A head mounted virtual environment display with high visual resolution and a full field of view is disclosed. The display uses an optical system in which the video displays and corresponding lenses are positioned tangent to hemispheres with centers located at the centers of rotation of a user's eyes....http://www.google.com.au/patents/US6529331?utm_source=gb-gplus-sharePatent US6529331 - Head mounted display with full field of view and high resolution
