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:
Mar. 07, 2017
Filed:
Oct. 14, 2011
William D. Coggio, Westford, MA (US);
Michael L. Steiner, New Richmond, WI (US);
William F. Edmonds, Minneapolis, MN (US);
Robert F. Kamrath, Mahtomedi, MN (US);
Lan H. Liu, Rosemount, MN (US);
Encai Hao, Woodbury, MN (US);
William D. Coggio, Westford, MA (US);
Michael L. Steiner, New Richmond, WI (US);
William F. Edmonds, Minneapolis, MN (US);
Robert F. Kamrath, Mahtomedi, MN (US);
Lan H. Liu, Rosemount, MN (US);
Encai Hao, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An optical article includes an optical element and a low refractive index layer disposed on the optical element. The low refractive index layer having an effective refractive index of 1.3 or less and including a binder, a plurality of metal oxide particles dispersed in the binder and a plurality of interconnected voids. The low refractive index layer has a haze value of at least 30%.