Near IR diodes as illumination sources to remotely detect under-drawings on century-old paintings

Marija Strojnik; Gonzalo Paez; Antonio Ortega

doi:10.1117/12.902160

25 October 2011 Near IR diodes as illumination sources to remotely detect under-drawings on century-old paintings

Marija Strojnik, Gonzalo Paez, Antonio Ortega

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 801177 (2011) https://doi.org/10.1117/12.902160
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

Mexico possesses a large cultural heritage of paintings, elaborated after the European explorers encountered the New World. The interest in documenting these treasures was recently renewed, with the development of nondestructive remote techniques. We examined an undocumented painting for the presence of any invisible signatures, dates, or under-drawings. We employed several illumination-detection schemes, including IR broadband and LED arrays to achieve this purpose. We made visible the signature at about 1 μm and the date at 1.2 μm.

Citation Download Citation

Marija Strojnik, Gonzalo Paez, and Antonio Ortega "Near IR diodes as illumination sources to remotely detect under-drawings on century-old paintings", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801177 (25 October 2011); https://doi.org/10.1117/12.902160

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