JP2011093153A - Forgery preventing pattern, forgery preventing pattern forming body, slit film, forgery preventive pattern forming method, and authenticity discrimination implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for easily determining the presence/absence of forgery prevention by using a forgery preventive pattern processed based on ideographic characters and a simple auxiliary implement. <P>SOLUTION: Ideographic characters 7 that are meaning-readable digits, characters, marks, figures are used as reference characters 8. The forgery preventive pattern 1 formed by juxtaposing a plurality of objects 4 consisting of minified flat characters unreadable with naked eyes obtained by compressing the reference characters 8 in one fixed direction at a given ratio at equal spaces; and a slit film 5 created based on the object sending length determined by the space between the one object 4 forming the forgery preventive pattern 1 and the object, are combined for use. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention prevents counterfeiting of securities such as gift certificates and admission tickets, publicly issued documents such as resident's card and seal registration certificate, and other printed materials that require security. An anti-counterfeit pattern used in the above, an anti-counterfeit pattern forming body in which the anti-counterfeit pattern is attached to these printing bodies such as paper and thin plate plastic, and an anti-counterfeit pattern forming method for forming the anti-counterfeit pattern The present invention also relates to a slit film capable of discriminating the authenticity of a forgery-preventing pattern, and further relates to a true / false discriminating tool for discriminating authenticity from a forgery-preventing pattern and a slit film.

  Securities and other documents that require security must be protected against counterfeiting by applying watermarks, micro characters, hidden characters, printing with special ink, or adding holograms to the paper. I am trying.

  Among these various anti-counterfeiting means, there is a technique for generating an image by generating a moire by overlapping a predetermined film on a printed matter on which an anti-counterfeit pattern is formed. For example, Japanese Patent Laid-Open No. 2004-25740 (Patent Document 1) discloses a light transmission in which a plurality of parallel lines are formed on a printed matter in which parallel lines and other parallel lines that form a predetermined angle with the parallel lines are formed. When the protective films are stacked, moire occurs and an image appears.

  In addition, as another technique for displaying an image by overlapping a printed material with a predetermined film, for example, Japanese Patent Laid-Open No. 10-230684 (Patent Document 2) describes a line on a printed material on which an image is formed by a phase modulation method. When the discriminating tool formed with a pattern (a large number of straight lines drawn in parallel at equal intervals) is overlapped, the image formed on the printed matter and the line-like pattern formed on the discriminating tool are integrated. A technique for displaying an image is described.

  Further, as a technique for easily knowing whether or not a hidden character has been made by using a simple auxiliary tool, for example, Japanese Utility Model Publication No. 54-138700 (Patent Document 3) describes a background consisting of lines. When a transparent sheet with a predetermined line is superimposed on a lottery ticket having a hidden line formed with a line with a predetermined angle with respect to this line, A technique that becomes clearly visible is disclosed.

JP 2004-25740 A Japanese Patent Laid-Open No. 10-230684 Japanese Utility Model Publication No. 54-138700

  However, in the technique described in Japanese Patent Application Laid-Open No. 2004-25740 (Patent Document 1), an image is displayed with the occurrence of moire. There is a problem that it is difficult to understand the expression of the image.

  Further, in the technique described in Japanese Patent Laid-Open No. 10-230664 (Patent Document 2), a printed matter must be formed by a special method called a phase modulation method, and the position is precisely controlled in a fine region. Therefore, it is difficult to form a desired pattern on the printed matter. In addition, since an image is formed only after the printed portion of the printed material and the predetermined portion of the discriminating tool are combined, there is also a problem that the image does not appear unless the discriminating tool is superimposed on a predetermined position of the printed material.

  Furthermore, in the technique described in Japanese Utility Model Publication No. 54-138700 (Patent Document 3), it is necessary to overlap the lottery ticket and the transparent sheet at a certain position in this technique as well. It may be difficult. In addition, since the boundary between the hidden character and the background is clear, the hidden character may be recognized if it is viewed without using an auxiliary tool.

  The present invention has been completed in the presence of such conventional techniques, and is a technique for determining whether or not forgery is prevented by using a simple auxiliary tool. In addition, it is a technique that does not require strict usage of the assisting tool, that it is easy to form a forgery prevention pattern, and in the absence of the assisting tool, it is not easy to know whether to prevent forgery.

