PrimeSense is best known for its sensing technology, which gives digital devices the ability to observe a scene in three dimensions. The technology is currently used to help power Microsoft's Xbox Kinect.
The acquisition has sparked speculation that Apple is planning to develop its own motion-sensing device, with rumours centring on some form of gesture control for the long-rumoured Apple TV.
An Apple spokesperson commented: “Apple buys smaller technology companies from time to time, and we generally do not discuss our purpose or plans.”
