The invention relates to a panoramic attachment optical system and a panoramic optical system for taking an image having a full 360°-direction angle of view or projecting an image at a full 360°-direction angle of view. These optical systems are reduced in size and flare light and improved in resolving...http://www.google.ca/patents/US7245443?utm_source=gb-gplus-sharePatent US7245443 - Panoramic attachment optical system, and panoramic optical system
