Optical imaging lens set and electronic device comprising the same

摘要

An optical imaging lens set includes: a first lens element with positive refractive power having an image-side surface with a convex part in a vicinity of a circular periphery of the first lens element, a second lens element having an object-side surface with a convex part in a vicinity of a circular periphery of the second lens element, a third lens element having an object-side surface with a concave part in a vicinity of a circular periphery of the third lens element, a fourth lens element having a concave object-side surface, and a plastic fifth lens element having an image-side surface with a concave part in a vicinity of the optical axis. The air gap between the second lens element and the third lens element G23, and the air gap between the third lens element and the fourth lens element G34, satisfied the relation 1.40≦G23/G34.

主权项

1. An optical imaging lens set, from an object side toward an image side in order along an optical axis comprising:
a first lens element with positive refractive power, having a first image-side surface facing toward said image side and said first image-side surface having a convex part in a vicinity of a circular periphery of said first lens element; a second lens element having a second object-side surface facing toward said object side and said second object-side surface having a convex part in a vicinity of a circular periphery of said second lens element; a third lens element having a third object-side surface facing toward said object side and said third object-side surface having a concave part in a vicinity of a circular periphery of said third lens element; a fourth lens element having a fourth object-side surface facing toward said object side and said fourth object-side surface being a concave surface; and a plastic fifth lens element having a fifth image-side surface facing toward said image side and said fifth image-side surface having a concave part in a vicinity of said optical axis,wherein said optical imaging lens set exclusively has five lens elements with refractive power, comprises an air gap with a thickness G23 and between said second lens element and said third lens element along said optical axis as well as an air gap with a thickness G34 and between said third lens element and said fourth lens element along said optical axis, and satisfies a relationship 1.40≦G23/G34.