Chaise longue à réglage continu, also Chaise longue modèle B 306 à réglage continu or Chaise longue B 306 (later Chaise Longue - LC4, in 1964), is a chaise longue designed by Le Corbusier, Pierre Jeanneret, and the French designer Charlotte Perriand, who worked in the atelier of the Swiss-French architect Le Corbusier and his partner Pierre Jeanneret.[1]