Bezold-Abney phenomenon

The articles Bezold-Abney-Phenomenon , Abney-Effect and Bezold-Bridge-Phenomenon overlap thematically. Help me to better differentiate or merge the articles (→  instructions ) . To do this, take part in the relevant redundancy discussion . Please remove this module only after the redundancy has been completely processed and do not forget to include the relevant entry on the redundancy discussion page{{ Done | 1 = ~~~~}}to mark. No Einstein ( discussion ) 18:31, May 31, 2016 (CEST)

Mixing white with monochromatic light changes not only the saturation of the color, but the hue itself. This effect is known as the Bezold-Abney phenomenon . This phenomenon was named after Wilhelm von Bezold and Sir William de Wiveleslie Abney . In some literature the term is also used synonymously for the Bezold Bridge phenomenon . The term Abney effect is also synonymous .

description

With additive color mixing of individual primary spectral colors, the luminance of these individual colors add up to a total luminance. Adding white light changes the saturation of the colors. This change is perceived by the human eye as a change in color. When adding white light, a change takes place - to different degrees for different colors. The brightness is of great importance for color perception and color differentiation in the human eye. With very low luminance, only three individual color tones from a specific radiation range are perceived. The Bezold-Abney phenomenon is most pronounced at both ends of the spectrum e.g. B. from red to orange and blue to purple. This effect is hardly noticeable in the middle area and is less pronounced. Color stimuli between 380 nm and 480 nm are perceived as blue-violet, between 480 nm and 570 nm as green and color stimuli between 570 nm and 760 nm as red.

Reason for origin

This effect cannot be exactly explained to this day and there are various theories for the origin of this phenomenon. Some assume that it has something to do with the different sensitivities of the color receptors in the retina (rods (color perception) and cones (brightness)). Other researchers suggest that it has something to do with a filtering process in our brain.

swell

• AH Diaz. Color Appearance Models (2009)
• N. Welsch, CC Liebmann. Colors: nature, technology, art (2012)

Individual evidence

1. ^ Dorsch - Lexicon of Psychology
2. ^ Jürgen Bollmann, University of Trier
3. ↑ Color casts in the color field and gradient: The Abney Effect ( Memento of the original from May 30, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.