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:
Oct. 30, 2018
Filed:
Sep. 19, 2014
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Sebastien Maurice, Charenton-le-Pont, FR;
Frederic Dubois, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
A device for marking an ophthalmic lens (), the lens () being made of at least one preset material, includes a laser () configured to produce permanent engravings on the lens () and configured to emit a focused beam of pulsed ultraviolet laser radiation that includes at least one radiation wavelength ranging between 200 nm and 300 nm, has a pulse length ranging between about 0.1 ns and about 5 ns, and has an energy per pulse ranging between about 5 μJ and about 100 μJ. A laser marking process configured to produce permanent engravings on an ophthalmic lens () via this device is also described.