Patent ID: 8717687

Claim:
An image lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power; a third lens element with refractive power having a concave image-side surface, wherein at least one surface of an object-side surface and the image-side surface of the third lens element is aspheric; a fourth lens element with positive refractive power made of plastic material, wherein at least one surface of an object-side surface and an image-side surface of the fourth lens element is aspheric; and a fifth lens element with negative refractive power made of plastic material and having a concave image-side surface, wherein at least one surface of an object-side surface and the image-side surface of the fifth lens element is aspheric, and the fifth lens element has at least one inflection point formed on the image-side surface thereof; wherein a focal length of the image lens assembly is f, and a diameter of an entrance pupil of the image lens assembly is EPD, the following relationship is satisfied: 1.4 <f/EPD≦ 1.9.