Patent ID: 6870520

Claim:
A display system for displaying imagery to a user comprising: a display unit comprising headgear, an optical correlator and a visual display, the headgear being sized and shaped to be placed upon the head of a user, the optical correlator comprising an imager operative to capture image data corresponding to a surface, the optical correlator being mounted to the headgear and being operative to monitor a surface optically and to generate an image output signal corresponding to the surface, the visual display being mounted to the headgear such that the visual display can be viewed by the user when the headgear is placed upon the head of the user, the visual display being operative to display imagery based upon the image output signal from said optical correlator; and an enclosure sized and shaped to at least partially surround said display unit; wherein the surface to be monitored by the optical correlator is an interior surface of said enclosure.