Information communication system

Abstract

To make it easier to avoid contact between an IC card or the like containing an IC chip and a communication unit.SOLUTION: An information communication system 10 includes: a communication unit 15 that communicates information with an IC chip 5C arranged at a communication position 15P; and a hologram sheet 20 overlaid on the communication unit 15. The hologram sheet 20 includes a volume reflection hologram layer 25. The hologram sheet 20 forms an image 30 at an imaging position 30P by being irradiated with light. The communication position 15P is spaced apart from the communication unit 15. The imaging position 30P is located between the communication position 15P and the hologram sheet 20.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to an information and communication system. [Background technology]

[0002] For example, there is known an information and communication system that can communicate information between an IC card including an IC chip and a communication unit such as a card reader unit. By holding the IC card over a reading position away from the communication unit, information can be communicated without contact between the communication unit and the IC card. For example, Patent Document 1 describes a security gate having an information and communication system. The security gate opens the door when it is confirmed that personal information, etc. recorded on the IC card held over the communication unit is correct. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-085004 A Summary of the Invention [Problem to be solved by the invention]

[0004] Although an IC card including an IC chip and a communication unit can communicate information without contact, users often bring the IC card and the communication unit into contact with each other. Contact between the IC card and the communication unit can cause the IC card or the communication unit to break or be damaged due to the impact of the contact, and can also cause bacteria, viruses, etc. to spread through the contact. The present disclosure aims to make it easier to avoid contact between an IC card including an IC chip and the communication unit. [Means for solving the problem]

[0005] The information and communication system of the present disclosure includes: A communication unit that communicates information with an IC chip disposed at a communication position; a hologram sheet superimposed on the communication unit, The hologram sheet includes a volume reflection hologram layer, The hologram sheet forms an image at an imaging position by being irradiated with light, the communication location is separate from the communication unit, The imaging position is located between the communication position and the hologram sheet. Effect of the Invention

[0006] According to the present disclosure, it is possible to easily avoid contact between an IC card or the like that includes an IC chip and a communication unit. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing a gate device as an example of a device to which an information communication system is applied. [Diagram 2] FIG. 2 is a front view showing an IC card including an IC chip for communicating information with an information communication system. [Diagram 3] FIG. 3 is a front view of the information communication system. [Figure 4] FIG. 4 is a cross-sectional view of the information communication system taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a first example of an image projected by a hologram sheet. [Figure 6] FIG. 6 is a second example of an image projected by a hologram sheet. [Figure 7] FIG. 7 is a third example of an image projected by a hologram sheet. [Figure 8] FIG. 8 is a fourth example of an image projected by a hologram sheet. [Figure 9] FIG. 9 is a cross-sectional view of a hologram sheet included in the information communication system. [Figure 10] FIG. 10 is a diagram for explaining a method for manufacturing a volume reflection hologram layer included in a hologram sheet. [Figure 11] FIG. 11 is a diagram for explaining a method for manufacturing a volume reflection hologram layer included in a hologram sheet. [Figure 12]FIG. 12 is a diagram for explaining a method for manufacturing a volume reflection hologram layer included in a hologram sheet. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In the drawings attached to this specification, the scale and the aspect ratio may be appropriately changed and exaggerated from those of the actual objects for the convenience of illustration and understanding. Configurations shown in some drawings may be omitted in other drawings.

[0009] In this specification, terms specifying shapes or geometric conditions and their degrees, such as "parallel," "orthogonal," and "same," as well as values ​​of lengths and angles, are not limited to their strict meanings, but are interpreted to include a range within which similar functions can be expected.

[0010] In this specification, terms such as "sheet," "film," and "plate" are not distinguished from one another solely on the basis of differences in name. For example, a "transparent plate" cannot be distinguished from a member called a "transparent film" or a "transparent sheet" solely on the basis of differences in name.

[0011] In this specification, the normal direction of a sheet-like member refers to the normal direction to the sheet surface of the target sheet-like member. Also, the "sheet surface" refers to the surface that coincides with the target sheet-like member when the target sheet-like member is viewed overall and in a global perspective. The same applies when "sheet" is read as "film" or "plate", etc.

