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:
Feb. 08, 2005
Filed:
Jan. 07, 2003
Applicant:
Melvyn H. Kreitzer, Cincinnati, OH (US);
Inventor:
Melvyn H. Kreitzer, Cincinnati, OH (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B003/00 ; G02B013/22 ; G02B017/00 ; G03B021/26 ;
U.S. Cl.
CPC ...
Abstract
Projection lenses for use with pixelized panels (PP) are provided. The projection lenses have a negative first unit (U) separated from a positive second unit (U) by a reflective surface (RS) which folds the lens' optical axis. The lenses are telecentric on the short conjugate side, have a large field of view in the direction of the long conjugate, and have low aberration levels, including, in particular, low levels of lateral color.
Kreitzer, Melvyn. (2005). Folded, telecentric projection lenses for use with pixelized panels (U.S. Patent No. 6853493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6853493
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile