Imaging lens module and electronic device

An imaging lens module, comprising:

• at least one lens element, having an optical axis;
• a lens carrier, accommodating the at least one lens element, the lens carrier comprising:
• an object-side portion, having:
• an object-side opening configured for light entering the imaging lens module, wherein the object-side portion forms a minimum opening of the lens carrier at the object-side opening;
• a guiding structure, located further away from the optical axis than the minimum opening;
• a topmost surface, being a surface of the object-side portion closest to an object side;
• at least one slot, extending away from the topmost surface along a direction parallel to the optical axis;
• a first lateral wall, located closer to the optical axis than the guiding structure;
• and
• a second lateral wall, located in the at least one slot, wherein the second lateral wall is located closer to the optical axis than the first lateral wall;
• an image-side portion, opposite to the object-side portion;
• and
• a tubular portion, connected to and located between the object-side portion and the image-side portion;
• and
• a variable through hole assembly, disposed on the object-side portion, the variable through hole assembly comprising:
• a plurality of rotatable blades, rotatably disposed about the optical axis, wherein the guiding structure guides movement of the plurality of rotatable blades, the plurality of rotatable blades are configured to form a through hole, and a size of the through hole is variable;
• and
• a blade driving part, comprising:
• a rotatable member, connected to the plurality of rotatable blades, wherein the rotatable member drives the plurality of rotatable blades to vary the size of the through hole;
• at least two rolling members, disposed between the guiding structure and the rotatable member along a direction parallel to the optical axis so as to support rotation motion of the rotatable member, wherein the at least two rolling members are located further away from the optical axis than the first lateral wall;
• at least one driving magnet;
• and
• at least one driving coil, wherein the at least one driving magnet and the at least one driving coil are disposed opposite to each other along a direction parallel to the optical axis;
• wherein the object-side portion and the image-side portion form an air sleeve therebetween, and the air sleeve is located further away from the optical axis than the tubular portion;
• wherein the rotatable member is located between the plurality of rotatable blades and the guiding structure of the object-side portion;
• wherein each of the at least two rolling members has a rolling center, a distance between the rolling center and the topmost surface along a direction parallel to the optical axis is h1, a height of the first lateral wall along a direction parallel to the optical axis is h2, and the following condition is satisfied:
• 1
• ≤
• h
• ⁢
• 2
• /
• h
• ⁢
• 1
• ≤
• 2.95
• .