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:
Nov. 04, 2025
Filed:
Aug. 07, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Fan Long, Guangzhou, CN;
Bharat R. Acharya, Woodbury, MN (US);
Jing Fei Chen, Shanghai, CN;
Huijie Xie, Beijing, CN;
Zhe Hu, Jiangsu Province, CN;
Bradley L. Givot, St. Paul, MN (US);
Carl A. Stover, St. Paul, MN (US);
Lin Zhao, Woodbury, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
Robert D. Taylor, Stacy, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A housing () for an electronic device () includes an optical film () having an optical transmittance for substantially normally incident light having a band edge separating first and second wavelength ranges, where the first wavelength range extends from about 400 nm to about 700 nm and the second wavelength range is at least about 100 nm wide and disposed between about 800 nm and about 1100 nm. For substantially normally incident light, an average optical reflectance of the optical film is greater than about 90% in the first wavelength range, and an average optical transmittance of the optical film is greater than about 80% in the second wavelength range. For at least one frequency in a range of about 0.1 GHz to about 90 GHz and for substantially normally incident radiation, the optical film transmits at least about 95% of the incident radiation.