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.
Antoine Alphonse Chassepot Antoine Alphonse Chassepot (1833–1905) was a French inventor and gunsmith. He was born in 1833 at Mutzig in Alsace.