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.
Hippolyte Marié-Davy Edme Hippolyte Marié-Davy (28 April 1820 – 26 July 1893) was a French chemist and inventor of the 19th century. He was born in Clamecy, Nièvre.