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:
Jan. 01, 2013
Filed:
Apr. 29, 2010
Jesse J. Coleman, Caledonia, NY (US);
James Mazzarella, Fairport, NY (US);
James R. Kircher, Mendon, NY (US);
Jesse J. Coleman, Caledonia, NY (US);
James Mazzarella, Fairport, NY (US);
James R. Kircher, Mendon, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A light modulation assembly for a digital projection apparatus comprising: a solid-state light source that provides an illumination beam; a spatial light modulator having a plurality of tiltable micro-mirrors, each micro-mirror being actuable to tilt with respect to a tilt axis between a first tilt position that provides on-state light and a second tilt position that provides off state light, and wherein the micro-mirrors deflect the illumination beam along an arced path defining a deflection plane as they are tilted between the first tilt position and the second tilt position; and a light baffle disposed alongside the optical axis and in the path of the off state light from the micro-mirrors, the light baffle having a light-trapping surface adapted to absorb the off-state light from the micro-mirrors on the spatial light modulator, the light-trapping surface having a plurality of protruding fins that extend outward from the light-trapping surface at an oblique angle.