Danish architect, designer, author Poul Henningsen (1894-1967) is most remembered for his lighting designs. Henningsen developed a line of lighting known as the “PH” series that was not harsh and glaring but emitted warm and soft hues. In 1925, one of these fixtures won first prize for modern lighting at the Paris Exposition of Decorative Arts. The next year it was put into production by Louis Poulsen & Co. in Copenhagen, and it has been in continuous international demand along with his other designs ever since. By the time he died in 1967, Poul Henningsen had designed more than one hundred lamps for the "PH" range, all of them based on the original idea of multiple shades and diffusors to provide warm, diffuse light.