JP2007160521A - Printed material having stereoreproductive image printing part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed material, on which a clear stereo-image is reproduced by printing through the decomposition of object colors into two colors in order to use a stereo-image printed part as an antifalsifying means for fear of the lowering of the clarity of the stereo-image due to too many printing colors though a color stereoprinted material and a platemaking method, with which object colors can be reproduced faithfully, are provided. <P>SOLUTION: This printed material includes a stereoreproductive image printed part to be judged with a judging tool on either side of the printed material in order to judge the authenticity of the printed material. The stereoreproductive image printed part is reproduced as the stereo-image with the judging tool. The printed material is so constituted as to have the stereoreproductive image printed part, which is dividingly printed at least in blue base printing colors and in red base printing colors. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printed matter having a stereoscopic reproduction image printing unit for authenticity determination.

Examples of the stereoscopic display method include an anaglyph method and a lenticular method.
In the anaglyph method, one image is divided into an image for the left eye and an image for the right eye, and each is printed with a different color. When the printed material is viewed through different color filters with the left and right eyes, only the image for the left eye can be seen with the left eye, and only the image for the right eye can be seen with the right eye.
As a result, a stereoscopic image is visually recognized.
The left-eye image and the right-eye image can be taken simultaneously by a stereo camera or two cameras installed at an appropriate interval.
By viewing the printed portion printed in two colors through the red filter, the portion printed with the blue ink is visually recognized as black, and the portion printed with the red ink is not visually recognized. On the contrary, when the printed portion printed in two colors is viewed through the blue filter, the portion printed with the red ink is visually recognized as black, and the portion printed with the blue ink is not visually recognized.
Thus, the stereoscopic reproduction image printing unit is visually recognized in three dimensions.

  In the above-described method, the target image is decomposed into two colors of red and blue to express the image three-dimensionally, but is not expressed in full color. Therefore, in order to three-dimensionally express a printed material in full color, a “plate making method and a color three-dimensional printed material” has been proposed (see, for example, Patent Document 1).

JP 2000-56411 A

The technique described in Patent Document 1 provides a color three-dimensional printed material that can faithfully reproduce an object color and its plate making method. However, there are too many printing colors, and three-dimensional image printing is performed through a filter. There is a drawback that the sharpness of the stereoscopic image is lowered when the part is visually recognized.
In the present invention, the three-dimensional image printing unit is used as a forgery prevention means, and an object is to reproduce a clear three-dimensional image on a printed matter by separating the image into two colors and printing.

  In order to achieve the above object, the first invention of a printed matter having a three-dimensional reproduction image printing unit according to the present invention uses a discriminator on any surface of the printed matter to determine the authenticity of the printed matter. The three-dimensional reproduction image printing unit, which is reproduced as a three-dimensional image by the discriminator, is printed with at least a blue printing color and a red printing color. It is a printing part which has the obtained image.

  According to a second aspect of the present invention, in the first aspect, the printed matter is a stock certificate, a gift certificate, a gift certificate, a boarding pass, a credit card, a cash card, various prepaid cards, an ID card, a pass ticket, a commuter pass, a ticket, It is one of various tickets, nameplates, various authentication labels.

Like this invention, it is a printed matter which has the image printing part for three-dimensional reproduction discriminated by a discriminator on any surface of the printed matter, and the said three-dimensional reproduction image printing unit is reproduced as a three-dimensional image by the discriminator. At least, it is a printing section that has images printed in blue and red printing colors, so that counterfeiting of gift certificates and various cards can be prevented, and the printing cost for that is also A commercially available discriminator can be used as the discriminator used for stereoscopic image reproduction because it is cheap and can be easily introduced.
Moreover, since only the two-color printing unit is added, the security can be effectively enhanced by combining with another security technology such as a hologram or a combination with another pattern.