[0012] In this specification, when multiple upper limit candidates and multiple lower limit candidates are listed for a parameter, the parameter may be a numerical range that combines any one of the upper limit candidates and any one of the lower limit candidates.

[0013] One embodiment of the present disclosure relates to the following [1] to

[12] . [1] A communication unit that communicates information with an IC chip disposed at a communication position; a hologram sheet superimposed on the communication unit, The hologram sheet includes a volume reflection hologram layer, The hologram sheet forms an image at an imaging position by being irradiated with light, the communication location is separate from the communication unit, An information and communication system, wherein the imaging position is located between the communication position and the hologram sheet. [2] The sheet surface of the hologram sheet has an n-fold symmetric shape, The information and communication system according to [1], wherein n is 5 or greater. [3] The information and communication system described in [1] or [2], wherein the sheet surface of the hologram sheet is shaped so as to be able to contain a circle with a diameter of 9 cm or more. [4] The hologram sheet includes a self-adhesive layer, The information and communication system according to any one of [1] to [3], wherein the self-adhesive layer is in contact with the communication unit. [5] An information and communication system according to any one of [1] to [4], wherein the angle of the direction in which the hologram sheet forms the image with respect to the normal direction of the hologram sheet is 45° or more. [6] An information and communication system described in any one of [1] to [5], wherein the incident angle of light through which the hologram sheet forms the image is 45° or greater. [7] An information and communication system described in any one of [1] to [6], wherein the light irradiated to the hologram sheet is ambient light. [8] The information and communication system described in [7], wherein the ambient light is white. [9] A hologram sheet that is overlaid on a communication section that communicates information with an IC chip, the hologram sheet including a volume reflection hologram layer.

[10] The sheet surface of the hologram sheet has an n-fold symmetric shape, The hologram sheet according to [9], wherein n is 5 or more.

[11] A hologram sheet according to [9] or

[10] , wherein the sheet surface of the hologram sheet is shaped so as to be able to contain a circle having a diameter of 9 cm or more.

[12] The hologram sheet according to any one of [9] to

[11] , further comprising a self-adhesive layer.

[0014] FIG. 1 shows a gate device 1 as an example of a device to which an information communication system 10 according to an embodiment is applied. The gate device 1 is installed at a facility where only specific persons can enter, such as a ticket gate at a station, a public facility such as a hospital or a library, an amusement facility such as a movie theater, an accommodation facility, or a service entrance of a company. FIG. 2 shows an IC card 5 including an IC chip 5C. The IC card 5 is owned by a specific person. For example, information related to the owner is recorded in the IC chip 5C. By holding the IC card 5 over the information communication system 10, the IC chip 5C and the information communication system 10 communicate information. The IC card 5 and the information communication system 10 can communicate information without contacting each other. When the information read from the IC chip 5C by the information communication system 10 is confirmed to be correct, in other words, when it is determined that the person is allowed to pass through the gate device 1, the gate device 1 opens the door 3. The owner of the IC card 5 can pass through the gate device 1.

[0015] The information communication system 10 is not limited to the illustrated example, and may be applied to any device other than the gate device 1. For example, the information communication system 10 may be applied to a credit card payment device. The IC chip 5C may be included in something other than the IC card 5. For example, the IC chip 5C may be included in a mobile terminal. The information recorded in the IC chip 5C is not limited to personal information. The IC chip 5C may record information on the charged amount, for example. The information communication system 10 may not only read information from the IC chip 5C, but also write information to the IC chip 5C.

[0016] FIG. 3 is a front view of the information communication system 10. FIG. 4 is a cross-sectional view of the information communication system 10 taken along line IV-IV in FIG. 3. As shown in FIGS. 3 and 4, the information communication system 10 includes a housing 13, a communication unit 15, and a hologram sheet 20. The housing 13 holds the communication unit 15. The housing 13 may be the housing of the gate device 1 as shown in FIG. 1. The hologram sheet 20 is overlaid on the communication unit 15. The hologram sheet 20 may be overlaid so as to cover the entire communication unit 15.

[0017] The communication unit 15 communicates information with the IC chip 5C arranged at the communication position 15P. The communication position 15P is separated from the communication unit 15. The distance between the communication unit 15 and the communication position 15P may be 0.1 cm or more, or may be 5 cm or less.

