KR102324841B1 - Matte coated eyeglass lenses - Google Patents

Abstract

According to the present invention, provided are matte coated eyeglass lenses capable of lowering reflexibility and transmissivity by matte-coating eyeglass lenses (1) during the manufacture of the lenses. According to the present invention, the eyeglass lenses include: a lens body (2) made of transparent plastic; a matte coating layer (3) sprayed to a front convex surface of the lens body (2) and then dried to be opaquely coated; and a high-reflection coating layer (4) coated on the surface of the matte coating layer (3) coated on the front convex surface of the lens body (2), through vacuum deposition such that reflection is performed forward. Accordingly, the matte coating layer (3) is formed on the front convex surface of the lens body (2) in a spraying manner, and then, the same surface is coated with high reflection to be matted to prevent glare to other people due to a significant drop in reflexibility, thereby minimizing damage while improving the elegance of exterior, which can lead to high quality. Also, the matte coating layer (3) formed on the inside of the high-reflection coating layer (4) can bring about a significant drop in transmissivity minimizing light transmitted from the outside to the eyes of a user, which are located on the inside of the eyeglass lenses (1), thereby suppressing various types of eye diseases due to a sharp drop in the fatigue of the eyes while preventing the eyes of the user from being exposed to other people, which can lead to an excellent effect of privacy protection.

Description

Matte coated eyeglass lenses

The present invention relates to a spectacle lens to which a matte coating is applied, and to explain this in more detail, a high-reflection coating is applied to the surface of the lens body and then a hard coating is performed so that a matte coating is performed when the finished lens is manufactured. It relates to a spectacle lens to which a matte coating is applied to make the image appear spread in the highly reflective coating layer and to further lower the transmittance.

In general, spectacle lenses are coated with a hard coating to enhance hardness and an anti-reflection coating (AR (Anti-Reflection) coating) to improve transmittance on the uncoated lens body. After applying the same hard coating and anti-reflection coating, it can be finished with a super water-repellent coating that prevents water droplets from spreading or spreading on the surface of the lens to secure a wide field of view. In the case of colored lenses or polarized lenses for sunglasses, a high-gloss high-reflective film or high-reflective coating is applied to the lens.

As such a highly reflective spectacle lens, as disclosed in Korean Patent Application Laid-Open No. 2007 No. 79458 (published on August 7, 2007), the front surface of the hard-coated photochromic lens has a silicon oxide dielectric thin film of different thickness on the front and back surfaces. A mirror-coated photochromic sunglasses lens characterized by depositing a thin film of chrome metal surrounded by an anti-reflection coating on the back side of the lens and water film coating on both sides of the final lens has been developed. There was a problem of being reflected forward and giving glare to others unintentionally, and there was a problem of seeing the wearer's pupils through the mirror coating. It had a number of problems such as

In addition, as disclosed in Korean Patent Publication No. 72032 (published on June 12, 2014), it has a reflective polarizing film layer and an absorption polarizing film layer, and they are arranged in alignment with the transmission axis in this order, and the light Characterized in that the incident side is a spherical or aspherical surface of a block surface, there is substantially no reflection caused by reflection from the mirror surface, has a high transmittance, and the external color of the lens and the sunglasses wearer by the use of a colored absorption type polarizing film layer Although a technology has been developed that allows the user to arbitrarily select the clock color of As it can prevent reflection by color, this also had a limit in lens selection, and as it is stated that it improves transmittance, this also makes the wearer's eyes visible, making it impossible to function properly as a lens for sunglasses or a polarizing lens. As disclosed in Patent Publication No. 42794 (published on April 21, 2015), an adhesive layer is interposed on both sides of a polarizing film in which a polyvinary alcohol-based resin film is stretched and dyed with a dichroic organic dye. In a bent polarizing lens processed into a spherical or aspherical surface or a polarizing lens for snowglass in which a transparent resin for lens is injection molded on the concave surface of the bent polarizing lens by bonding a transparent protective sheet together, the dichroic ratio of the polarizing film is 5 to A polarizing lens for sunglasses has been developed, characterized in that it is dyed by combining a dichroic organic dye to a range of 14, but this also has a limit in diversifying the color of the lens by using a film dyed with a dye Patent Publication No. 72032 of 2014 and No. 42794 of 2015 both have a problem that it is difficult to implement on lenses of various degrees, various materials, and various curves (curved surfaces) by using films for highly reflective (mirror) coated lenses. As such, in the above-described prior art, various There was one problem.

KR 10-2007-0079458 A 2007. 8. 7. KR 10-2014-0072032 A 2014. 6. 12. KR 10-2015-0042794 A 2015. 4. 21.

In the present invention, a new technology was invented to solve the problems of the prior art, and a high-reflection coating (= mirror coating) along with a hard coating and an anti-reflection coating on the lens body of a non-coating is usually applied. In contrast to the sequential, the present invention performs a matte coating to form an opaque film on the surface of a non-coated lens body by a spray method, then a high reflective coating and then hard coating to reduce the reflectance (toward the high reflective coating) It was completed with the task to be solved in the invention in order to provide spectacle lenses with matte coating applied so as to reduce the transmittance by others while doing so.

