KR100686551B1 - Manufacturing method of cross stripes lens and lens thereof - Google Patents

Abstract

A grating patterned lens manufacturing method and a lens produced by the same are provided to facilitate manufacturing work by adding a simple process without replacing or changing a production facility for coloring glasses and to express the user's personality. A grating patterned lens manufacturing method is composed of steps of: cleansing a lens(10) by a cleaning solution; printing an ink print layer of a grating pattern(21) on the lens surface and drying the ink print layer for 1~3 hours at normal temperature; forming a coloring layer(30) by dipping the lens in a high-temperature coloring solution or applying the coloring solution on the surface of the lens and drying the coloring layer for 1~3 hours by the hot air of 60~100‹C; and removing the ink print layer by a remover.

Description

MANUFACTURING METHOD OF CROSS STRIPES LENS AND LENS THEREOF

1 is a perspective view of a grating pattern lens and a partial enlarged according to the present invention.

Figure 2 is a block diagram showing a manufacturing process of the grating pattern lens according to the present invention.

3 is a sectional view of a lens based on a main part manufacturing process of a grating pattern lens according to the present invention;

Figure 4 is a cross-sectional view showing the flow of external incident light flowing into the grating pattern lens according to the present invention.

5 is a cross-sectional view showing the flow of external incident light flowing into the conventional lens.

Explanation of symbols on the main parts of the drawings

10 lens 11 lens inner surface

12: lens outer surface 20: ink print layer

21: grid pattern 30: reflective layer

L1: External incident light L2: External reflected light

L3: internal reflection light

The present invention relates to a method for manufacturing a grating pattern lens that can be applied to a spectacle lens, a contact lens or a camera lens, and a lens manufactured by the method. The grating pattern refers to horizontal and vertical thin lines that are not colored.

In general, a special coating is applied to the surface of the lens in order to reduce the eye fatigue and to form a clear subject image on the retina by controlling the light scattering phenomenon, the interference of the light or the refractive index of the lens, and the coating means are various. .

As an example, the Korean Utility Model Publication No. 89-1226, published March 17, 1989, formed a lens made of special synthetic resin in double, with fine horizontal and vertical lines between the lens and the lens in a regular square. The Korean Utility Model Publication No. 89-4778, published April 18, the same year, was made with a non-ferrous metal or a special plastic material to cover or cover a 1.5 mm-thick net of square nets inside the glasses. There is a cover to block the direct sunlight at an angle.

However, these past prior arts have lateral and vertical lines that are opaque, so when wearing glasses prepared with such lenses, the horizontal and vertical lines are clearly exposed to impair aesthetics, and the amount of light incident to the eye is excessive. Since it reduces a lot, there is a problem that visibility is reduced at night.

As a related art of the related art, 'anti-glare transmissive member' of Korean Patent Registration No. 0125112 was published on December 4, 1997, and the gist of the light absorbing mineral particles such as calcite, potassium carbonate and mica was 650 nm. It has been proposed to produce the following particle size and then apply it linearly on the surface of the lens, so that the mineral particles absorb the scattered light, but this is because the supply and demand of the mineral itself is unstable and must be crushed into very fine particles. In this complicated structure, mineral grains are easily peeled from the lens due to contact or friction of the lens surface in daily life such as wiping the lens with a hand or a glasses towel. In addition, the exfoliated mineral particles generate scratches on the surface of the lens to shorten the life of the lens. There is a problem.

As another conventional technology, 'eye vision correction spectacle lens' of Korean Patent Publication No. 0455302 was published on November 6, 2004, and the gist is that a thin film adhered or coated on the surface of the lens has a specific area, that is, visibility Is a technology that blocks light in the high yellow area to the blocking area.

However, blocking the light of a certain area by the blocking area has a problem of lowering visibility at night, which makes it difficult to wear it realistically. When the thin film forming the blocking area is attached with an adhesive film, the risk of peeling Along with the manufacturing failure rate is high due to the high productivity has a problem that greatly decreases.

