Optical imaging lens assembly, image capturing unit and electronic device

An optical imaging lens assembly comprising seven lens elements, the seven lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element;

• each of the seven lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
• wherein the first lens element has positive refractive power, the seventh lens element has negative refractive power, the object-side surface of the seventh lens element is concave in a paraxial region thereof, at least one surface among the object-side surfaces and the image-side surfaces of the seven lens elements has at least one inflection point, each of at least two of the seven lens elements has an Abbe number smaller than 20.0, and an absolute value of a curvature radius of the object-side surface of the seventh lens element is smaller than an absolute value of a curvature radius of the image-side surface of the seventh lens element;
• wherein an axial distance between the image-side surface of the seventh lens element and an image surface is BL, an axial distance between the object-side surface of the first lens element and the image-side surface of the seventh lens element is TD, and the following condition is satisfied:
• 0<BL/TD<0.35.