IMAGING OPTICAL SYSTEM
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United States of America Patent
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Issued Date -
Jun 9, 2016
app pub date -
Nov 20, 2015
filing date -
Nov 20, 2015
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Abstract
An imaging optical system includes a positive first lens element having a convex surface on the object side, a negative second lens element having a concave surface on the image side, a third lens element, a positive fourth lens element, and a negative fifth lens element provided with at least one aspherical surface that has inflection points other than at an optical axis thereof. The following conditions (1) and (2) are satisfied:
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