Patent · US Active

Subminiature imaging optical system

US7742240B2 · kind B2 · utility

2Cited by

2References

7Claims

0Family size

Assignee

SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

Jin Jong Kim · Seojong-myeon, KR
Young Gi Kim · Seoul, KR
Yong Joo JO · Suwon-si, KR

Key dates

Filing date	Feb 29, 2008
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Jun 20, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/18
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.