Changes

'''Augmented reality glasses''' are electronic eyewear that show virtual content in 3D registered to the real world. AR glasses are a type of [[smart glasses]]. Typically they are optical-see-through.

'''Augmented reality glasses''' are electronic eyewear that show virtual 3D objects in the real world to the viewer. Typically they are optical-see-through.

AR glasses require a display such as an [[optical see-through display]], a 3D tracking system such as an [[ultrasonic tracking system]], and a connected computer system.

AR glasses require a display such as an [[optical see-through display]], a 3D tracking system such as an [[ultrasonic tracking system]], and a connected computer system.