Ultraviolet Fluorescence

Ultraviolet fluorescence imaging gives information about the surface of a painting. The painting is exposed to ultraviolet light, which is absorbed by the materials at the surface. These materials then release some of the absorbed light energy in the form of fluorescent visible light, which is captured by the camera. The color and intensity of the fluorescence allows the viewer to determine the location and depth of overpaint and retouching as well as the type, thickness, and evenness of the varnish coating.

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