19
CHROMATITY COORDINATES DIAGRAM
(x, y CIE-1931)
Shown on the diagram are the THELIGHT lamp head chromaticity coordinates (x, y CIE-1931) feed and digitally controlled
by its Control Unit and they are compared with the reference illuminants. These reference illuminants are the Planckian
locus radiator set below 5000K and the CIE daylight reference is set over 5000K. The Planckian locus radiator
references the chromaticity for several tungsten lamps colour temperatures while the daylight locus typify daylight type D
illuminants.
The diagram evidence the light emanated by THELIGHT luminary at every colour temperature entirely matches with the
described locus reference so that the colour of the light produced is essentially the same as incandescent and daylight. It
is also remarkable the minimum green/magenta deviation over the locus reference along the range of colour
temperatures (means minimal difference between THELIGHT chromaticity coordinates and the ideal reference line).
CALIBRATION
The Instrument Systems scanning spectrometer, model Spectro 320, serial number 30932004, with its accessory
TOP-100 has been calibrated according to the United States National Institute of Standards (NIST) and the German
Physikalisch-Technische Bundesanstalt (PTB) standard references.
ACCURACY
The Instrument Systems scanning spectrometer, model Spectro 320, serial number 30932004, with its accessory
TOP-100 has an imprecision over the spectral radiometric results delivered lower than 1%.
Specifications subject to change without notice. THELIGHT technology is protected under Spanish license laws with international patents pending.
THELIGHT luminary for cine and tv, S.L. www.thelight.com.es