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:
Jun. 22, 2010
Filed:
Mar. 28, 2008
Kenichi Sato, Saitama, JP;
Minoru Taniyama, Saitama, JP;
Kenichi Sato, Saitama, JP;
Minoru Taniyama, Saitama, JP;
Fujinon Corporation, Saitama-shi, JP;
Abstract
An imaging lens includes, in order from an object side, a first lens having a positive refractive power and having a meniscus shape with a convex surface directed to the object side thereof, a second lens having a concave object-side surface and a third lens having a negative refractive power in a vicinity of an optical axis. Each of the second and third lenses has at least one aspheric surface. The following conditional expressions are satisfied:0.8<1/<1.2  (1)11<|2/  (2)0.04<<0.09  (3)/2<0.9  (4)where