PHOTOGRAPHIC LENS OPTICAL SYSTEM
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United States of America Patent
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app pub date -
Jan 27, 2017
filing date -
Jan 28, 2016
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Abstract
Provided are photographic lens optical systems. A photographic lens optical system may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens that are located between an object and an image sensor on which an image of the object is formed and are sequentially arranged from the object. The first lens may have a positive (+) refractive power. The second lens may have a negative (−) refractive power and may have an exit surface concave from the image sensor. The third lens may have a positive (+) refractive power and may have an exit surface convex toward the image sensor. The fourth lens may have a negative (−) refractive power and may have a meniscus shape convex toward the object. The fifth lens may have a positive (+) refractive power and may have an exit surface convex toward the image sensor. The sixth lens may have a negative (−) refractive power and at least one of an incident surface and an exit surface of the sixth lens may have at least one inflection point from a central portion to an edge. A viewing angle FOV of the lens optical system may satisfy 85°
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