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:
Apr. 06, 2004
Filed:
Aug. 07, 2001
Applicant:
Inventor:
Isamu Kaneko, Kawaguchi, JP;
Assignee:
Enplas Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 3/08 ;
U.S. Cl.
CPC ...
G02B 3/08 ;
Abstract
In an image pickup lens including a lens body, at least one of faces of the lens body is formed into an aspherical shape, and at least one of a first face of the lens body adjacent an object and a second face of said lens body adjacent an image pickup surface is a Fresnel face. Thus, the image pickup lens can be reduced in size, and the optical characteristics of the image pickup lens can be enhanced remarkably in a simple structure.