Image pickup lens, image pickup device having image pickup lens, and portable terminal having image pickup device

An image pickup lens comprises a first lens (L1) having a positive refractive power, an aperture stop (s3), a second lens (L2) having a negative refractive power and having a concave surface facing the image side, a third lens (L3) having a positive refractive power, and a fourth lens (L4) having a...

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Bibliographic Details
Main Authors TANAKA HIROAKI, SANO EIGO, MATSUSAKA KEIJI
Format Patent
LanguageChinese
English
Published 16.05.2012
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An image pickup lens comprises a first lens (L1) having a positive refractive power, an aperture stop (s3), a second lens (L2) having a negative refractive power and having a concave surface facing the image side, a third lens (L3) having a positive refractive power, and a fourth lens (L4) having a negative refractive power and having a concave surface facing the image side. The image pickup lens satisfies predetermined formulae.
Bibliography:Application Number: CN201080024550