Hofmann, Manfred; Hofmann, Rita (2022). Spectral Light Fading of Inkjet Prints Heritage, 5(4), pp. 4061-4073. MDPI 10.3390/heritage5040209
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Background: The use of light-emitting diode (LED) lighting is increasingly replacing traditional light sources in museums. There is a need to anticipate the damage caused by LED lighting to photographic prints. The aim of this study is to quantitatively predict fading on three inkjet color patches exposed to different white light LED; (2) Method: The novel approach of this work is to measure the wavelength-dependent photochemical efficiency on color patches using a narrow band LED. First, the color patches are exposed to narrow band LED lamps in a proprietary light chamber. Sensitivity curves are obtained by plotting the density changes caused by narrow band exposure as a function of the exposure. In the second step, action spectra are derived from the slopes of the sensitivity curves. The action spectra correspond to the rates of change of a color patch to exposure with different wavelengths of light. In the third step, the narrow band light emissions are fitted to the emission spectra of the white LED of interest. The fitting factors are used to calculate the weighted sum of the density changes; (3) The method predicts the absolute density change of color patches for several white light LED exposures.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
Bern Academy of the Arts Bern Academy of the Arts > Institute Materiality in Art and Culture Bern Academy of the Arts > Institute Materiality in Art and Culture > Technology in Art and Culture |
Name: |
Hofmann, Manfred and Hofmann, Rita  0000-0003-2471-5791 |
ISSN: |
2571-9408 |
Publisher: |
MDPI |
Projects: |
[UNSPECIFIED] Untereloxaldruck |
Language: |
English |
Submitter: |
Daniela Wüthrich |
Date Deposited: |
14 Dec 2022 14:08 |
Last Modified: |
14 Dec 2022 14:08 |
Publisher DOI: |
10.3390/heritage5040209 |
Uncontrolled Keywords: |
light stability of photographic prints; wavelength dependent light fading; action spectrum of inkjet prints |
ARBOR DOI: |
10.24451/arbor.18405 |
URI: |
https://arbor.bfh.ch/id/eprint/18405 |
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