JPS62283384A - Card and method for recording and reproducing its information - Google Patents

Abstract

PURPOSE:To superpose individual reproduced image and to make reading of information impossible even if the whole face of a hologram is illuminated by reproduction light by recording plural different information to the specified parts of a hologram. CONSTITUTION:Holograms 10, 20, 30 are provided at the positions of arrangement according to the inherent information of a card recorded on a card substrate 1. Plural reproduced images are recorded in these holograms divided to different parts, and when each part is illuminated by reproduction light, individual reproduced images are formed. However, when the whole face of holograms are illuminated, plural reproduced images are formed, and recognition of individual reproduced image is impossible. Inherent information of the card is recorded in individual reproduced image as pattern information of combination of the shape, number and position of arrangement of images constituting the reproduced image.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to technology for preventing counterfeiting of cards such as ID cards, credit cards, bank cards, check cards, and IC cards. In particular, the present invention relates to a card in which card-specific information for preventing counterfeiting is recorded as a reproduced hologram image, and a method for recording and reproducing the information.

(Prior Art) Conventionally, in a magnetic card, card-specific information such as a password is recorded on a magnetic stripe provided on the surface of the card. The information recorded in this way is U'j
Under the influence of external magnetic fields, changes may be lost and information may be confused, or it may be easily rewritten and misused using commonly available magnetic read/write devices, and information security may be lacking. was there. For this reason, various methods have been proposed to prevent counterfeiting of such cards, and one of them has been a method of providing a hologram with unique information. In this method, illumination light is applied to a hologram provided on the card surface, and the spots appearing at any point on the line of reflected or transmitted light are read as information. There was a risk that the information could be easily read by being played back, and the amount of information that could be recorded was also limited.

(Object of the Invention) The present invention has been made in view of the above-mentioned disadvantages, and aims to provide a card having card-specific information that cannot be easily forged, and a method for recording and reproducing the information.

(Summary of the Invention) The present invention contemplates recording information not as bits of a reconstructed image of a hologram, but as bits of a reconstructed image reconstructed from a plurality of different parts of a hologram. If pattern information based on the combination of shape, number, and arrangement position is recorded together with information on the arrangement position of the reproduced image on the card, the recorded information cannot be easily read and cannot be rewritten. The present invention was achieved by discovering that this is impossible.

That is, the present invention provides a card characterized in that a hologram that reproduces reproduced images corresponding to card-specific information from a plurality of different parts of the hologram is provided on the surface of the card substrate at array positions according to the information, The shape of an image that constitutes a reproduced image in which card patency information recorded on the card is reproduced from multiple different parts of the hologram;
The hologram is recorded as combination information of pattern information based on a combination of number and arrangement position and information on the arrangement position of the reproduced image on the card, and the parts of the hologram in which the reproduced image of the hologram is recorded are sequentially illuminated with reproduction light. The present invention provides an information recording and reproducing method for reading recorded information.

(Example) Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a plan view of the card of the present invention.

A hologram 10, a hologram 20, and a hologram 30 are provided at array positions according to card-specific information recorded on the card substrate 1.

In these holograms, multiple reconstructed images are recorded separately in different parts, and if each part is illuminated with reproduction light, an individual reconstructed image is reproduced, but if the entire surface of the hologram is illuminated, multiple reconstructed images are recorded. It is impossible to recognize individual reproduced images by playing them simultaneously, and each reproduced image has card-specific information ￥U that determines the shape, number, and arrangement position of the images that make up the reproduced image. It is recorded as pattern information.

The method for creating such a hologram is to prepare an i3 original for creating a hologram in which the unique information of the card to be recorded is used as an image pattern, and to irradiate it with a laser beam or the like to obtain an object beam in advance. A method in which a predetermined portion is recorded on a masked photosensitive material for hologram recording to form a hologram in a portion, and this operation is sequentially repeated a necessary number of times to create a plurality of partially different holograms, and
There is a method in which a plurality of relief holograms with information recorded thereon are created by a known method, a mold for reproduction is created by joining them together as one relief hologram, and a mold is created using this to create a hologram.

As the above-mentioned hologram, a wide variety of conventionally known holograms can be used, but laser reproduction holograms such as Fuffler hologram, Fraunhofer hologram, and lensless Fourier transform hologram are particularly suitable. Nu,
It is also possible to use the above hologram with a rainbow hologram multiplexed thereon for decorative purposes, and in that case, a re-main image of the rainbow hologram can be obtained using white light.

