PHOTOGRAPHING LENS OPTICAL SYSTEM
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United States of America Patent
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May 19, 2016
app pub date -
Nov 12, 2015
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Nov 12, 2015
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Abstract
Provided is a photographing lens optical system achieving high performances with low expenses. The lens optical system includes a first lens, a second lens, a third lens, and a fourth lens sequentially arranged between an object and an image sensor on which an image of the object is formed from the object side, and an aperture disposed between the object and the fifth lens, wherein the first to fourth lenses respectively have positive, negative, positive, positive, and negative refractive powers.
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