Patent ID: 7957076
Filing Date: 2011-06-07
Classification: G02B

Abstract:
1. An optical lens system for taking image 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 concave image-side surface, the object-side and the image-side surfaces of the first lens element being aspheric; a second lens element with positive refractive power having a convex object-side surface and a concave image-side surface, the object-side and the image-side surfaces of the second lens element being aspheric; the first lens element and the second lens element made of plastic material; an aperture stop located between an object to be photographed and the first lens element; a radius of curvature of the object-side surface of the first lens element being R and in the optical lens system for taking image, the number of lens elements with refractive power being only two.