WO2011111948A2

WO2011111948A2 - Device for preventing forgery and falsification, and product provided with same

Info

Publication number: WO2011111948A2
Application number: PCT/KR2011/001451
Authority: WO
Inventors: 김종재; 주성현; 박병훈
Original assignee: 한국조폐공사
Priority date: 2010-03-12
Filing date: 2011-03-03
Publication date: 2011-09-15
Also published as: KR100980442B1; WO2011111948A3

Abstract

Provided is a device for preventing forgery and falsification, and a product provided with same. A device for preventing forgery and falsification according to one embodiment consists of a hologram comprising a hologram image part and a micro-image arrangement part. A predetermined hologram image is formed on the hologram image part, and the image is not particularly limited in terms of the type, size, position, and shape thereof. The micro-image arrangement part occupies the entirety or a portion of the area of the hologram, except for the area on which the hologram image is formed. A plurality of micro-images are formed on the micro-image arrangement part, wherein the micro-images are indiscernible by the naked eye, but are magnified and discernible by using a lens arrangement film having one side on which a plurality of micro spherical lenses is arranged in array form. In this case, the size of an image of the micro-image arrangement part may be substantially the same as that of a micro spherical lens of the lens arrangement film.

Description

Anti-counterfeiting device and product with same

The present invention relates to a security element, and more particularly to an anti-forgery apparatus used for identifying the authenticity of a product.

Various security elements are applied to identify the authenticity of the product. The type of security element may vary depending on the type or characteristics of the product to which the security element is applied, the size of the security element, as well as the authenticity identification method. For example, a secure element may be visually identifiable, or may be identified using ancillary equipment such as a scanner, as well as collating (eg, a unique number) with information stored or recorded elsewhere. Among them, hologram is a representative security element that can be visually identified, and hologram is used for various products such as drugs, banknotes, passports and ID cards as well as expensive famous products.

In addition to increasing the number of products to which holograms are applied as a security element, the development of counterfeit technology along with the development of digital technology and the technology of manufacturing holograms are becoming more common, and the number of finely forged holograms is increasing. . In order to cope with this, various techniques for preventing forgery and modulation of holograms are also researched and developed.

For example, a hologram with a complex and sophisticated design can be used to better identify authenticity with the naked eye. However, this not only increases the complexity of the hologram's design or pattern, but also advances the performance of commercially available digital hologram manufacturing equipment (e.g. dot-matrix), so sophisticated forged holograms are difficult to distinguish even from experts. This is emerging. Therefore, there is a limit to improving the function of the hologram based on visual identification only.

In order to overcome the limitations of the method of identifying authenticity with the naked eye, methods using other tools or equipment have been proposed. For example, there is a method of applying an encrypted pattern and reproducing it with a laser or the like to check authenticity or recognizing and determining a specific pattern included in a hologram. However, the encrypted pattern or the specific pattern itself is easily damaged by external physical and chemical influences. If they are damaged, the identification of the pattern is not easy, and even if there is no damage, a separate identification mechanism There is a disadvantage that must be used. In order to overcome these limitations, a method of using a wireless identification tag has recently been proposed, but the manufacturing cost increases because the cost of manufacturing the wireless identification tag is relatively high. In addition, as with other methods, it is only possible to use an expensive tool or equipment to recognize a wireless identification tag.

As another method, a method of applying a unique number by laser marking has been proposed. For example, a unique number is recorded with a laser on the surface of the hologram, and the authenticity is confirmed using the unique number. However, since this method requires accessing the database online or by wire every time the authenticity is checked, the authenticity check process is relatively cumbersome.

Recently, with the development of digital technology and the spread of digital equipment, hologram manufacturing technology is also becoming more common. As a result, the number of cases of forging holograms being applied as a security element continues to increase, and this increase is expected to continue thereafter. In particular, forgery and alteration of security holograms applied to ID cards (passports, resident registration cards, driver's licenses, etc.), including banknotes, have significant social confusion and economic damage. However, the hologram itself is a simple, inexpensive, and easy-to-use anti-counterfeiting device that does not need the help of complicated instruments or equipment, nor does it need to be connected and checked elsewhere via a network such as online or wired.

Therefore, one problem to be solved by the present invention is to provide forgery and alteration prevention device that is difficult to forgery, easy to determine whether authenticity, easy, quick and accurate, and relatively low manufacturing cost.

Another problem to be solved by the present invention is to provide an article having a forgery prevention device that is difficult to forge, can easily and easily determine whether or not authenticity, and has a relatively low manufacturing cost.