As described above, the conventional techniques of coating or coating a specific material on the surface of the lens in various forms may prevent scattered light, such as nighttime visibility or durability, and prevent the scattered light. In addition, despite the beauty of its appearance at the same time does not meet all of the beauty of the reality, there is a problem that does not satisfy the consumer's desire to buy.

The present invention is to solve the above problems, the present invention is beautiful by the color pattern of the appearance while removing the scattered light by the pin-hole effect of the lens to reduce the glare phenomenon and eye fatigue At the same time, the object of the present invention is to provide a method for manufacturing a lens that can be manufactured by a simple manufacturing process without changing the existing production equipment.

Another object of the present invention is a lens that does not reduce visibility at night so that the subject can be seen bright even in spite of being colored, compared to the above-mentioned object and a general colored lens at night, that is, a lens having a colored layer formed on the entire surface of the lens. To provide.

Still another object of the present invention is to facilitate the preparation (processing) of a lens by a lens having a breaking pattern of horizontal and vertical thin lines.

The present invention for achieving the above object, in the method for forming a lattice pattern on the lens surface, the lens washing step of washing the lens as a cleaning liquid, the lattice pattern to form an ink print layer of the lattice pattern on the lens surface, and dried A pattern printing step, a color step of immersing the lens in a coloring solution or applying a coloring solution to the lens surface to form and drying a colored layer, and a print ink removing step of removing the ink print layer as a remover. It features.

According to the present invention, when the lens is a transparent synthetic resin, it may further include a lens hard coating step for enhancing the friction resistance on the surface of the grating pattern lens.

On the other hand, the lens manufactured by the manufacturing method is a non-colored lattice pattern is formed on the surface, a checkerboard-like colored layer is formed on the surface except the lattice pattern, the horizontal and vertical width of the lattice pattern is each 0.1mm It is preferable that it is-0.5 mm.

Hereinafter, the operation of the grating pattern lens and the grating pattern lens of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view of a grating pattern lens and a partially enlarged perspective view according to the present invention, FIG. 2 is a block diagram illustrating a grating pattern lens manufacturing process according to the present invention, and FIG. 3 shows a main part manufacturing process of the grating pattern lens according to the present invention. It is a lens cross section.

A characteristic of the grating pattern lens of the present invention with reference to FIG. 1 is that the grating pattern 21 which is not colored is formed on the surface of the lens 10, and the color layer 30 is formed on the remaining surfaces except for the grating pattern 21. Thus, the lens 10 surface is formed with a colored layer 30 in the form of a checkerboard.

Here, the colored layer 30 is also an area through which light is transmitted, like a general colored lens, and the grid pattern 21 is a thin line having a width of 0.1 mm to 0.5 mm in width and length, and is not colored. It is the surface of (10), and is also an area | region which can transmit light.

As a method of forming the colored layer 30 formed on the surface of the lens 10 to maintain a constant interval by the non-colored grating pattern 21 as shown in FIG. 1, various manufacturing methods may be considered, but general coating techniques or As with the printing technique, the method of coating or printing the colored layer 30 directly on the lens surface is difficult to make the lattice pattern 21 thin and uniform over the entire length, thus providing a better quality lattice pattern lens. In order to manufacture a new printing technique is required, which will be described with reference to FIGS.

As shown in Figures 2 and 3, the method of manufacturing a lattice pattern of the lens according to the present invention, the lens cleaning step of washing the dust or foreign matter remaining on the surface of the lens 10 using a cleaning solution such as acetone ( After S1), a grid pattern printing step S2 of forming a grid pattern ink print layer 20 on the surface of the lens 10 is included.

In order to form the grid-patterned ink print layer 20 on the lens 10, pad printing or silk printing techniques are used. As an example, a general pad printing technique has elasticity and flexibility, such as silicon, for printing ink. After transferring to the pattern formation surface of the pad, it is transferred to the to-be-printed object, wherein according to the present invention, the pattern refers to a lattice pattern and the to-be-printed object refers to a lens.

The ink used in the lattice pattern printing step S2 is preferably a two-component urethane ink that can be printed on the glass surface in consideration of the fact that the lens to be printed is glass or synthetic resin. The ink print layer 20 is not limited thereto, and in view of the removal of the ink print layer 20 by a remover such as alcohol or acetone in the subsequent step, it is preferable to avoid ink having a high resistance to chemical products.

