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. 12, 2007
Filed:
Oct. 21, 2005
Junwon Lee, Webster, NY (US);
David Kessler, Rochester, NY (US);
Xiang-dong MI, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A lighting apparatus for providing illumination, comprising: wherein y is a radial distance along the illumination plane from the optical axis of the beam-spreading optical element,dy is an arbitrarily small increment of the radial distance,dθ is the angular increment of the beam angle corresponding to dy, andƒ(θ) is the distribution function for the angular distribution of the light source, such that each beam spreading optical element adjusts the luminous intensity of the source illumination beam from the corresponding surface-emitting light source to provide a uniformized illumination beam directed toward the illumination plane;and,