Patent ID: 8947788
Filing Date: 2015-02-03
Classification: G02B,H04N

Abstract:
1. An image lens assembly system comprising, in order from an object side to an image side: a first lens element with negative refractive power having a convex object-side surface; a second lens element having positive refractive power; a third lens element having refractive power; a fourth lens element having refractive power; a fifth lens element having refractive power; a sixth lens element with refractive power made of plastic material, wherein at least one of an object-side surface and an image-side surface of the sixth lens element is aspheric; and a seventh lens element with refractive power made of plastic material and having a concave image-side surface, wherein the image-side surface of the seventh lens element changes from concave in a paraxial region thereof to convex in a peripheral region thereof, and at least one of an object-side surface and the image-side surface thereof is aspheric; wherein a sum of central thicknesses from the first through seventh lens elements is ΣCT, an axial distance between the object-side surface of the first lens element and the image-side face of the seventh lens element is Td, and the following relationship is satisfied.