Augmented Reality (AR) means a computer based expansion of the perceptible reality. With this technology information can be presented visually and audibly. The real environment is available and is enhanced by an AR experience such as a 3D figure, a video or something else.
Virtual Reality (VR) describes the representation of an artificially created world. With the help of computers a new world or environment is created in which the user can immerse himself. The use of image and sound creates the feeling of a new reality for the user even more intensely than with AR.
Mixed Reality is understood as the addition of an artificially generated perception to natural perception. Mixed Reality includes Augmented and Virtual Reality by combining both.