In other words, reduced flat characters that are illegible with the naked eye, obtained by compressing the reference characters in a certain direction at a specified rate, using ideographic characters whose meanings are readable as numbers, characters, symbols, figures, etc. This is a forgery prevention pattern in which a plurality of objects are arranged at equal intervals in the compression direction.
This anti-counterfeiting pattern cannot be read with the naked eye obtained by compressing the reference characters in a certain direction in a certain direction with ideographic characters whose meanings and meanings are readable as numbers, characters, symbols and figures. It is made up of objects made up of reduced flattened characters. An object is a reduced flat character obtained by compressing a character, etc., whose meaning content can be discriminated at a predetermined rate in a certain direction, based on ideographic characters such as numbers, characters, symbols, figures, etc. whose semantic content can be discriminated. Therefore, its production is easy. In addition, since this object is flatter than a normal ideogram, it is not an ideogram in a normal display form simply by magnifying it with a loupe. Therefore, the forgery prevention effect is high.
In addition, since the anti-counterfeit pattern has a plurality of objects arranged at equal intervals, it is easy to pattern, and even if the meaning content is unknown, it is easy to find defective products such as printing mistakes.
Note that the “ideographic characters” mentioned here are characters having meaning contents, but are not limited to characters. For example, symbols and numbers, graphics such as illustrations that can recall specific meaning contents such as cars and televisions, and the like are also included. Further, “can be discriminated with the naked eye” means that it can be discriminated by visual observation without using a magnifier such as a loupe or a microscope.

  Moreover, the forgery prevention pattern formation body provided with the said forgery prevention pattern is provided. Since the anti-counterfeit pattern molded body is provided with the anti-counterfeit pattern, the authenticity can be easily evaluated as compared with the case where the anti-counterfeit pattern is not attached. Such anti-counterfeit pattern forming bodies include papers printed with the anti-counterfeit patterns, securities such as gift certificates and admission tickets using such papers, other documents, and materials other than paper, such as plastic materials. Includes completed cards and identification cards. In addition, the anti-counterfeiting pattern can be formed so small that it cannot be visually recognized by the naked eye. Etc.

  The anti-counterfeit pattern or the anti-counterfeit pattern forming body itself contributes to anti-counterfeiting, but a predetermined ideogram can be imaged by using it together with a predetermined slit film. Such a slit film is a slit film having a constant width slit and a light blocking portion having a constant width and wider than the slit, and is adjacent to the object in the fixed direction from the object for forming the forgery prevention pattern. When the virtual feed area is set by dividing the object feed length into equal intervals by setting the length of the distance to the other object to be added in that direction as the object feed length, A slit film that images an ideogram by overlaying the anti-counterfeit pattern, wherein some of the regions are formed in a slit as a light-transmitting portion, and the remaining virtual divided regions are shielded from light and formed in the light-shielding portion. It is.

By using the slit film as an auxiliary tool, the forgery prevention pattern can image hidden ideograms without enlarging the forgery prevention pattern.
The slit film has a slit that can be seen on the other side of the slit film and a light-shielding portion that cannot be seen on the other side of the slit film. The slit width is constant, and a constant width that is wider than this width. The light-shielding portions having the are formed alternately. In addition, the slit width and the width of the light shielding portion are determined based on the virtual divided area. The virtual divided area is the object feed length that is the sum of the length of one object that forms the anti-counterfeiting pattern and the interval to the next object adjacent to that object in the compressed direction. It is a plurality of virtual areas obtained by dividing the object feed length at equal intervals. In other words, since the slit width and the width of the light-shielding part are formed based on the virtual divided region, different parts of the object divided regularly can be seen from each slit, so that an ideographic character that forms the object is imaged It can be done.
In setting the object feed length, the interval between objects may be zero. In this specification, claims, etc., when referring to “width” and “length”, unless otherwise specified, the compression direction when compressing an ideographic character serving as a reference when creating an object is used. It shall refer to the width and length in the same direction. This direction is referred to as an “object compression direction”.