The anti-counterfeiting apparatus according to the embodiment relates to a hologram, and includes a hologram image unit and a fine image array unit. A predetermined hologram image is formed in the hologram image unit. In addition, the micro image array unit is an area in which microscopic unit images, which are not recognized by the naked eye, are arranged in an area other than an area in which the hologram image is formed, and when the lens array film in which the fine spherical lenses are arranged in an array form is used, an enlarged image is displayed. appear.

According to an aspect of the embodiment, the fine image array unit may be divided into a plurality of areas in which different fine unit images are arranged.

The micro image array unit may surround the hologram image unit. In addition, the size of the micro-unit image and the size of the micro-spherical lens may be substantially the same, for example, may be a size of about 10-30㎛. The plurality of fine unit images may be arranged in a predetermined pattern or array form.

An article according to one embodiment of the present invention includes a hologram as a forgery preventing device. The hologram includes a hologram image unit and a fine image arrangement unit, and a hologram image is formed in the hologram image unit. The fine image array is an area in which fine unit images that are not recognized by the naked eye are arranged in areas other than the area in which the hologram image is formed. When the fine spherical lens is arranged in an array form, an enlarged image is displayed. .

The forgery and alteration prevention apparatus according to the embodiment of the present invention can not only use the advantages of the existing hologram as it is, but also have excellent security because it can not recognize the presence of the fine image arrangement in the absence of the lens array film. And since it is possible to check the authenticity using only a simple auxiliary means in the form of film, it is possible to check forgery in an easy and convenient way and more economical. In addition, the forgery and alteration prevention apparatus according to the present invention is not only easy to imitate, but can also use the existing hologram manufacturing process as it is low manufacturing cost and can be applied to various products.

1 is a plan view showing the configuration of a forgery and alteration prevention apparatus according to an embodiment of the present invention.

2 is a cross-sectional view of an example of a lens array film.

3 is a perspective view of an example of a lens array film.

FIG. 4 is a diagram illustrating an example of an image that appears when the lens array film of FIG. 2 is disposed above the anti-falsification preventing apparatus of FIG. 1.

5 is a plan view showing the configuration of a forgery and alteration prevention apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Terms used in the present specification are terms selected in consideration of functions in the embodiments, and the meaning of the terms may vary depending on the intention or custom of the user or operator. Therefore, the meaning of the terms used in the embodiments to be described later, according to the definition if specifically defined herein, and if there is no specific definition should be interpreted to mean generally recognized by those skilled in the art.

The apparatus for preventing forgery and alteration according to the present invention relates to a hologram. The hologram is equipped with a new security element that makes it easy to quickly identify the authenticity of the hologram as well as a hologram image with different shapes depending on the viewing angle. The new security element to be added may be formed in all or a part of the area where the hologram image is not formed, and it is difficult to visually identify the contents of the security element as well as its existence. However, a new security element is a special form of pattern that can be verified using an optical singularity called the Moire Magnification phenomenon. Moiré magnification refers to the phenomenon in which a new magnified image appears when two consecutive image arrays overlap.

1 is a plan view showing an example of a hologram which is a forgery and alteration preventing apparatus according to an embodiment of the present invention. 4 is a plan view showing an example of an image shown when the lens array films 200 (see FIGS. 2 and 3), which will be described later with the hologram shown in FIG. 1, are overlapped. Squares and circles indicated by dotted lines in FIG. 1 are added to indicate the boundary of the fine image array unit 120 and are lines that do not actually appear. 1 and 4, the forgery and alteration prevention apparatus 100 includes a hologram image unit 110 and a fine image arrangement unit 120.

There is no particular limitation on the shape and size of the forgery preventing device 100, that is, the hologram. For example, the hologram may be circular or other polygonal shape as well as a rectangular shape as shown. Alternatively, as shown in FIG. 5, the hologram may have a band shape so that the hologram may be elongated in one direction.

In addition, there are no particular limitations on the position, area, shape, and number of the hologram image 110 and the fine image array 120 in the hologram 100, as well as a combination thereof. For example, the hologram image 110 may be disposed inside the forgery and alteration prevention apparatus 100 so as to be surrounded by the fine image arrangement 120 as shown. Alternatively, the micro image array unit 120 may be disposed to be surrounded by the holographic image unit 110, or the holographic image unit 110 and the micro image array unit 120 may be arranged side by side in the left and right directions, respectively, in contrast to the illustrated example. Can be. Alternatively, the fine image arrangement unit 120 may be disposed on all or a portion of the blank area where the hologram image unit 110 is not disposed in the hologram 100.

