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Title: Diffraction gratings used as identifying markers

Abstract

A finely detailed defraction grating is applied to an object as an identifier or tag which is unambiguous, difficult to duplicate, or remove and transfer to another item, and can be read and compared with prior readings with relative ease. The exact pattern of the defraction grating is mapped by diffraction moire techniques and recorded for comparison with future readings of the same grating.

Inventors:
 [1];  [1]
  1. (Idaho Falls, ID)
Publication Date:
Research Org.:
EG & G IDAHO INC
OSTI Identifier:
867757
Patent Number(s):
US 5003600
Assignee:
United States of America as represented by Department of Energy (Washington, DC) INEEL
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
diffraction; gratings; identifying; markers; finely; detailed; defraction; grating; applied; identifier; tag; unambiguous; difficult; duplicate; remove; transfer; item; compared; prior; readings; relative; ease; exact; pattern; mapped; moire; techniques; recorded; comparison; future; diffraction grating; diffraction moire; diffraction gratings; /380/235/250/342/359/365/

Citation Formats

Deason, Vance A., and Ward, Michael B. Diffraction gratings used as identifying markers. United States: N. p., 1991. Web.
Deason, Vance A., & Ward, Michael B. Diffraction gratings used as identifying markers. United States.
Deason, Vance A., and Ward, Michael B. Tue . "Diffraction gratings used as identifying markers". United States. https://www.osti.gov/servlets/purl/867757.
@article{osti_867757,
title = {Diffraction gratings used as identifying markers},
author = {Deason, Vance A. and Ward, Michael B.},
abstractNote = {A finely detailed defraction grating is applied to an object as an identifier or tag which is unambiguous, difficult to duplicate, or remove and transfer to another item, and can be read and compared with prior readings with relative ease. The exact pattern of the defraction grating is mapped by diffraction moire techniques and recorded for comparison with future readings of the same grating.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

Patent:

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