Eugen Cornelius Joseph Lommel (17.03.1837-19.01.1899) was a German optical physicist. He was born in Edenkoben (now in the FRG). He graduated from the University of Munich (1858), where he worked (from 1868 as professor and in 1899 as rector).
His research was in the field of optics and spectroscopy. He studied the interference, diffraction and dispersion of light, and luminescence.