  With respect to the slit film, the length of one virtual divided region of the plurality of virtual divided regions can be the same as the length of the interval from one object to another adjacent object. Since the length of one virtual divided area of the plurality of virtual divided areas is the same as the distance from one object to another adjacent object, it is obtained when the anti-counterfeit pattern is viewed through the slit film The image can be made closer to the reference character.

  Furthermore, for slit film, the number of divisions in which the object feed length is divided at equal intervals in the object compression direction is defined as the object feed value, and the number of virtual divided areas constituting one slit and one light shielding portion is defined as the slit feed value. When defined as: slit feed value> object feed value. Since the slit feed value is greater than the object feed value, when the anti-counterfeit pattern is viewed through the slit film, the image to be displayed appears as a normal image.

  In addition, for slit film, the number of divisions in which the object feed length is divided at equal intervals in the object compression direction is defined as the object feed value, and the number of virtual divided areas constituting one slit and one light-shielding part is slit-fed. When defined as a value, the slit feed value <the object feed value can also be established. Since the slit feed value is smaller than the object feed value, when the anti-counterfeit pattern is viewed through the slit film, the image to be displayed appears as a reverse image (inverted image).

Furthermore, reduced flatness that is illegible with the naked eye obtained by compressing the reference character in a certain direction at a predetermined rate using ideographic characters whose meanings are readable numbers, characters, symbols, figures, etc. as reference characters. Provided is a forgery prevention pattern forming method for forming a forgery prevention pattern in which a plurality of objects made up of characters are arranged at equal intervals in the compression direction.
According to such an anti-counterfeit pattern forming method, it is possible to produce an anti-counterfeit pattern that is easy to produce an anti-counterfeit pattern and is difficult to distinguish with the naked eye.

  And the authenticity discrimination tool which consists of a predetermined forgery prevention pattern and a slit film is provided. Since this authenticity determination tool is an authenticity determination tool composed of the above-described anti-counterfeit pattern and a slit film, the authenticity cannot be easily determined with the naked eye. On the other hand, the authenticity can be easily determined with the naked eye by using the slit film together. Can be determined.

  According to the anti-counterfeit pattern of the present invention and the anti-counterfeit pattern forming body provided with the anti-counterfeit pattern, it is easy to authenticate by using a predetermined slit film even though it is difficult to determine the authenticity with the naked eye. Can be determined. And according to the forgery prevention pattern formation method of this invention, such a forgery prevention pattern and a forgery prevention pattern formation body can be produced easily.

Further, according to the slit film of the present invention, the authenticity of the predetermined forgery prevention pattern can be easily identified with the naked eye.
Further, according to the authenticity determination tool of the present invention, the tolerance of the angle of the slit film to be superimposed on the anti-counterfeit pattern is wide, and it is determined whether the anti-counterfeit pattern or the anti-counterfeit pattern forming body is difficult to understand. Is easy to handle and has excellent handleability.

It is a top view of a forgery prevention pattern formation body. It is a top view of a slit film. It is a character pattern which consists of an ideographic character imaged when the anti-counterfeit pattern of FIG. 1 is seen through the slit film of FIG. It is an ideographic character (reference character) that is the basis for creating another object. It is explanatory drawing which shows the object production from the reference | standard character of FIG. It is explanatory drawing which shows the structure of the forgery prevention pattern produced from the reference | standard character of FIG. It is a block block diagram of the forgery prevention pattern manufacturing apparatus. It is a flowchart which shows the formation method of a forgery prevention pattern formation body. It is explanatory drawing which shows the relationship between the forgery prevention pattern of FIG. 6, and a virtual division area. It is a top view of the slit film used for the forgery prevention pattern of FIG. It is a top view which shows the state which accumulated the slit film of FIG. 10 on the forgery prevention pattern of FIG. It is a flowchart which shows the formation method of a slit film. It is explanatory drawing which shows the structure of another forgery prevention pattern, and FIG. 13 (B) displays a virtual division area in FIG. 13 (A). 14A is a plan view showing a state in which another slit film is superimposed on the anti-counterfeit pattern of FIG. 13A, and FIG. 14B is an ideogram imaged from FIG. 14A. It is a character. FIG. 15 (A) is a plan view showing a state in which a slit film having a large slit feed value is superimposed on the forgery prevention pattern of FIG. 13 (A), and FIG. 15 (B) is an image from FIG. 15 (A). Is an ideographic character. FIG. 16A is a plan view showing a state in which a slit film having a larger slit feed value is superimposed on the anti-counterfeit pattern of FIG. 13A, and FIG. 16B is a view from FIG. 16A. Imaginary image to be imaged. FIG. 17 (A) is a plan view showing a state in which a slit film having a small slit feed value is superimposed on the forgery prevention pattern of FIG. 13 (A), and FIG. 17 (B) is an image from FIG. 17 (A). Is an ideographic character. FIG. 18 (A) is a plan view showing a state in which a slit film having a smaller slit feed value is superimposed on the anti-counterfeit pattern of FIG. 13 (A), and FIG. 18 (B) is obtained from FIG. 18 (A). Imaginary image to be imaged. It is explanatory drawing which shows the relationship between another forgery prevention pattern and a virtual division area. FIG. 20 is a plan view showing a state in which another slit film is overlaid on the forgery prevention pattern of FIG. 19. FIG. 20 is a plan view showing a state in which another slit film is superimposed on the forgery prevention pattern of FIG. 19. It is explanatory drawing which shows the relationship between the virtual division area with the forgery prevention pattern of FIG. 6, and another slit film. It is explanatory drawing which shows another forgery prevention pattern.

