Abstract: An assembly for use in a projection system includes a plurality of optical elements, such as one or more mirrors, a light engine, and a screen, and a monolith. The optical elements are coupled to the monolith to provide a central element of reference, thereby enabling alignment based on the central element of reference.
Type:
Grant
Filed:
November 7, 2005
Date of Patent:
August 19, 2008
Assignee:
N-Lighten Technologies
Inventors:
Jon H. Appleby, Kathleen Hannon Davies, Paul D. Frey
Abstract: An arbitrary surface optical element, such as a mirror for use in a rear projection television, includes a non-optical portion and an optical portion. The non-optical portion circumscribes the optical portion and has a thickness greater than the optical portion. Accordingly, the two portions cool at approximately the same rate, thereby minimizing warpage from differential cooling.
Type:
Grant
Filed:
September 20, 2006
Date of Patent:
January 29, 2008
Assignee:
N-Lighten Technologies
Inventors:
William Robert Burnett, Kathleen Hannon Davies, Paul D. Frey, Qing Guo, Charles Chia-ming Chuang, David Daniel Poppell