Patent ID: 8649115
Filing Date: 2014-02-11
Classification: G02B

Abstract:
1. An optical 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 and a convex image-side surface; a second lens element with refractive power having a concave object-side surface and a convex image-side surface; a third lens element with refractive power having an object-side surface and an image-side surface being aspheric; a fourth lens element with positive refractive power having a convex image-side surface, wherein an object-side surface and the image-side surface of the fourth lens element are aspheric; and a fifth lens element with negative refractive power having a concave image-side surface, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and the fifth lens element has at least one inflection point on at least one of the object-side surface and the image-side surface thereof; wherein a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of the image-side surface of the first lens element is R2, a curvature radius of the object-side surface of the second lens element is R3, a curvature radius of the mage-side surface of the second lens element is R4, a curvature radius of the image-side surface of the third lens element is R6, an axial distance between the third lens element and the fourth lens element is T34, and the following relationships are satisfied: