NEW METHODOLOGY OF LIGHT SOURCE SPECTRAL DISTRIBUTION SELECTION AND DESIGN FOR USE IN MUSEUMS TO PROPERLY EXHIBIT AND PRESERVE ARTWORK

ARANA SEMA, F; SANDOVAL, J; AJMAT, R.; PUJOL RAMO, J

LIGHT & ENGINEERING

ZNACK PUBLISHING HOUSE

Lugar: Moscu; Año: 2015 vol. 23 p. 18 - 23

0236-2945

A new methodology to select light source spectral distribution for use in museums is presented. It is based upon obtaining the Representative Spectral Reflectance Curve (RSRC) for each artwork and then lighting it with a light source which spectral power distribution is coincident in shape with the object´s R.S.R.C. This should cause minimum damage due to radiation on the object, given that object deterioration due to radiation is an effect of absorbed energy. In order to evaluate presentation quality, colour differences were calculated for the three primal colours present in an artwork sample, illuminated under Illuminants D65 and under a simulated illuminant which spectral power distribution matches the R.S.R.C. of the illuminated object. Results are in general lower than 3 CIELAB units, considered the limit for strict tolerance in normal colour reproduction.