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. 20, 2025
Filed:
Oct. 29, 2020
Konica Minolta, Inc., Tokyo, JP;
Yoshihiro Nakano, Tondabaya, JP;
Koji Takahara, Hirakata, JP;
Konica Minolta, Inc., Tokyo, JP;
Abstract
A method for manufacturing an optical lens using an ion-assisted deposition apparatus that comprises an ion source includes: forming, on a lens substrate made of a material containing 40 mass % or more of fluoride, a first lower layer of an anti-reflection film of the optical lens, wherein the first lower layer is a fluoride layer; forming, on the first lower layer, a second lower layer of the anti-reflection film; forming on the second lower layer, one or more intermediate layers of the antireflection film; forming, on the one or more intermediate layers, an uppermost layer of the anti-reflection film; and irradiating, using the ion source, the lens substrate with ions.