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:
Mar. 26, 2024
Filed:
Oct. 08, 2018
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Hao-Wen Chiu, Dallas, TX (US);
Shannon Loiselle, Dallas, TX (US);
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29C 45/00 (2006.01); B29C 45/37 (2006.01); B29C 45/73 (2006.01); B29C 45/78 (2006.01); G02B 3/08 (2006.01); B29K 21/00 (2006.01); B29K 27/06 (2006.01); B29K 75/00 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00269 (2013.01); B29C 45/0025 (2013.01); B29C 45/372 (2013.01); B29C 45/7306 (2013.01); B29C 45/78 (2013.01); B29D 11/00432 (2013.01); G02B 3/08 (2013.01); B29C 2045/7393 (2013.01); B29C 2945/7604 (2013.01); B29C 2945/7626 (2013.01); B29K 2021/003 (2013.01); B29K 2027/06 (2013.01); B29K 2075/00 (2013.01); B29L 2011/005 (2013.01);
Abstract
A method for producing an optical article having a Fresnel microstructure and an injection molding system for producing such an article. The method includes heating and cooling a mold and applying a pressure to a thermoplastic material during injection molding of the optical article to facilitate formation of the Fresnel microstructure.