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.

Date of Patent:
Jun. 13, 2023

Filed:

Nov. 07, 2018
Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Yutaka Makino, Otokuni-gun, JP;

Takashi Sugiyama, Otokuni-gun, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01); G02B 9/12 (2006.01); G02B 13/04 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0035 (2013.01); G02B 9/12 (2013.01); G02B 9/60 (2013.01); G02B 13/0045 (2013.01); G02B 13/04 (2013.01); G02B 13/18 (2013.01);
Abstract

An imaging lens system and an imaging device capable of capturing a long-distance image in a central direction of an optical axis with high resolution and capturing a neighborhood image at a wide angle. An imaging lens system includes, in order from an object side: a first lens group including at least a first lens, a second lens, and a third lens; an aperture stop (STOP); and a second lens group including two or more lens and having a positive combined power, an image side of the first lens has a concave surface, a combined focal length of the first lens and the second lens is negative, the third lens is a lens having a positive power, an object side of the first lens has an aspherical surface, and an incident-side surface (object side) of the first lens has an inflection point.


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