In addition, functionally, either a reflective hologram having a light-reflecting metal thin film layer or a transparent hologram having a hologram effect layer can be used, and when a transparent hologram is used, it is possible to use a hologram that is provided on the card substrate. It has the advantage of being able to provide a hologram on top of the image, giving even more detailed information by combining the card's image information and the hologram's playback information, and also has an excellent design that does not interfere with the card's design. Become something.

A method of providing such a hologram on a card substrate is to use a reproduction mold obtained by forming a relief hologram by a known method and directly apply heat to the material forming the hologram provided on the card substrate. There are two methods: pressure processing and a transfer method using a hologram transfer sheet created using the above-mentioned reproduction mold, but in the present invention, the transfer method using a hologram transfer sheet is suitable for mass production. Preferable from the viewpoint of sex.

In other words, according to the transfer method, if 10 rolls of transfer sheets having one type of reproduced image pattern are prepared, even if the number of holograms to be provided on the card is three, the continuous transfer method allows for the reproduction of images unique to different cards. Eleven cards containing information can be easily manufactured.

FIG. 2 is a sectional view of a hologram transfer sheet used in the present invention.

A protective layer 52, a hologram forming layer 53, a reflective metal thin film layer 54 or a hologram effect layer 55, and an adhesive layer 56 are sequentially laminated on a base film 51 to form a hologram transfer sheet 50.

The base film 51 functions to increase the mechanical strength of the hologram transfer sheet 50, and its material is as follows:
Any film can be used, including polyimide, polystyrene, polyvinyl butyral, polyester, polyacrylate, polyvinyl chloride, polyurethane,
Plastic films such as polycarbonate and polymethacrylate, synthetic paper, metal films, and laminates thereof can be used.

The protective layer 52 includes a base film and a hologram forming layer 53.
It provides releasability between the hologram forming layer 53 and protects the hologram forming layer 53 after transfer, and its materials include 1. butyral resin, vinyl acetate resin, vinyl resin, acrylic resin, polyester resin, urethane. Resin, amide resin, epoxy resin, cellulose acetate resin, etc. are used, and the thickness is 1 to 10 μm.

The hologram forming layer 53 is formed of a single layer structure or a multilayer structure made of a photosensitive material for holograms or an embossed hologram forming material, and its thickness can be appropriately selected depending on the type, but it is usually thinned by general printing and coating methods. The thickness is 1 to 50 μm, preferably 0.5 to 5 μm.

An embossed hologram is suitable for the present invention, and the resin for forming the embossed hologram can be thermoformed when forming (duplicating) the hologram, and after forming the hologram, that is, during processing, the resin used can be It is necessary to have sufficient resistance to withstand the solvent in it. As such a resin, reactive resins such as so-called ultraviolet curable resins, electron beam curable resins, thermosetting resins, and natural curable resins may be used. Especially when considering productivity, resins that are cured by ultraviolet rays or electron beams are suitable.

Specifically, for example, methyl (meth)acrylate, [
Note that the term (meth)acrylate includes both acrylate and methacrylate. The same applies hereafter], ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, L-butyl (meth)acrylate, isomyl (meth)acrylate, ncrohexyl (meth)acrylate, 2- Ethylhequinle (meth)
Acrylate, ethylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, hexanediol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, trimethylolpropane di(meth)acrylate, pentaerythritol tri(meth)acrylate Acrylate, pentaerythritol (meth)acrylate, dipentaerythritol hexa(meth)acrylate, ethylene glycol diglycidyl ether di(meth)acrylate, polyethylene glycol di(meth)acrylate, propylene glycol diglycidyl ether di(meth)acrylate,
Sorbitol tetraglycidyl ether tetra(meth)
A monomer having a radically polymerizable unsaturated group such as acrylate may be used.

Furthermore, as the ultraviolet ray or electron beam curable resin having aging formability, the following methods fat to fd can be used for polymers obtained by polymerizing or copolymerizing the following compounds (1) to (8).
A radical-polymerizable unsaturated group introduced by l is used.

Monomer having il+hydroxyl group: N-methylol (meth)
Acrylamide, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, etc.

(2) Monomer having a carboxyl group = (meth)acrylic acid, (meth)acryloyloxyethyl monosuccinate, etc.

(3) Monomer nigericidyl (meth) having an epoxy group
Azilylate et al.

(4) Monomers having an aziridinyl group; 2-aziridinylethyl (meth)acrylate, allyl 2-aziridinylpropionate, etc.

(5) Monomers having amino groups: (meth)acrylamide, diaseptone (meth)acrylamide, dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, etc.

