An alignment system for a scanning camera and illumination source includes a tape having a plurality of fiducials arranged systematically in opposition about a common center line. The camera is supported on a gimbaled platform for adjusting roll, pitch and yaw to bisect the tape fiducials with the camera...http://www.google.co.uk/patents/US5463429?utm_source=gb-gplus-sharePatent US5463429 - Surface inspection optical geometry alignment system
