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);
Aref Jallouli, Shrewsbury, MA (US);
Hao-Wen Chiu, Holden, MA (US);
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29C 45/14 (2006.01); B29L 11/00 (2006.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B29D 11/0073 (2013.01); B29C 45/1418 (2013.01); B29C 45/14778 (2013.01); B29K 2995/0031 (2013.01); B29K 2995/0073 (2013.01); B29L 2011/0016 (2013.01); B33Y 80/00 (2014.12);
Abstract
Disclosed herein is an injection molding method for making optical thermoplastic lenses using 3D—printed functional wafers. The method employs a variable injection molding cavity temperature that is heated to at least wafer Tg—10° C.