In addition, although not separately described, other objects within the range that can be inferred in consideration of the specific contents, claims, drawings, etc. It is included in the overall solution of the invention.

As a specific means for solving the problems of the present invention, the present invention constitutes a spectacle lens to which a matte coating is applied. A matte coating layer coated with an opaque coating is provided after spraying on the front convex surface of the lens body, and a highly reflective coating layer coated by vacuum deposition is provided so that the surface of the matte coating layer coated on the front convex surface of the lens body is reflected forward. characterized by being

As described above, a hard coating layer coated by immersion to increase the hardness of the lens is provided on the front and rear surfaces of the lens body coated with the convex surface in the front as described above. An anti-reflection coating layer coated by vacuum deposition is provided to increase the transmittance of the lens body, or a hard coating layer and an anti-reflection coating layer are coated on the front convex surface or the outermost surface of the front and rear surfaces of the lens body to prevent spreading and spreading It is characterized in that it is provided with a super water-repellent coating layer to be coated.

The mat coating layer is formed of several solvents that are volatile at room temperature or evaporated by heating, and after spraying on the surface of the lens body in a mixed state by being dissolved in the solvent, when the solvent is dried, it is deposited on the lens body and coated in an opaque It is characterized in that the matte induction composition is mixed, and the solvent is 40 to 80% by weight of methyl alcohol used as an alcohol-based main solvent, and 1 to 10% by weight of 2- used as an alcohol-based auxiliary solvent. Butoxyethanol (2-Butoxyethanol), 1-20% by weight of isopropyl alcohol (2-Propanol) used as an alcoholic excipient, and deionized 1-20% by weight of purified water used as an aqueous solvent (DI (Deionized) water) is mixed composition, and as the matt induction composition, 1-10 wt% of poly(dimethoxy siloxane) CAS#: 25498-02- which is opaque as a silicone-based organic polymer 6) may be characterized as a mixed composition.

The high reflective coating layer is made of silicon dioxide (SiO ₂ ) and vacuum-deposited low-refractive deposition layer, titanium pentoxide (Ti ₃ O ₅ ), titanium dioxide (TiO ₂ ), tantalum pentoxide (Ta ₂ O ₅ ), dioxide Zirconium (ZrO ₂ ) made of any one of a vacuum-deposited high-refractive-deposited layer, a plurality of low-refractive-deposited layers and a plurality of high-refractive-deposited layers are alternately deposited on the outside of the deposited deposition layer composed of a conductive film that is ion-assisted deposition, or _{, A first low refractive index deposition layer made of silicon dioxide (SiO 2} ) deposited to a thickness of 20±15 nm on the surface of the spray-coated matte coating layer on the lens body, and a thickness of 30±20 nm on the outside of the first low refractive index deposition layer A first high refractive index deposition layer made of zirconium dioxide (ZrO ₂ ) deposited with, and a second low refractive _{index deposition layer made of silicon dioxide (SiO 2} ) deposited to a thickness of 100±50 nm on the outside of the first high refractive index deposition layer, _{A second high refractive index deposition layer made of zirconium dioxide (ZrO 2} ) deposited to a thickness of 60±50 nm on the outside of the second low refractive index deposition layer, and silicon dioxide deposited to a thickness of 100±70 nm on the outside of the second high refractive index deposition layer A third low refractive index deposition layer made of (SiO _{2 ), a third high refractive index deposition layer made of zirconium dioxide (ZrO 2} ) deposited to a thickness of 50±30 nm on the outside of the third low refractive index deposition layer, and a third high refractive index deposition On the outside of the layer, a conductive film made of indium tin oxide (ITO) with a thickness of 10±7 nm, deposited by ion-assisted deposition under the conditions of a voltage of 50 to 150 V, a current of 10 to 30 A, and an amount of oxygen of 5 to 50 sccm, and , it may be characterized in that it is composed of a buffer finishing layer made of _{silicon dioxide (SiO 2} ) deposited to a thickness of 50 ± 30 nm on the outside of the conductive film.

The manufacturing method of the spectacle lens to which the matte coating of the present invention is applied goes through a lens provision step having a plastic lens body, and a silicone-based organic polymer is added to an alcohol-based solvent having volatility or an aqueous solvent to be evaporated by heating. It goes through a mat coating solution manufacturing step of preparing a matte coating solution mixed with the phosphorus matt induction composition, and the mat coating solution prepared in the mat coating solution manufacturing step is sprayed on the front convex surface of the lens body in a spray method, and by the volatility of the alcohol solvent After evaporation, a matte coating step of coating an opaque matte coating layer to a predetermined thickness is performed, and the matte coating curing step of applying heat to the matte coating layer coated on the lens body in the matte coating step to cure it on the surface of the lens body undergoes a curing step, It is characterized in that it is manufactured through a high reflection coating step of coating a high reflection coating layer formed of a low refractive index deposition layer, a high refractive index deposition layer, and a conductive film on the surface of the matte coating layer coated on the front convex surface of the lens body by vacuum deposition.

At this time, in the step of preparing the mat coating solution, after spraying on the surface of the lens body in a mixed state, the solvent is deposited on the lens body and coated with polydimethoxysiloxane (Poly(Poly() dimethoxy siloxane) CAS#: 25498-02-6) is subjected to a step of preparing a matte induction composition having a mixed composition, 40 to 80% by weight of methyl alcohol used as an alcohol-based main solvent, 1~10% by weight of 2-butoxyethanol used as an alcoholic excipient, 1~20% by weight of isopropyl alcohol (2-Propanol) used as an alcoholic excipient, and an aqueous solvent 1 to 10% by weight of the matt induction composition prepared in the step of preparing the matt induction composition, through a solvent preparation step comprising a solvent prepared by mixing 1 to 20% by weight of deionized water (DI (Deionized) water) 40 to 80% by weight of methyl alcohol and 1 to 10% by weight of 2-butoxyethanol and 1 to 20% by weight of isopropyl alcohol (2-Propanol) and purified water ( It may be characterized in that it is prepared through a coating solution mixing composition step in which 1 to 20% by weight of DI (Deionized) water is added to a mixed solvent and mixed.

In addition, after the high reflective coating step, it is possible to protect the matte coating layer and the high reflective coating layer coated on the lens body and increase the transparency while increasing the hardness of the surface. A hard coating step consisting of a washing process of washing the lens body so that Through the hard coating step, the hard coating layer coated on the surface of the lens body 2 is dried at 110±30° C. for 3±2 hours to be cured, and the lens body is put into the vacuum evaporator. ^{(6±3)×10 -5} Torr to increase the adhesion of the metal film forming the anti-reflection coating layer to the rear concave surface of the lens body in a vacuum state. After ion cleaning in (3±2)×10 ^-5 Torr, the anti-reflection coating is started in a high vacuum, and when the coating is completed, the anti-reflection coating step is performed to release the vacuum. In order to increase abrasion resistance and to prevent the spread and spread of water droplets ^{, ion cleaning was performed at (6±3)×10 -5} Torr and then ion cleaning was performed at (3±2)×10 ^-5 Torr in high vacuum. However, it may be characterized in that it is manufactured through a super water repellent coating step of forming a super water repellent coating layer after coating a silicon oxide (SiO _{2 ) to a predetermined thickness before super water repellent coating.}

According to the specific means for solving the above problems, the spectacle lens to which the matte coating of the present invention is applied forms a matte coating layer on the convex front surface by a spray method before hard coating on the surface of the non-coated lens body, and then the matte coating layer is applied to the surface. As a reflective coating, the matte coating layer is coated quickly and quickly, so manufacturing is extremely easy. It is significantly lowered to minimize damage by preventing glare of others, and the transmittance that minimizes the light transmitted through the eyes of the wearer located inside the spectacle lens by the matte coating layer formed inside the highly reflective coating layer It has the effect of suppressing the occurrence of various eye diseases by sharply lowering the fatigue of the eyes by significantly lowering, and thereby has an excellent effect in protecting personal privacy by preventing others from seeing the wearer's pupils.

In addition, the matte coating layer on the convex front surface of the lens body can be coated with a constant thickness on the lens surface of various curves (= curved surface) by spray method rather than film attachment method, so it can be applied to spectacle lenses of various degrees and materials. , the thickness of the lens can be manufactured thinner than that of the film attachment method, and in addition to the effect of rework, it is easy to manufacture and has the effect of significantly reducing the manufacturing cost.

In addition, the matte coating layer inside the highly reflective coating layer makes the high reflective coating layer appear matte, so that it is manufactured into spectacle lenses such as sunglasses or polarized lenses, and when combined with frames of various colors and shapes, the appearance of the glasses is doubled. It is an invention that has many expected effects, such as having an effect that can improve the quality.

1 is a cross-sectional view showing an example of a matte coated lens provided in the present invention;
2 is a graph comparing the reflectance of each wavelength band of the matte coated lens and the non-coated lens of the present invention;
3 is a table comparing the specifications of the matte coated lens and the non-coated lens used in FIG.
Figure 4 is a real photograph showing the actual degree of reflection of the matte coated lens and the non-coated lens of the present invention;
5 is a process diagram showing a method of manufacturing a matte coated lens provided in the present invention;

The present invention relates to a spectacle lens, and if it is described in more detail, the matte coating is made inside the high reflective coating when the spectacle lens is manufactured by performing hard coating, anti-reflection coating, super water-repellent coating, etc. on the surface of the lens body. Therefore, it is intended to provide a spectacle lens to which a matte coating is applied so that the reflectance and transmittance can be further lowered by making the image appear spread in the highly reflective coating layer. It is merely an example for easily explaining the content and scope of the technical idea of the invention and is not limited thereto, and the terms used are also only for describing the embodiment in detail and should not be construed as being limited to the term.

As shown in FIG. 1, the spectacle lens 1 to which the matte coating of the present invention is applied is coated with a transparent plastic lens body 2 and the front convex surface of the lens body 2 opaquely by a spray method. The matte coating layer 3 and the high reflective coating layer 4 coated by vacuum deposition so that the surface of the matte coating layer 3 coated on the front convex surface of the lens body 2 is reflected forward is made of.

