Luxo Jr. is a semi-anthropomorphic toy desk lamp character used as the primary mascot of Pixar Animation Studios.

Lasseter did not plan on creating a story for the lamp, but the Belgian animator Raoul Servais urged him to write a plot.

"[1] The inspiration for the Luxo Jr. character came from Lasseter's interactions with Spencer, the young son of Tom Porter, who is a Pixar team member.

"[3] He changed the proportions of the lamp model to make it more infant-like, giving a large head and a small body.

[1] Lasseter said that "The animation of a lamp whose head is a light-source, moving around and self-shadowing the world around him, was a perfect matching of technology and subject matter.

[5] Luxo Jr. can also be seen in four educational short films, which were created by Pixar especially for Sesame Street in 1991: Light & Heavy, Surprise, Up and Down and Front and Back.

A 6-foot-high (1.8 m) animatronic figure modeled after Luxo Jr. stood near the Toy Story Midway Mania attraction at the Disney's Hollywood Studios theme park.

In 2010 Disney removed the animatronic without offering an official explanation, but the Luxo ASA lawsuit may have been a factor.