What is an Optical color definition?

Question: What is an Optical color definition!?

WITH an example of a painting that represent this definitionWww@QuestionHome@Com

Best Answer - Chosen by Asker:

A definition would be a painting where there is an optical color mixture, that is - where different dots and dabs of color blend in the mind's eye to create new color sensations more vibrant than the actual pigment used!.
Example; Georges Seurat, A Sunday Afternoon on the Island of La Grande Jatte, oil on canvas, 1884-86
Art Institute, Chicago!.
http://www!.artchive!.com/artchive/S/seura!.!.!.Www@QuestionHome@Com