[0018] The communication unit 15 includes, for example, an antenna (not shown). The IC card 5 including the IC chip 5C also includes an antenna (not shown) connected to the IC chip 5C. An electromagnetic field is generated when a current flows through the antenna of the communication unit 15. When the coil connected to the IC chip 5C gets close enough to the magnetic field, specifically when it gets closer to the communication unit 15 than the communication position 15P, a current flows through the antenna connected to the IC chip 5C due to electromagnetic induction. A current flows from the antenna to the IC chip 5C. By changing the electromagnetic field and performing electromagnetic induction, the communication unit 15 can communicate information with the IC chip 5C placed at the communication position 15P.

[0019] When light is irradiated onto the hologram sheet 20, it forms an image 30 at an imaging position 30P. The imaging position 30P is spaced apart from the hologram sheet 20. The hologram sheet 20 diffracts light of a specific wavelength, thereby directing light incident at a specific angle to a predetermined imaging position 30P. The hologram sheet 20 forms the image 30 by reflecting light. Even if the housing 13 or the communication unit 15 emits light, this does not affect the image 30 formed by the hologram sheet 20. The user can observe the light emitted by the housing 13 and the communication unit 15 along with the image 30 formed by the hologram sheet 20. The convenience of the housing 13 and the communication unit 15 can be improved.

[0020] A light source 7 that irradiates light onto the hologram sheet 20 is shown in Figs. 1 and 4. The light L irradiated onto the hologram sheet 20 may be ambient light. The light source 7 may be the sun or multiple electric lamps. The ambient light may be light from multiple light sources. The ambient light may be white. The light L irradiated onto the hologram sheet 20 includes wavelengths at which the hologram sheet 20 forms an image 30.

[0021] The shape of the image 30, the imaging position 30P, the wavelength of the light forming the image 30, the incidence angle of the light forming the image 30, and the angle of the direction forming the image 30 with respect to the normal direction nd of the hologram sheet 20 are recorded in advance in the hologram sheet 20. The distance between the hologram sheet 20 and the imaging position 30P may be 0.1 cm or more, or 3 cm or less. The wavelength of the light with which the hologram sheet 20 forms the image 30 may be 380 nm or more, or 780 nm or less. The incidence angle of the light with which the hologram sheet 20 forms the image 30 may be 45° or more. The angle of the direction with which the hologram sheet 20 forms the image 30 with respect to the normal direction nd of the hologram sheet 20 may be 45° or more.

[0022] 5 to 8 show examples of the shape of the image 30 formed by the hologram sheet 20. Each example of the image 30 formed by the hologram sheet 20 will be described.

[0023] In the first example shown in Fig. 5, the image 30 is a pattern consisting of a plurality of identical dots arranged regularly. According to the image 30 of the first example, the imaging position 30P where the image 30 is formed can be easily recognized. Not limited to the illustrated example, the plurality of dots may be arranged irregularly in the pattern.

[0024] When the orientation of hologram sheet 20 changes, the orientation of image 30 formed by hologram sheet 20 also changes. In the first example, image 30 is made up of the same points, so even if the orientation of hologram sheet 20 changes, only the positions of the points change, but the orientations of the points do not change. In the first example, even if the orientation of hologram sheet 20 changes, imaging position 30P where image 30 is formed can be easily recognized.

[0025] In the second example shown in Fig. 6, the image 30 is a pattern of regularly arranged dots that become larger toward the center. According to the image 30 of the second example, the imaging position 30P where the image 30 is formed and its center can be easily recognized. The illustrated example is not limited to this, and the dots in the pattern may be irregularly arranged.

[0026] In the second example, the points become larger as they approach the center, so even if the orientation of the hologram sheet 20 changes, only the position of each point changes, but the orientation of each point does not change. The points also remain larger as they approach the center. In the second example, even if the orientation of the hologram sheet 20 changes, the imaging position 30P where the image 30 is formed and its center can be easily recognized.

