KR100404584B1 - sunglasses having decorative reflection hologram and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a sunglass having a decorative reflective hologram and a method of manufacturing the same, eliminating the process of overcoating the upper surface of the conventional embossed hologram, instead of manufacturing the laminated film on which the overcoating layer is formed with the embossed hologram and laminating By providing a method, there is provided a manufacturing method of a sunglass having a decorative reflective hologram that can significantly reduce the occurrence of defects, and a sunglass having a reflective hologram manufactured by the manufacturing method.

Description

Sunglasses having decorative reflection hologram and method for manufacturing the same

The present invention relates to a sunglass having a decorative reflective hologram and a method of manufacturing the same, and more particularly, to improve the manufacturing method of the existing sunglass having a hologram to facilitate the formation of an overcoating layer to significantly reduce the occurrence of defective rate and simultaneously manufactured The present invention relates to a sunglass having a decorative reflective hologram to lower the unit cost, and a manufacturing method thereof.

Typically, holography is a phase and amplitude of a coherent wavefront modulated by interaction with a three-dimensional object, recorded on a recording medium, where the stored phase and amplitude are used to reproduce a three-dimensional image of the original three-dimensional object. do.

Recently, as the technology of holography has advanced considerably, technology related to holography has been applied in various fields. In particular, as the market interest in sunglasses using reflective display holograms is gradually increasing, many technologies for sunglasses having holograms have been studied.

Sunglasses using the reflective display holograms include sunglasses using embossed reflective display holograms and sunglasses using volume phase reflection holograms.

Sunglasses using a double embossed reflective display hologram is typically coated with a conductive metal such as silver on the formed embossed hologram and immersed in a electroplating bath to form a metal layer such as a nickel layer; Forming a hologram by continuously forming an interference pattern in a plastic substrate using a metal layer such as the nickel plating layer as a hard master; A coating step of manufacturing a holographic laminate by coating a metal having high reflectivity such as aluminum on the hologram; A single blank is cut and removed from the holographic laminate to form a flat lens blank, which is then heated and softened to form an alternative lens curved in a single axial direction. The alternative lens thus manufactured is manufactured by installing a coupling means to be worn by a user in a conventional manner.

However, such a technology has a disadvantage in that the process of forming the reflective display hologram on the light transmissive plastic substrate is complicated and requires several steps.

Accordingly, the present inventors form a reflective hologram laminate in a sunglass having a decorative reflective hologram of Korean Patent Application No. 2000-16776 and a method for manufacturing the same by a transfer method on a light-transmissive plastic substrate, and in the process, the hologram laminate And a technology that allows the light-transmissive plastic substrate to be attached efficiently.

More specifically, the technique prepares a holographic laminate comprising a base film layer, a release agent layer, a primer layer, a transparent metal layer, an embossed reflective display hologram and an adhesive layer sequentially, and the adhesive of the holographic laminate The layer is seated facing the light transmissive plastic substrate, and then the holographic laminate is pressed onto the light transmissive plastic substrate while transferring heat and pressure simultaneously using a stamper, and the hardness on top of the embossed hologram. And a method of manufacturing a lens blank by overcoating in order to impart scratch resistance, and then forming the lens blank by a conventional method and post-processing to manufacture sunglass.

The manufacturing method described above has the advantage that the hologram can be easily formed on the light transmissive plastic substrate as well as the hologram is efficiently adhered to the light transmissive plastic substrate as compared with the conventional sunglass manufacturing method.

However, the overcoating process is performed to improve the regeneration efficiency of the embossed hologram and maintain the hardness and the scratch resistance of the embossed hologram during the manufacturing process of the sunglass, which is a technology pre- filed by the present inventors. There is a problem in that the over-coating with a thickness and the removal of dust during over-coating are very difficult and the defective rate is high.

Accordingly, the present invention provides a method of manufacturing a sunglass having a decorative reflective hologram that not only can easily form an overcoating layer by improving the method of manufacturing a conventional sunglass pre- filed by the present inventor, but also significantly lowers a defect rate. There is a purpose.

It is also an object of the present invention to provide a sunglass having a decorative reflective hologram produced by the above-described manufacturing method.

1 is a perspective view of a sunglass having a decorative reflective hologram according to one embodiment of the invention.

2 is a view showing a lens blank according to an embodiment of the present invention.

