Automated verification systems and method for use with optical interference devices

• US 7,184,133 B2
• Filed: 05/31/2005
• Issued: 02/27/2007
• Est. Priority Date: 01/21/2000
• Status: Expired due to Term

• Current Assignee: Viavi Solutions, Inc. (Lumentum Holdings Inc.)
• Original Assignee: Viavi Solutions, Inc. (Lumentum Holdings Inc.)
• Inventors: Coombs, Paul G., Markantes, Charles T., Witzman, Matthew R., Friedrich, Donald M., Hruska, Curtis R., Matson, Bruce, Cardell, Ken D., McCaffery, Shaun, Reinecke, John
• Primary Examiner(s): STAFIRA, MICHAEL PATRICK
• Application Number:
  US11/140,839
• Publication Number:
  US 20050217969A1
• Time in Patent Office: 637 Days
• Field of Search: None
• US Class Current: 356/71
• CPC Class Codes: G07D 7/1205 Testing spectral properties
• CPC Class Codes: G07D 7/121 Apparatus characterised by sensor details
• CPC Class Codes: G07D 7/205 Matching spectral properties
• CPC Class Codes: G07F 7/086 by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer for security documents G07D7/00; for the reading of record-carriers in general G06K7/00; for the design of coded credit-cards G06K19/10

Abstract

An automated verification system for authenticating an object having an optical security feature includes an optical system, a transport staging apparatus, and an analyzing device. The optical system includes one or more light sources that are capable of generating either narrowband or broadband light beams. The transport staging apparatus cooperates with the light sources and is configured to position the object such that one or more of the light beams strike a portion of the object where the security feature should be located. The analyzing device receives the light beams reflected or transmitted from the object and is adapted to analyze the optical characteristics of the light beams at varying angles and/or wavelengths to verify the authenticity of the object.

Claims

1. A system for verifying the authenticity of an object comprising:

one or more light sources for providing one or more beams of light;

an array of optical detectors configured to receive the one or more beams of light directed along a first optical path from the object where a color shifting optical interference security feature should be located, the array of optical detectors adapted to measure the light beam over a range of spectral wavelengths to generate a spectral curve corresponding to the reflectance or transmittance spectra of the security feature; and

(c) a data analyzing device operatively connected to the optical detector and adapted to analyze the spectral curve generated by the optical detector to verify the authenticity of the object, wherein the one or more light sources is located adjacent to the array of optical detectors, and wherein the data analyzing device includes means for comparing detected spectral related information as a function of angle of reflection with stored color related information.

2. A system as defined in claim 1, wherein the one or more light sources and the array of detectors form a single module.

3. A system as defined in claim 1, including a plurality of light sources which are included in the array of detectors to form a single module.

4. A system for verifying the authenticity of an object, comprising:

(a) at least one light source configured to direct an incident light beam toward an object to be authenticated;

(b) an analyzing apparatus comprising a plurality of optical detectors and adapted to analyze the optical characteristics of the light beams reflected from the object at varying reflectance angles to verify the authenticity of the object;

wherein the at least one light source and the plurality of optical detectors are located adjacent to each other in an array, wherein the array of detectors includes RGB detectors for detecting color related intensity information, wherein the analyzing apparatus includes means for comparing detected color related information as a function of angle of reflection with stored color related information.

5. A system as defined in claim 4, wherein the one or more light sources emit substantially white light and wherein the detectors provide separate signals for detecting of red, blue and green light and providing associated intensities of said light.

6. A system as defined in claim 4, wherein the at least one light source includes a plurality of light sources.

7. A system as defined in claim 4 further comprising a transport staging apparatus configured to position the object such that one or more light beams strike a portion of the object where an optical interference security feature should be located.

8. The system as defined in claim 4 wherein the array is a substantially planar array.

9. The system as defined in claim 4 wherein the array has a domed configuration.

10. The system as defined in claim 4 wherein the at least one light source generates a discrete wavelength of electromagnetic energy.

11. The system as defined in claim 4 wherein the at least one light source generates a broad band of wavelengths of electromagnetic energy.

12. The system of claim 4 wherein one or more of the plurality of light sources may be activated or deactivated simultaneously.

13. A system as defined in claim 4 wherein the array including one or more light sources and the plurality of detectors are facing the object to be authenticated.

14. The system as defined in claim 4 wherein the array is a non-planar array.

15. The system of claim 6 wherein one or more of the plurality of light sources may be activated or deactivated sequentially.

16. A system for verifying the authenticity of an object, comprising:

(a) at least one light source configured to direct an incident light beam toward an object to be authenticated;

(b) an analyzing apparatus comprising a plurality of optical detectors and adapted to analyze the optical characteristics of the light beams reflected from the object at varying reflectance angles to verify the authenticity of the object;

wherein the at least one light source and the plurality of optical detectors are located adjacent to each other in an array, wherein the one or more light sources emit substantially white light and wherein the detectors provide separate signals for detecting of red, blue and green light and providing associated intensities of said light, wherein in operation red, blue and green signals are integrated into a reflectance map for comparison with stored data to verify the authenticity of the object.

17. A system for verifying the authenticity of an object, comprising:

(a) at least one light source configured to direct an incident light beam toward an object to be authenticated;

(b) an analyzing apparatus comprising a plurality of optical detectors and adapted to analyze the optical characteristics of the light beams reflected from the object at varying reflectance angles to verify the authenticity of the object;

wherein the at least one light source and the plurality of optical detectors are located adjacent to each other in an array, wherein the optical detectors are RGB detectors, and wherein the analyzing apparatus is adapted to analyze the optical characteristics of the light beams reflected from the object at varying reflectance angles dependent upon color and intensity as a function of angle for comparison with stored data.

18. A system for verifying the authenticity of an object, comprising:

(a) at least one light source configured to direct an incident light beam toward an object to be authenticated;

(b) an analyzing apparatus comprising a plurality of optical detectors and adapted to analyze the optical characteristics of the light beams reflected from the object at varying reflectance angles to verify the authenticity of the object;

wherein the at least one light source and the plurality of optical detectors are located adjacent to each other in an array, wherein the analyzing apparatus includes means for comparing detected color related information as a function of angle of reflection with stored color related information.