(6) Monomer having a sulfone group: 2-(meth)acrylamido-2-methylpropanesulfonic acid, etc.

(7) Monomer having an isocyanate group; addition of a diisocyanate such as a 1 mole to 1 mole adduct of 2.4-toluenoisocyanate and 2-hydroxyethyl (meth)acrylate and a radically polymerizable monomer having active hydrogen things etc.

) Furthermore, we can adjust the glass transition point of the above copolymer and improve the physical properties of the cured film! (1) In order to obtain the desired results, the above compound can be copolymerized with the following monomers that can be copolymerized with this compound. Examples of such copolymerizable monomers include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, and L-butyl (meth)acrylate. ) acrylate, isoamyl (meth)acrylate, cyclohexynyl (meth)acrylate, 2-ethylhexynyl (meth)acrylate, and the like.

Next, the polymer obtained as described above is reacted with the method described below (al to idl) to introduce a radically polymerizable unsaturated group to obtain an ultraviolet or electron beam curable resin.

(In the case of a polymer or copolymer of a monomer having an al water f11 group, a monomer having a carboxyl group such as (meth)acrylic acid is subjected to a condensation reaction.

+bl In the case of a polymer or copolymer of a monomer having a carboxyl group or a sulfone group, the monomer having a hydroxyl group as described in in is subjected to a condensation reaction.

(c) In the case of a polymer or copolymer of a monomer having an epoxy group, an isocyanate group, or an aziridinyl group, the above-mentioned it form having a hydroxyl group or a monomer having a carboxyl group is added.

In the case of a polymer or copolymer of a monomer having an idl hydroxyl group or a carboxyl group, a monomer having an epoxy group or an lt form or diisocyanate compound having an aziridinyl group and a hydroxyl group-containing acrylic acid ester monomer. An addition reaction may be carried out using 1 mole of the adduct.

Furthermore, the above-mentioned monomer and the above-mentioned thermoformable ultraviolet ray or electron beam curable resin can be mixed and used.

The above materials can be sufficiently cured by electron beam irradiation, but when curing by ultraviolet irradiation, benzoin ethers such as benzoquinone, benzoin, and benzoin methyl ether, and halogenated acetophenones are used as sensitizers. A material that generates radicals when irradiated with ultraviolet rays can also be used.

Furthermore, by incorporating appropriate dyes and pigments into these resins, it is possible to color the hologram layer 53 to make it translucent. The dye is preferably in the form of an oil-soluble metal complex salt having a cloud number of 10% or less as measured by a haze meter, such as 1-2 type azo metal complex dye, 1-1
Azu type metal complex dyes, metal phthalonate dyes, and organic base salts thereof can be used. The pigment preferably has a particle diameter of 1/2 or less of the wavelength of light, for example,
Taisei Kako Co., Ltd. Nokotrans Yellow, HF Chip 4B
The surface of the hologram forming layer 53 is patterned with a fine unevenness pattern with a pitch of 0.5 to 10.0 mm by embossing to create a reproduced image corresponding to card patency information using reproduction light.
It is formed in a shape with a height difference of about 1 to 2 μm and a height difference of about 0.01 to 2 μm.

On the hologram forming layer 53, a reflective metal 1IL1 layer 54 is formed when the hologram is a reflective type, and a hologram effect layer 55 is formed when the hologram is a transparent type.

The reflective metal thin film layer 54 provides reflective properties to the hologram Ji53, and is made of Cr, Ti, Fe, C01NI,
Cu, Ag, Au, Ge, AI.

Mg5Sb, Pb, Pd, Cd, Bi,, Sn.

It is formed using metals such as Se, In, Cra, Rh, sonooxides, nitrides, etc. alone or in combination of two or more. Among these metals, AI, Cr, Ni, Ag,
Au, etc. are particularly preferred, and the film thickness is 10 to 10.00.
0λ, preferably 200 to 2.00OA.

The hologram effect layer 55 exhibits a hologram effect in combination with the hologram forming layer 53, and also functions not to hide the underlying layer.

The material of the hologram effect layer 55 can be any light-transmitting material that can produce the hologram effect. For example, a transparent material with a refractive index different from that of the hologram forming layer, a reflective material with a thickness of 200A or less, etc. Examples include a thin metal film layer. In the former case, the refractive index may be larger or smaller than that of the hologram forming layer, but the difference in refractive index is 0.1
It is preferably 065 or more, more preferably 065 or more. According to experiments conducted by the present inventors, it is optimal that the value is larger than 1.0. By providing transparent thin film layers having different refractive indexes in this manner, a hologram is expressed and the underlying layer is not hidden.

