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. 19, 2013
Filed:
Mar. 17, 2010
Applicants:
Jeffery R. Parker, Richfield, OH (US);
Timothy A. Mccollum, Thurmont, MD (US);
Inventors:
Jeffery R. Parker, Richfield, OH (US);
Timothy A. McCollum, Thurmont, MD (US);
Assignee:
Rambus International Ltd., , KY;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Light redirecting film including a thin optically transparent substrate having a pattern of individual optical elements of well-defined shape on at least one surface that are quite small relative to the length and width of the surface. At least some of the optical elements have at least one flat surface and at least one curved surface, and intersecting each other over an intersection volume of the intersecting optical elements.