LEDµSF: Portable spectrofluorimeter using LED sources for non-invasive analysis of cultural heritage artworks

Applications

• UV fluorescence analyzes for different types of organic materials: (natural binders, wax, resin, varnish, polymer materials).
• Items that can be analyzed using this method are: mural, easel painting, polychrome on wood or stone, dyestuff material, binders,  etc.
• Scientific analysis of the materials in a piece of artwork answers various issues:
  • Characterization of pictorial techniques,
  • restoration assistance,
  • diagnosis of the state of conservation,
  • authentication by research of potential falsification.

Description

• Miniaturized, portable and lightweight microspectrofluorimeter device (200-1000 nm),
• Use of LED sources to collect bands of fluorescence emission of materials stimulated by UV radiation,
• A database of reference spectra of pigments and binders will be available.

Benetits

• Lightweight and contactless system,
• Ease and speed of use for data acquisition,
• Modular system : Selected LED (285, 375 nm) according to materials analysed,
• Non-invasive and non-destructive system,
• Power adjusted by filters,
• Remote triggering system and possibility to set integration time.

Maturation

The maturation with Aquitaine Science Transfert leds to the realization of a functional prototype