In 1921, French designer Bernard Albin Gras designed a sturdy and simple lamp for studios and offices. This series of lighting fixtures, called "Gras Lamp" after him, has a unique structure that does not use any screws or welds in the basic structure, and the design and details of the arm, handle, bracket, and base are particularly outstanding. It was completely original and innovative for its time. In 1927, the patent was purchased by RAVEL and production began as the "GRAS" lamp. Architect Le Corbusier was immediately fascinated by its modern and innovative design and adopted this lamp in his atelier. The "Gras Lamp" was the first design in the history of lighting to be incorporated into both professional and residential environments.