Ei-7 Artwork Fraud and Physics

Aim

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

Apparatus

  • Specially prepared canvas
  • IR source
  • DV camera with night vision mode.

Art Fraud 1 Art Fraud 2 Art Fraud 3

Art Fraud Images

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.