Lippmann, Gabriel (1845–1921)
Gabriel Lippmann was a French physicist awarded the 1908 Nobel Prize in Physics for inventing (c.1891)
the first system of color photography.
Lippmann was the first person to produce a color photograph of the visible
spectrum. He also invented the direct color process of photography. The
process used a plate consisting of a grainless emulsion in contact with
a layer of liquid mercury. It required long exposures and is thus now obsolete;
however, it was important in the development of holograms. Lippmann also
invented the coelostat, and predicted piezoelectricity.