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:
Aug. 25, 2026
Filed:
Jul. 11, 2025
Carl Zeiss Vision International Gmbh, Aalen, DE;
Opto Tech Optikmaschinen Gmbh, Jena, DE;
Gerd Nowak, Neresheim, DE;
Wito Hartmann, Aalen, DE;
Roland Mandler, Wettenberg, DE;
Oswin Lack, Hüttenberg-Weidenhausen, DE;
Carl Zeiss Vision International GmbH, Aalen, DE;
Opto Tech Optikmaschinen GmbH, Jena, DE;
Abstract
A vacuum blocking piece for vacuum blocking a lens blank has a support element with an upper part and a lower part. The lower part can engage with a clamping device for clamping the vacuum blocking piece. The vacuum blocking piece further includes a fluid-permeable blank contacting element. An upper surface of the blank contacting element, which is configured to hold the lens blank, is made of an elastic material. The lower surface contacts the upper part of the support element. The vacuum blocking piece fixes the lens blank to the upper surface of the blank contacting element by applying a vacuum within the blocking piece to provide suction through essentially the entire upper surface of the blank contacting element to fix the lens blank to the upper surface of the blank contacting element and to fix the blank contacting element to the upper part of the support element.