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.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Sep. 12, 2003
Martin A. Putnam, Cheshire, CT (US);
John Moon, Wallingford, CT (US);
Paul S. Szczepanek, Middletown, CT (US);
Tuo LI, East Lyme, CT (US);
Anthony Rauseo, Kensington, CT (US);
Joseph Traynor, Woburn, MA (US);
Martin A. Putnam, Cheshire, CT (US);
John Moon, Wallingford, CT (US);
Paul S. Szczepanek, Middletown, CT (US);
Tuo Li, East Lyme, CT (US);
Anthony Rauseo, Kensington, CT (US);
Joseph Traynor, Woburn, MA (US);
Illumina, Inc., San Diego, CA (US);
Abstract
A method for manufacturing a diffusion grating-based optical identification element is provided. The optical identification element includes a known fiber substrate, having a diffraction grating disposed therein the grating being indicative of a code when exposed to incident light. A large number of elements or microbeads all having the same identification codes can be manufactured by cutting the substrate transversely where the grating is located, thereby creating a plurality of elements, at least two of the elements having the grating therein along substantially the entire length of the elements. The elements may be manufactured in many different ways, including winding the fiber onto a basket, forming the gratings in the basket openings or bays, removing the fiber and cutting the fiber to form the elements 8. Each bay may have a set of elements with a unique set of codes therein.