Security imaging system

• US 20030218739A1
• Filed: 05/20/2003
• Published: 11/27/2003
• Est. Priority Date: 05/20/2002
• Status: Active Grant

• Current Assignee: Sun Chemical Corporation
• Original Assignee: Sun Chemical Corporation
• Inventors: Miller, Peter, Vig, Rakesh, McInerney, Henry F., Saglimbeni, Anthony
• Granted Patent: US 7,068,356 B2
• Time in Patent Office: Days
• US Class Current: 356/73
• CPC Class Codes: G01N 2021/6417 Spectrofluorimetric devices
• CPC Class Codes: G01N 21/31 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry G01N21/72 takes precedence
• CPC Class Codes: G01N 21/6428 Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" in vivo A61B5/00; immunoassay G01N33/53
• CPC Class Codes: G01N 21/643 non-biological material

Abstract

Method and system for detecting authenticate products based upon alteration of emission characteristics due to interaction of the emissions with the product and the container.

Claims

1. A method for determining the authenticity of, or tracking, a product housed in a container having a label attached thereto having a plurality of light-emitting materials on the attached side, said method comprising:

(a) exciting one or more of said light-emitting materials through said container and said product;

(b) monitoring one or more of the emitted wavelengths of light generated in response to the excitation;

(c) comparing the emission profile obtained against a standard fingerprint characteristic of an authentic product housed in an authentic container.

2. The method of claim 1 wherein a plurality of emitted wavelengths are monitored.

3. A method for determining whether packaging housing a product is authentic, said packaging having a label attached thereto having a plurality of light-emitting materials on the attached side, said method comprising:

(a) exciting one or more of said light-emitting materials through said container but not through said product;

(b) monitoring one or more of the emitted wavelengths of light generated in response to the excitation;

(c) comparing the emission profile obtained against a standard fingerprint characteristic of an authentic packaging.

4. The method of claim 3 wherein a plurality of emitted wavelengths are monitored.