Imaging lens and electronic apparatus having the same
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United States of America Patent
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Aug 22, 2017
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app pub date -
Apr 13, 2015
filing date -
Mar 30, 2012
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Abstract
An optical imaging lens includes, first, second, third, fourth and fifth lens elements arranged sequentially from an object side to an image side along an optical axis. The first lens element has a positive refractive power and the object-side surface of the first lens element comprises a convex portion in a vicinity of its periphery. The image-side surface of the second lens element comprises a concave portion in a vicinity of the optical axis. The object-side surface of the third lens element comprises a concave portion in a vicinity of its periphery. The image-side surface of the fourth lens element comprises a convex portion in a vicinity of the optical axis. The image-side surface of the fifth lens element comprises a concave portion in a vicinity of the optical axis and for the optical imaging lens as a whole, only the five lens elements have refractive power.
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