Camera module

A camera module comprising:

• a housing;
• a lens module configured to be movable relative to the housing in an optical axis direction;
• and
• a plurality of guide parts configured to support movement of the lens module,
• wherein the plurality of guide parts comprise:
• a first guide part and a second guide part spaced apart from each other in the optical axis direction and configured to support one side of the lens module;
• and
• a third guide part configured to support another side of the lens module, and
• wherein one or more guide parts among the first guide part to the third guide part comprises:
• a plurality of balls;
• and
• a circulating path in which the plurality of balls are disposed.

A camera module comprising:

• a lens module configured to be disposed in a housing and movable relative to the housing in an optical-axis direction;
• and
• a guide part configured to support movement of the lens module,
• wherein the guide part comprises:
• an accommodating groove;
• a guide protrusion disposed in the accommodating groove and extending in a first-axis direction perpendicular to the optical-axis direction;
• and
• a plurality of balls configured to circulate continuously about the guide protrusion.