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. 22, 2010

Filed:

Feb. 29, 2008
Applicants:

Jin Jong Kim, Gyunggi-do, KR;

Young Gi Kim, Gyunggi-do, KR;

Yong Joo JO, Gyunggi-do, KR;

Inventors:

Jin Jong Kim, Gyunggi-do, KR;

Young Gi Kim, Gyunggi-do, KR;

Yong Joo Jo, Gyunggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/14 (2006.01); G02B 3/02 (2006.01); G02B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a subminiature imaging optical system utilizing only three sheets of lenses having positive, negative and positive refractive powers, respectively. The subminiature imaging optical system comprising, sequentially from an object side: a first lens having a meniscus shape with a convex object-side surface, the first lens having at least one aspherical surface and positive refractive power; a second lens having a meniscus shape with a convex image-side surface, the second lens having at least one spherical surface and negative refractive power; and a third lens having both surfaces formed of an aspherical surface and having positive refractive power.


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