In what year was the inventor of the Abbe prism born?
Abbe prism In optics, an Abbe prism, named for its inventor, the German physicist Ernst Abbe, is a type of "constant deviation dispersive prism" similar to a Pellin–Broca prism.
Paul Jacques Malouin Paul Jacques Malouin (27 June 1701 Caen – 3 January 1778 Versailles) was a French chemist and physicist.