Imaging lens, and electronic apparatus including the same
AssigneeGenius Electronic Optical Co., Ltd.
InventorsShih-Han Chen, Chung-Chih Chang, Yita Chiang
Life of this patent
Estimating the term…
Abstract
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.
Claims20
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 the imaging lens, each of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element having an object-side surface facing toward the object side, and an image-side surface facing toward the image side, wherein:
- the object-side surface of the second lens element has a concave portion in a vicinity of the optical axis and a convex portion in a periphery of the second lens element;
- the image-side surface of the third lens element has a concave portion in a vicinity of the optical axis of the third lens element;
- the fourth lens element has a positive refractive power;
- the object-side surface of the fifth lens element has a concave portion in a vicinity of a periphery of the fifth lens element;
- and
- the imaging lens does not include any lens element with refractive power other than the first lens element, the second lens element, the third lens element, the fourth lens element, and the fifth lens element.
Dependencies are inferred from the claim text.