MOBILE DEVICE AND OPTICAL IMAGING LENS THEREOF

摘要

The present invention provides a camera device and an optical imaging lens thereof. The optical imaging lens comprises six lens elements positioned in an order from an object side to an image side and an aperture stop positioned between the third and fourth lens elements. Through controlling the convex or concave shape of the surfaces of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

主权项

1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising a first lens element, a second lens element, a third lens element, an aperture stop, a fourth lens element, a fifth lens element and a sixth lens element, each of said first, second, third, fourth, fifth and sixth lens elements having refracting power, an object-side surface facing toward the object side and an image-side surface facing toward the image side and a central thickness defined along the optical axis, wherein:
said object-side surface of said first lens element comprises a convex portion in a vicinity of the optical axis; said object-side surface of said second lens element comprises a convex portion in a vicinity of the optical axis; said image-side surface of said fourth lens element comprises a convex portion in a vicinity of a periphery of the fourth lens element; said object-side surface of said fifth lens element comprises a convex portion in a vicinity of a periphery of the fifth lens element; said object-side surface of said sixth lens element comprises a concave portion in a vicinity of the optical axis; and said optical imaging lens comprises no other lenses having reflecting power beyond the six lens elements.