3 is a view sequentially showing a manufacturing process of the sunglass having a decorative reflective hologram according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: sunglasses

10 lens 11 hologram 20 frame

3: lens blank

31: film laminate

311: overcoat layer 312: ultra-thin ultra-transparent film

313: hologram layer 314: adhesive layer

32: light transmissive plastic substrate

The present invention to achieve the above object

In the method of manufacturing a sunglass having a decorative reflective hologram on one side,

Forming an embossed reflective hologram layer under the ultra-thin ultra-transparent film, forming an adhesive layer under the embossed reflective hologram layer, and providing hardness retention and scratch resistance on the ultra-thin ultra-transparent film A first step of manufacturing a film laminate comprising a step of forming a coating layer;

A second step of seating the adhesive layer of the film laminate manufactured in the first step toward the light-transmissive plastic substrate and then laminating to form a lens blank; And

It can be achieved by providing a method of manufacturing a sunglass having a decorative reflective hologram, characterized in that the third step of forming the lens blank by a conventional method and post-processing to produce a sunglass.

The present invention also provides a sunglass having a decorative reflective hologram, characterized in that it is manufactured by the above-described manufacturing method.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, which are presented to aid the understanding of the present invention, but the present invention is not limited thereto.

1 is a perspective view of a sunglass having a decorative reflective hologram according to one embodiment of the invention. As shown, the sunglass 1 having a decorative reflective hologram according to the invention consists of a lens 10 and a frame 20. In this case, the lens 10 is provided with a hologram 11, and the hologram 11 is formed to be reproduced by an observer and not reproduced by a wearer.

FIG. 2 is a view showing a structure of a lens blank according to an embodiment of the present invention. When the lens blank 3 is formed and processed by a suitable method, the lens 10 shown in FIG. 1 may be obtained.

As shown in FIG. 2, the lens blank 3 according to the exemplary embodiment of the present invention has an overcoating layer 311 formed on an ultra-thin ultra-transparent film 312, and is formed under the ultra-thin ultra-transparent film 312. A hologram layer 313 and a film laminate 31 having an adhesive layer 314 formed on the bottom of the hologram layer 313; It consists of a light transmissive plastic substrate 32.

3 is a view sequentially illustrating a manufacturing process of the sunglass having a decorative reflective hologram according to the present invention.

As shown, the present invention first forms an embossed reflective hologram layer under the ultra-thin ultra-transparent film, forms an adhesive layer under the embossed reflective hologram layer, and maintains hardness and scratch resistance on the ultra-thin ultra-transparent film. For the application, a first step of forming a film laminate by forming an overcoating layer proceeds (101, 102, 103, 104 in Fig. 3).

That is, in the first process, first, an embossed reflective hologram layer is formed below the ultra-thin ultra-transparent film (101 in FIG. 3) (102 in FIG. 3), and then an adhesive layer is disposed below the embossed reflective hologram layer. After forming (103 of FIG. 3), and then overcoating to form an overcoat layer on the top of the ultra-thin ultra-transparent film for maintaining hardness and scratch prevention (104 of FIG. 3) to produce a film laminate do.

As the ultra-thin ultra-transparent film, various films can be used, including polyester, polyethylene terephthalate, polycarbonate, or acrylic film.

In this case, the forming of the embossed reflective hologram layer under the ultra-thin ultra-transparent film may be applied in various ways (102 of FIG. 3).

For example, a conventional holographic laminate in which a base film layer, a release agent layer, a primer layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer are sequentially formed is prepared, and the adhesive layer of the holographic laminate is an ultra-thin supertransparent film. The hologram may be formed by pressing the holographic laminate onto the ultra-thin transparent film while transferring the heat and pressure simultaneously using a stamper while seating downward. At this time, the base film layer is removed.

As another example, a holographic laminate prepared with a base film layer, a primer layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer in sequence is prepared, and the adhesive layer of the holographic laminate is seated to face an ultra-thin ultra-transparent film underneath. And then laminated to form a hologram. At this time, the film constituting the base film layer is preferably to use an ultra-thin ultra-transparent film. That is, a hologram may be formed by directly attaching a holographic laminate to an ultra-thin transparent film without using a transfer method unlike the above example.

In another example, a holographic laminate having a base film layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer sequentially formed is prepared, and the adhesive layer of the holographic laminate is seated to face an ultra-thin ultra-transparent film. It can then be laminated to form a hologram. At this time, the film constituting the base film layer is preferably to use an ultra-thin ultra-transparent film. Similarly to this method, a holographic laminate is formed by attaching the holographic laminate to the ultra-thin transparent film and forming a hologram without removing unnecessary primer layers. To attach.

At this time, the base film layer may be used an ultra-thin ultra-transparent film made of polyester or polyethylene terephthalate, the adhesive layer may be formed using a vinyl chloride resin, the primer layer is a urethane-based, acrylic or melanin-based It can be formed using a primer.

After forming the reflective hologram layer embossed on the ultra-thin ultra-transparent film by various methods as described above, and then forming an adhesive layer under the embossed reflective hologram layer (103 in Figure 3). In this case, the adhesive layer may be formed using an adhesive that is commonly used, including vinyl chloride resin.

