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:
Feb. 04, 2025
Filed:
May. 10, 2021
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
John A. Wheatley, Lake Elmo, MN (US);
Guanglei Du, Woodbury, MN (US);
David T. Yust, Woodbury, MN (US);
Neeraj Sharma, Woodbury, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
Ellison G. Kawakami, St. Paul, MN (US);
Anthony M. Renstrom, Forest Lake, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/20 (2006.01); G02B 5/28 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); G02B 5/285 (2013.01); G02B 5/28 (2013.01); G02B 5/3025 (2013.01);
Abstract
An article includes an optical filter that comprises a wavelength selective reflective layer and at least one wavelength selective absorbing layer. The optical filter has visible transmittance between 400 nm-700 nm of less than about 30% and near infrared transmittance at 830 nm-900 nm greater than about 30%.