[0027] In the third example shown in FIG. 7, the image 30 is a pattern consisting of one shape showing the design. In the illustrated example, the shape showing the design is a sun-like shape. Specifically, the shape showing the design includes a circle and eight isosceles triangle shapes equally spaced around the circle. The shape showing the design may be a character, a figure, a symbol, or a combination thereof, without being limited to the illustrated example. The shape showing the design may be an n-fold symmetric shape. n may be 5 or more. In the illustrated example, n is 8. According to the image 30 of the third example, the imaging position 30P where the image 30 is formed can be easily recognized, and the image 30 can provide an excellent design to the information and communication system 10.

[0028] In the third example, because the shape showing the design is an n-fold symmetric shape, even if the orientation of hologram sheet 20 or the orientation of image 30 changes, there is almost no change in the recognition of image 30. In the third example, even if the orientation of hologram sheet 20 changes, imaging position 30P where image 30 is formed can be easily recognized, and image 30 can impart an excellent design to information and communication system 10.

[0029] In the fourth example shown in FIG. 8, the image 30 is a pattern consisting of a plurality of shapes showing a design arranged regularly. In the illustrated example, the shape showing the design is an airplane-like shape. The shape showing the design may be a character, a figure, a symbol, or a combination thereof. According to the image 30 of the fourth example, the imaging position 30P where the image 30 is connected can be easily recognized, and the image 30 can impart an excellent design to the information and communication system 10. Not limited to the illustrated example, in the pattern, the shapes showing the plurality of designs may be arranged irregularly, and the orientation of the shapes showing the plurality of designs may also be irregular.

[0030] In the illustrated example, the shapes showing the design are oriented in the same direction, but each shape may be oriented in a random manner. In this case, even if the orientation of the hologram sheet 20 changes, the recognition of the image 30 hardly changes. Even if the orientation of the hologram sheet 20 changes, the imaging position 30P where the image 30 is formed can be easily recognized, and the image 30 can provide an excellent design to the information and communication system 10.

[0031] The image 30 formed by the hologram sheet 20 may have any shape, not being limited to the example shown in the figure.

[0032] When the light irradiated to the hologram sheet 20 is two or more types of ambient light, the image 30 may be formed by overlapping multiple patterns with the patterns being shifted from one another. Even if the patterns in the images 30 of the first, second, and fourth examples are overlapped multiple times with the patterns being shifted from one another, the recognition of the image 30 hardly changes. Even if the light irradiated to the hologram sheet 20 is ambient light, the imaging position 30P can be easily recognized.

[0033] The sheet surface 20S of the hologram sheet 20 may be larger than the IC card 5 including the IC chip 5C. Specifically, the sheet surface 20S of the hologram sheet 20 may be a shape capable of containing a circle having a diameter of 9 cm or more. The sheet surface 20S of the hologram sheet 20 may be a shape capable of containing a circle having a diameter of 10 cm or more. A shape capable of containing a circle having a diameter of 9 cm or more means that a circle having a diameter of 9 cm or more can be arranged inside the shape. The sheet surface 20S of the hologram sheet 20 may be an n-fold symmetric shape. An n-fold symmetric shape is a shape that coincides with itself when rotated by [360 / n]° around a certain point. n may be 5 or more, 8 or more, or 10 or more. In the example shown in FIG. 3, the sheet surface 20S of the hologram sheet 20 is a circle. In a circle, n of an n-fold symmetric shape is infinity.

[0034] Fig. 9 shows a cross-sectional view of the hologram sheet 20. As shown in Fig. 9, the hologram sheet 20 includes a surface layer 27, a volume reflection hologram layer 25, a bonding layer 23, a base material 21, and a self-adhesive layer 29, in this order. The hologram sheet 20 may include other layers. The thickness of the hologram sheet 20 may be 100 µm or more, or 1 mm or less.

[0035] The substrate 21 supports the volume reflection hologram layer 25. The substrate 21 is thin plate-like. The substrate 21 is transparent. The thickness of the substrate 21 may be 10 μm or more and 100 μm or less, taking into consideration transparency, appropriate supportability and durability of the volume reflection hologram layer 25, etc. The material of the substrate 21 may be polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polystyrene, or cyclic polyolefin.

[0036] By transparent it is meant that the transmittance of the member in question at wavelengths of 380 nm or more and 780 nm or less is 40% or more, 70% or more, or 80% or more.