After the formation of the adhesive layer is completed, the step of forming an overcoating layer on the top of the ultra-thin ultra-transparent film for maintaining the hardness and scratches (104 of Figure 3).

At this time, the over-coating to have a high transparency on the top of the ultra-thin ultra-transparent film to prevent hardness and scratches is very easy in the field of film formation and is also widely used technology.

As such, when the overcoating layer is formed on the ultra-thin ultra-transparent film, a defect occurrence rate is remarkably lower than forming the overcoating layer on the top of a conventional embossed hologram. This is due to the characteristics of the conventional embossed hologram overcoating to the same thickness on the top and the removal of dust during overcoating is very difficult, the defect rate is high, but in the case of the present invention to form an overcoating layer on a flat ultra-thin ultra-transparent film Since the failure rate is very low. In fact, when the overcoating layer is formed on the ultra-thin ultra-transparent film according to the present invention, the incidence of defects when the overcoating layer is formed on the top of a conventional embossed hologram is less than about 20%. .

When the first step is completed, the second step of forming the lens blank by laminating the adhesive layer of the film laminate manufactured in the first step toward the light-transmissive plastic substrate and laminating it (Fig. 3). 201,202,203).

That is, in the second process, the adhesive layer of the film laminate manufactured in the first process is seated toward the light-transmissive plastic substrate (201 in FIG. 3), and then laminated (202 in FIG. 3) to form a lens blank (FIG. 3). 203).

A feature of the present invention is to eliminate the process of overcoating the top of the conventional embossed hologram as shown in the first and second steps, and instead to the film laminated body having the overcoating layer formed thereon with the embossed hologram and laminating. . By doing so, it is possible to significantly reduce the incidence of defects as compared to the conventional method of overcoating the top of the embossed hologram and manufacturing the sunglass.

The lens blank manufactured in the second step is molded by a conventional method according to the third step of the present invention, and then processed into a sunglass (FIG. 301, 302, 303). That is, the sunglass is manufactured by molding (301 of FIG. 3) and bending means (302 of FIG. 3) for the user to wear the molded lens by cutting the lens blank and bending it by heating and softening it. 303 in FIG. 3).

As described above, the present invention eliminates the process of overcoating the top of the conventional embossed hologram, and instead decorates the film laminate having the overcoating layer formed thereon with the embossed hologram and the laminating, thereby reducing the defective rate significantly. It is a useful invention which provides the manufacturing method of the sunglass which has a hologram, and the sunglass which has the reflective hologram manufactured by the manufacturing method.

Although the present invention has been described with reference to the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (5)

In the method of manufacturing a sunglass having a decorative reflective hologram on one side, Forming an embossed reflective hologram layer under the ultra-thin ultra-transparent film, forming an adhesive layer under the embossed reflective hologram layer, and providing hardness retention and scratch resistance on the ultra-thin ultra-transparent film A first process of manufacturing a film laminate comprising the steps of forming a coating layer (101, 102, 103, 104); Second steps (201, 202, 203) of forming a lens blank by placing the adhesive layer of the film laminate manufactured in the first step toward the light-transmissive plastic substrate and then laminating to form a lens blank; And And a third step (301, 302, 303) of forming the lens blank by a conventional method and post-processing to manufacture the sun glass. The method of claim 1, further comprising: forming an embossed reflective hologram layer under the ultra-thin ultra-transparent film during the first process; A conventional holographic laminate, in which a base film layer, a release agent layer, a primer layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer are sequentially formed, is prepared, and the adhesive layer of the holographic laminate has an ultra-thin supertransparent film underneath. The method of manufacturing a sunglass with a decorative reflective hologram, characterized in that the holographic laminate is pressed onto the ultra-thin transparent film while transferring the heat and pressure at the same time using a stamper. The method of claim 1, further comprising: forming an embossed reflective hologram layer under the ultra-thin ultra-transparent film during the first process; Prepare a holographic laminate in which a base film layer, a primer layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer are sequentially formed, and set the adhesive layer of the holographic laminate toward the bottom of the ultra-thin ultra-transparent film. Method of manufacturing a sunglass having a decorative reflective hologram, characterized in that for laminating. The method of claim 1, further comprising: forming an embossed reflective hologram layer under the ultra-thin ultra-transparent film during the first process; It is to prepare a holographic laminate in which a base film layer, a transparent metal layer, an embossed reflective display hologram, and an adhesive layer are sequentially formed, and the adhesive layer of the holographic laminate is placed so as to face the bottom of the ultra-thin ultra-transparent film, and then laminated. A method of manufacturing a sunglass having a decorative reflective hologram characterized by the above-mentioned. Sunglasses with a decorative reflective hologram, characterized in that manufactured by the manufacturing method of claim 1 to claim 4.