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.
Louis Antoine Louis Antoine (23 November 1888 – 8 February 1971) was a French mathematician who discovered Antoine's necklace, which J. W. Alexander used to construct Antoine's horned sphere.