Document Detail

Color rendering properties of interior lighting influenced by a switchable window.
MedLine Citation:
PMID:  15770978     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Switchable windows are being installed into modern buildings. We report on how the variable transmittance of gasochromic and electrochromic switchable windows changes the color rendering properties of the daylight passing through these windows. We present a series of color rendering examples. Correlated color temperature and color rendering indices are insufficient to describe the color properties of this filtered light, as these indices are beyond the applicability limits. We obtain more reliable results using the color shifts (deltaE) of different objects. We find that as the transmittance of the window changes, each surface color moves along a path of the CIELAB space in the same direction for both switchable units. The direction and distance moved differs among test-color samples. The appearance of an array of colored objects is strongly distorted at higher coloration states of the windows.
Marta Klanjsek Gunde; Ursa Opara Krasovec; Werner J Platzer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  22     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-03-17     Completed Date:  2005-05-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9800943     Medline TA:  J Opt Soc Am A Opt Image Sci Vis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  416-23     Citation Subset:  -    
National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.
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