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:
Apr. 17, 2001
Filed:
Nov. 24, 1998
Thomas J. Hammond, Penfield, NY (US);
James D. Rees, Pittsford, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A light emitting diode based exposure station (and electrophotographic marking machines that use such exposure stations) that requires only a small amount of photoreceptor waterfront (space). The small waterfront requirement is achieved using a gradient index lens array that transmits focused light onto the photoreceptor with a total conjugate that is sufficient to permit the widest part of the light emitting diode based exposure station to be displaced sufficiently far from the photoreceptor that other printing machine devices can be disposed between the widest part of the exposure station and the photoreceptor. The increased total conjugate is achieved using a gradient index lens array having longer rods and/or wider rods.