This name of a character played by Kirsten Dunst in the movie Virgin Suicides, originally a novel by Jeffrey Eugenides, is gaining attention, also thanks to the heroine Lux, Lady of Luminosity in the League of Legends games. Luz is the Spanish version.
Lux Cassidy, main character in the U.S. show "Life Unexpected"
Lux Lisbon, main character in "The Virgin Suicides"
"The Luxe," teen novels set in 19th century Manhattan
"400 Lux" by Lorde, song
Lux, a character in the book "Vitro"
"Lux" The name of a book series by Jennifer L. Armentrout, named for the planet some of the main characters originate from.