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. 25, 2019
Filed:
Dec. 04, 2017
Applicant:
Navitar Industries, Llc, Rochester, NY (US);
Inventors:
Russell Hudyma, San Ramon, CA (US);
Michael Thomas, Woburn, MA (US);
Arash Ghorbani, Auburn, CA (US);
Assignee:
Navitar Industries, LLC, Rochester, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/16 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01); G02B 13/16 (2006.01); G02B 15/167 (2006.01);
U.S. Cl.
CPC ...
G02B 15/16 (2013.01); G02B 13/0095 (2013.01); G02B 13/16 (2013.01); G02B 15/167 (2013.01); G02B 27/0025 (2013.01);
Abstract
A projection zoom lens assembly for a digital cinema projection system includes three optical groups. A first optical group includes one or more wide angle lenses for projecting digital cinema images. A second optical group includes a set of zoom optical groups each comprising two or more lenses, including a first independently movable zoom group, a second independently movable zoom group, and a third zoom group. A third optical group includes multiple lenses for receiving images for projection.