Patent 7831178 was granted and assigned to Eastman Kodak on November, 2010 by the United States Patent and Trademark Office.
Electrographic printing of one or more optical elements having a particular profile by electrographic techniques. Such electrographic printing comprises the steps of forming a desired print image, electrographically, on a receiver member utilizing predetermined sized marking particles; and, where desired, forming one or more final optical elements utilizing marking particles of a predetermined size or size distribution.