Am 30.11.2016 um 05:37 schrieb clipka:
> Am 30.11.2016 um 05:09 schrieb clipka:
>> Am 30.11.2016 um 04:56 schrieb clipka:
>>> Gamut of all theoretically possible surface colours, under D65 (noon
>>> daylight) illumination, in CIE 1931 xyY space.
>>
>> Ditto, but under standard illuminant A (incandescent light bulb)
>> illumination.
> 
> And now standard illuminant F4 (warm white fluorescent), which has
> almost identical xy whitepoint coordinates as illuminant A, yet exhibits
> a notably different gamut due to the different spectral composition
> (note e.g. the obvious "flatness" of the shape near the bluish-green
> horseshoe border).

And here's F12 (Philips TL83, Ultralume 30): Again similar xy whitepoint
coordinates as A and F4, yet probably the most extremely shaped gamut of
all CIE standard illuminants, due to a very pronounced emission line
spectrum.

Post a reply to this message

Attachments:
Download 'ciexyy_f12.avi.dat' (1200 KB)