In the latter case, although it is a reflective metal thin film layer, since the thickness is 200 mm or less, the light wave transmission rate is high, and therefore, it exhibits the effect of producing a hologram effect as well as the effect of not concealing the transparent portion. Also, by setting the film thickness to 200λ or less,
It also eliminates the unnatural appearance of the high-brightness silver-gray color seen in the past.

As the material of the thin film layer, for example, the following materials (11 to (6)) can be used.

(1) Transparent continuous thin film with a higher refractive index than the hologram forming layer.There are two types of transparent thin film: one that is transparent in the visible region and one that is transparent in the infrared or ultraviolet region.The former is shown in Table 1, and the latter is shown in Table 2. In the table, n indicates the refractive index (hereinafter, (2
) to (5).)

Table 1 Visible region transparent body material Material 5btSs 3. OSiO2,0 Fez O* 2.7 1nOz 2.0
PbO2,6Y2O31,9 ZnSe 2.6 TiO1,9CdS
2.6 That 1.9Big 0
3 2.4 Size Oz 1.9Ti0z
2. 3 PbFz 1.
8PbCl□ 2. 3 Cdt O
s1. 8CeOt 2. 2
MgO1,7Taxes 2. 2
Al2O21,6ZnS 2.2
LaF3 1.6Zn0 2. I
CeFz 1.6CdO2,IN
dF, 1.6Ndz Ol 2.
I S ioz 1. 5Sb20h
2. O5ins 1. 5 second
Table Infrared or ultraviolet region transparent material (ort n Cd55 3.5 CdTe 2.6 G e 4.0 ~ 4.4Hr02
2.2 PbTe 5.6 Si 3.4 Te 4,9 TICI 2.6 ZnTe 2. 8 (2) Table 3 shows transparent ferroelectric materials having a higher refractive index than the hologram forming layer.

Table 3 Material n CuC12,0 CuBr 2.2 GaAs 3.3~3.6 Ga P 3.3~3.5 N4CH! , 1.6 LiNbOz 2.3 LiTa0. 2.2 B a T r Oi 2-4 S r T i O32,4 KTaOx 2.2 (3) A transparent continuous thin film having a lower refractive index than the hologram forming layer is shown in FIG.

Table 4 Material n LiF 1.4 MgFz 1.4 3NaF -AIFz t, 4AIF,
1.4NaF
1. 3(,a F2
1.3(4) A reflective metal thin film anti-1·i metal 'a'i film with a thickness of 200A or less has a complex refraction,
The complex refractive index: n is expressed as n=n −iK. n represents the refractive index, and K represents the absorption coefficient. Anti-11 used in this invention
The materials of the metallic thin film are shown in Table 5, and the above n and K are also shown in the same table.

Table 5 Material n K Be 2.7 0.9 Mgo, 6 6.1 Ca O, 38, 1 Cr 3.3 1.3 Mn 2.5 1.3 Cu O, 72, 4 Ag O, 13 ,3 AI O,85,3 Sb 3.0 1.6Pd
1.9 1.3Ni 1.
8 1. 8SrO,63,2Ba0. 9 1. 7La
1. 8 1. 9Ce
1. 7 1. 4Au Ol 3
2, 4 Other materials include Sn, In, Te
, Fe, Co, Zn, Ge, Pb, Cd, Bi, Se
, Ga, Rb, etc. can be used. Further, oxides, nitrides, etc. of the metals listed above can also be used, and metals, oxides, nitrides, etc. thereof can be used alone or in combination of two or more of them.

(5) A resin having a different refractive index from the hologram forming layer may have a larger or smaller refractive index than the hologram forming layer. Examples of these are shown in Table 6.

Table 6 Resin Polytetrafluoroethylene 1.35 amount 5 Lichlorotrifluoroethylene 1.43 Vinyl acetate resin
1.46 polyethylene
1.52 Polypropylene 1.4
9 methyl methacrylate l, 49 nylon 1.53 polystyrene
1.60 polyvinylidene chloride
1.62 vinyl butyral resin l, 4
8 Vinyl formal resin 1.50 Polyvinyl chloride 1.53 Polyester resin
1.55 carbolic acid formalin resin
L, 60 In addition to the above, general synthetic resins can be used, but resins that have a large refractive index difference with the hologram forming layer are particularly preferred.

(6) Laminate formed by appropriately combining the materials (1) to (5) above The combinations of the materials (1) to (5) above are arbitrary;
Further, the vertical positional relationship of each layer in the layer structure is arbitrarily selected.

Among the thin film layers (1) to (6) above, the thickness of the thin film layer (4) is 200A or less, but the thickness of the thin film layers (1) to (3) and (5) and (6) is Any transparent region of the material that forms the thin film is sufficient, and generally the range is 10 to 1OO00.
A is preferable, and more preferably 100 to 5000A.

As a method for forming the hologram effect 1855 in the hologram forming layer 54, the 'ilJ IFJ layer is
- (4), general thin film forming methods such as vacuum evaporation method, sputtering method, reactive sputtering method, ion blating method, electric plating method etc. can be used, and the thin film layer is If the material is (5), a general coating method or the like can be used.

When the thin film layer is made of the material mentioned in (6) above, the above-mentioned means and methods can be used in combination as appropriate.

Note that in the case of the material (5) above, it does not have to be a thin film as long as it is a transparent material (although, as another embodiment of the present invention, a resin layer having a thickness greater than a thin film may be provided in the hologram forming layer.

The adhesive layer 56 is for firmly adhering the hologram to the card, and its material and quality may be conventional adhesives such as acrylic resin, urethane resin, amide resin, epoxy resin, rubber resin, fluoromer resin, etc. A wide variety of known materials can be used, and the film thickness is preferably 0.1 to 50 μm, preferably 1 to 10 μm.

Further, in the hologram transfer cartridge 50 according to the present invention, in order to increase the adhesiveness between the hologram forming layer 53 and the protective layer 52 and to increase the durability of the hologram forming layer 53, hardening acrylic resin, cellulose resin, An overprint made of vinyl resin or the like may be provided between the hologram forming layer 53 and the protective layer 52. Furthermore, in order to improve the adhesion between the hologram forming layer 53 and the adhesive layer 56, an anchor layer made of vinyl chloride-vinyl acetate copolymer, acrylic resin, urethane resin, etc. is attached to the hologram forming layer 53 and the adhesive layer. 56.

Hologram transfer 7-50 formed as described above
are stacked in such a way that the adhesive layer is in contact with the surface of the card base material at an arrangement position that matches the unique information of the card, and after heating and pressing, the base film is peeled off and the hologram is transferred to the card to obtain the card of the present invention. Can be done.

Next, a method for recording and reproducing information on a card according to the present invention will be explained.

FIGS. 3(A) and 3(B) are explanatory diagrams showing an example of the information recording method of the present invention.

In FIG. 3(A), 100, 200, and 300 respectively indicate portions where the reproduced image of the hologram 10 provided on the card substrate 1 is recorded, and the portion 100 has the reproduced image 100.
1.1002.1003, but the reconstructed image 20 is in the part 200.
01.2002, but the reproduced image 3001°3 is in the part 300.
002.3003.3004 is recorded.

As shown in FIG. 3(B), these reconstructed images are composed of images that are a collection of squares, and information is transmitted by the combination of shapes, numbers, and arrangement positions of these squares.
For example, the playback images 1001, 1002.1003 have the password, the playback images 2001.2002 have the name of the owner of the card, and the playback images 3001.3002.3003.
In 3004, those CHF credits are recorded as follows. Although not shown here, information is also recorded in the hologram 20 and the hologram 30 in the same manner as in the hologram 10.

Such a hologram is formed on the card at an array position that matches the card-specific information, and information recorded by the reproduced image and information recorded by the positional relationship of each reproduced image with respect to the card (for example, , In this embodiment, hologram 10, hologram 20, and hologram 30 are provided from the right end of the card, and this arrangement does not mean a specific card issuer. recorded in

In the present invention, since information is recorded as described above, the number of holograms provided on the card may be one or more, the formation position is not limited, and the reproduced image is composed of The shape, number, and arrangement position of the images are not limited; for example, if the pattern of the reproduced image is recorded as a bar code, it can be handled as a bar code 171 such as JAN code 1', NW-7 code, etc.

As mentioned above, unique information is recorded on the card by forming a hologram on the surface of the card, but the recorded unique information does not appear as a reproduced image under white light, so the card is simply It only looks like something that has a thin, plasti, or plastic film.

However, if the part of the hologram formed on the surface of the card base material where one reproduced image is recorded is illuminated with parallel laser light, etc., the hologram will form the reproduced image onto the light receiving section provided at the reproduction position. A reproduced image equivalent to a 13-year-old original is projected, and the unique information of the card can be read, allowing the authenticity of the cart to be determined. However, what happens when the entire surface of the hologram is illuminated? Since 3i reproduced images are reproduced simultaneously, each reproduced image cannot be recognized and information cannot be read.

