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:
Sep. 24, 2019
Filed:
Jun. 18, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Thomas R. Hoffend, Jr., Pleasanton, CA (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 11/00 (2006.01); G02B 5/02 (2006.01); G02B 5/122 (2006.01); G02B 5/126 (2006.01);
U.S. Cl.
CPC ...
F21S 11/007 (2013.01); G02B 5/021 (2013.01); G02B 5/122 (2013.01); G02B 5/126 (2013.01);
Abstract
Window glass having sun-facing daylight redirecting optical structures with an embedded surface diffuser patterned on them. The optical structures are generally linear and formed from a repeating unit cell. Each unit cell has a base, two or more peaks opposite the base, and at least one curved side between the base and the peaks. The other sides between the base and the peaks can be substantially straight, curved, or a series of facets approximating a curve.