OBJECT AUTHENTICATION DEVICE AND METHOD

• US 20170307365A1
• Filed: 11/16/2015
• Published: 10/26/2017
• Est. Priority Date: 11/24/2014
• Status: Abandoned Application

• Current Assignee: Paper DNA AG
• Original Assignee: Paper DNA AG
• Inventors: Bergqvist, Johan, Bohlin, Erik, Nikolaus, Frank
• Application Number:
  US15/527,768
• Publication Number:
  US 20170307365A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/1172 using fingerprinting
• CPC Class Codes: G01B 11/25 by projecting a pattern, e.g. one or more lines, moiré fringes on the object G01B11/255 takes precedence ; image analysis for depth or shape recovery G06T7/50
• CPC Class Codes: G06V 10/145 Illumination specially adapted for pattern recognition, e.g. using gratings
• CPC Class Codes: G06V 40/1324 by using geometrical optics, e.g. using prisms G06V40/1312 takes precedence
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: G07D 7/12 Visible light, infrared or ultraviolet radiation

Abstract

A device for authentication, which is capable of producing a topographic pattern image based on a microstructure of a paper-based artifact. The topographic pattern image of the microstructure of the paper-based artifacts is used for authentication of the paper-based artifacts. The device includes an illumination channel comprising a light source and a light director configured to bend the light beam produced by the light source. The device also includes an imaging channel comprising at least one lens configured to magnify the topographic pattern created by the light beam and an image capturing mechanism to capture the topographic pattern.

Claims

1. A device for authentication, capable of producing a topographic pattern image based on a microstructure of a paper-based artifacts, wherein the topographic pattern image of the microstructure of said paper-based artifacts is used for authentication of the paper-based artifacts, the device comprising:

a. an illumination channel comprising a light source of at least one light emitting diode, and a light director configured to bend the light beam produced by said light source, whereby illuminating the paper-based artifacts at certain angle; and

b. an imaging channel comprising of at least one lens configured to magnify the said microstructure created by the light beam, whereby the paper-based artifact'"'"'s microstructure is clearly visible and an image capturing mechanism to capture said topographic pattern image.

2. The device as claimed in claim 1, the device further comprising a mechanical aperture below the imaging channel on the lower part of the device.

3. The device as claimed in claim 1, the device further comprising a protective cap, wherein the protective cap is removeably attached to a lower part of the device, wherein the protective cap is configured to protect the light director and lens from stains, dust and other contaminants by closing the mechanical aperture.

4. The device as claimed in claim 1, the device further comprising a protective gliding cap, wherein the protective gliding cap is configured to be pulled back to allow the optical parts to become functional over the working surface.