IMAGING LENS
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United States of America Patent
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Apr 4, 2017
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Apr 4, 2016
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Abstract
An imaging lens having from an object to image side, a first lens having positive refractive power and a convex surface facing the object side, a second lens having a meniscus shape with negative refractive power and a concave surface facing the image side, a third lens having positive refractive power and a convex surface facing the object side, a fourth lens having a meniscus shape with positive refractive power and a convex surface facing the image side, and a fifth lens having negative refractive power and a concave surface facing the image side as a double-sided aspheric lens. A pole point at an off-axial point is provided on the image-side surface, and a below conditional expression (1) is satisfied: (1) 40
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