soon selling magic lanterns, demonstrated one in his shop on 17 May 1663 to Balthasar de Monconys, and sold one to Samuel Pepys in August 1666.

One of Christiaan Huygens's contacts imagined how Athanasius Kircher would use the magic lantern: "If he would know about the invention of the Lantern he would surely frighten the cardinals with specters." Kircher eventually learnt about the existence of the magic lantern