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:
Dec. 13, 2022
Filed:
Oct. 20, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Guanglei Du, Painted Post, NY (US);
John A. Wheatley, Stillwater, MN (US);
Yihang Lv, Shanghai, CN;
Zhiyong Xu, Shanghai, CN;
Jingfei Chen, Shanghai, CN;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An example article may include an optical filter and a multilayer stack adjacent the optical filter. The multilayer stack may include a plurality of layers. Each respective layer of the plurality layers may define a respective window edge of a plurality of window edges. The plurality of window edges may define an optical window configured to transmit light through the optical filter. At least a first respective window edge of the plurality of window edges may be stepped relative to at least a second respective window edge of the plurality of window edges.