The spectacle lens 1 of the present invention is more specifically, as shown in FIG. 1 , first of all, one or two or more of urethane, epoxy, acrylic, styrene, acrylate, and alicarbonate. The mat coating layer 3 is coated by the remaining opaque composition after drying by spraying on the front convex surface of the surface, and vacuum deposition is performed so that the surface of the mat coating layer 3 is reflected forward. After the reflective coating layer 4 is coated as described above, the hard coating layer 5 is coated by immersion on the front and rear surfaces of the lens body 2, which is sequentially formed with matte coating and high reflective coating on the front convex surface. It is configured to increase hardness.

At this time, the anti-reflection coating layer 6 is coated by vacuum deposition on the concave surface of the rear which is one side of the front and rear surfaces of the hard-coated lens body 2 to increase the transmittance of the lens. The super water-repellent coating layer 7 is coated on the outermost surface of the front convex surface or the front and rear surfaces of the lens body 2 coated with the coating layer 5 and the anti-reflection coating layer 6 to prevent surface damage caused by external force, etc. It is configured to fundamentally prevent the spread and spread of water droplets while improving the wear resistance of the device.

In the present invention, the mat coating layer 3 is sprayed on the surface of the lens body 2 in a state of being mixed with several solvents that are volatile at room temperature or evaporated by heating, and the solvent is dried, then the lens body The matte induction composition deposited in (2) and coated with an opaque composition is mixed.

As a more specific example of the mat coating layer 3, the several solvents include 40 to 80% by weight of methyl alcohol used as an alcohol-based main solvent, and 2-butoxyethanol used as an alcohol-based sub-solvent. (2-Butoxyethanol) 1 to 10% by weight and 1 to 20% by weight of isopropyl alcohol (2-Propanol) used as an alcoholic excipient are mixed and deionized to be used as an aqueous solvent other than an alcoholic solvent. 1 to 20% by weight of purified water (DI (Deionized) water) is mixed, and in addition, as the matte induction composition, poly(dimethoxy siloxane) CAS#: 25498 made of opaque silicone-based organic polymer -02-6) 1 to 10% by weight is made to be mixed composition with the several solvents.

The highly reflective coating layer 4 coated on the front surface of the matte coating layer 3 _{is made of silicon dioxide (SiO 2} ) and a vacuum-deposited low-refractive deposition layer, titanium pentoxide (Ti ₃ O ₅ ), titanium dioxide (TiO _{2 )} ), tantalum pentoxide (Ta ₂ O ₅ ), and zirconium dioxide (ZrO ₂ ). A vacuum-deposited high-refractive-deposited layer, a plurality of low-refractive-deposited layers and a plurality of high-refractive-deposited layers are deposited alternately. It consists of a conductive film that is ion-assisted deposition on the outside of the layer.

_{An example of such a highly reflective coating layer 4 is silicon dioxide (SiO 2} ) deposited on the surface of the matte coating layer 3 spray-coated on the lens body 2 to a thickness of 20±15 nm. A refractive index of 1.40±0.10. A first low refractive index deposition layer having, a first high refractive index deposition layer having a refractive index of 2.00±0.20 made of _{zirconium dioxide (ZrO 2} ) deposited to a thickness of 30±20 nm on the outside of the first low refractive index deposition layer, and a first A second low refractive index deposition layer having a refractive index of 1.40±0.10 made of _{silicon dioxide (SiO 2} ) deposited to a thickness of 100±50 nm on the outside of the high refractive index deposition layer, and 60±50 nm on the outside of the second low refractive index deposition layer A second high refractive index deposition layer having a refractive index of 2.00±0.20 made of zirconium dioxide (ZrO _{2 ) deposited to a thickness, and silicon dioxide (SiO 2} ) deposited to a thickness of 100±70 nm on the outside of the second high refractive index deposition layer A third low refractive index deposition layer having a refractive index of 1.40±0.10 and a third high refractive index having a refractive index of 2.00±0.20 made of _{zirconium dioxide (ZrO 2 ) deposited to a thickness of 50±30 nm on the outside of the third low refractive index deposition layer} Indium tin oxide deposited on the outside of the deposition layer and the third high refractive index deposition layer by ion-assisted deposition with a thickness of 10±7 nm under the conditions of a voltage of 50 to 150 V, a current of 10 to 30 A, and an amount of oxygen of 5 to 50 sccm. A conductive film with a refractive index of 2.00±0.20 made of (ITO) and a buffer finishing layer with a refractive index of 1.40±0.10 made of _{silicon dioxide (SiO 2 ) deposited to a thickness of 50±30 nm on the outside of the conductive film.} can do.

2 to 4 show the matte coating lens, which is the spectacle lens 1 to which the matte coating of the present invention is applied, and the non-coated lens, which is the spectacle lens 1 to which the matte coating is not applied. By comparison, in FIGS. 2 and 3, the matte-coated lens and the non-coated lens are provided as 1.60 lenses, respectively, and the matte-coated lens has a central thickness (CT) of 1.93mm and 1.92mm, respectively. As a result of contrasting the two groups of Matte-2 and the non-coated lens with a non-coating manufactured with a center thickness of 1.96 mm, as shown in the graph of FIG. It can be seen that the relatively thin matte coating lens is lower than the coated lens, and it can be seen that the reflectance of Matte-1 with a center thickness of 0.01mm among the matte coating lenses is significantly lower than that of Matte-2. In the case of the lens, it can vary depending on the spray amount and spray pressure when spray coating the matte coating solution. As the spray amount increases, the thickness increases and the degree of opacity increases, thereby lowering the reflectance.

