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:
Jan. 03, 2012
Filed:
Jun. 23, 2009
Applicant:
Jean-pierre Lusinchi, Suzhou, CN;
Inventor:
Jean-Pierre Lusinchi, Suzhou, CN;
Assignee:
Ether Precision, Inc., , KY;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 3/00 (2006.01); G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An imaging device comprises a lens barrel having a lens opening, and a lens positioned in the lens opening of the lens barrel, the lens having an optical center, a focal length F, an aperture diameter D, and an aperture number F=F/D. An image sensor comprises an array of light sensing pixels that each have a dimension P, the sensor spaced apart a distance S from the optical center of the lens such that a focus offset gap X=F−S. The pixel dimension P and aperture number Fare selected such that 2·P·F≧X.