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:
Feb. 18, 2025
Filed:
Jul. 01, 2020
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Haifeng Shan, Shrewsbury, MA (US);
Hao-Wen Chiu, Holden, MA (US);
Aref Jallouli, Shrewsbury, MA (US);
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/118 (2017.01); B29C 64/314 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29K 101/12 (2006.01); B29L 11/00 (2006.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B29C 64/118 (2017.08); B29C 64/314 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B29K 2101/12 (2013.01); B29K 2995/0082 (2013.01); B29K 2995/0097 (2013.01); B29L 2011/0016 (2013.01); B33Y 80/00 (2014.12);
Abstract
The disclosure includes core-shell filament composition for additive manufacturing of ophthalmic lenses and ophthalmic lens components. The disclosure also includes a set of criteria for selecting core and shell thermoplastic combinations that exhibit high optical clarity, improved filament inter-strand diffusion, high inter-strand adhesion, and improved manufactured part strength when used in an additive manufacturing method like fused deposition modelling.