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. 03, 2026
Filed:
May. 25, 2022
Essilor International, Charenton-le-Pont, FR;
Pierre Fromentin, Bangkok, TH;
Haifeng Shan, Shrewsbury, MA (US);
Essilor International, Charenton-le-Pont, FR;
Abstract
A composite mold for manufacturing a thermoset optical article which is usable as an ophthalmic lens substrate and which comprises a microstructured main surface, to a method for manufacturing such a thermoset optical article, and to a method for obtaining the composite mold. The composite mold () comprises:·—a mineral first outer mold part () having a first inner surface (), and·—an organic molding film () detachably bonded to the first inner surface () and having a microstructured pattern configured to directly form said microstructured main surface after casting the thermosetting material () in contact with the organic molding film (). The organic molding film () is hydrophobic at least on said microstructured pattern, and has a thickness of between 10 nm and 500m.