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:
Jan. 13, 2026
Filed:
Apr. 12, 2021
Essilor International, Charenton-le-pont, FR;
Haifeng Shan, Dallas, TX (US);
Essilor International, Charenton-le-Pont, FR;
Abstract
The present disclosure relates to a method of designing a spherical microstructure mold (-) module to be incorporated into a calendering roller () for generating a microstructure () on a planar surface (), comprising calculating a first curvature () on a cross-sectional planar surface () for a first microstructure point of the spherical microstructure mold module, calculating a second curvature () of a spherical surface () of the spherical microstructure mold module, measuring a radius () of the spherical surface (), the radius () being from the center of the spherical surface () to the first microstructure point, and determining a location of the microstructure () on the planar surface (), the location being derived from the first curvature (), the second curvature (), and the radius ().