Luminism, late 19th-century painting style emphasizing a unique clarity of light.
It was characteristic of the works of a group of independent American painters who were directly influenced by the Hudson River school of painting.
The term, however, was not coined until 1954 by John Baur, director of the Whitney Museum of American Art in New York City.
The most important painters in the luminist style were John Frederick Kensett, Fitz Hugh Lane, and Martin Johnson Heade; the group also included George Tirrell, Henry Walton, and J.W. Hill.