A century ago in France it might have been as apt to refer to Georges Claude as a luminary as anyone else. The inventor of neon lights, which debuted at the Paris Motor Show of 1910, the scientist was often thought of as a “French Edison,” a visionary who shined his brilliance on the world. Problem was, there was a dark side: a Royalist who disliked democracy, Claude eagerly collaborated with the Nazis during the Occupation and was arrested once Hitler was defeated. He spent six years in prison, though he was ultimately cleared of the most serious charge of having invented the V-1 flying bomb for the Axis. Two articles below from the Brooklyn Daily Eagle chronicle his rise and fall. 

From February 25, 1931:

From September 20, 1944: