Zoom lens and image pickup apparatus including zoom lens
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United States of America Patent
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May 30, 2017
Grant Date -
Nov 13, 2014
app pub date -
May 7, 2014
filing date -
May 10, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A zoom lens includes, in order from object side to image side, a first lens unit having positive refractive power; a second lens unit having negative refractive power; a third lens unit having positive refractive power; and a rear lens group including one or more lens units. During zooming, three or more lens units move to change an interval between adjacent lens units. The third lens unit includes, in order from object side to image side, a first lens subunit having positive refractive power, a second lens subunit having negative refractive power, and a third lens subunit having positive refractive power. The second lens subunit moves in a direction having a component perpendicular to the optical axis regarding image blurring correction, a focal length of the zoom lens at the telephoto end and a focal length of the third lens unit are set to satisfy specific mathematical conditions.
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