This disclosure is concerned with a lenticular or barrier strip picture with changeable scenes wherein a trimmed lenticular screen or a barrier strip plate is used to view a composite image. On a conventional lenticular picture, the focal plane of the lenticules on the lenticular screen...http://www.google.fr/patents/US5757545?utm_source=gb-gplus-shareBrevet US5757545 - Lenticular and barrier strip pictures with changeable scenes
Lenticular and barrier strip pictures with changeable scenes