Patent ID: 8755131

Claim:
An optical lens assembly for capturing images, comprising, in sequence along an optical axis: a prism, being a total reflection prism, wherein the prism is a lens close to an object and the prism has an incident optical surface, a reflecting surface and an exit optical surface, and wherein the reflecting surface is a mirror surface formed by a total reflection coating; a first lens group having negative focal power, and comprising at least one lens having negative focal power; a second lens group having positive focal power, and comprising at least one lens having an aspherical optical surface; a third lens group having positive focal power, and comprising at least one lens having positive focal power and at least one lens having negative focal power; and a fourth lens group having positive focal power, and comprising at least one lens having an aspherical optical surface, wherein the second lens group has a focal length f 2 , the third lens group has a focal length f 3 , and the optical lens assembly for capturing images satisfies the following relation: 0.4 <f 3 /f 2 <0.7.