Visual comfort probability

Visual comfort probability (VCP), also known as Guth Visual Comfort Probability, is a metric used to rate lighting scenes.

VCP is defined as the percentage of people that will find a certain scene (viewpoint and direction) comfortable with regard to visual glare. [1][2] It was defined by Sylvester K. Guth in 1963. [3][4]

References

Visual Comfort and Productivity, tristate.apogee.net; retrieved February 16, 2014 via Wayback Machine
Ward, G.J. (1991). "RADIANCE Visual Comfort Calculation". Rapport interne, LESO, EPFL.
Guth, SK (1963). "A method for the evaluation of discomfort glare". Illuminating Engineering. 58 (5): 351–364.
Guth, Sylvester K. (October 1966). "Computing Visual Comfort Ratings For a Specific Interior Lighting Installation" (PDF). Illuminating Engineering: 634–642.

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[1] Visual Comfort and Productivity, tristate.apogee.net; retrieved February 16, 2014 via Wayback Machine

[2] Ward, G.J. (1991). "RADIANCE Visual Comfort Calculation". Rapport interne, LESO, EPFL.

[3] Guth, SK (1963). "A method for the evaluation of discomfort glare". Illuminating Engineering. 58 (5): 351–364.

[4] Guth, Sylvester K. (October 1966). "Computing Visual Comfort Ratings For a Specific Interior Lighting Installation" (PDF). Illuminating Engineering: 634–642.