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. 05, 2026
Filed:
Aug. 09, 2023
Applicant:
Nichia Corporation, Anan, JP;
Inventor:
Takaaki Tada, Itano-gun, JP;
Assignee:
NICHIA CORPORATION, Anan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0268 (2013.01); G02B 5/0221 (2013.01); G02B 5/0231 (2013.01);
Abstract
A method of manufacturing an optical member includes forming a first layer on a light transmissive substrate by atomic layer deposition, converting a surface layer of the first layer into a boehmite layer, and forming a second layer by atomic layer deposition so as to cover the boehmite layer. The first layer includes aluminum oxide and has a first thickness. The second layer has a second thickness less than the first thickness.