When such a matte-coated lens and a non-coated lens are placed side by side as in FIG. 4 and taken so that the fluorescent lamp is reflected on the surface, the non-coated lens shows the image of the fluorescent lamp clearly due to the high reflection coating layer 4, and the matte-coated lens has a high Since the reflective coating layer 4 is coated, the matte coating layer 3 is coated on the inside, so that the image of the fluorescent lamp is not clear and spreads out as shown. Even though the front has a matte function, it provides the effect of not glare by minimizing light reflection to others and the effect of making the spectacle lens 1 look luxurious in appearance, and the opaque matte coating layer 3 ) by reducing the transmittance to protect the wearer's eyes from external light, thereby preventing various eye diseases, and since others cannot see the wearer's pupils, it provides an effect that contributes to privacy protection. will be.

As shown in the process diagram shown in FIG. 5, the manufacturing method of the spectacle lens 1 to which the matte coating of the present invention is applied, which is configured as described above and provides various effects, is broadly viewed in the lens providing step - matte coating liquid manufacturing step - matte coating. It is manufactured by sequentially proceeding in the order of step - matte coating curing step - high reflective coating step, and this will be described in more detail as follows by giving an example.

1. Lens preparation stage

A transparent lens body 2 made of a plastic of any one or a mixture of two or more of urethane, epoxy, acrylic, styrene, acrylate, and alicarbonate is provided.

2. Coloring step

To prevent staining due to residues on the surface of the lens body 2, clean the lens with a surfactant (neutral detergent) or acetone, and then color the lens.

The coloring of the lens body 2 includes dry coloring and wet coloring. In dry coloring, dyes of Red, Blue, and Yellow are coated on the lens surface by vacuum sublimation, and in wet coloring, a solution containing dyes of various colors. is heated to 90±10℃ to immerse the lens and color it.

3. Heat treatment step

In the coloring step, the lens body 2 colored in the desired color is dried at 120±40° C. for 2±2 hours so that the coloring dye is sufficiently permeated into the lens.

4. Etching and cleaning steps

Etching and cleaning are performed to increase the surface area of the lens body 2 that has undergone the heat treatment step and to increase the adhesion between the matte coating and the hard coating.

The detailed method of etching and cleaning is performed through the following steps 1) to 8).

1) Lens cleaning: Clean the lens with a surfactant (neutral detergent) or acetone.

2) Etching: KOH or NaOH 3~20% by weight mixed, 30~70℃, 2~10min, with ultrasonic wave (10~100kHz)

3) Rinsing : 10~50℃, 2~10 minutes, wash the lens with RO water.

4) Wash: Surfactant (neutral detergent) 0.1~10%, 30~70℃, 2~6 minutes, with ultrasonic wave (10~100kHz)

5) Rinsing(2): 10~50℃, 2~10min, wash the lens with RO water.

6) Hot water bath: Wash with DI water, 20~80℃, 2~10 minutes, with ultrasonic wave (10~100kHz), DI water.

7) Drying: IR heater, 100~200℃, 2~10 minutes

8) Atmosphere: Wait for the lens surface to reach 10~30℃.

5. Matt coating preheating step

The lens body 2, which has undergone the above etching and washing steps, is mounted on a tray, put into an oven preheated to 100±30° C., and dried for 15±15 minutes to preheat the lens for matte coating.

6. Matt coating solution manufacturing step

Separately, a matte coating solution is prepared by dissolving a non-glossy induction composition, which is a silicone-based organic polymer, in an alcohol-based solvent or an aqueous solvent that is evaporated by heating.

6-1. Step of preparing a matte induction composition

In the step of preparing the mat coating solution, it is first dissolved in a solvent and sprayed on the surface of the lens body 2 in a mixed state, and then, when the solvent is dried, it is deposited on the lens body 2 and coated with a silicone-based organic polymer to be opaque. Prepare a matte-derived composition in which dimethoxysiloxane (Poly(dimethoxy siloxane) CAS#: 25498-02-6) is mixed.

6-2. Solvent preparation stage

Thereafter, 40 to 80% by weight of methyl alcohol used as an alcoholic main solvent, 1 to 10% by weight of 2-butoxyethanol used as an alcoholic auxiliary solvent, and alcohol-based auxiliary solvent are used. 1 to 20% by weight of isopropyl alcohol (2-Propanol) and deionized 1 to 20% by weight of purified water (DI (Deionized) water) used as an aqueous solvent are mixed to provide a solvent. do.

6-3. Coating solution mixing composition step

1 to 10% by weight of the matt induction composition prepared in the matt induction composition providing step 40 to 80% by weight of the methyl alcohol prepared in the solvent preparation step and 2-butoxyethanol 1 to 10% by weight and 1 to 20% by weight of isopropyl alcohol (2-Propanol) and 1 to 20% by weight of purified water (DI (Deionized) water) are added to a mixed solvent so as to be mixed.

