Imaging Lens, and Electronic Apparatus Including the Same

摘要

An imaging lens includes first to fifth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant optical parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.

主权项

1. An imaging lens comprising a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element arranged in order from an object side to an image side along an optical axis of said imaging lens, each of said first lens element, said second lens element, said third lens element, said fourth lens element and said fifth lens element having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
said object-side surface of said first lens element has a convex portion in a vicinity of the optical axis; said second lens element has a positive refractive power, said object-side surface of said second lens element having a convex portion in a vicinity of the optical axis; said object-side surface of said third lens element has a concave portion in a vicinity of the optical axis; said fifth lens element is made of a plastic material, said image-side surface of said fifth lens element having a concave portion in a vicinity of the optical axis; said imaging lens does not include any lens element with refractive power other than said first lens element, said second lens element, said third lens element, said fourth lens element and said fifth lens element; and said imaging lens satisfies 25≦|V1−V2|, where V1 represents an Abbe number of said first lens element, and V2 represents an Abbe number of said second lens element.