OPTICAL IMAGING LENS AND ELECTRONIC DEVICE COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Oct 6, 2014
filing date -
Mar 13, 2014
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Abandoned
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Abstract
An optical imaging lens includes: a first, second, third and fourth lens element, the first lens element having an image-side surface with a convex portion in a vicinity of the optical axis, the second lens element having an object-side surface with a concave portion in a vicinity of its periphery, and an image-side surface with a concave portion in a vicinity of its periphery, the third lens element having an object-side surface with a concave portion in a vicinity of its periphery, the fourth lens element having an object-side surface with a concave portion in a vicinity of the optical axis, and an image-side surface with a concave portion in a vicinity of the optical axis, wherein the optical imaging lens set does not include any lens element with refractive power other than said first, second, third and fourth lens elements.
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