Image capturing lens assembly, image capturing device and electronic device

摘要

An image capturing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element has refractive power, and an object-side surface and an image-side surface thereof being aspheric. The fourth lens element has negative refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave object-side surface, and the object-side surface and an image-side surface thereof are aspheric.

主权项

1. An image capturing lens assembly comprising, in order from an object side to an image side:
a first lens element with positive refractive power having an object-side surface being convex in the paraxial region thereof; a second lens element; a third lens element, wherein an object-side surface and an image-side surface of the third lens element are aspheric; a fourth lens element having negative refractive power, wherein an object-side surface and an image-side surface of the fourth lens element are aspheric; and a fifth lens element with negative refractive power having an object-side surface being concave in the paraxial region thereof, wherein the object-side surface and an image-side surface of the fifth lens element are aspheric; wherein the image capturing lens assembly has a total of five lens elements, a focal length of the image capturing lens assembly is f, a focal length of the first lens element is f1, a focal length of the fourth lens element is f4, a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of an image-side surface of the first lens element is R2, a central thickness of the first lens element is CT1, and the following relationships are satisfied:
3.4<(f/R1)−(f/R2)+((f×CT1)/(R1×R2))<7.5;−1.0