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:
May. 19, 2009
Filed:
Apr. 27, 2007
Krishnan Chari, Fairport, NY (US);
Charles W. Lander, Wayland, NY (US);
Jin-shan Wang, Pittsford, NY (US);
Donald R. Preuss, Rochester, NY (US);
Ronald S. Cok, Rochester, NY (US);
Yuan-sheng Tyan, Webster, NY (US);
Joel D. Shore, Rochester, NY (US);
Krishnan Chari, Fairport, NY (US);
Charles W. Lander, Wayland, NY (US);
Jin-Shan Wang, Pittsford, NY (US);
Donald R. Preuss, Rochester, NY (US);
Ronald S. Cok, Rochester, NY (US);
Yuan-Sheng Tyan, Webster, NY (US);
Joel D. Shore, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A light-emitting device, comprising: a light emitting element on a first side of a transparent substrate or cover through which light is emitted; and a microlens array on a second side, opposite to the first side, of the transparent substrate or cover though which light is emitted; wherein the microlens array comprises individual hemispherical shaped microlenses having a mean diameter of less than 20 micrometers and a mean microlens height to diameter ratio of greater than 0.30, and has a microlens area fill factor greater than 0.8.