IMAGING LENS AND IMAGING UNIT
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United States of America Patent
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Jul 2, 2015
app pub date -
Dec 15, 2014
filing date -
Dec 26, 2013
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Abstract
An imaging lens includes: a first lens having positive refractive power; a second lens having negative refractive power near an optical axis; a third lens having an object-sided surface that is a convex surface near the optical axis, the third lens having positive refractive power near the optical axis; a fourth lens having one of positive refractive power and negative refractive power near the optical axis; and a fifth lens having positive refractive power near the optical axis. The first to fifth lenses are arranged in order from an object side. The following Conditional expression (1) is satisfied,
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