The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 31, 2020

Filed:

Dec. 12, 2017
Applicant:

Eastman Kodak Company, Rochester, NY (US);

Inventors:

Carolyn Rae Ellinger, Rochester, NY (US);

William Yurich Fowlkes, Pittsford, NY (US);

Kevin Edward Spaulding, Spencerport, NY (US);

Assignee:

EASTMAN KODAK COMPANY, Rochester, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/00 (2006.01); G03H 1/18 (2006.01); G06K 9/00 (2006.01); G06K 7/14 (2006.01); G06K 19/06 (2006.01); G02B 5/28 (2006.01);
U.S. Cl.
CPC ...
G03H 1/18 (2013.01); G02B 5/285 (2013.01); G06K 7/1404 (2013.01); G06K 9/00442 (2013.01); G06K 19/06037 (2013.01); G06K 2019/06225 (2013.01);
Abstract

An electrical element is fabricated including an optically-detectable pattern of embedded information. An initial physical design is received for an electrical element that performs an electrical function, together with a pattern of information to be embedded in the electrical element. An encoding region is designated within the initial physical design of the electrical element. Information-encoding patterns are determined for one or more thin-film layers in the encoding region to form an optical layer structure that encodes the pattern of information. The initial physical design and the information-encoding patterns are combined into a modified physical design which is used to fabricate the electrical element. The fabricated electrical element performs the electrical function and forms an optically-detectable interference image including the embedded pattern of information when illuminated by incident light.


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