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:
Jun. 05, 2012
Filed:
Dec. 22, 2010
Gary D. Sharp, Boulder, CO (US);
David A. Coleman, Louisville, CO (US);
Joel Petersen, Valley Village, CA (US);
Christopher Rich, Rancho Pales Verdes, CA (US);
Raymond Jacob Lewandowski, San Diego, CA (US);
Gary D. Sharp, Boulder, CO (US);
David A. Coleman, Louisville, CO (US);
Joel Petersen, Valley Village, CA (US);
Christopher Rich, Rancho Pales Verdes, CA (US);
Raymond Jacob Lewandowski, San Diego, CA (US);
ReaID Inc., Beverly Hills, CA (US);
Wavefront Technology, Inc., Paramount, CA (US);
Abstract
Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises embossing at least a first side of a first substrate to produce an optically functional material and then cutting the optically functional material into pieces to produce a plurality of engineered particles. The plurality of engineered particles may then be deposited on a second substrate to produce a substantially homogeneous optical appearance of the projection screen.