Raking light examination

Raking light examination assists study of the painting techniques and damages.

Raking light is widely used in the examination of works of art. The art object is illuminated from a light source at oblique angle, almost parallel to the surface of the art object. This method allows us to gain information about the surface topography. Raking light shows for example brush strokes, damages, raised paint and planar deformations. All the features in the painting become more defined due to the shadows they create across the surface of the painting.