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:
Jun. 07, 2011
Filed:
Oct. 03, 2007
Xiang-dong MI, Rochester, NY (US);
Xinyu Zhu, Rochester, NY (US);
Xiang-Dong Mi, Rochester, NY (US);
Xinyu Zhu, Rochester, NY (US);
SKC Haas Display Films Co., Ltd., Choongchungnamdo, KR;
Abstract
The present invention provides a light redirecting article for redirecting light toward a target angle, the light redirecting article comprising: an input surface comprising a plurality of light redirecting structures each light redirecting structure having a near surface having two slopes, sloping away from normal in one direction as defined by a first inclination base angle β, a second inclination angle β, and a first half apex angle α, for accepting incident illumination over a range of incident angles and a far surface sloping away from normal, in the opposite direction relative to the input surface, as defined by a second base angle γand a second half apex angle α. The invention further provides an output surface opposing to the input surface wherein the near and far surfaces are opposed to each other at an angle (α+α) that is in the range from 60 to 70 degrees, and the base angle βis in the range from 82 to 87 degrees.