to claim 1, wherein the polarized sunglass lens (M), Polarizing sunglass lens, characterized in that to further form a water film (11, 110) on the outer surface of the coating film (C). In the coating method of a polarizing sunglass lens, Vacuum depositing at least one or more selected from the group consisting of silicon dioxide, silicon nitrous oxide and aluminum oxide on the lens, including the overlap, by continuously rotating the lens during deposition so that the surface temperature is 70 ~ 110 ℃ Polarized sunglass lens multi coating method. The method of claim 5, wherein the polarizing sunglass lens coating method, And at least one film selected from the group consisting of a special acrylic film, a hard coating film, and an ion coating film on the lens before vacuum deposition.