7. Matt coating step

The mat coating solution prepared in the mat coating solution manufacturing step is sprayed on the front convex surface of the lens body 2, evaporated by the volatility of the alcohol-based solvent, and then coated with the opaque mat coating layer 3 to a predetermined thickness. .

At this time, the amount of mat coating can be adjusted according to the volume of the gun and the pressure of the spray. It is also possible to work continuously with a conveyor belt from the post to the mat coating stage.

8. Matt coating curing step

In the mat coating step, heat is applied to the matte coating layer 3 coated on the lens body 2 to harden the surface of the lens body 2, but dry and heat at 100±30° C. for 2±2 hours.

9. High reflective coating preheating step (including dome mounting step)

After mat coating is made on the lens body (2) through the mat coating step and mat coating curing step, air is blown to clean the surface and mounted on the dome. During the period, let it dry and heat before putting it into the vacuum evaporator for co-reflective coating.

10. High reflective coating step

On the surface of the matte coating layer coated on the front convex surface of the lens body 2, a high reflective coating layer 4 formed of a low refractive index deposition layer, a high refractive index deposition layer, a conductive film, and a buffer finish layer is coated by vacuum deposition.

The lens body 2 is attached to the dome and mounted in a vacuum evaporator, by running the vacuum evaporator, but ever reach the high vacuum, in order to increase the metal film attached to a front convex surface of the lens ^{(6 ± 3) × 10 -5} Torr After performing ion cleaning at (3±2)×10 ^-5 Torr, the high-reflection coating is started and the vacuum is released when the coating is completed.

11. Plasma treatment step

Plasma treatment is performed by putting the lens body (2) with high reflective coating in order to increase adhesion with the hard coating solution, but this plasma treatment is performed with MW-power 10~400watts, vacuum degree 10~200Pa, gas (O ₂₎ ) It should be done under the conditions of 10~200sccm and time of 10~300 seconds.

12. Hard coating step

After the high reflective coating step, it is possible to protect the matte coating layer 3 and the high reflective coating layer 4 coated on the lens body 2 and increase the transparency while increasing the hardness of the surface, and the matte coating layer 3 and the high reflective coating layer (4) A neutral detergent of DI (Di Ionized Water) and RO (Reverse Osmotic Water) and ultrasonic waves of 10 to 100 kHz are irradiated to improve the adhesion of the coated lens body (2) and to remove contaminants. A washing process of washing the lens body 2 consisting of 1 to 6 washing tanks maintaining the temperature, and immersing the washed lens body 2 in a hard coating solution, 1 to 5 μm on the surface of the lens body 2 It rises at a rate of 1 to 5 mm/ses so that a coating film is formed to a thickness of , so that the hard coating layer 5 is attached and formed.

13. Pre-drying step

The hard coating layer 5 coated on the surface of the lens body 2 by the hard coating step is dried at 70 to 90° C. for 5 to 20 minutes so that it is first cured.

14. Main construction stage

The hard coating layer 5 coated on the surface of the lens body 2 by the hard coating step is dried again at 100±30° C. for 3±2 hours after the preliminary drying step to be cured.

15. Preheat drying step (including dome mounting step)

As described above, the surface of the hard-coated lens body (2) is cleaned with air, and the lens body (2) is preheated to 50±30°C for 30±20 minutes before being put into the vacuum evaporator through the dome mounting step of mounting it on the dome. do.

16. Anti-reflection coating step

To increase the adhesion of the metal film forming the anti-reflection coating layer 6 to the rear concave surface of the lens body 2 in a vacuum state by mounting the dome on which the lens body 2 is mounted inside the vacuum evaporator (6±3)× after 10 and then underwent ion cleaning ^-5 Torr at the start (3 ± 2) anti-reflection coating at a high vacuum of × 10 ^-5 Torr by coating is completed, ever turn off the vacuum.

17. Abalone (顚覆) stage

In the dome mounted inside the vacuum evaporator in the anti-reflection coating step, the lens body 2 is turned over to correspond to the opposite side to be mounted on the dome again.

18. Super water-repellent coating step

After applying the matte coating and high reflective coating, the matte coating layer 3 and the high reflective coating layer 4 are protected on the front convex surface of the lens body 2 to improve abrasion resistance and water droplets on the surface of the spectacle lens 1 In order to increase the adhesion of the metal film to prevent the spread and spread of metal film ^{, ion cleaning is performed at (6±3)×10 -5} Torr, and then super water-repellent coating is performed in a high vacuum of (3±2)×10 ^{-5 Torr.} To form a super water-repellent coating layer (7).

In the super water-repellent coating step, a low-refractive material such as _{silicon oxide (SiO 2} ) may be coated to increase adhesion before super-water-repellent coating _{, and in some cases, titanium pentoxide (Ti 3} O), which is a high refractive material instead of _{silicon oxide (SiO 2 ) 5} ), titanium dioxide (TiO ₂ ), tantalum pentoxide (Ta ₂ O ₅ ), zirconium dioxide (ZrO ₂ ), etc. may be coated, and the number of coating layers of the low-refractive material or high-refractive material before such super-repellent coating is limited. there is no

In this way, in the super water-repellent coating step, before the super water-repellent coating, low refractive materials such as _{silicon oxide (SiO 2 ), titanium pentoxide (Ti 3} O ₅ ), titanium dioxide (TiO ₂ ), tantalum pentoxide (Ta ₂ O ₅ ), dioxide Coating a high refractive material such as zirconium (ZrO ₂ ) is a hard coating after matte coating on the convex surface of the front of the spectacle lens 1 in the present invention, and there is no anti-reflection coating. It is intended to have various functions such as increasing adhesion.

