Patent ID: 9036276
Filing Date: 2015-05-19
Classification: G02B

Abstract:
1. An optical imaging lens set, from an object side toward an image side in order along an optical axis comprising: an aperture stop; a first lens element having a first image-side surface facing toward said image side and said first image-side surface having a convex 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 said optical axis; a third lens element having a third object-side surface facing toward said object side and said third object-side surface having a concave part in a vicinity of said optical axis; a fourth lens element with positive refractive power; and a fifth lens element made of plastic, having a fifth image-side surface facing toward said image side and said fifth image-side surface having a concave part in a vicinity of said optical axis and 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 said optical axis, and the optical imaging lens set as a whole having only the first, the second, the third, the fourth and the fifth lens element having refracting power, wherein an air gap has a thickness G