[0037] The bonding layer 23 bonds the base material 21 and the volume reflection hologram layer 25. The bonding layer 23 is transparent. The bonding layer 23 has adhesiveness or adhesion. The thickness of the bonding layer 23 may be 5 μm or more and 50 μm or less. The material of the bonding layer 23 may be an acrylic adhesive material.

[0038] The volume reflection hologram layer 25 reflects and diffracts the incident light, thereby forming an image 30 at an imaging position 30P. The communication unit 15 can be observed through the hologram sheet 20 including the volume reflection hologram layer 25. The volume reflection hologram layer 25 does not easily prevent the communication unit 15 from being observed from the outside. The volume reflection hologram layer 25 does not contain metal. The volume reflection hologram layer 25 does not prevent the communication unit 15 from communicating information with the IC chip 5C. The thickness of the volume reflection hologram layer 25 may be 1 μm or more, 5 μm or more, 100 μm or less, or 40 μm or less. The volume reflection hologram layer 25 may be a hardened silver halide sensitive material, dichromated gelatin, a crosslinked polymer, or a photopolymer.

[0039] The surface layer 27 forms the surface of the hologram sheet 20 and protects the volume reflection hologram layer 25 from the outside. The surface layer 27 is transparent. The thickness of the surface layer 27 may be 10 μm or more, or 100 μm or less. The surface layer 27 may be provided with some function. The functions that can be provided to the surface layer 27 may be an anti-reflection (AR) function, a hard coat (HC) function having scratch resistance, an infrared shielding (reflection) function, an ultraviolet shielding (reflection) function, an antifouling function, or a bonding function. The material of the surface layer 27 may be polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polystyrene, or a cyclic polyolefin.

[0040] The self-adhesive layer 29 fixes the hologram sheet 20 by adhering it to the housing 13. The self-adhesive layer 29 may be in contact with the communication unit 15. The self-adhesive layer 29 includes a plurality of micropores. The self-adhesive layer 29 adheres to another member by escaping air from the micropores. The self-adhesive layer 29 can be peeled off from the member once adhered thereto, and can be adhered again even after being peeled off. The self-adhesive layer 29 may be transparent. The thickness of the self-adhesive layer 29 may be 10 μm or more, or 100 μm or less. The material of the self-adhesive layer 29 may be a silicon-based adhesive, a polyurethane-based adhesive, or an acrylic-based adhesive.

[0041] The communication position 15P is indicated by the imaging position 30P. As shown in Fig. 4, the imaging position 30P is located between the communication position 15P and the hologram sheet 20. In other words, the length between the hologram sheet 20 and the imaging position 30P is shorter than the length between the hologram sheet 20 and the communication position 15P. The length between the imaging position 30P and the communication position 15P may be 0.1 cm or more, or 3 cm or less.

[0042] The information communication system 10 may further include a display object (not shown). The display object may display a statement suggesting that the communication unit 15 can communicate information with the IC chip 5C even if the IC chip 5C is not brought into contact with the communication unit 15. In the case where the image formed by the hologram sheet is green and the IC card includes an IC chip, the display object may display text such as "touch the card to the green light."

[0043] Next, a method for manufacturing the volume reflection hologram layer 25 and the hologram sheet 20 will be described with reference to FIGS.

[0044] As shown in FIG. 10, a hologram sensitive material 57a and a pattern mask 53 are provided on a first substrate 51 made of glass or the like. The material of the hologram sensitive material 57a may be a silver halide sensitive material, dichromated gelatin, a cross-linked polymer, or a photopolymer, but is preferably a photopolymer. The photopolymer is made of a dry material that hardens when irradiated with ultraviolet light, and is suitable for mass production. The photopolymer may contain at least one type of photopolymerizable compound and a photopolymerization initiator. The pattern mask 53 has openings 53a, and blocks light in areas where the openings 53a are not provided, but transmits light in areas where the openings 53a are provided. The pattern mask 53 forms a pattern shape corresponding to the position where the hologram sheet 20 forms the image 30 by the openings 53a. For example, the pattern mask 53 does not have openings 53a at a position that overlaps with the image 30 formed by the hologram sheet 20.

