Open AccessObject color naturalness and attractiveness with spectrally optimized illumination
Author(s) -
Dorukalp Durmus,
Wendy Davis
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.012839
Subject(s) - optics , light emitting diode , photometry (optics) , absorption (acoustics) , narrowband , color rendering index , led lamp , naturalness , illuminance , energy (signal processing) , object (grammar) , spectroradiometer , materials science , optoelectronics , reflectivity , physics , computer science , artificial intelligence , computer vision , stars , quantum mechanics
Previous analyses have shown that optimizing illuminants' spectral power distributions for object reflectance can yield energy savings in excess of 40% by reducing the light lost to absorption. Here, commercially available LEDs and real objects, instead of theoretical spectra and test sample colors, are investigated. Simulations show that energy savings of up to 15% are possible when illuminating common objects with mixtures of narrowband LEDs, compared to illumination by reference phosphor-coated white LEDs, without inducing changes in color appearance. Experiments show that higher energy savings are achievable without degrading object appearance. Object optical properties impact the success of this approach.