According to the above-described spectacle lens (1) to which the matte coating of the present invention is applied and its manufacturing method, the matte coating layer (3) is formed on the convex surface of the front by a spray method before hard coating on the surface of the lens body (2). Then, a high-reflection coating is applied to the surface of the high-reflection coating to significantly lower the reflectance to matte, thereby minimizing damage by preventing glare from others and improving the aesthetics of the exterior. Due to the formed matte coating layer 3, the transmittance for minimizing the light transmitted through the eyes of the wearer positioned inside the spectacle lens 1 of external light is significantly lowered, so that the fatigue of the eyes is sharply reduced, and various eye diseases occur. It has an excellent effect in protecting personal privacy by preventing the wearer's pupils from being seen by others while suppressing the wear and tear.

In addition, since the mat coating is made by a spray method, the coating of the mat coating layer 3 is performed quickly and quickly, so manufacturing is made extremely easy. Because it can be coated on the lens surface of the lens with a certain thickness, it can be applied to spectacle lenses (1) of various degrees and materials of various materials. It is easy to manufacture and has the effect of significantly reducing the manufacturing cost.

As described above, in the detailed description of the present invention, the most preferred embodiment of the present invention has been described, but various modifications may be made within the scope that does not depart from the technical scope of the present invention. It is not limited to the example, but the scope of protection should be recognized from the techniques of the claims to be described later and equivalent technical means from these techniques.

1: Glasses lens
2: Lens body
3: Matt coating layer
4: Highly reflective coating layer
5: Hard coating layer
6: Anti-reflection coating layer
7: Super water-repellent coating layer

Claims (9)