After the ink print layer 20 is printed, sufficient drying should be performed. The drying is performed by adjusting the temperature and the temperature within a range of 1 hour to 3 hours at room temperature according to season and temperature, wherein the ink print layer 20 is The widths of the horizontal and vertical lines are satisfied as long as the thin lines are in the range of 0.1 mm to 0.5 mm, respectively. Thus, the grid pattern printing step S2 according to the present invention allows the ink print layer 20 to be dried under the above conditions. Process.

Next, according to the present invention, the coloring step S3 for forming the colored layer 30 by coloring a predetermined color on the surface of the lens 10 on which the ink print layer 20 is formed is performed.

The coloring step S3 may be any method of dipping the lens 10 in a high temperature coloring solution or applying the coloring solution to the surface of the lens 10 or other known methods for coloring the lens surface. In order to make the thickness of the colored layer 30 formed on the lens 10 uniform, it is preferable to use a technique of immersing it in a high temperature coloring solution.

After the coloring step (S3), the hot colored solution penetrates into the unprotected area from the ink print layer 20 to form the colored layer 30 on the thin film as in the coloring step (S3) of FIG.

Of course, the coloring solution forming the colored layer 30 is a transparent coloring liquid with a slight color, not blocking the light completely, generally there is no limitation as long as it is used for lens coloring, the surface of the lens 10 After applying the coloring liquid to the, then it is dried for 1 to 3 hours under hot air of 60 ℃ to 100 ℃ to cure the colored layer 30, as described above, the coloring step (S3) according to the present invention is a colored layer ( 30) drying under the above conditions.

As a next process, the present invention includes a print ink removing step S4 of removing the ink print layer using a remover.

The print ink removing step S4 is a process of removing the ink print layer 20 formed in the grid pattern printing step S2 with a general volatile chemical such as acetone or alcohol, and cleaning the lens surface by using a remover. The ink print layer 20 is removed by a chemical reaction to the remover. On the contrary, the colored layer 30 formed in the region where the ink print layer 20 is not applied remains even after the ink print layer 20 is completely removed.

Finally, as shown in FIG. 1, the colored layer 30 is formed on the lens 10, and the colored layer 30 is a space in which the ink print layer 20 is removed. That is, it is formed in the form of a checkerboard by the non-colored grid pattern 21.

Here, the lens 10 may be made of glass, or may be a transparent synthetic resin material, and in the case of synthetic resin, the lens hard coating step S5 may be performed to enhance wear resistance or friction resistance of the lens surface.

Lens hard coating step (S5), by coating a film of a high hardness silicone-based resin on the surface of the lens 10, is usually manufactured by immersing in a liquid high-hardness silicone-based resin and then dried, even in the coating process In addition, since this is a technique generally used in the art, more detailed description is omitted.

Of course, the present invention may further include a lens multi-coating step (S6) in addition to the hard coating step (S5). Lens multi-coating step (S6), also referred to as an anti-reflective multi coated (m6) is a process of coating a thin film by depositing magnesium fluoride, aluminum oxide, etc. in a vacuum on the lens surface, this is also commonly used technology Therefore, detailed description thereof will be omitted.

According to the above description, the process of forming the grid pattern 21 into the lens 10 according to the present invention is performed before and after the coloring step S3, which is a general process, respectively. The removal step (S4) is further added. The device or technology required for this additional step is not particularly advanced or requires special research, so that the grating pattern lens can be easily replaced without changing the existing production equipment or changing the structure. Can be manufactured.

4 is a cross-sectional view illustrating the flow of external incident light flowing into the grating pattern lens according to the present invention, that is, the scattering light suppressing effect of the lens 10 having the grating pattern 21 and the colored layer 30 is shown. In order to more easily understand the improved action of scattered light suppression according to the present invention, reference is made to a conventional lens cross-sectional view and FIG. 5 showing scattering of incident light accordingly.

