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Proceedings Paper

Fluorscence thresholds for some reddish colors
Author(s): Osvaldo da Pos; Michela Sponga
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Paper Abstract

The extra-brightness which characterizes fluorescent colors was adjusted to determine the luminance threshold dividing surface and fluorent colors for 7 zero-blackness reddish nuances (NCS notation) following three different psychophysical methods. Results are consistent with Evans' findings that threshold is always lower than surface-white luminance and decreases with chromaticness. When the same colors are observed over an achromatic Mondrian in a black viewing box fluorescence impression not only increases with the sample chromaticness, but also with the general illumination and the anchoring level of the Mondrian.

Paper Details

Date Published: 6 June 2002
PDF: 4 pages
Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); doi: 10.1117/12.464723
Show Author Affiliations
Osvaldo da Pos, Univ. of Padua (Italy)
Michela Sponga, Univ. of Padua (Italy)


Published in SPIE Proceedings Vol. 4421:
9th Congress of the International Colour Association

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