Ocean Optics OOIIrrad-C - Manual (Page 48)

4: Configuration
► Procedure
1. Select
Reflective or Emissive from the Measurement Type drop-down list:
• Reflective – Color measurement of a surface for a selectable CIE-defined illuminant.
• Emissive - Measurement of the light emitted from an LED or a lamp (emission source).
2. Specify whether to use the 2° (CIE 1931) or the 10° (CIE 1964) observer (viewing angle) using
the Observer drop-down list.
3. If you chose Reflective measurement in Step 1, select the desired Iluminant from the drop-down
list. This illuminant is theoretical and CIE-defined; it has nothing to do with the actual lamp used
in the measurement.
4. If you chose Reflective measurement in Step 1, select White Reference Tile.
5. Activate color analysis by enabling one of the following check boxes:
• X, Y, Z
• x, y, z
• u’, v’, w’, Hue, Sat
• R, G, B
• L*, a*, b*, Hue, Chroma
• Hunter L, a, b
• CCT
• Dom. Wavelength, Purity and x-y chromaticity diagram – The x-y diagram points to
the illuminant and the color of a measured surface. If emissive color is measured, the x-y
diagram points to the source with a line connecting to the equilibrium point (E,
x = 0.333333 and y = 0.333333) or a refernce illuminant. The intersection of this line
with the curve gives the dominant wavelength.
6. Click OK.
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