D65 {colorSpec}

Standard Illuminant D65 (1964)

Description

D65.1nm	standard Illuminant D65, 300 to 830 nm at 1 nm intervals
D65.5nm	standard Illuminant D65, 380 to 780 nm at 5 nm intervals

Format

Each is a colorSpec object organized as a vector, with specnames equal to 'D65'.

Details

Both of these have been divided by 100, to make the values at 560nm equal to 1 instead of 100.

Source

http://www.cvrl.org

References

Günther Wyszecki and W.S. Stiles. Color Science : Concepts and Methods, Quantitative Data and Formulae. Second Edition. Wiley-Interscience. 1982. Table I(3.3.4) pp. 754-758

ASTM E 308-01. Standard Practice for Computing the Colors of Objects by Using the CIE System. Table 3. pages 3-4.

See Also

ABC, D50, daylightSpectra , daylight

Examples

summary( D65.1nm )
white.point = product( D65.1nm, xyz1931.1nm, wave='auto' )