Luxo Jr. is a 1986 American computer-animated short film produced and released by Pixar.Written and directed by John Lasseter, the two-minute short film revolves around one larger and one smaller desk lamp. The larger lamp, named Luxo Sr., looks on while the smaller, younger Luxo Jr. plays exuberantly with a ball to the extent that it accidentally deflates. Luxo Jr. was Pixar's first animation after Ed Catmull and John Lasseter left Industrial Light & Magic's computer division of Cinetron Computer Systems. The film is the source of Luxo Jr., the mascot of Pixar.