A three-dimensional display device having a generally hemispherical configuration with a displayed image or reflecting surface on either or both of its inner concave surface and its outer convex surface. The device includes at least three portions which are curved and angled to create the hemispherical...http://www.google.ca/patents/US5083389?utm_source=gb-gplus-sharePatent US5083389 - Panoramic display device and method of making the same
