Image lens assembly system

摘要

An image lens assembly system 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, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has refractive power. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, and has at least one surface being aspheric. The seventh lens element with refractive power is made of plastic material and has a concave image-side surface, wherein the image-side surface thereof changes from concave in a paraxial region thereof to convex in a peripheral region thereof, and at least one surface thereof is aspheric.

主权项

1. An image lens assembly system comprising, in order from an object side to an image side:
a first lens element having refractive power; 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, and having at least one of an object-side surface and an image-side surface being 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 the image lens assembly system has a total of seven lens elements with refractive power, there is an air gap between two adjacent surfaces of any two adjacent lens elements of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element, a maximal field of view of the image lens assembly system is FOV, and the following relationship is satisfied:
70 degrees