Patent ID: 9715088
Date: 2017-07-25
CPC Classifications: G02B

Claim:
1. A photographing optical lens system comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element having an image-side surface being convex in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having negative refractive power; a fifth lens element; and a sixth lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being planar or convex in a paraxial region thereof; wherein the photographing optical lens system has a total of six lens elements, a curvature radius of an object-side surface of the third lens element is R5, a curvature radius of an image-side surface of the third lens element is R6, a curvature radius of an object-side surface of the fourth lens element is R7, a curvature radius of the object-side surface of the sixth lens element is R11, a curvature radius of the image-side surface of the sixth lens element is R12, and the following conditions are satisfied: