Light & Engineering 32 (6) 2024

Volume 32
Date of publication 12/12/2024
Pages 85–92

Some Studies on Discolouration Effect of Electric Light Sources on Oil Painting and Water Colour Painting in Museum L&E, Vol.32, No.6, 2024

Articles authors:

Kamalika Ghosh, Anubrata Mondal

Kamalika Ghosh, Ph. D. (Eng.), Former Director of School of Illumination Science, Engineering and Design, Jadavpur University, India. She has 20 years industrial and 23 years academic experiences. She has published about 100 nos. of papers in National and international journals and conferences. She has supervised several Ph. D. works, reviewed multiple nos. of external Ph. D. thesis, reviewed papers of international journal. She is a Life Fellow of Institution of Engineers, India; Indian Society of Lighting Engineers

Anubrata Mondal, Ph. D. (Eng.). At present, he is a Head of the Department of Electrical Engineering, Greater Kolkata College of Engineering & Management (JIS Group) and former Research Scholar of School of Illumination Science, Engineering and Design, Jadavpur University, India. He published about 15 papers and reports in national and international journals and conferences proceedings

Abstract:

Preservation of paintings in museum or art galleries, especially of organic materials like paper and textiles, is a great concern. It is crucial to have proper illumination to see an object. Due to urbanization, in most of the place’s daylight is not sufficient. Due to this, usage of electric lighting, with advanced technology, is highly important. The majority of electric lighting release corrosive ultra violet rays (UV). It can be observed that UV ray is also present as a neighbour of visible light. The discoloration effects of UV content, are due to its high energy concentration, leads to day-by-day discolouration of painting. Before using the electric light sources, it is important to check their UV content. For this, a comprehensive analysis and experiment have been carried out. This paper aims to investigate the UV content of various electric light sources and how it affects paintings like water colour and oil paintings. The primary hues red, green, blue, as well as gold and silver, have all been the subject of experiments. To illustrate the nature of the discolouration power of various types of lamps, results have been furnished in the form of tables as well as graphs. In this regard, appropriate light sources can be employed to prevent paintings from discoloration.

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Keywords

DOI: https://doi.org/10.33383/2023-087

Article in RUS:
Svetotekhnika # 5, 2024, pp. 37–43

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