RT Journal Article
T1 Point to point multispectral light projection applied to cultural heritage
A1 Vázquez Molini, Daniel
A1 Álvarez Fernández-Balbuena, Antonio
A1 Canabal Boutureira, Héctor Alfonso
A1 García Botella, Ángel
A1 Mayorga Pinilla, Santiago
A1 Muro, Carmen
A1 Galán Cañestro, María Teresa
AB Use of new of light sources based on LED technology should allow the develop of systems that combine conservation and exhibition requirements and allow to make these art goods available to the next generations according to sustainability principles. The goal of this work is to develop light systems and sources with an optimized spectral distribution for each specific point of the art piece. This optimization process implies to maximize the color fidelity reproduction and the same time to minimize the photochemical damage. Perceived color under these sources will be similar (metameric) to technical requirements given by the restoration team uncharged of the conservation and exhibition of the goods of art. Depending of the fragility of the exposed art objects (i.e. spectral responsivity of the material) the irradiance must be kept under a critical level. Therefore, it is necessary to develop a mathematical model that simulates with enough accuracy both the visual effect of the illumination and the photochemical impact of the radiation. Spectral reflectance of a reference painting The mathematical model is based on a merit function that optimized the individual intensity of the LED-light sources taking into account the damage function of the material and color space coordinates. Moreover the algorithm used weights for damage and color fidelity in order to adapt the model to a specific museal application. In this work we show a sample of this technology applied to a picture of Sorolla (1863-1923) an important Spanish painter title “woman walking at the beach”.
PB The Society of Photo-Optical Instrumentation Engineers (SPIE)
SN 0277-786X
YR 2017
FD 2017
LK https://hdl.handle.net/20.500.14352/18318
UL https://hdl.handle.net/20.500.14352/18318
LA eng
NO Vázquez Moliní, D., Álvarez Fernández, A., Canabal Boutureira, H. A. et al.  «Point to point multispectral light projection applied to cultural heritage». Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV, vol. 10379, SPIE, 2017, pp. 85-95. www.spiedigitallibrary.org, https://doi.org/10.1117/12.2281482.
NO Vol. 10379: Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV 2017; San Diego; United States; 6 August 2017 through 7 August 2017; Code 132384ISBN: 978-1-51061215-0
DS Docta Complutense
RD 8 abr 2025