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:
Aug. 14, 2012
Filed:
Jun. 29, 2009
Applicants:
Malcolm J. Northcott, Felton, CA (US);
J. Elon Graves, Los Gatos, CA (US);
Dan Potter, Campbell, CA (US);
Inventors:
Malcolm J. Northcott, Felton, CA (US);
J. Elon Graves, Los Gatos, CA (US);
Dan Potter, Campbell, CA (US);
Assignee:
AOptix Technologies, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/47 (2006.01); H04N 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical system includes an active focus element that maintains an image in focus over a range of object distances. The active focus element and aperture stop are positioned such that the image scale and the image spatial resolution are also invariant (or at least have a reduced sensitivity) with respect to object distance.