ZOOM LENS AND IMAGE DEVICE USING THE SAME
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United States of America Patent
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Mar 15, 2016
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Dec 28, 2015
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Abstract
A zoom lens includes a first lens group having a negative refractive power, a second lens group having a positive refractive power, a third lens group having a negative refractive power, and an image plane. The first lens group, the second lens group, the third lens group, and the image plane are arranged in that order from an object side to an image side of the zoom lens. The first lens group includes a first lens having a positive refractive power and a second lens having a negative refractive power. The first lens and the second lens are arranged in that order from an object side to an image side. An image device using the zoom lens is also provided.
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