Referring to FIG. 5, when the spectacle lens 1 is manufactured using a general lens without a colored layer and a lattice pattern, the cross-sectional state of the lens 1 is shown.

In this state, the external incident light L1 that projects an external subject (not shown) and enters the lens 1 is separated at the boundary of the inner surface 2 of the lens 1, some of which is substantially the most of the eyeball. (4) is incident and the subject is projected, a part of which is reflected forward from the inner surface (2) and then reflected back from the outer surface (3) of the lens (1) to the internal reflection light (L3) to the eye (4) is present As such, light incident from the same subject may be directly incident to the eyeball 4, and part of the light may be separated into the internal reflection light L3, resulting in scattering of light such as reaching the eyeball 4 at another position. do.

Of course, the distortion of the subject or the unclear image due to the scattered light may not be greatly recognized, but it may cause glare and also cause eye fatigue when the glasses are worn for a long time.

Unlike FIG. 5, although not shown, another case of a general lens can be considered as a colored lens in which a color is coated on the entire surface of the lens 1, which is more scattered light than an uncolored lens of light. While there is an advantage that can be suppressed more effectively, there is a disadvantage in that visibility is low at night because sufficient light is not transmitted by the colored layer in the dark place.

In contrast, according to the present invention, the lens 10 in which the fine grid pattern 21 and the colored layer 30 are formed reduces the incidence of internal reflection light by the inner surface 11 of the lens 10 into the eyeball 40. In addition, since the bright light incident through the grating pattern 21 compensates for the loss of light amount due to the colored layer 30, visibility is not greatly reduced at night.

That is, as shown in FIG. 4, the external incident light L1 entering the lens 10 is introduced through the grating pattern 21 or the colored layer 30 in any case. First, the grating pattern 21 is introduced through the grating pattern 21. In the case of the incoming external incident light L1, some or substantially most of the light passes through the lens 10 and enters the eye 40 to form an image of the subject, and is reflected from the inner surface 11 of the lens 10. When the internal reflection light L3 reaches the colored layer 30, it is not reflected by the colored layer 30 again but is extinguished or reflected in a very small amount and enters the eye 40, thereby preventing scattering of light compared to a general lens. It can be suppressed.

In this case, the wider the area of the colored layer 30 than the area of the grating pattern 21 with respect to the lens 10, the more effective for extinction of the internal reflection light (L3), which is a thin line of internal reflection light (L3) This is because the likelihood of reaching the colored layer 30 distributed in a wider area than that of the lattice pattern 21 is increased.

Therefore, the width and width of the lattice pattern 21 are preferably thin lines in the range of 0.1 mm to 0.5 mm, and the distance between the thin lines of neighboring lattice patterns is at least the thin line width of the lattice pattern. It is preferable that the size of the grating pattern 21 be smaller than 2.5 mm, which is greater than 0.1 mm, which is greater than 0.1 mm, and the thickness of the grating pattern 21 is 0.5 mm or less, in order to be 0.5 mm or less. When the distance between the fine lines of the lattice pattern is 2.5 mm or more, the area of the colored layer 30 is too large compared to the area of the lattice pattern 21, so that visibility may be lowered at night like a general colored lens. The distance between the thin wires is preferably larger than the thin wire width of the breaking pattern.

On the other hand, as in the case of the external incident light L1 incident on the colored layer 30 as shown in Figure 4, a portion of the surface of the colored layer 30 is reflected or absorbed, the amount of light less than the original external incident light (L1) Incident light reaches the eye 40 by penetrating the lens 10, and thus the possibility of reaching the eye 40 at the level of the internal reflection light L3 reflected by the inner surface 11 of the lens is minimal. .

As described above, the operation of FIG. 4 by the lens 10 of the present invention in which the lattice pattern 21 is formed between the colored layers 30 means a kind of pinhole effect.

As is well known, the pinhole effect is an effect that becomes deeper when the object is viewed through a small hole, and the lens 10 of the present invention, in which the colored layer 30 and the grid pattern 21 are combined, Since pinholes are generated on the entire surface to prevent scattering or interference of light by the above-described action, the object can be clearly seen.