  The present invention will be described in more detail with reference to the drawings. In the following description, components common to the embodiments are denoted by the same reference numerals, and redundant description is omitted. In addition, duplicate descriptions of raw materials, manufacturing methods, operational effects, and the like common to the embodiments are omitted.

First Embodiment (FIGS. 1 to 11) :
One embodiment of an anti-counterfeit pattern and an anti-counterfeit pattern forming body having the anti-counterfeit pattern is shown in FIG.
The anti-counterfeiting pattern 1 shown in FIG. 1 is formed by printing on a printing body 2 such as a gift certificate or the like such as paper or a card that requires anti-counterfeiting, printing by a printer, printing by a printing machine, etc. The pattern forming body 3 is configured.
The individual patterns constituting the anti-counterfeit pattern 1 are formed from reduced flat characters obtained by compressing ideographic characters, such as numbers, characters, symbols, figures, etc. whose meanings are readable, in a predetermined direction at a predetermined ratio. The meaning is printed in such a small size that it cannot be read with the naked eye. Here, this reduced flat character is called an “object”.
Since the line drawing of the object 4 is thin and dense, it can only be seen by the naked eye as a simple line drawing pattern, but when the anti-counterfeit pattern 1 in FIG. 1 is viewed through a predetermined slit film 5 as shown in FIG. As shown in FIG. 3, a character pattern 6 in which ideographic characters 7 that can be recognized as “T”, “O”, “K”, “Y”, and “O” are vertically arranged is imaged. That is, what is seen only by the naked eye when the object 4 shown in FIG. 1 is seen as a line drawing pattern is viewed through the slit film shown in FIG. 2 to express the image of “TOKYO” shown in FIG. It can be made.

The forgery prevention pattern and the shape of the object constituting the forgery prevention pattern will be described in detail below by taking one ideogram “A” instead of “TOKYO” for convenience of explanation.
The letter “A” shown in FIG. 4 is an image that can be recalled when a forgery prevention pattern is viewed through a slit film, and is the ideographic letter 17 because it means the letter “A”. Further, this ideographic character “A” is also referred to as a reference character 18 because it serves as a reference for producing an object constituting the forgery prevention pattern.

