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. 18, 2004
Filed:
Jun. 21, 2002
Louis S. Horvath, Rochester, NY (US);
James E. Roddy, Rochester, NY (US);
Robert J. Zolla, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A display apparatus ( ) for projection of a color image from digital data onto a surface ( ) comprises a first modulation system which provides a first modulated beam. The first modulation system comprises a first spatial light modulator for modulating a first incident light beam in order to form the first modulated beam according to the digital data; a first light source provides a first color beam as the first incident light beam; and a second light source provides a second color beam as the first incident light beam. A second modulation system provides a second modulated beam. The second modulation system comprises a second spatial light modulator for modulating a second incident light beam in order to form the second modulated beam according to the digital data; a third light source provides a third color beam as the second incident light beam; and a fourth light source provides a fourth color beam as the second incident light beam. An optical combiner ( ) directs the first modulated beam and the second modulated beam for projection onto the surface by a projection lens.