School of Physics Lecture Demonstration Manual

Ei-7 Artwork Fraud and Physics

Published: Tuesday 05 June 2007 - Updated: Tuesday 29 March 2011

Aim

To demonstrate different spectral reflectance and transmittance properties and how they may be used to investigate art fraud.

Apparatus

Diagrams

Click on pictures to enlarge.

Art Fraud pic 1

Art Fraud Pic 2

Art Forge Pic 3

Description

A canvas has been prepared with hidden underlying artwork. In ordinary visible light the canvas displays no detail apart from a continuous orange background. When illuminated from behind with an infrared source The hidden writing beneath is clearly visible when viewed with the camera on night vision mode.

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