In order to create an object constituting the anti-counterfeit pattern from the reference character 18, as shown in FIG. 5, each point constituting the reference character 18 is 50% to 99% in the vertical direction (vertical direction) of the character, preferably It is formed by reducing at a rate of 90% to 97%, more preferably 94% to 95%. In other words, the height of the perpendicular line from the SS reference line shown in FIG. 5 to each point constituting the reference character 18 is reduced at the predetermined ratio. Thus, the object 14 is obtained. Here, the object 14 appears as a reduced flat character of the character “A”.
Next, as shown in FIG. 6, the objects 14 are vertically arranged with a predetermined interval. The vertical arrangement of the objects 14 thus obtained becomes the forgery prevention pattern 11.
The general size of the counterfeit pattern 11 is that the vertical length of the object 14 is 200 μm to 600 μm, preferably 330 μm to 360 μm, and the distance between the objects 14 and 14 in the object compression direction is 0 μm to 200 μm, preferably 100 μm. ˜125 μm. However, the interval between the objects 14 and 14 is 35% or less of the length of the object 14 in the vertical direction.
Incidentally, although the object 14 shown in FIG. 6 has a flat shape, it can be visually recognized as the letter “A”. This is because it is enlarged and displayed for the convenience of explanation, and is usually reduced to a size that can only be seen as a line drawing with the naked eye. In FIG. 6, five objects 14 having the character “A” are displayed, but the number of characters arranged vertically can be arbitrarily set. This can be applied to other drawings, and the portions shown in other drawings can be regarded as a part of an anti-counterfeit pattern or slit film actually formed.

  The case where the reference character 18 is the character “A” has been described above. If the same thing is performed on the character “TOKYO” shown in FIG. 3 instead of the character “A”, the forgery prevention shown in FIG. Pattern 1 is obtained. Here, an example of a method for forming anti-counterfeit patterns 1 and 11 is summarized based on the anti-counterfeit pattern manufacturing apparatus shown in FIG. 7 and the flowchart shown in FIG.

  7 includes a computer 102, a display device 103, an input device 104, and a printer device 105 connected to the computer 102. The computer 102 includes hardware such as a CPU, RAM, ROM, hard disk, and various interfaces, and can operate an application program 106, a video driver program 107, a printer driver program 108, and the like.

  The user selects reference characters 8 and 18 to be ideographic characters 7 and 17 from the input device 104 in accordance with the application program 106 (FIG. 8, S11). Further, when the user inputs the reduction direction, the reduction magnification, and the like of the reference characters 8 and 18 according to various information displayed on the display device 103 based on the video driver program 107, the application program 106 follows the instructions of the user and the objects 4, 14 And the forgery prevention patterns 1 and 11 are produced (FIG. 8, S12). Then, the printer driver program 108 performs processing for printing the anti-counterfeit patterns 1 and 11 on the substrate 2 by the printer device 105, and the printer device 105 forms the anti-counterfeit patterns 1 and 11 on the substrate 2 ( FIG. 8, S13).

Next, the slit film 15 necessary to image the reference character 18 from the anti-counterfeit pattern 11 will be described. First, the anti-counterfeit pattern 11 is virtually divided into a predetermined size for the production of the slit film 15. It will be necessary. This will be described in detail below.
First, in the forgery prevention pattern 11 shown in FIG. 6, the height AT of one object 14 and the interval MT to another object 14 adjacent to the one object 14 are matched with the vertical direction of the object 14. This length is set as the object feed length OL.
In the forgery prevention pattern 11 shown in FIG. 6, as shown in FIG. 9, one length obtained by dividing the height AT of the object 14 into five equal parts and the interval MT between the objects 14 and 14 are the same length. In this way, a plurality of objects 14 are arranged in the vertical direction.

  Now, as shown in FIG. 9, a region obtained by dividing the object 14 into five equal parts and a region between the objects 14 and 14 are defined as a “virtual divided region” 14a. Further, the number of divisions when the object feed length OL is divided at equal intervals, in other words, the number of virtual divided areas constituting the object feed length is defined as “object feed value”. In the example of FIG. 9, since the object feed length OL is equally divided into 6, the object feed value is “6”.

As shown in FIG. 10, the slit film 15 is covered with a transparent portion where the other side of the slit film 15 becomes an elongated slit 15 a visible through the slit film 15, and is covered with the slit 15 a so as to be shielded from light. And a light shielding portion 15b that is impossible.
The length of the slit 15a and the light shielding portion 15b (the vertical length in FIG. 10) of the slit film 15 has the following relationship with the virtual divided region 14a of the forgery prevention pattern 11 shown in FIG.
That is, the transparent portion that becomes the slit 15a has a height corresponding to one virtual divided region, and the light shielding portion 15b has a height corresponding to six virtual divided regions. In the slit film 15, the slits 15a and the light shielding portions 15b are regularly and alternately formed.
Here, the sum of the number of virtual divided regions forming one slit 15a and the number of virtual divided regions forming one light shielding portion 15b is defined as a “slit feed value”. In the example of the slit film 15 shown in FIG. 10, the slit feed value is “7”. This is because the number of virtual divided areas forming one slit 15a is “1” and the number of virtual divided areas forming one light shielding portion 15b is “6”.
Such a slit film 15 can be formed by light-shielding a predetermined portion of a transparent resin film and providing a light-shielding portion 15b. Alternatively, the slit film 15 may be formed by cutting out the slit 15a using a light-shielding resin film. it can. Furthermore, in addition to a so-called thin plate-like resin sheet, the resin sheet may be formed from a thick material such as non-flexible glass.

