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. 17, 2009
Filed:
Sep. 10, 2004
Kyoichi Miyazaki, Osaka, JP;
Tomoko Iiyama, Osaka, JP;
Kazutake Boku, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The object is to obtain an imaging lens system having an entire lens system downsized, being excellent in portability, and being compatible with a large number of pixels by which a favorable image quality is provided. Provided is an imaging lens system for forming an optical image of an object on a light receiving surface of a solid-state image sensor, comprising, in order from an object side, an aperture diaphragm (), a first lens element () having a positive optical power and a convex surface on an image side, a second lens element () having a negative optical power and being a meniscus lens whose object side has a concave shape, and a third lens element () having a positive optical power and being a meniscus lens whose object side has a convex shape, in which the following conditional expressions are satisfied:1.92|<3.50.93|<2.0−2.5<()/()<−1.4−1.7<()/()<−1.0.