This work provides a dual approach to the study of natural light inside the Sistine Chapel, of a purely quantitative type (measurements of absolute values) and a linked to perception aspects (spectral mea- surements), in the context of the great artificial lighting project implemented in 2014. The impossibility of proceeding with standard illuminance measurement instrumentation led to an alternative approach based on the fundamental relationship between illuminance and luminance on Lam- bertian surfaces; a graphical-experimental method of acquiring the reflection coefficients of Sistine paint- ings was developed to supplement in situ luminance measurements. he quantitative study was the starting point for qualitative reflections on light in order to investigate the opportunities and criticalities of daylighting: criticalities attributable to possible perceptual imbal- ances between different parts of the visual field and opportunities attributable to the genius loci which can be highlighted by the connection with the external light environment and its variability over the course of the day and the seasons. The concept of the naturalness of the lighting environment was investigated as a function of the variability of some quantitative variables (illuminance, luminance) and qualitative variables (emission spec- trum and correlated parameters: CCT correlated colour temperature, CRI colour rendering index) related to light and variables linked to the effect of light on the colours of the frescoes (CIE coordinates, SDCM standard deviation of colour matching). The method can be applied to any confined space and produce useful results for the optimisation of exhibition spaces or, more generally, spaces characterised by the coexistence of requirements for use and conservation with natural and/or artificial light.

Cimino, V., Frascarolo, M., Mucciante, M., Santamaria, U. (2022). Interaction between daylighting and artificial lighting in relation to conservation and perception, according to new illumination system of Sistine Chapel. JOURNAL OF CULTURAL HERITAGE, Journal of Cultural Heritage 58 (2022), 256-265.

Interaction between daylighting and artificial lighting in relation to conservation and perception, according to new illumination system of Sistine Chapel

Marco Frascarolo;Matteo Mucciante;Ulderico Santamaria
2022-01-01

Abstract

This work provides a dual approach to the study of natural light inside the Sistine Chapel, of a purely quantitative type (measurements of absolute values) and a linked to perception aspects (spectral mea- surements), in the context of the great artificial lighting project implemented in 2014. The impossibility of proceeding with standard illuminance measurement instrumentation led to an alternative approach based on the fundamental relationship between illuminance and luminance on Lam- bertian surfaces; a graphical-experimental method of acquiring the reflection coefficients of Sistine paint- ings was developed to supplement in situ luminance measurements. he quantitative study was the starting point for qualitative reflections on light in order to investigate the opportunities and criticalities of daylighting: criticalities attributable to possible perceptual imbal- ances between different parts of the visual field and opportunities attributable to the genius loci which can be highlighted by the connection with the external light environment and its variability over the course of the day and the seasons. The concept of the naturalness of the lighting environment was investigated as a function of the variability of some quantitative variables (illuminance, luminance) and qualitative variables (emission spec- trum and correlated parameters: CCT correlated colour temperature, CRI colour rendering index) related to light and variables linked to the effect of light on the colours of the frescoes (CIE coordinates, SDCM standard deviation of colour matching). The method can be applied to any confined space and produce useful results for the optimisation of exhibition spaces or, more generally, spaces characterised by the coexistence of requirements for use and conservation with natural and/or artificial light.
2022
Cimino, V., Frascarolo, M., Mucciante, M., Santamaria, U. (2022). Interaction between daylighting and artificial lighting in relation to conservation and perception, according to new illumination system of Sistine Chapel. JOURNAL OF CULTURAL HERITAGE, Journal of Cultural Heritage 58 (2022), 256-265.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/498496
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 1
social impact