Patent ID: 9250424
Filing Date: 2016-02-02
CPC Classification: G02B

Claim Text:
1. A zoom lens that includes a plurality of lens units having a negative refractive power and that changes a distance between adjacent lens units during zooming, the zoom lens comprising: a lens unit Lv positioned at the most object side of the plurality of lens units having the negative refractive power; a lens unit Lp positioned at the most object side of lens units having a positive refractive power, the lens units being positioned at an image side of the lens unit Lv; a lens unit Fp having a positive refractive power positioned at an image side of the lens unit Lp, the lens unit Fp being configured to move during focusing; and a lens unit Fn having a negative refractive power positioned at the image side of the lens unit Lp, the lens unit Fn being configured to move during focusing, wherein the lens unit Fp and the lens unit Fn move in the same direction in a first zoom range during focusing from infinity to minimum object distance, and wherein the lens unit Fp moves to an object side and the lens unit Fn moves to an image side in a second zoom range which is positioned at a telephoto side relative to the first zoom range during focusing from infinity to minimum object distance.