PR-655/670 User Manual
63
2.
Touch the desired values, then touch
Back
when finished.
3.
Repeat for both chromaticity (x, y) values for each primary. If the values are not known, they may first
be measured by turning on only one primary at a time (3 measurements total) and noting the resultant
CIE x, y values for entry into these fields.
S
ETTING THE
W
HITE
P
OINT
The White Point (White Pt.) is the background or ambient illumination under which the display is viewed and has
an effect on the perceived color of the display. Several pre-stored CIE recommended illuminants and daylight
simulators can be selected. They include CIE Illuminants D65, A, B, C, D-50 and D-55.
Alternately, ambient sources (room lighting for example) may be measured and used as the White Pt. values.
1.
Touch
Select
next to the
yw
window. The following screen appears:
Содержание PHOTO RESEARCH SpectraScan PR-655
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Страница 25: ...PR 655 670 User Manual 9 FIGURE 10 SAMPLE EXTERNAL TRIGGER INPUT CIRCUIT DRIVERS...
Страница 106: ...PR 655 670 User Manual 90 FIGURE 87 USB POWER SCREEN Total power available Total power required...
Страница 159: ...PR 655 670 User Manual 143 PR 655 PR 670 OUTLINE DRAWINGS...
Страница 160: ...PR 655 670 User Manual 144...