Hereinafter, with reference to drawings, the printed matter which has the image reproduction part for three-dimensional reproduction | regeneration of this invention is demonstrated.
FIG. 1 is a diagram for explaining an example of a gift certificate having a three-dimensional reproduction image printing unit according to the present invention, FIG. 2 is a diagram for explaining a method for photographing a three-dimensional reproduction image, and FIG. FIG. 4 is a diagram for explaining a stereoscopic reproduction image, FIG. 4 is a diagram for explaining a printed stereoscopic reproduction image, and FIG. 5 is a diagram for explaining a stereoscopic image reproduced by a discriminator. .

With reference to FIG. 1, an example of the gift certificate which has the image reproduction part for three-dimensional reproduction | regeneration of this invention is demonstrated.
In FIG. 1, a gift certificate is applied as an example of a printed matter having an image printing unit for three-dimensional reproduction, but stock certificates, gift certificates, boarding passes, credit cards, cash cards, various types that require counterfeiting, alteration, and falsification prevention The present invention may be applied to any prepaid card, ID card, pass ticket, commuter pass, ticket, various tickets, nameplate, various authentication labels, and the like.

On one side of a printed matter (hereinafter referred to as a gift certificate) 1 is printed gift certificate information 13 such as “gift certificate” characters indicating that the printed matter is a gift certificate and “10,000 yen” characters indicating the amount of money. Has been.
On the surface of the gift certificate 1, in addition to the gift certificate information 13 described above, a three-dimensional reproduction image printing unit 12 for preventing forgery, alteration, and falsification is provided.

Although not shown in the figure, the three-dimensional reproduction image printing unit 12 is printed with a print design related to a gift certificate, and a three-dimensional reproduction image 11 for preventing forgery, alteration, and falsification is printed therein.
The symbol printed on the three-dimensional reproduction image printing unit 12 may be a printed symbol relating to the above-mentioned gift certificate, or a hologram or the like may be transferred thereto.
The printed design for the gift certificate may be a printed design for camouflage that is intentionally designed and printed in red and blue.

With reference to FIG. 2, a method for capturing a stereoscopic reproduction image will be described.
An image to be a printed document is taken with a special camera so that the printed stereoscopic reproduction image has a stereoscopic effect when viewed through the discriminator. The special camera is a stereo camera provided with two lenses, or an imaging device 3 that can be set at any interval and can operate two cameras simultaneously.
The imaging device 3 includes a left imaging device 31 and a right imaging device 32.
Thus, the captured image is printed on two separate films.
The greater the distance between the left imaging device 31 and the right imaging device 32 of the imaging device 3, the greater the stereoscopic effect when viewed with a discriminator.
On the other hand, regarding the arrangement of the stereoscopic image subject 2, the positions of the front subject 21 and the rear subject 22 of the stereoscopic image subject 2 are set so that when the printed stereoscopic reproduction image is viewed with a discriminator, the stereoscopic image subject 2 looks more stereoscopic. The distance from the imaging device 3 is shifted to a position that is far away from the far position.

With reference to FIG. 3, the captured image for stereoscopic reproduction will be described.
The stereoscopic reproduction image 112 indicated by “R” on the left side of the figure is an image taken by the right imaging device 32 of the imaging device 3. In addition, the stereoscopic reproduction image 111 shown on the right side “L” in the drawing is an image taken by the left imaging device 31 of the imaging device 3.
It can be seen that the glass-shaped front subject of the stereoscopic image subject 2 is shot separately on the left and right of the bottle-shaped rear subject.

The three-dimensional reproduction image printed with reference to FIGS. 3 and 4 will be described.
When producing a printing plate, the three-dimensional reproduction image 112 shown in FIG. 3 is produced as a printing plate for red printing, and the three-dimensional reproduction image 111 shown in FIG. 3 is produced as a printing plate for blue printing.
Conversely, the stereoscopic reproduction image 112 may be produced as a printing plate for blue printing, and the stereoscopic reproduction image 111 may be produced as a printing plate for red printing.
The above selection is determined in relation to the positions of the blue lens and the red lens of the discriminator.

