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:
Dec. 28, 2004
Filed:
Jul. 15, 2003
Applicant:
Inventor:
Isamu Kaneko, Kawaguchi, JP;
Assignee:
Enplas Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/514 ; G02B 9/04 ; G02B 2/102 ; G02B 3/02 ;
U.S. Cl.
CPC ...
G02B 1/514 ; G02B 9/04 ; G02B 2/102 ; G02B 3/02 ;
Abstract
An imaging lens system includes, in the named order from the side of an object toward an image surface, a light amount diaphragm, a first lens having a positive power with a main power on the side closer to the image surface, a meniscus-shaped second lens having a negative power with a strong concave surface turned toward the image surface. Thus, it is possible to provide the imaging lens system in which a sufficiently high resolution can be obtained, while meeting the demand for a reduction in entire length of an optical system to provide the compactness.