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:
Mar. 26, 2002
Filed:
Apr. 24, 2001
Applicant:
Inventors:
Biljana Tadic-Galeb, Thousand Oaks, CA (US);
Robert E. Fischer, Westlake Village, CA (US);
David Kappel, San Diego, CA (US);
Neil L. Condra, The Woodlands, TX (US);
Ann M. Muscato, Houston, TX (US);
Sean M. Donnelly, Houston, TX (US);
Assignee:
Compaq Computer Corportion, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/00 ; G02B 2/710 ; G02B 1/06 ;
U.S. Cl.
CPC ...
G02B 3/00 ; G02B 2/710 ; G02B 1/06 ;
Abstract
Projection lenses and projection lens systems are telecentric between an illumination subsystem and a set of imagers. The lenses and systems can exhibit color fringing correction, uniform imager illumination, athermalization, and component articulation for improved imaging. The lenses and systems may be employed in display apparatuses, such as folded display apparatuses that have decreased footprint size, but long effective projection lengths.