Patent · US Active

Image stabilization zoom lens

US8654447B2 · kind B2 · utility

6Cited by

0References

8Claims

0Family size

Assignee

OLYMPUS IMAGING CORP. · JP

Inventor

Masaru Morooka · Tokyo, JP

Key dates

Filing date	Aug 3, 2012
Grant date	Feb 18, 2014
Priority date	—
Expiry date	Aug 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B15/1461
WIPO fieldOptics
WIPO sectorInstruments

Abstract

During zooming from the wide angle end to the telephoto end, a first lens unit having a positive refractive power is fixed, a second lens unit having a negative refractive power moves toward the image side, a third lens unit having a positive refractive power moves toward the object side, a fourth lens having a negative refractive power unit moves, and a fifth lens unit having a positive refractive power is fixed. The first lens unit includes a reflecting member that bends the optical path by 90 degrees. The entirety of or at least a part of the fifth lens unit is shifted in directions transverse to the optical axis to stabilize a picked-up image when the optical system vibrates. The zoom lens satisfies the predetermined expressions.

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