Optical imaging lens and eletronic device comprising the same

An optical imaging lens set, from an object side toward an image side in order along an optical axis comprising:

• a first lens element, having a first image-side surface facing toward said image side, and said first image-side surface having a concave part in a vicinity of a circular periphery of said first lens element;
• a second lens element, having a second object-side surface facing toward said object side, and said second object-side surface having a convex part in a vicinity of a circular periphery of said second lens element;
• a third lens element, having a third image-side surface facing toward said image side, and said third image-side surface having a convex part in a vicinity of a circular periphery of said third lens element;
• an aperture stop;
• a fourth lens element with positive refractive power;
• a fifth lens element, having a fifth object-side surface facing toward said object side, and said fifth object-side surface having a concave part in a vicinity of circular periphery of said fifth lens element;
• and
• a sixth lens element, having a sixth image-side surface facing toward said image side, and said sixth image-side surface having a convex part in a vicinity of a circular periphery of said sixth lens element;
• wherein the optical imaging lens set not including any lens element with refractive power other than said first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element.