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