When printing on the base material of the printed matter, as shown in FIG. 4, the two three-dimensional reproduction images 112 and 111 are printed so that the bottle-shaped rear subject overlaps.
As the distance between the left imaging device 31 and the left imaging device 32 of the imaging device 3 is narrower, the left and right glass-shaped front subjects are closer to each other and printed. As a result, it is difficult to obtain a stereoscopic effect when the printed stereoscopic reproduction images 112 and 111 are viewed with a discriminator.

With reference to FIG. 5, the three-dimensional image reproduced | regenerated with a discrimination tool is demonstrated.
As the discriminator, for example, a discriminator produced in the shape of glasses is used.
A transparent red coating is applied to the left lens of the discriminator, and a transparent blue coating is applied to the right lens.
FIG. 5A shows an image 41 viewed with the left eye in the state of wearing the above-mentioned glasses, and FIG. 5C shows an image 42 viewed with the right eye.
The image 41 visually recognized by the left eye is a stereoscopic reproduction image printed in blue, and the image 42 visually recognized by the right eye is a stereoscopic reproduction image printed in red.
The three-dimensional reproduction images 112 and 111 viewed through the left and right lenses of the determination tool are viewed as an image 40 with a three-dimensional effect as shown in FIG.

When the printed matter of FIG. 4 is viewed with the above-described glasses, the red image that has passed through the red lens is visually recognized as a transparent image, and the blue image is visually recognized as an image close to black.
Conversely, an image printed in blue that has passed through the blue lens is viewed as a transparent image, and an image printed in red is viewed as an image close to black.
As a result, the above-described two images are synthesized by the visually recognized brain and viewed as a stereoscopic image.

(Example)
In a magnetic card in which a magnetic recording layer was provided on the entire surface of one side of a polyester film, a three-dimensional image by an anaglyph method was printed on the opposite side.
As a discriminator, when discriminating using glasses with transparent red and blue coatings, a clear stereoscopic image was obtained, and it was discriminated that it was authentic.

  The printed matter having an image printing unit for three-dimensional reproduction according to the present invention includes stock certificates, gift certificates, gift certificates, boarding passes, credit cards, cash cards, various prepaid cards, ID cards, and passports that require forgery, alteration, and falsification prevention. , Commuter passes, tickets, various tickets, nameplates, various authentication labels, and the like.

It is a figure for demonstrating an example of the gift certificate which has the image printing part for three-dimensional reproduction | regeneration of this invention. It is a figure for demonstrating the imaging | photography method of the image for stereo reproduction | regeneration. It is a figure for demonstrating the image | photographed stereoscopic reproduction image. It is a figure for demonstrating the printed image for three-dimensional reproduction. It is a figure for demonstrating the stereo image reproduced | regenerated with a discrimination tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printed matter 2 Stereoscopic image subject 3 Imaging device 11 Stereoscopic reproduction image 12 Gift certificate pattern 13 Gift certificate information 21 Front subject 22 Rear subject 31 Left imaging device 32 Right imaging device 40 Three-dimensional image 41 Image visually recognized from left eye 42 Visually visible from right eye 111 Image for stereoscopic reproduction taken by the left imaging device 112 Image for stereoscopic reproduction taken by the right imaging device

Claims (2)

In order to determine the authenticity of the printed matter, the printed matter has a three-dimensional reproduction image printing unit that is discriminated by a discriminator on any surface of the printed matter,
The three-dimensional reproduction image printing unit is a three-dimensional reproduction unit that is reproduced as a three-dimensional image by a discriminator and has at least an image printed with a blue printing color and a red printing color. Printed matter having an image printing section for reproduction. In the printed matter having the three-dimensional reproduction image printing unit according to claim 1,
The printed material is one of stock certificates, gift certificates, gift certificates, boarding passes, credit cards, cash cards, various prepaid cards, ID cards, pass tickets, commuter passes, tickets, various tickets, nameplates, and various authentication labels. A printed matter having a three-dimensional reproduction image printing section.

Images