Mobile device and optical imaging lens thereof
AssigneeGenius Electronic Optical Co., Ltd.
InventorsShih-han Chen, Yita Chiang, Feng Chen
Life of this patent
Estimating the term…
Abstract
Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
Claims17
An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising an aperture stop, first, second, third, fourth and fifth lens elements, each of said first, second, third, fourth and fifth lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
- said first lens element comprises positive refracting power, and said image-side surface thereof comprises a convex portion in a vicinity of a periphery of the first lens element;
- said second lens element comprises negative refracting power, said object-side surface thereof comprises a convex portion in a vicinity of the optical axis, and said image-side surface thereof comprises a concave portion in a vicinity of a periphery of the second lens element;
- said object-side surface of said third lens element comprises a concave portion in a vicinity of a periphery of the third lens element, and said image-side surface of said third lens element comprises a convex portion in a vicinity of the optical axis;
- said object-side surface of said fourth lens element is a concave surface;
- said image-side surface of said fifth lens element comprises a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of a periphery of the fifth lens element;
- and
- the optical imaging lens as a whole comprises only the five lens elements having refracting power.
Dependencies are inferred from the claim text.