Patent ID: 8711492

Claim:
A monofocal photographing lens assembly comprising, in order from an object side to an image side: a first lens element with negative refractive power having a concave image-side surface; a second lens element with refractive power; a third lens element with refractive power; a fourth lens element with refractive power; a fifth lens element with negative refractive power; and a sixth lens element with positive refractive power having a convex image-side surface; wherein a sum of central thicknesses of the first through sixth lens elements is ΣCT, an axial distance between an object-side surface of the first lens element and the image-side surface of the sixth lens element is Td, a focal length of the monofocal photographing lens assembly is f, a focal length of the first lens element is f1, an f-number of the monofocal photographing lens assembly is Fno, and the following relationships are satisfied: 1.0 <Td/ΣCT< 1.35; −1.5< f/f 1<−0.6, and 1.5 <Fno< 3.0.