Identification document and display unit therefor
AssigneesUnitec S.P.A., R. Oldenboug Graphische Betriebe GmbH
InventorsClaus Jung, Klaus Frank
Life of this patent
Estimating the term…
Abstract
An identification document contains idential data both in visual and holographic form. Simultaneous display of the visual data and holographic data in closely adjacent relationship permits ready detection of counterfeiting, alteration and misuse.
Claims28
Identification apparatus comprising:
- (a) an identification document carrying visual data as well as invisible features in the form of a hologram provided on said identifcation document, wherein at least portions of said visual data are identically reproduced as holographic data in said hologram;
- (b) and a display unit for displaying the information contained on said identification document with simultaneous visual display of the visual data and the holographic data in closely adjacent relationship to permit verification of conformity of the holographic and visual data, wherein said display unit comprises:
- (1) a monochromatic light source for reconstructing said hologram;
- (2) an optical arrangement for projecting the reconstructed holographic image onto a location where it may be observed together with said visual data;
- and
- (3) means for receiving said identification document, said receiving means being sized so as to receive only the portion of said identification document containing said hologram while leaving a portion carrying said visual data outside said display unit for direct observation.
Identification apparatus comprising:
- (a) an identification document carrying visual data as well as invisible features in the form of a hologram provided on said identification document, wherein at least portions of said visual data are identically reproduced as holographic data in said hologram;
- (b) and a display unit for displaying the information contained on said identification document with simultaneous visual display of the visual data and holographic data in closely adjacent relationship to permit verification of conformity of the holographic and visual data, wherein said display unit comprises:
- (1) a monochromatic light source for reconstructing said hologram;
- (2) an optical arrangement for projecting the reconstructed holographic image onto a location where it may be observed together with said visual data;
- (3) a screen, said optical arrangement projecting said reconstructed holographic image onto a first portion of said screen;
- and
- (4) a further optical arrangement for projecting an image of said visual data onto a second portion of said screen immediately adjacent said first screen portion.
A display unit for displaying the information contained on an identification document partly in the form of visual data and partly in the form of a hologram, comprising:
- (a) means for receiving said identification document, said receiving means being sized so as to receive only the portion of said identification document containing said hologram while leaving the portion carrying said visual data outside said display unit for direct observation;
- (b) a monochromatic light source for reconstructing said hologram;
- and
- (c) an optical arrangement for projecting the reconstructed holographic image onto a location where it may be observed together with said visual data.
A display unit for displaying the information contained on an identification document partly in the form of visual data and partly in the form of a hologram, comprising:
- (a) a monochromatic light source for reconstructing said hologram;
- (b) a screen;
- (c) an optical arrangement for projecting the reconstructed holographic image onto a first portion of said screen;
- and
- (d) a further optical arrangement for projecting an image of said visual data onto a second portion of said screen immediately adjacent said first screen portion.
A method for displaying information contained on an identification document partly in the form of visual data and partly in the form of a hologram, wherein said visual data and the information contained in said hologram are projected in substantially equal size onto a common screen in adjacent relationship so as to allow said data and information to be simultaneously observed and directly compared with each other.
Dependencies are inferred from the claim text.