Imaging lens assembly

An imaging lens assembly comprising, in order from an object side to an image side:

• a first lens element with positive refractive power having a convex object-side surface;
• a second lens element with negative refractive power having a concave image-side surface;
• a third lens element having refractive power;
• a fourth lens element having refractive power;
• a fifth lens element having refractive power;
• and
• a sixth lens element with refractive power having a concave image-side surface at a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one convex shape at a an off-axis region thereof, and both of the object-side surface and the image-side surface of the sixth lens element are aspheric;
• wherein the imaging lens assembly has a total of six non-cemented lens elements with refractive power and further includes a stop located between an imaged object and the first lens element, wherein a distance in parallel with an optical axis from a maximum effective diameter position on the object-side surface of the first lens element to an axial vertex on the object-side surface of the first lens element is SAG11, a shortest non-axial distance in parallel with the optical axis between the object-side surface of the first lens element and the image-side surface of the first lens element is ET1, a curvature radius of an object-side surface of the second lens element is R3, a curvature radius of the image-side surface of the second lens element is R4, an axial distance between the fifth lens element and the sixth lens element is T56, a central thickness of the sixth lens element is CT6, and the following relationships are satisfied:
• 1.75<SAG11/ET1;
• −0.2<(R3+R4)/(R3−R4)<5;
• and
• 0<T56/CT6<0.65.