Intensified light emitting diodes intermittently energized while in motion, the light emission thereof being sensed by eyesight retention as dots and bars of light dynamically related and intermixed relative one to the other in an infinite number of geometric patterns dependent upon the simple and compound...http://www.google.de/patents/US4383244?utm_source=gb-gplus-sharePatent US4383244 - Pseudo multi light display device and generator therefor