FIG. 4 is an explanatory diagram illustrating a method of reading information when a laser is used as a light source for hologram reproduction.

When the laser beam emitted from the light source 60 is enlarged to the required size by the enlarging optical system and illuminates the portion 100 of the hologram 10 on the card in which the reproduced images 1001, +002.1003 are recorded, the hologram is imaged. , Ii of HoIcogram! A reproduced image fool, +
002.1003 is projected, and the information recorded by the combination pattern of the shape, number, and arrangement position of the squares constituting the reproduced image and the positional information (U) of the reproduced image with respect to the card are read.Next, Sequentially, the card is shifted and only parts 200 and 300 are illuminated to read the information recorded on the hologram 10, and then the hologram 2
0. By performing a similar operation (not shown) on the holograms 30 and reading the information recorded on each, the cart-specific information recorded on the card can be read and the authenticity of the card can be determined. .

The light sources 60 and L7 used for the above reading may be of any type as long as they can reproduce holograms, such as discharge lamps with narrow emission wavelengths such as mercury lamps, sodium lamps, and metal halide lamps, gas lasers, and semiconductor lasers. In addition, EL panels, light emitting diodes, etc. can also be used.

The light receiving section 70 includes phototubes, photoelectron intensifiers (FL tubes, image tubes, SEC tubes, SIT tubes, image pickup tubes such as 5゛shicon and Sachicon, MOS type, CID type, (': CD type, BBD type, etc.).
Solid-state image pickup tubes such as type, PCD type, etc. can be used, but in particular,
It is preferable to use a CCD image sensor, a photodiode display, a phototransistor display, etc. constructed from these.

(Effects of the Invention) The card-specific information recorded on the card of the present invention includes pattern information based on a combination of the shape, number, and arrangement position of the images constituting the reproduced image of the hologram, and information on the arrangement position of the reproduced image on the card. This information cannot be easily read because it is recorded as combination information.

In addition, in the card of the present invention, multiple pieces of different information are recorded in predetermined parts of the hologram, so even if the entire surface of the hologram is illuminated with reproduction light, the individual reproduced images overlap and the information cannot be read. It has a highly effective anti-counterfeiting effect.

Further, since information is easily imparted to the card of the present invention by a transfer method using a hologram transfer sheet, it can be manufactured with good mass productivity.

[Brief explanation of the drawing]

Figure 1 is a plan view of a card according to an embodiment of the present invention, Figure 2 is a cross-sectional view of a hologram transfer sheet used in the present invention, and Figures 3 (A) and (B) are illustrations of the information recording method of the present invention. Explanatory diagram,
FIG. 4 is an explanatory diagram of the information reading method of the present invention. 1... Card substrate l0120.30... Hologram 50... Hologram transfer sheet 51... Base film 52... Protective layer 53... Hologram forming layer 54... Reflective metal thin film layer 55... Hologram effect layer 56...Adhesive layer 100...Hologram IO reproduced image 1001.1002
．． Part 200 where 1°O3 is recorded... Hologram IO reproduced image 20o! , 2002
Part 300 where is recorded... Hologram LO reproduced image 3001.3002
．． 3゜03.3004 is recorded +001.1002.1003...Reproduced image of hologram 2001.2002...Reproduced image of hologram 30
01.3002.3003.3oo4... Reproduced image of hologram 60... Light source 70... Light receiving section 1 Figure 3 (A) (B)

Claims (5)

[Claims] (1) A card characterized in that a hologram that reproduces a reproduced image corresponding to card-specific information from a plurality of different parts of the hologram is provided on the surface of a card substrate at array positions according to the information. (2) The card according to claim (1), wherein the hologram is a transparent hologram. (3) The card according to claim (1) or (2), wherein the hologram is combined with a rainbow hologram for decoration. (4) The card according to any one of claims (1) to (3), wherein the reproduced image of the hologram is a barcode. (5) The card-specific information includes pattern information based on a combination of the shape, number, and arrangement position of the images that constitute the reproduced image reproduced from a plurality of different parts of the hologram on the card, and the arrangement of the reproduced image on the card. A method for recording and reproducing information, characterized in that the recorded information is read by sequentially illuminating parts of a hologram in which the reproduced image of the hologram is recorded as combined information with position information with reproduction light. .