[0045] As shown by the arrows in FIG. 10, ultraviolet light is irradiated through pattern mask 53. The ultraviolet light is blocked in the areas of pattern mask 53 where openings 53a are not provided. In the areas where openings 53a are provided, the ultraviolet light passes through pattern mask 53 and is irradiated onto hologram sensitive material 57a. The hologram sensitive material 57a irradiated with ultraviolet light is cured. The hologram sensitive material 57a is cured in areas other than the pattern shape corresponding to pattern mask 53. The cured areas of hologram sensitive material 57a become insensitive areas 57b where no hologram is recorded. Even if light for imaging a hologram is irradiated later, no hologram is imaged in insensitive areas 57b.

[0046] As shown in FIG. 11, the pattern mask 53 is removed. The first hologram master 55 is disposed on the opposite side of the first substrate 51 to the hologram sensitive material 57a. The first substrate 51 is located between the hologram sensitive material 57a and the first hologram master 55. A hologram is recorded on the entire first hologram master 55. As shown by the arrow in FIG. 11, the hologram sensitive material 57a is irradiated with light, particularly with a parallel light beam. The light directly irradiated on the hologram sensitive material 57a is incident on the hologram sensitive material 57a as reference light, and the diffracted light that passes through the hologram sensitive material 57a and is diffracted by the first hologram master 55 is incident on the hologram sensitive material 57a as object light. The object light and the reference light interfere with each other, generating interference fringes that are a light and dark pattern in the hologram sensitive material 57a. The interference fringes are recorded in the photosensitive hologram sensitive material 57a. The interference fringes are not recorded in the insensitive portion 57b. Interference fringes are recorded at a position overlapping with the image 30 formed by the hologram sheet 20, and a second hologram master 57 is produced from the hologram sensitive material 57a.

[0047] The light irradiated to the hologram sensitive material 57a, i.e., the object light and the reference light, may be an argon ion laser (wavelengths 457.9 nm, 476.5 nm, 488.0 nm, 514.5 nm), a krypton ion laser (wavelength 647.1 nm), a helium-neon laser (wavelength 632.8 nm), or a YAG laser (wavelength 532 nm). The light of the irradiated wavelength is included in the light irradiated to the hologram sheet 20 when the hologram sheet 20 forms an image 30.

[0048] As shown in FIG. 12, the second hologram sensitive material 25a forming the volume reflection hologram layer 25 and the second hologram master 57 manufactured in the above-mentioned process are disposed apart from each other. The distance between the second hologram sensitive material 25a and the second hologram master 57 is the distance between the imaging position 30P where the manufactured volume reflection hologram layer 25 forms an image 30 and the volume reflection hologram layer 25, and further the hologram sheet 20. By adjusting the distance between the second hologram sensitive material 25a and the second hologram master 57, the distance between the imaging position 30P where the volume reflection hologram layer 25 forms an image 30 and the hologram sheet 20 can be adjusted. In the example shown in FIG. 12, in order to separate the second hologram sensitive material 25a and the second hologram master 57 by a desired distance, a second substrate 52 made of glass, transparent resin, or the like is provided between the second hologram sensitive material 25a and the second hologram master 57. The second hologram sensitive material 25a and the second hologram master 57 may be separated by air or the like as long as they are spaced apart by a desired distance. As shown by the arrow in FIG. 12, the second hologram sensitive material 25a is irradiated with light, and interference fringes, which are light and dark patterns, are generated in the second hologram sensitive material 25a, in the same manner as in the manufacturing process of the second hologram master 57 described above. The interference fringes are generated at the positions where the interference fringes are generated in the second hologram master 57, that is, at positions where the interference fringes overlap with the image 30 formed by the hologram sheet 20. In this manner, the volume reflection hologram layer 25 is manufactured.

[0049] The manufactured volume reflection hologram layer 25 is bonded to the base material 21 via the bonding layer 23, and a self-adhesive layer 29 is provided on the side of the base material 21 opposite the volume reflection hologram layer 25. A surface layer 27 is provided on the side of the volume reflection hologram layer 25 opposite the base material 21. Through the above steps, the hologram sheet 20 shown in Fig. 9 is manufactured. A peelable separator may be superimposed on the self-adhesive layer 29 to prevent the self-adhesive layer 29 from unintentionally adhering to other members.

