## Color Rendition Engine

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To add a spectral power distribution, create a text file with the following format and select "Add…" in the drop down menu.

460 0.0 620 1.0 780 0.0

User defined spectra are not stored on the server and will be lost after reloading the page.

Correlated color temperature.

Coordinate x of the CIE 1931 chromaticity.

Coordinate y of the CIE 1931 chromaticity.

Distance from the reference CIE xy chromaticity measured in MacAdam ellipse steps.

General color rendering index.

Commission Internationale de l’Éclairage, [Method of Measuring and Specifying Color Rendering Properties of Light Sources, CIE 1995:13.3], CIE, Vienna (1995).

General color quality scale (Q_{a}).

W. Davis and Y. Ohno, "Color quality scale," Opt. Eng. 49(3), 033602 (2010).

Color fidelity scale (Q_{f}).

W. Davis and Y. Ohno, "Color quality scale," Opt. Eng. 49(3), 033602 (2010).

Color preference scale (Q_{p}).

W. Davis and Y. Ohno, "Color quality scale," Opt. Eng. 49(3), 033602 (2010).

Gamut area scale (Q_{g}).

W. Davis and Y. Ohno, "Color quality scale," Opt. Eng. 49(3), 033602 (2010).

Gamut area index.

M. S. Rea and J. P. Freyssinier-Nova, "Color rendering: A tale of two metrics," Color Res. Appl. 33(3), 192-202 (2008).

Statistical color fidelity index.

A. Žukauskas, R. Vaicekauskas, F. Ivanauskas, P. H. Vaitkevičius, P. Vitta, and M. S. Shur, "Statistical approach to color quality of solid-state lamps", IEEE J. Sel. Top. Quantum Electron. 15(6), pp. 1753-1762 (2009).

Statistical color saturation index.

A. Žukauskas, R. Vaicekauskas, F. Ivanauskas, P. H. Vaitkevičius, P. Vitta, and M. S. Shur, "Statistical approach to color quality of solid-state lamps", IEEE J. Sel. Top. Quantum Electron. 15(6), pp. 1753-1762 (2009).

A. Žukauskas, R. Vaicekauskas, and M. Shur, "Solid-state lamps with optimized color saturation ability", Opt. Express 18, pp. 2287-2295 (2010).

Statistical hue distortion index.

A. Žukauskas, R. Vaicekauskas, F. Ivanauskas, P. H. Vaitkevičius, P. Vitta, and M. S. Shur, "Statistical approach to color quality of solid-state lamps", IEEE J. Sel. Top. Quantum Electron. 15(6), pp. 1753-1762 (2009).

A. Žukauskas, R. Vaicekauskas, and M. S. Shur, "Colour-rendition properties of solid-state lamps," J. Phys. D: Appl. Phys. 43(35), Art. No 354006 (2010).

Statistical color dulling index.

A. Žukauskas, R. Vaicekauskas, and M. S. Shur, "Colour-rendition properties of solid-state lamps," J. Phys. D: Appl. Phys. 43(35), Art. No 354006 (2010).

A. Žukauskas, R. Vaicekauskas, and M. Shur, "Color-dulling solid-state sources of light", Opt. Express 20(9), pp. 9755-9762 (2012).

Statistical luminance distortion index.

A. Žukauskas, R. Vaicekauskas, and M. S. Shur, "Colour-rendition properties of solid-state lamps," J. Phys. D: Appl. Phys. 43(35), Art. No 354006 (2010).

Luminous efficacy of radiation.