Aperture module and camera module including the same

An aperture module, comprising:

• a housing having an internal space;
• a lens driving module disposed in the internal space of the housing and configured to be driven in at least one of an optical axis direction and a direction that is perpendicular to the optical axis direction;
• and
• an aperture module disposed at a front end of the lens driving module, and configured to adjust a size of an incident hole,
• wherein the aperture module comprises:
• a base comprising a guide slot and a protruding pivot pin disposed in a corner region of the base,
• a blade unit comprising a plurality of blades each having a driving hole that overlaps at least a portion of the guide slot, and configured to pivot with respect to the pivot pin to form an aperture of a first diameter and an aperture of a second diameter, and
• an aperture driver comprising a driving pin configured to penetrate the guide slot and the driving hole, and configured to move along the guide slot,
• wherein the driving hole comprises a first end portion that contacts the driving pin when the aperture of the first diameter is formed, a second end portion that faces the first end portion and contacts the driving pin when the aperture of the second diameter is formed, and a central portion that connects the first end portion and the second end portion, and
• wherein a width of a central portion of the driving hole in a first direction that is perpendicular to a center line that connects two points between the first end portion and the second end portion by a maximum distance is greater than a maximum width of the first end portion and a maximum width of the second end portion.