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:
Jul. 29, 2025
Filed:
Oct. 21, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Shinji Fukui, Tochigi, JP;
Seiji Kuwabara, Tochigi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical component includes a base and a multilayer film including a first layer group located on the base and a second layer group located between the first layer group and the base. The second layer group includes a first dielectric layer and a second dielectric layer alternately stacked, the first layer group includes a third dielectric layer and a fourth dielectric layer alternately stacked. The first dielectric layer has a higher refractive index than the second dielectric layer, and the third dielectric layer has a higher refractive index than the fourth dielectric layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile