Wide angle six-piece lens

A wide angle six-piece lens, from an object side to an image side, sequentially comprising:

• a first lens (L1), having a negative refractive power, and including an object side having a radius of curvature greater than a radius of curvature of its image side;
• a second lens (L2), having a positive refractive power, and including an object side having a radius of curvature smaller than a radius of curvature of its image side, wherein the radius of curvature of the object side of the second lens is in a positive value;
• an aperture (S);
• a third lens (L3), having a positive refractive power, and including a concave object side and a convex image side, wherein the radius of curvature of the object side of the third lens is in a negative value;
• a fourth lens (L4), having a positive refractive power, and including an object side having a radius of curvature greater than a radius of curvature of its image side, wherein the radius of curvature of the object side of the fourth lens is in a positive value;
• a fifth lens (L5), having a negative refractive power, and including an object side having a radius of curvature smaller than a radius of curvature of its image side, wherein the radius of curvature of the object side of the fifth lens is in a negative value;
• and
• a sixth lens (L6), having a positive refractive power, and including an object side having a radius of curvature greater than a radius of curvature of its image side, wherein the radius of curvature of the object side of the sixth lens is in a positive value;
• wherein a maximum distortion of an image generated by the wide angle six-piece lens along the image height is smaller than 8.5%;
• wherein, an overall effective focal length of the wide angle six-piece lens is f, a focal length of the third lens (L3) is f3, and an equation below is further satisfied:
• 0.29<f/f3<0.36.