Judd-Vos modified CIE 2-deg chromaticity coordinates (1978)

Data key

Columns

1. Wavelength (nm)
2. x(λ) chromaticity coordinate
3. y(λ) chromaticity coordinate
4. z(λ) chromaticity coordinate

Notes

The Judd-modified chromaticity coordinates are related to the Judd-Vos-modified XYZ CMFs (Vos, 1978) by

 

 

 

where , , and  are the chromaticity coordinates, and ,  and  are the CMFs.

 

For more details refer to the Judd-Vos-modified 2 deg XYZ CMFs page.

References

Judd, D. B. (1951). Report of U.S. Secretariat Committee on Colorimetry and Artificial Daylight. In Proceedings of the Twelfth Session of the CIE, Stockholm (vol. 1, pp. 11). Paris: Bureau Central de la CIE.

Vos, J. J. (1978). Colorimetric and photometric properties of a 2-deg fundamental observer. Color Research and Application, 3, 125-128.