Patent ID: 7554511

Claim:
A device for creating a milieu for a creature in a real environment to the creature, the milieu comprising both at least one part of the real environment and at least one fictitious phenomenon, the properties of said milieu experienced by the creature depending on the position and/or orientation of a bodypart of the creature relative to the real environment, the device comprising: a member for generating stimuli, said stimulation generating member including i) a transducer and ii) a connecting means which connects the creature and the transducer so that the relative positions and/or orientations of the creature and the transducer are known within a limited interval, said stimulation generating member generating the stimuli by means of information about the position and/or orientation of the transducer, and a unit for transferring the generated stimuli to the creature to thereby realize said milieu for the creature, wherein the transducer is arranged to determine the transducer's position and/or orientation relative to the real environment by receiving incident optical signals from signal sources in the real environment and recording the relative incident directions of the received optical signals in relation to the transducer.