FIG. 5 is a plan view schematically showing a forgery and alteration preventing apparatus according to another embodiment of the present invention, that is, hologram 100 '(as in FIG. 1, dotted lines are merely added for convenience of description). Referring to FIG. 5, the hologram 100 ′ has a band shape as a whole, and is different from the

hologram image parts

110a and 110b and the

hologram image parts

110a and 110b in which different hologram images are formed. And fine

image arranging units

120a, 120b, and 120c in which fine images are arranged. The illustrated hologram 100 ′ is merely an example, and the hologram 100 ′ and the number and arrangement of the

holographic image units

110a and 110b and the fine

image arrangement units

120a, 120b and 120c may be changed in various forms. It is obvious to those skilled in the art.

The hologram image unit 110 indicates a portion in which the hologram image is formed in the forgery prevention apparatus 100. Although the figure shows that the hologram has a circular shape, predetermined characters are arranged therein, but this is merely exemplary. There is no particular limitation on the type of hologram image disposed on the hologram image 110, and all kinds of hologram images known to date may be used as well as newly created hologram images. For example, the hologram image disposed in the hologram image unit 110 may be one that can be identified with the naked eye only by applying a complicated and sophisticated design, or an element that can be identified through the aid of predetermined equipment such as a scanner or a laser. Or patterns may be added. Alternatively, it may be a hologram image using a wireless identification tag or a hologram image in which a unique number is recorded using a laser.

And it is apparent to those skilled in the art that the hologram of the hologram image 110 does not necessarily have a circular shape. In addition, in the case where the forgery and alteration prevention apparatus 100 is divided into three or more parts, only the hologram image part 110 occupies two or more areas, or only the fine image arrangement part 120 occupies two or more areas, or It may occupy more than one area. For example, the hologram 100 may include a plurality of holographic image parts 110, and one or more fine image arrangement parts 120 may be disposed between or in the peripheral area. Obviously, the hologram image 110 does not necessarily have the same hologram image.

In the fine image arranging unit 120, a plurality of fine images having a size not visible to the naked eye are arranged in a predetermined pattern or array form. In order not to be visually identified, the microscopic image may be an image having the largest side length of 30 μm or less, for example, 10 to 30 μm. Therefore, when viewed with the naked eye, the fine image arrangement unit 120 may appear to be nothing, as shown in FIG. 1, or may be viewed as a peripheral background of the hologram image formed in the hologram image unit 110.

There is no particular limitation on the kind of the fine images arranged in the fine image arranging unit 120. For example, a predetermined letter or word may be recorded in the fine image arranging unit 120 (see FIG. 3), or a symbol, a number, a symbol, or the like may be arranged (see FIG. 4). The fine image does not necessarily need to be one, and the fine image arrangement unit 120 may be divided into two or more regions, and different images may be arranged in each of the divided regions (see FIG. 4). However, each divided area should have an area in which the fine image can be repeated in a predetermined pattern or array form more than a predetermined number of times. This is because a repeated arrangement of characters and the like is necessary to use the moiré magnification phenomenon.

As described above, the image arranged in the fine image array unit 120 is quite fine in size. Therefore, this image cannot be formed using a printing method using an ink jet or a laser jet or a general printing technique. This image can be formed only by using an electron beam method of manufacturing a hologram disc. The method of using the electron beam is one of the methods currently used for manufacturing the original plate of the banknote hologram, in this embodiment can be applied as it is to form a fine image pattern. Therefore, in manufacturing the forgery and alteration prevention apparatus 100 according to the embodiment of the present invention, since the existing hologram manufacturing process equipment can be used as it is, no new equipment investment cost is required. However, the present embodiment is not limited to this, and does not exclude the use of other printing methods or printing methods which are developed later, so that fine images can be recorded.

The fine image formed on the fine image array unit 120 is not recognized by the naked eye, but when the lens array film 200 shown in FIGS. Recognition is possible. Here, FIG. 2 is a cross-sectional view of the lens array film 200, and FIG. 3 is a perspective view of the lens array film 300 (the fine image shown in FIG. 3 is an example shown for convenience of description).

2 and 3, the lens array film 200 is a plurality of fine spherical lenses 220 arranged in an array form on the base film 210, and the base film 210 and the fine spherical lenses 220. ) Are all formed of a transparent material. The base film 210 may be formed of a transparent polymer such as, for example, transparent polyethylene terephthlate (PET). The fine spherical lens 220 may have a size of 30 μm or less, for example, 10 to 30 μm.

