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:
Oct. 02, 2018
Filed:
Dec. 07, 2010
Raghunath Padiyath, Woodbury, MN (US);
Charles A. Marttila, Shoreview, MN (US);
Mark K. Nestegard, Mendota Heights, MN (US);
Raghunath Padiyath, Woodbury, MN (US);
Charles A. Marttila, Shoreview, MN (US);
Mark K. Nestegard, Mendota Heights, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Light management constructions contain an optical substrate having a first major surface and a second major surface opposite the first major surface. The first major surface is a microstructured surface with asymmetrical structures. The asymmetrical structures form an ordered arrangement of a plurality of multi-sided refractive prisms, with the multi-sided refractive prisms having a cross section of 4 or greater sides. The light management constructions can be incorporated into optical articles such as windows.