[0050] The separator is peeled off from the hologram sheet 20, and the hologram sheet 20 is attached to the housing 13 so as to overlap the communication unit 15. In this way, the information communication system 10 shown in Figs. 3 and 4 is manufactured.

[0051] A user of a conventional information and communication system recognizes that by holding an IC card including an IC chip over a communication unit, the communication unit communicates information with the IC chip. When holding an IC card including an IC chip over a communication unit, the user may bring the IC card into contact with the communication unit unintentionally, due to the force of the holding, or intentionally, thinking that the communication unit can reliably communicate information with the IC chip. When the IC card comes into contact with the communication unit, the impact of the contact may cause either the IC chip or the communication unit, or both, to malfunction. When the IC card comes into contact with the communication unit, bacteria, viruses, etc. may be transferred from the IC card to the communication unit, or from the communication unit to the IC card. This may cause the spread of infectious diseases. It is desirable for the user to properly recognize the communication position of the communication unit in order to prevent the IC card from coming into contact with the communication unit.

[0052] The information communication system 10 according to the embodiment includes a hologram sheet 20 superimposed on the communication unit 15. The hologram sheet 20 is irradiated with light to form an image 30 at an image forming position 30P. The image forming position 30P is located between the communication position 15P and the hologram sheet 20. When an IC card 5 is held over the image forming position 30P, the IC card 5 passes through the communication position 15P, and the communication unit 15 can communicate information with the IC chip 5C. A user observes the image 30 formed by the hologram sheet 20 at the image forming position 30P. By observing the image 30, the user can recognize the communication position 15P, which is difficult to recognize visually. By holding an IC card 5 including an IC chip 5C over the image 30, the user recognizes that the communication unit 15 can communicate information with the IC chip 5C. The user tries to hold the IC card 5 over the image 30, not the communication unit 15. This makes it easier to avoid contact between the communication unit 15 and the IC card 5 or the like including the IC chip 5C.

[0053] In one embodiment, the shape of sheet surface 20S of hologram sheet 20 has an n-fold symmetry, where n may be 5 or more. Even if the orientation of hologram sheet 20 is changed with respect to communication unit 15 so that image 30 formed by hologram sheet 20 has an appropriate orientation, hologram sheet 20 can be superimposed on communication unit 15 without any sense of incongruity in the orientation of hologram sheet 20. A user can appropriately observe image 30 formed by hologram sheet 20.

[0054] In one embodiment, sheet surface 20S of hologram sheet 20 may have a shape capable of containing a circle with a diameter of 9 cm or more. Since hologram sheet 20 is large enough, image 30 formed by hologram sheet 20 is also large enough. This makes it easier for the user to observe image 30. Image 30 formed by hologram sheet 20 is larger than IC card 5 including IC chip 5C, regardless of the orientation of hologram sheet 20. This makes it easier for the user to hold IC card 5 including IC chip 5C over image 30.

[0055] In one embodiment, the hologram sheet 20 may include a self-adhesive layer 29. The self-adhesive layer 29 may be in contact with the communication unit 15. The hologram sheet 20 can be overlaid on the communication unit 15 by peeling the hologram sheet 20 from the communication unit 15 and bringing the self-adhesive layer 29 into contact with the communication unit 15 again. Even if the image 30 formed by the hologram sheet 20 is not oriented appropriately, the orientation of the hologram sheet 20 can be corrected so that the image 30 formed by the hologram sheet 20 is oriented appropriately. The user can properly observe the image 30 formed by the hologram sheet 20.

[0056] In one embodiment, the angle of the direction in which hologram sheet 20 forms image 30 with respect to the normal direction nd of hologram sheet 20 may be 45° or more. Regardless of the manner in which communication unit 15 is installed, the user can easily observe image 30 formed by hologram sheet 20 superimposed on communication unit 15.

[0057] In one embodiment, the angle of incidence of light through which hologram sheet 20 forms image 30 may be 45° or more. Even if something that blocks the light occurs around information and communication system 10, such as a passerby, the light through which hologram sheet 20 forms image 30 is not easily blocked. A user can easily observe image 30 formed by hologram sheet 20.

