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:
Sep. 02, 2008
Filed:
Jul. 01, 2004
Susumu Yamaguchi, Hachioji, JP;
Eigo Sano, Hino, JP;
Susumu Yamaguchi, Hachioji, JP;
Eigo Sano, Hino, JP;
Konica Minolta Opto, Inc., Hachioji, JP;
Abstract
An image pickup lens includes in order from an object side of the image pickup lens: a first lens having positive refractive power whose convex surface faces the object side of the image pickup lens; an aperture stop; a meniscus shaped second lens having positive refractive power whose convex surface faces an image side of the image pickup lens; and a third lens having negative refractive power whose concave surface faces the image side of the image pickup lens, wherein the image pickup lens satisfies the following conditional expressions:0.81/<2.0  (1)20<((ν1+ν2)/2)−ν3<70  (2)where fis a focal length of the first lens, f is a focal length of a total system of the image pickup lens, and νand νare the Abbe constants of the first to third lenses respectively.