Imaging lens module, camera module and electronic device having a plurality of columnar structures for reducing reflection

Abstract

An imaging lens module has an image surface and includes an optical lens assembly, a plurality of monomer structures and a cover member. The optical lens assembly is disposed on an object side of the image surface and defines an optical axis. The optical lens assembly includes a light-blocking element, which includes a light-blocking portion. The light-blocking portion is disposed closer to the optical axis than a portion of the light-blocking element other than the light-blocking portion thereto. The monomer structures are disposed on the object side of the image surface, and each of the monomer structures is extended along a direction parallel to the optical axis. The cover member is disposed on an object side of the optical lens assembly, and the optical axis passes through the cover member. The monomer structures are disposed on the light-blocking portion of the light-blocking element.