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:
Feb. 14, 2006
Filed:
Aug. 18, 2003
Applicants:
Xiang-dong MI, Rochester, NY (US);
David Kessler, Rochester, NY (US);
Janet Donner, West Henrietta, NY (US);
Inventors:
Xiang-Dong Mi, Rochester, NY (US);
David Kessler, Rochester, NY (US);
Janet Donner, West Henrietta, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A brightness enhancement article for improving luminance from a light source includes a light-collecting prism surface forms a series of longitudinal trapezoidal prism elements in which each has a face plane disposed toward the light source and first and second legs extending back from the face plane, forming first and second base anglesβ with the face plane wherein both first and second base anglesβ satisfy: 90 degrees<base angle β<120 degrees.