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. 31, 2010
Filed:
Aug. 16, 2006
Applicant:
Jing Xu, Irvine, CA (US);
Inventor:
Jing Xu, Irvine, CA (US);
Assignee:
Tessera MEMS Technologies, Inc., Arcadia, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01); G02B 9/34 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens system for a miniature camera includes an imager and four cylindrical lenses disposed concentrically on an optical axis of the lens system. The lenses include, in order from a front end of the lens system to a back end thereof, a first lens, a second lens, a third lens and a fourth lens. The first lens has a positive power and aspheric front and back surfaces, the second lens has a negative power and aspheric front and back surfaces, the third lens is made of glass, has a positive power, a plano front surface and a spherical convex back surface, and the fourth lens has a negative power and aspheric front and back surfaces.