The micro spherical lens 220 may be fabricated by photolithography or electron beam lithography, and then exposed to ultraviolet rays or electron beams to form a pattern on the photosensitive medium, and then may implement a spherical lens shape by a thermal reflow method. Can be. The shape method of the fine spherical lens 220 is a method generally used in a semiconductor manufacturing process, and in the embodiment of the present invention, the fine spherical lens 220 is formed by applying the semiconductor manufacturing process. However, the present embodiment is not limited thereto.

The size of each of the fine spherical lenses 220 is substantially the same as the size of the fine image formed in the fine image array unit 120, in order to use the moiré magnification phenomenon. That is, the present invention uses an optical specific phenomenon called moire magnification that appears when the lens array film 200 is positioned above the anti-falsification preventing apparatus 100. More specifically, the user arranges the lens array film 200 spaced apart a predetermined distance upward from the forgery prevention device 100, where the distance is a focal length of the fine spherical lens of the lens array film 200 or From this it is within a predetermined distance range. As such, when the lens array film 200 is disposed at a predetermined interval on the anti-falsification preventing device 100 and the size of each of the fine spherical lenses 200 arranged in an array form and the size of each of the fine images are substantially the same. By the fine spherical lenses arranged in an array form on the lens array film 200, the fine images arranged in the fine image array unit 120 are enlarged and appear in three dimensions. Using this, fine images arranged in the fine image arrangement unit 120 can be identified by the naked eye.

In the forgery and alteration prevention apparatus 100 according to the embodiment of the present invention, the lens array film 200 is not integrally formed with each other, and the lens array film 200 is used only as an auxiliary tool when checking whether or not forgery. Therefore, since the image formed in the fine image array unit 120 cannot be recognized in the absence of the lens array film 200, the fine image array unit 120 is visually applied to the forgery and alteration prevention device 100. I do not know if it is. Therefore, the forgery and alteration prevention apparatus 100 is improved in security compared to the existing forgery and alteration prevention apparatus.

The lens array film 200 is simply disposed to overlap the upper end of the anti-forgery and alteration prevention device 100 having a hologram, and the fine images of the fine image array unit 120 appear in an enlarged three-dimensional image. Therefore, the forgery and alteration prevention apparatus 100 according to the embodiment of the present invention can check the authenticity by using only a simple auxiliary means in the form of a film, it is possible to check whether the forgery in an easy and simple way and more economical.

In addition, the micro-images arranged in the micro-image array unit 120 are very fine and fine to implement the holographic disc as an electron beam. Therefore, imitation is not easy because it cannot be realized by general laser or dot matrix equipment on the market. Therefore, the forgery and alteration prevention apparatus 100 according to the embodiment of the present invention further improves security. In addition, since the manufacturing process used in the existing hologram manufacturing process is used as it is, not only the manufacturing cost is low but additional cost does not occur due to new facility investment.

In addition, the forgery and alteration prevention apparatus 100 may be manufactured in a thin thickness in the form of a film as well as having flexibility. Therefore, the forgery and alteration prevention apparatus 100 can be widely applied without limitation to the type or form of the adherend. For example, it can be applied to various products such as medicines, banknotes, passports, various identification cards as well as expensive famous products. In addition, the adherend does not necessarily need to be flat, and the forgery and alteration prevention apparatus 100 may be attached to a curved surface.

The above description is only an embodiment of the present invention, and the technical idea of the present invention should not be construed as being limited by this embodiment. The technical idea of the present invention should be specified only by the invention described in the claims. Therefore, it will be apparent to those skilled in the art that the above-described embodiments may be implemented in various forms without departing from the spirit of the present invention.

The present invention can be applied to products such as banknotes, checks, ID cards, passports, medicines, etc., as well as expensive famous products that require authenticity identification of products to prevent forgery and alteration.

Claims

A hologram image unit on which a hologram image is formed; And

As a plurality of fine unit images arranged in an array in a region other than the region where the hologram imager is formed, an enlarged image may be identified by using a lens array film having a plurality of fine spherical lenses arranged in an array on one surface thereof. Anti-counterfeiting device comprising a fine image array.
The method of claim 1,

And the fine image arrangement unit is divided into a plurality of regions in which different fine unit images are arranged.
The method according to claim 1 or 2,

And the fine image arrangement unit surrounds the hologram image unit.
The method according to claim 1 or 2,

The size of the micro-unit image and the size of the micro-spherical lens is 10-30㎛ each of the forgery preventing device, characterized in that the same size with each other.
The method according to claim 1 or 2,

And the plurality of fine unit images are arranged in an array.
An article of any one selected from medicines, banknotes, passports, and identification cards with the forgery and alteration preventing device of claim 1.