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:
May. 30, 2023
Filed:
Mar. 22, 2019
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2021.01); B24B 13/005 (2006.01);
U.S. Cl.
CPC ...
G02B 7/028 (2013.01); B24B 13/0052 (2013.01); B24B 13/0055 (2013.01); B24B 13/0057 (2013.01);
Abstract
Disclosed is a lens holding block for positioning and retaining a lens substrate in a processing machine, including a bottom part that is able to immobilize the lens holding block in the processing machine and an upper part. The upper part includes a chamber wherein is housed and attached a porous article so as to receive the lens substrate to be processed and which is able to be impregnated with a fluid, and a method for positioning and retaining a lens substrate onto a lens holding block.