[0058] In one embodiment, the light irradiated to the hologram sheet 20 may be ambient light. The hologram sheet 20 can form an image 30 regardless of the location where the information and communication system 10 is installed. The image 30 formed by the hologram sheet 20 can be easily observed by a user.

[0059] In one embodiment, the ambient light may be white. The white light may include any wavelength of light. It may include the wavelength of light at which the hologram sheet 20 forms the image 30. The hologram sheet 20 illuminated with the ambient light can form the image 30 regardless of the wavelength of light at which the hologram sheet 20 forms the image 30. The image 30 formed by the hologram sheet 20 can be easily observed by a user.

[0060] The information communication system 10 according to the embodiment includes a communication unit 15 that communicates information with an IC chip 5C arranged at a communication position 15P, and a hologram sheet 20 that is overlaid on the communication unit 15. The hologram sheet 20 includes a volume reflection hologram layer 25. The hologram sheet 20 is irradiated with light to form an image 30 at an imaging position 30P. The communication position 15P is away from the communication unit 15. The imaging position 30P is located between the communication position 15P and the hologram sheet 20. According to the information communication system 10 according to the embodiment, when an IC card 5 is held over the imaging position 30P, the IC card 5 passes through the communication position 15P, so that the communication unit 15 can communicate information with the IC chip 5C. The volume reflection hologram layer 25 does not impede the communication of information between the communication unit 15 and the IC chip 5C. A user recognizes that the communication unit 15 can communicate information with the IC chip 5C by holding an IC card 5 including an IC chip 5C over the image 30. This makes it easier to avoid contact between the communication unit 15 and the IC card 5 or the like including the IC chip 5C.

[0061] Although one embodiment has been described, the present disclosure is not limited to the above-described embodiment. The above-described embodiment can be implemented in other forms, and various omissions, substitutions, changes, additions, etc. can be made without departing from the spirit of the present disclosure.

[0062] The information and communication system 10 can be applied to various devices, not limited to the gate device 1. The information and communication system 10 may be applied to a communication terminal for payment processing or unlocking. The housing 13 that holds the communication unit 15 may be the housing of the communication terminal. [Explanation of symbols]

[0063] 1 Gate device 5. IC Card 5C IC chip 7 light source 10 Information and Communication Systems 13. Cabinet 15 Communications Department 15P communication position 20 Hologram Sheet 20S seat surface 21 Base material 23 Bonding layer 25 Volume reflection hologram layer 27 Surface layer 29 Self-adsorption layer 30 statues 30P Imaging position

Claims

1. A communication unit that communicates information with an IC chip disposed at a communication position; a hologram sheet superimposed on the communication unit, The hologram sheet includes a volume reflection hologram layer, The hologram sheet forms an image at an imaging position by being irradiated with light, the communication location is separate from the communication unit, An information and communication system, wherein the imaging position is located between the communication position and the hologram sheet.

2. The sheet surface of the hologram sheet has an n-fold symmetric shape, 2. The information and communication system according to claim 1, wherein n is 5 or more.

3. 2. The information communication system according to claim 1, wherein the sheet surface of the hologram sheet has a shape capable of containing a circle having a diameter of 9 cm or more.

4. The hologram sheet includes a self-adhesive layer, The information communication system according to claim 1 , wherein the self-adhesive layer is in contact with the communication section.

5. 2. The information communication system according to claim 1, wherein an angle between the direction in which the hologram sheet forms the image and a normal direction of the hologram sheet is 45 degrees or more.

6. 2. The information communication system according to claim 1, wherein the incident angle of light with which the hologram sheet forms the image is 45 degrees or more.

7. The information communication system according to claim 1 , wherein the light irradiated onto the hologram sheet is ambient light.

8. The information and communication system according to claim 7 , wherein the ambient light is white.

9. A hologram sheet that is overlaid on a communication unit that communicates information with an IC chip, A hologram sheet comprising a volume reflection hologram layer.

10. The sheet surface of the hologram sheet has an n-fold symmetric shape, 10. The hologram sheet according to claim 9, wherein n is 5 or more.

11. 10. The hologram sheet according to claim 9, wherein the sheet surface of the hologram sheet has a shape capable of containing a circle having a diameter of 9 cm or more.

12. The hologram sheet according to claim 9 , further comprising a self-adhesive layer.

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