Lens body (2) made of transparent plastic;
After spraying on the front convex surface of the lens body (2), dried and coated with an opaque matte coating layer (3);
a highly reflective coating layer (4) coated with vacuum deposition so that reflection is made forward on the surface of the matte coating layer coated on the convex surface of the lens body (2);
includes,
The mat coating layer 3 includes several solvents that are volatile at room temperature or are evaporated by heating;
When the solvent is dried after spraying on the surface of the lens body (2) in a dissolved and mixed state in the solvent, it is deposited on the lens body (2) and coated with an opaque matte induction composition;
A spectacle lens with matte coating, characterized in that this mixed composition is applied.
The method of claim 1 ;
A hard coating layer (5) coated by immersion to increase the hardness of the lens on the front and rear surfaces of the lens body (2), which is highly reflective coated on the front convex surface;
An anti-reflection coating layer 6 coated by vacuum deposition to increase the transmittance of the lens on the rear concave surface, which is one side of the hard-coated lens body 2 ;
is included, or
Accordingly, a super water-repellent coating layer (7) coated with a hard coating layer (5) and an anti-reflection coating layer (6) to prevent the spreading and spreading of water droplets on the front convex surface or the outermost surface of the front and rear surfaces of the lens body (2) coated );
Matte coating applied spectacle lenses, characterized in that further included.
delete The method of claim 1 ;
As several solvents, 40 to 80% by weight of methyl alcohol used as an alcoholic main solvent, and 1 to 10% by weight of 2-butoxyethanol used as an alcoholic auxiliary solvent, A mixture composition of 1-20% by weight of isopropyl alcohol (2-Propanol) used as an alcoholic excipient and 1-20% by weight of deionized purified water (DI (Deionized) water) used as an aqueous solvent become;
As a matt-inducing composition, a silicone-based organic polymer and 1 to 10 wt% of opaque polydimethoxysiloxane (Poly(dimethoxy siloxane) CAS#: 25498-02-6) is mixed. applied spectacle lenses.
The method of claim 1 ;
The highly reflective coating layer (4) is
A low-refractive deposition layer made of silicon dioxide (SiO _{2 ) and vacuum-deposited;}
Titanium pentoxide (Ti ₃ O ₅ ), titanium dioxide (TiO ₂ ), tantalum pentoxide (Ta ₂ O ₅ ), zirconium dioxide (ZrO ₂ ) made of any one of a vacuum-deposited high refractive index deposition layer;
a conductive film ion-assisted deposition on the outside of the deposition layer deposited such that a plurality of low refractive index deposition layers and a plurality of high refractive index deposition layers are alternately stacked;
A spectacle lens with matte coating, characterized in that this is configured.
The method of claim 1 ;
The highly reflective coating layer (4) is
A first low refractive index deposition layer made of _{silicon dioxide (SiO 2} ) deposited on the surface of the spray-coated matte coating layer 3 on the lens body 2 to a thickness of 20±15 nm;
_{A first high refractive index deposition layer made of zirconium dioxide (ZrO 2} ) deposited to a thickness of 30±20 nm on the outside of the first low refractive index deposition layer;
_{a second low refractive index deposition layer made of silicon dioxide (SiO 2} ) deposited to a thickness of 100±50 nm on the outside of the first high refractive index deposition layer;
_{a second high refractive index deposition layer made of zirconium dioxide (ZrO 2} ) deposited on the outside of the second low refractive index deposition layer to a thickness of 60±50 nm;
_{a third low refractive index deposition layer made of silicon dioxide (SiO 2} ) deposited to a thickness of 100±70 nm on the outside of the second high refractive index deposition layer;
_{A third high refractive index deposition layer made of zirconium dioxide (ZrO 2} ) deposited to a thickness of 50±30 nm on the outside of the third low refractive index deposition layer;
Indium tin oxide (ITO), which is deposited by ion-assisted deposition under the conditions of a voltage of 50 to 150 V, a current of 10 to 30 A, and an amount of oxygen of 5 to 50 sccm, with a thickness of 10 ± 7 nm on the outside of the third high refractive index deposition layer. conductive film;
A buffer finishing layer made of _{silicon dioxide (SiO 2} ) deposited to a thickness of 50±30 nm on the outside of the conductive film;
A spectacle lens with matte coating, characterized in that this is configured.
A lens providing step having a lens body (2) made of plastic;
A mat coating solution manufacturing step of preparing a mat coating solution in which a silicone-based organic polymer, a matte induction composition, is melted in an alcohol-based solvent having volatility or an aqueous solvent that is evaporated by heating;
The mat coating solution prepared in the mat coating solution manufacturing step is sprayed onto the front convex surface of the lens body 2 by a spray method, evaporated by the volatility of the alcohol-based solvent, and then the opaque mat coating layer 3 is coated with a predetermined thickness. coating step;
Matt coating curing step of coating the matte coating layer 3 coated on the lens body 2 in the mat coating step to be cured on the surface of the lens body 2 by applying heat;
A high reflection coating step of coating a high reflection coating layer 4 formed of a low refractive index deposition layer, a high refractive index deposition layer and a conductive film on the surface of the matte coating layer coated on the front convex surface of the lens body 2 by vacuum deposition;
A method of manufacturing spectacle lenses to which matte coating is applied, characterized in that it includes.
8. The method of claim 7;
Matt coating liquid manufacturing step
After spraying on the surface of the lens body (2) in a dissolved and mixed state, when the solvent is dried, it is deposited on the lens body (2) and coated with polydimethoxysiloxane (Poly(dimethoxy) siloxane) CAS#: 25498-02-6) providing a matte induction composition comprising a mixed composition;
40 to 80% by weight of methyl alcohol used as an alcoholic main solvent, 1 to 10% by weight of 2-butoxyethanol used as an alcoholic auxiliary solvent, and A solvent comprising 1 to 20% by weight of isopropyl alcohol (2-Propanol) and a solvent composed of 1 to 20% by weight of deionized purified water (DI (Deionized) water) used as an aqueous solvent preparing step;
1-10% by weight of the matt-derived composition prepared in the matt-derived composition preparation step is mixed with 40-80% by weight of methyl alcohol prepared in the solvent-preparing step and 1-10% by weight of 2-butoxyethanol and iso A coating solution mixing composition step in which 1 to 20% by weight of propyl alcohol (2-Propanol) and 1 to 20% by weight of DI (Deionized) water are added to a mixed solvent and mixed;
A method of manufacturing spectacle lenses to which matte coating is applied, characterized in that consisting of
9. The method according to claim 7 or 8;
After the high reflection coating step, it is possible to protect the matte coating layer 3 and the high reflection coating layer 4 coated on the lens body 2 and increase the transparency while increasing the hardness of the surface, and the matte coating layer 3 and the high reflection coating layer ( 4) A washing process of washing the lens body 2 so as to improve the adhesion of the coated lens body 2 and remove contamination sources, and after immersing the cleaned lens body 2 in a hard coating solution, the lens body 2 A hard coating step consisting of a hard coating process that rises to form a coating film on the surface of the hard coating layer (5) is formed to adhere;
A main drying step of drying the hard coating layer 5 coated on the surface of the lens body 2 by the hard coating step at 100±30° C. for 3±2 hours to be cured;
A preheat drying step of preheating the lens body 2 to 50±30° C. for 30±20 minutes before putting it into the vacuum evaporator;
^{After ion cleaning at (6±3)×10 -5} Torr to increase the adhesion of the metal film forming the anti-reflection coating layer 6 to the rear concave surface of the lens body 2 under vacuum, (3±2)× An anti-reflection coating step of starting the anti-reflection coating in a high vacuum of ^{10 -5 Torr and releasing the vacuum when the coating is completed;}
After that, ion cleaning was performed at ^{(6±3)×10 -5} Torr to increase abrasion resistance on the front convex surface of the lens body (2) and to increase the adhesion of the metal film to prevent the spreading and spreading of water droplets (3±3). 2) × 10 ^{-5 But} performing super water-repellent coating in a high vacuum of Torr, a super water-repellent coating step of forming a super water repellent coating layer 7 after coating _{silicon oxide (SiO 2 ) to a certain thickness before super water repellent coating;}
Method for manufacturing spectacle lenses to which matte coating is applied, characterized in that it further comprises.

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