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. 14, 2017
Filed:
Jan. 24, 2013
3m Innovative Properties Company, St. Paul, MN (US);
Andrew J. Ouderkirk, Saint Paul, MN (US);
Justina Sze Ying Lee, Singapore, SG;
Ravi Palaniswamy, Singapore, SG;
Arokiaraj Jesudoss, Singapore, SG;
Kelly Reed Ingham, Singapore, SG;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.