Imaging optical lens assembly, imaging apparatus and electronic device

An imaging optical lens assembly, comprising:

• an aperture stop having a fixed elliptical shape, with a major axis and a minor axis;
• a plurality of lens elements, wherein a number of the lens elements is at least three and at most seven;
• and
• a lens barrel, wherein an outer diameter of the lens barrel comprises at least two cut sides;
• wherein a major axis diameter of the aperture stop is ESDX, a minor axis diameter of the aperture stop is ESDY, a focal length of the imaging optical lens assembly is f, one of the lens elements closest to an object side is a first lens element, an axial distance between an object-side surface of the first lens element and an image surface is TL, and the following conditions are satisfied:
• 1.08<ESDX/ESDY;
• and
• TL/f<1.20.