Document number: TS RHDM-1701 - K5960056
Issue: 00
Release date: 3 aug 2010
Technical specifications
Page 23 of 52
www.barco.com
8.1.2.4.3
Spatial uniformity
Definitions
2
2
)
'
(
)
'
(
'
'
v
u
v
u
∆
+
∆
=
∆
Spatial uniformity - measuring points
The spatial luminance uniformity is measured at the points as defined in the
EBU Tech 3325.
Coordinates
(Relative to screen centre)
Measuring point
W H
1 (screen centre)
2 and 5
9 and 12
3, 4, 6 and 7
8, 10, 11 and 13
0
0
± 0.4H
± 0.35H
± 0.4W
0
± 0.4H
0
± 0.2H
± 0.4H
The area of measurement is not greater than a circle of diameter 0.1H.
Luminance uniformity on white
White point chromaticity and luminance is calibrated at the center of the
display for x=0.3127, y=0.3290 and Y=100 cd/m
2
(at level 1019).
The least bright point has a luminance which is equal to or larger than 88% of
the luminance measured in the center of the screen.
Color uniformity on white
White point chromaticity and luminance is calibrated at the center of the
display for x=0.3127, y=0.3290 and Y=100 cd/m
2
(at level 1019).
For all points the following tolerance requirement applies:
Maximal:
003
.
0
'
'
≤
∆
v
u
Typical:
0015
.
0
'
'
≤
∆
v
u
The tolerances apply for a temperature of 25°C.
Summary of Contents for RHDM-1701
Page 2: ......