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:
Oct. 28, 2008
Filed:
Oct. 27, 2004
Paul Dvorkis, East Setauket, NY (US);
Ron Goldman, Cold Spring Harbor, NY (US);
Chinh Tan, Setauket, NY (US);
Dmitriy Yavid, Stony Brook, NY (US);
Frederick F. Wood, Medford, NY (US);
Paul Dvorkis, East Setauket, NY (US);
Ron Goldman, Cold Spring Harbor, NY (US);
Chinh Tan, Setauket, NY (US);
Dmitriy Yavid, Stony Brook, NY (US);
Frederick F. Wood, Medford, NY (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
A plurality of image projection modules is operative for causing selected pixels in overlapping raster patterns to be illuminated to produce a large size image of high resolution of VGA quality in monochrome or color. The selected pixels in an overlap region of the patterns are illuminated at a lesser intensity to provide uniform brightness over the image. Multiple single mode lasers, or a multimode laser with an aperture stop, are employed to increase laser output power. Speckle noise is reduced by controlling the optical transmission characteristic of a projection screen. Three-dimensional images are generated by moving the screen. Cross-coupling between drive and feedback mechanisms in image projection is reduced for better image quality.