Card which can be authenticated by hologram chip
View Patent ↗A card authentication is performed. An authentication chip for performing authentication by a copy-disabled hologram chip is attached to a card and when or after the card is introduced into a handling device, the authentication chip information is read to perform authentication. Read may be performed in a planar shape but a linear shape can reduce the processing load. An arbitrary straight line or a curved line may be used as a read line shape by modifying the read position in association with the card movement when the card is placed to be read. When the card introduced to a terminal device is an unauthorized one, the card is ejected or an alarm is issued when the card is introduced inside.
1. A card comprising a base plate and an authentication verifying chip, wherein said verifying chip is layered on said base plate and includes an embossed hologram, said embossed hologram having pits of different depths and a portion without said pits, the different depths of said pits respectively corresponding to a ¼ wavelength of a plurality of incident lights of different wavelengths.
2. The card according to claim 1 , wherein said pits are disposed perpendicularly to a surface of said chip.
3. The card according to claim 1 , wherein said pits are disposed inclined to a surface of said chip.
4. The card according to claim 1 , wherein said pits are arranged at regular intervals.
5. The card according to claim 4 , wherein said pits are arranged based on binary true random numbers.
6. The card according to claim 5 , wherein said pits are a part of the pits arranged based on binary true random numbers.
7. The card according to claim 4 , wherein said pits are arranged based on quaternary true random numbers.
8. The card according to claim 7 , wherein said pits are a part of the pits arranged based on quaternary true random numbers.
9. The card according to claim 1 , wherein a mark for reading position alignment is further provided on said verifying chip.
10. The card according to claim 9 , wherein said mark for reading position alignment provided is one mark.
11. The card according to claim 9 , wherein a plurality of marks for reading position alignment are disposed on said verifying chip.
12. The card according to claim 9 , wherein a line to start the reading, a line to finish the reading and a line to indicate the end portion are provided.
13. The card according to claim 9 , 10 , 11 or 12 , wherein a mark for synchronization signal is further provided.
14. The card according to claim 1 , wherein said pits are arranged with an adequate distance to each other.
15. An embossed hologram reading device for reading an embossed hologram having pits of different depths and a portion without the pits on an authentication verifying chip mounted on a card, wherein said reading device includes at least one light source for a plurality of incident lights of different wavelengths for irradiating said authentication verifying chip and an image pickup device for photographing a plurality of images of a plurality of wavelengths of said authentication verifying chip thus irradiated, the different depths of the pits respectively corresponding to a ¼ wavelength of the plurality of incident lights of different wavelengths.
16. An embossed hologram reading device for reading an embossed hologram having pits of different depths and a portion without the pits on an authentication verifying chip mounted on a card, wherein said reading device includes a light emitting/detecting elements matrix for a plurality of incident lights of different wavelengths with the same area as said verifying chip, the different depths of the pits respectively corresponding to a ¼ wavelength of the plurality of incident lights of different wavelengths.
17. An embossed hologram reading device for reading an embossed hologram having pits of different depths and a portion without the pits on an authentication verifying chip mounted on a card, wherein said reading device includes at least one light emitting/detecting elements array for a plurality of incident lights of different wavelengths with the same width as said verifying chip, the different depths of the pits respectively corresponding to a ¼ wavelength of the plurality of incident lights of different wavelengths.
18. An embossed hologram reading device for reading an embossed hologram having pits of different depths and a portion without the pits on an authentication verifying chip mounted on a card, wherein said embossed hologram reading device includes a set of light emitting/detecting elements, for a plurality of incident lights of different wavelengths, movable in a direction of a width of said verifying chip and said light emitting/detecting elements read the embossed hologram while the embossed hologram is moving.
19. The embossed hologram reading device according to claim 18 , wherein said reading device has more than one set of light emitting/detecting elements for the plurality of incident lights of different wavelengths.