Display screen with metallized tapered waveguides
Patent 6538813 Issued on March 25, 2003. Estimated Expiration Date: 
September 19, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 19, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3279314 Direct view display device with array of tapered waveguide on viewer side Polarizer with an array of tapered waveguides Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein Optical waveguide having two or more refractive indices and method of manufacturing same Rear pojection screen Patent #: 5889612 InventorsAssigneeApplicationNo. 665026 filed on 09/19/2000US Classes:359/443, PROJECTION SCREEN359/460, Rear projection screen385/901ILLUMINATING OR DISPLAY APPARATUSExaminersPrimary: Mahoney, ChristopherInternational ClassG03B 021/56AbstractAn avionics display includes a first predefined display area for high priority information and a second predefined display area for normal priority information. A viewing screen is disposed between the avionics display and a design eye point. A first portion of the viewing screen, corresponding to the high priority information, includes metallized tapered waveguides to direct light including the normal priority information at a limited vertical viewing angle and to direct light including the high priority information at an extended vertical viewing angle. | |
