Wide-angle lens
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United States of America Patent
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Feb 9, 2016
Grant Date -
Oct 16, 2014
app pub date -
Mar 13, 2014
filing date -
Apr 16, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A wide-angle lens includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is with negative refractive power and includes a concave surface facing the image side. The second lens is a biconcave lens with negative refractive power. The third lens is a biconvex lens with positive refractive power. The fourth lens is a biconvex lens with positive refractive power. The fifth lens is with negative refractive power and includes a concave surface facing the object side.
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