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:
Apr. 25, 2023
Filed:
May. 01, 2020
Applicant:
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Inventors:
Austin Lane, Sammamish, WA (US);
Matthew E. Colburn, Woodinville, WA (US);
Assignee:
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/00 (2006.01); C08F 2/48 (2006.01); G02B 1/04 (2006.01); G02B 5/02 (2006.01); G02B 5/18 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
C08F 283/006 (2013.01); C08F 2/48 (2013.01); G02B 1/04 (2013.01); G02B 5/0252 (2013.01); G02B 5/1847 (2013.01); G02B 5/203 (2013.01); C08F 2438/02 (2013.01);
Abstract
Initiator/mediator chemistry for latent imaging polymers for volume Bragg gratings is provided. Light mediated chemistry including the use of nitroxides allows a first step imaging to occur, where a light induced pattern is recorded in the material, without the grating being apparent. A second bleaching/developing step completes the curing process and reveals the grating.