In addition, the lens 10 according to the present invention has higher illuminance than a general colored lens in which a colored layer is formed on the entire lens surface. That is, in the case of the normal colored lens, as described above, the scattered light can be suppressed, but the visibility is reduced at night. However, according to the present invention, the illuminance is incident through the colored layer 30. By the combination of reduced light and bright light incident through the uncolored grating pattern 21, the amount of light reaching the eye 40 is purely lighter than that of the colored lens incident through the colored layer 30. Since the amount of incidence is large, the subject can be seen brighter even at night.

In another aspect, the grating pattern lens of the present invention facilitates preparation (processing) of the lens. In other words, when the lens of the present invention is to be used for glasses, a circular lens must be prepared (processed) to match the shape of the spectacle frame as shown in FIG. 1, wherein the thin line of the grid pattern provides a reference position for the processing of the lens. Therefore, when preparing a pair of eyeglasses, it is possible to reduce the processing error, such as one of which is inclined or the size is different, to enable precise preparation (processing).

Since the manufacturing method of the grating pattern lens of the present invention described above can be manufactured by adding a simple process without replacing or changing the existing production equipment for coloring the glasses, it is easy to manufacture and raises the production cost. You will not.

In addition, the glasses of the lattice pattern to which the collar formed on the lens is added have characteristics, so that the wearer's inclination and personality can be produced, and the temple can form aesthetics.

In addition, the lens of the present invention suppresses scattered light by the pinhole effect to prevent glare and reduce eye fatigue, and even though the subject can be clearly seen and colored, the subject looks dark even at night. Compared with a colored lens, the visibility is improved at night.

In addition, the lens according to the present invention provides a reference position at the time of processing the spectacle lens by the thin line of the grid pattern, there is an advantage that the preparation of the spectacle lens is easy.

Lenses formed with the grating pattern and the colored layer of the present invention by the above description is not limited by the configuration illustrated in the drawings and the description thereof, and can be changed in various forms, for example, the grating pattern and the colored layer is a lens It may be formed on the concave inner surface of the bar, therefore, in the claims below, it should be understood that the surface of the lens includes both the convex outer surface of the lens or the concave inner surface.

Claims (7)

In the method of forming a grid pattern on the lens surface, The lens cleaning step (S1) for washing the lens as a cleaning liquid, Printing a grid pattern ink print layer on the lens surface, the grid pattern printing step (S2) for 1 to 3 hours at room temperature, and Coloring step (S3) for immersing the lens in a high-temperature coloring solution or coating the coloring solution on the lens surface to form a colored layer, and drying for 1 to 3 hours under hot air of 60 ℃ to 100 ℃ and And a print ink removing step (S4) for removing the ink print layer as a remover. The method according to claim 1, The width and length of the ink print layer are 0.1 mm to 0.5 mm, respectively, and the distance between the thin lines of the adjacent ink print layers is 0.1 mm to 2.5 mm, and the distance between the thin lines is larger than the width of the thin lines. A method of manufacturing a grating pattern lens. The method according to claim 1 or 2, And a lens hard coating step (S5) for enhancing the friction resistance on the surface of the grating pattern lens when the lens is a transparent synthetic resin. The method according to claim 1 or 2, Method for producing a grating pattern lens, characterized in that it further comprises a lens multi-coating step (S6) as deposition for suppressing reflection on the surface of the grating pattern lens. Lens configuration of the grating pattern by the manufacturing method of claim 1, Lattice patterns 21 of horizontal and vertical thin lines which are non-colored portions on the surface of the lens 10, The lens of the grid pattern, characterized in that the colored layer 30 is colored between the fine lines of the grid pattern. The method according to claim 5, The widths of the horizontal and vertical thin lines of the grid pattern 21 are 0.1 mm to 0.5 mm, respectively, and the distance between the thin lines of neighboring breaking patterns is 0.1 mm to 2.5 mm, but the distance between the thin lines is larger than the width of the thin lines. Lattice pattern lens characterized in that. The method according to claim 5 or 6, The grating pattern lens, characterized in that a hard coating layer or a multi-coating layer is formed on the surface of the lens on which the grating pattern is formed.

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