  In the slit film 15 shown in FIG. 10, the number of the light shielding portions 12 b is four. However, since the number of the objects 14 constituting the forgery prevention pattern 11 is not limited, the objects 14 arranged vertically in the forgery prevention pattern 11. The number of the light shielding portions 12b and the slits 15a can be set as appropriate according to the number of the light shielding portions.

  FIG. 11 shows a state in which the slit film 15 of FIG. 10 is superimposed on the forgery prevention pattern 11 of FIG. The forgery prevention pattern 11 viewed through the slit film 15 is not the same as the reference character 18 shown in FIG. 4, but an ideographic character “A” similar to the reference character 18 can be imaged by the illusion of human eyes.

An example of the method of forming the slit film 15 is summarized as follows based on the forgery prevention pattern manufacturing apparatus shown in FIG. 7 and the flowchart shown in FIG.
The user selects the reference characters 8 and 18 and the character pattern 6 to be the ideographic characters 7 and 17 from the input device 104 according to the application program 106 (FIG. 12, S21). The application program 106 sets the virtual divided region 14a based on the selected reference characters 8 and 18 and the character pattern 6, and determines the regions of the slit 15a and the light shielding portion 15b that form the slit film 15 (S22 in FIG. 12). Then, the printer driver program 108 performs processing for printing the light shielding portion 15b on the resin film by the printer device 105, and the printer device 105 forms the light shielding portion 15b on the resin film (FIG. 12, S23). Thus, the slit film 15 is obtained.

Modification [FIGS. 13 and 14] :
The interval between the objects 14 and 14 can be changed as appropriate.
FIG. 13A shows a forgery prevention pattern 21 in which the interval between the objects 14 and 14 is narrower than that of the forgery prevention pattern 11 shown in FIG. However, the height AT of the object 14 does not change.
In the forgery prevention pattern 21 shown in FIG. 13A, as shown in FIG. 13B, the interval MT between the objects 14 and 14 and the height AT of one object 14 are divided into seven equal parts in the vertical direction. The objects 14 are arranged in the vertical direction so that the length is the same. Therefore, the object feed value of the forgery prevention pattern 21 is “8”.
In the slit film 25 (see FIG. 14) used in combination with the forgery prevention pattern 21, the transparent portion that becomes the slit 25a has a height corresponding to one of the virtual divided regions, and the light shielding portion 25b corresponds to the virtual divided region. It has a height of eight. The slits 25a and the light shielding portions 25b are regularly and alternately formed. In this case, the slit feed value of the slit film 25 is “9”.

FIG. 14A shows a state in which the slit film 25 is superimposed on the forgery prevention pattern 21. The resulting image is an ideographic character 27 shown in FIG. 14B, and is imaged as a character that is slightly longer than the reference character 18 shown in FIG.
As described above, even if the objects have the same object height AT, the size of the image (ideogram) to be recalled can be changed by appropriately changing the object feed value and the slit feed value.

Second Embodiment (FIGS. 15 and 16) :
In the above embodiment, when the object feed value is “n”, the slit feed value is “n + 1”. However, the relationship between the object feed value and the slit feed value can be changed as appropriate.
FIG. 15A shows a state in which the slit film 35 with the slit feed value “10” is overlaid on the forgery prevention pattern 21 of FIG. 13 with the object feed value “8”.
The ideogram 37 imaged from FIG. 15A is imaged smaller in the vertical direction than the ideogram 27 as shown in FIG.
Similarly, FIG. 16A shows a state in which the slit film 45 with the slit feed value “11” is overlaid on the forgery prevention pattern 21 of FIG. The ideogram 47 imaged from FIG. 16A is imaged smaller in the vertical direction than the ideogram 37 as shown in FIG.
Note that the slit feed value can be made even larger than these examples, but the larger the slit feed value, the smaller the ideogram will be imaged and the harder it will be to image, so the object feed value and the slit feed The difference in values is preferably “2”, more preferably “1”.

