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:
Nov. 14, 2023
Filed:
Dec. 16, 2022
Interglass Technology Ag, Steinhausen, CH;
Daniel Piotrowski, Steinhausen, CH;
René Josef Ulrich, Weggis, CH;
Lutz Körner, Fischbach-Göslikon, CH;
Abstract
A method of producing a lens with an embedded foil, comprising the steps of positioning a foil () on a foil fixation holder, providing adhesive attachment dots () on the foil () on surface portions () opposite to the foil fixation holder, positioning the front mould () ensuring the contact of the attachment dots () with a surface () of the front mould (), retracting the foil fixation holder and positioning a back mould () opposite to the front mould (). Then the front mould () and the rear mould () are connected with a sealing bridging element () to build an assembly in order to form a mould cavity () with a pouring opening, wherein the edge () of the foil () is spaced apart () from the bridging element () and the assembly comprises passages between the attachment dots (), the foil () and the front mould backside () allowing pouring a monomer into the entire mould cavity () before curing the monomer and decomposing the assembly as well as cutting the lens with the embedded foil from the polymer block.