Imaging Lens Having Five Lens Elements, and Electronic Apparatus Having the Same

An imaging lens includes: a first lens element having a positive refracting power, and having a convex object-side surface facing toward an object side; a second lens element having a negative refracting power, and having a concave image-side surface facing toward an image side; a third lens element...

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Bibliographic Details
Main Authors HSU SHENG-WEI, LEE POCHE, CHANG KUO-WEN
Format Patent
LanguageEnglish
Published 03.10.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:An imaging lens includes: a first lens element having a positive refracting power, and having a convex object-side surface facing toward an object side; a second lens element having a negative refracting power, and having a concave image-side surface facing toward an image side; a third lens element having a negative refracting power; a fourth lens having a convex image-side surface facing toward the image side; and a fifth lens element having an image-side surface with concave and convex portions and facing toward the image side. Absolute value of a difference between Abbe numbers of the second and third lens elements is less than 10. A quotient of a thickness of the fourth lens element divided by a sum of widths of air gap among the lens elements ranges between 0.5 and 1.
Bibliography:Application Number: US201213617304