Third Embodiment (FIGS. 17 and 18) :
It is also possible to make the slit feed value smaller than the object feed value. In such cases, an inverted ideogram is imaged.
FIG. 17A shows a state in which the slit film 55 with the slit feed value “7” is superimposed on the forgery prevention pattern 21 of FIG. 13 with the object feed value “8”. The ideogram 57 imaged from FIG. 17A appears as a fallen image (inverted image) that is imaged by being inverted as shown in FIG. 17B. Its size is the same as that of the ideogram 27 shown in FIG.
Similarly, FIG. 18A shows a state in which a slit film 65 with a slit feed value of “6” is overlaid on the forgery prevention pattern 21 of FIG. The ideogram 67 imaged from FIG. 18A is imaged smaller in the vertical direction than the ideogram 57 as shown in FIG.
Although the slit feed value can be made smaller than these examples, the smaller the slit feed value, the smaller the ideogram will be imaged, and the harder it will be to image the ideogram. The difference between the feed values is preferably “−2”, and more preferably “−1”.
Also, if the object feed value and the slit feed value are equal, the shape visually recognized through the slit is the same for any slit, and ideographic characters cannot be imaged. For this reason, the object feed value and the slit feed value are different from each other.

Fourth Embodiment (FIGS. 19 to 21) :
In the embodiments described so far, the interval between the objects 14 and 14 and the interval of one when the object 14 is equally divided are the same size, but it is not necessarily the same.
For example, in the anti-counterfeit pattern 31 shown in FIG. 19, the object feed length OL, which is the sum of the height AT of the object 14 and the interval MT between the objects 14 and 14, is divided into six equal intervals and the virtual divided region 14c. However, the width of one virtual divided region 14c and the interval MT between the objects 14 and 14 are not equal.
An ideographic character can be imaged also with respect to such a forgery prevention pattern 31 by producing a slit film based on a virtual divided region.

FIG. 20 shows a state in which the slit film 75 with the slit feed value “7” is overlaid on the forgery prevention pattern 31 with the object feed value “6” shown in FIG. FIG. 21 shows a state when the slit film 85 with the slit feed value “8” is overlapped with the forgery prevention pattern 31 with the object feed value “6” shown in FIG.
From these examples, it can be seen that the ideogram “A” is imaged.

Fifth Embodiment (FIG. 22) :
In the embodiment described so far, the slit film and the light-shielding portion constituting the slit film were produced with one virtual divided region per slit and a plurality of virtual divided regions per light-shielded portion. A plurality of virtual divided regions can be assigned to the slits. However, it is necessary to increase the number of virtual divided areas assigned to the light-shielding portion rather than the number of virtual divided areas assigned to the slits. This is because if the number of virtual divided areas assigned to the light-shielding portion is made smaller than or equal to the number of virtual divided areas assigned to the slits, the ideographic characters are difficult to image or cannot be imaged.
FIG. 22 shows a state where a new slit film 95 is superimposed on the forgery prevention pattern 11. The slit film 95 divides the object height AT into five equal parts, and among the virtual divided areas 14a in which the interval MT between the objects 14 and 14 is equally divided, two virtual divided areas 14a are defined as slits 95a. The five virtual divided areas 14a are formed as the light-shielding portions 95b, and the slit feed value is “7”.
From these examples, it can be seen that the ideogram “A” is imaged.

Sixth Embodiment [FIG. 23] :
The anti-counterfeit pattern 41 shown in FIG. 23 is formed by superimposing the anti-counterfeit pattern 1 of FIG. 1 and the anti-counterfeit pattern 1 obtained by rotating the anti-counterfeit pattern 1 by 90 ° counterclockwise.
In this anti-counterfeit pattern 41, as in FIG. 2, that is, if the slit film 5 is placed in the direction in which the slits are arranged in the vertical direction, the image “TOKYO”, which is a character pattern, is recognized from the reduced flat characters arranged in the vertical direction. Can do. On the other hand, if the slit film 5 is placed in the direction in which the slits are arranged in the horizontal direction, the image “TOKYO” that is a character pattern can be recognized from the reduced flat characters arranged in the horizontal direction. In this forgery prevention pattern 41, since the reduced flat characters arranged in the vertical direction and the reduced flat characters arranged in the horizontal direction are combined, the character pattern can be read from the reduced flat characters arranged in the respective directions.

Therefore, objects having different character patterns can be provided in the vertical direction and the horizontal direction. It is also possible to change the size and interval of the object in each direction. Moreover, since each image expression is secured in each direction, it is preferable to change the color tone of the object in each direction.
Furthermore, in this embodiment, the two anti-counterfeit patterns 1 and 1 intersect at an angle of 90 °, but this angle is not limited to 90 ° and may be an arbitrary angle.

Other variations :
In order to form an object from a reference character representing an ideogram, the reference character can be reduced not only in the vertical direction but also in the horizontal direction or in any other direction.

  The anti-counterfeit pattern of the present invention is mainly applied to securities and cards that need anti-counterfeiting. However, the meaning of the pattern is unclear by using a predetermined slit film. By utilizing the characteristics that characters and the like appear, it can be used for various purposes that are not related to anti-counterfeiting, such as prize drawings and quiz books.

1,11,21,31,41 Anti-counterfeiting pattern 2 Substrate 3 Anti-counterfeiting pattern forming body 4,14 Object (reduced flat character)
14a, 14b, 14c Virtual division area 5, 15, 25, 35, 45, 55, 65, 75, 85 Slit film 15a, 25a Slit (transparent part)
15b, 25b Light-shielding portion 6 Character pattern 7, 17, 27, 37, 47, 57, 67 Idiomatic characters 8, 18 Reference character 101 Anti-counterfeit pattern manufacturing device 102 Computer 103 Display device 104 Input device 105 Printer device 106 Application program 107 Video Driver program 108 Printer driver program
AT object height (length)
Interval between MT objects OL Object feed length

Claims (8)

  An ideographic character whose semantic content is legible, such as numbers, letters, symbols, figures, etc. A forgery prevention pattern in which a plurality of objects are arranged at equal intervals in the compression direction.   A forgery prevention pattern forming body provided with the forgery prevention pattern according to claim 1. In a slit film having a constant width slit and light-shielding portions of a wider width and constant width than this slit,
The object feed length is a length obtained by adding together one object forming the anti-counterfeiting pattern according to claim 1 and an interval from the one object to another object adjacent in the certain direction in the direction, When a plurality of virtual divided areas are set by dividing the object feed length at equal intervals, some of these virtual divided areas are formed as slits as light-transmitting parts, and the remaining virtual divided areas are shielded from light The slit film which makes an image of an ideographic character overlap on the said forgery prevention pattern characterized by formed in the light-shielding part.   The slit film according to claim 3, wherein a length of one virtual divided region of the plurality of virtual divided regions is the same as an interval from one object to another adjacent object.   When the number of divisions obtained by dividing the object feed length at regular intervals in the fixed direction is defined as an object feed value, and the number of virtual divided areas constituting one slit and one light shielding portion is defined as a slit feed value The slit film according to claim 3 or 4, wherein slit feed value> object feed value.   When the number of divisions obtained by dividing the object feed length at regular intervals in the fixed direction is defined as an object feed value, and the number of virtual divided areas constituting one slit and one light shielding portion is defined as a slit feed value The slit film according to claim 3, wherein slit feed value <object feed value.   An ideographic character whose meaning is readable numbers, characters, symbols, figures, etc. is used as a reference character, and the reference character is a reduced flat character that cannot be read with the naked eye by compressing the reference character at a predetermined rate in a certain direction. A forgery prevention pattern forming method for forming a forgery prevention pattern in which a plurality of objects are arranged at equal intervals in the compression direction.   The authenticity discrimination tool which consists of the forgery prevention pattern of Claim 1, and the slit film of any one of Claims 3-6.

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