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Klein Gauge
1 May, 2000 By: Art Liddle,Ron LaFonTop Ten Monitors on Display
A
Klein gauge is a sensitive and expensive ($1,000) instrument for measuring
misalignment of the three primary colors (red, green, and blue) that create
images on a monitor's CRT. In particular, it measures how far the red
and green "dots" are misaligned from the blue "dots" in a thin white line.
Ideally, all three colors should line up on the face of the CRT to produce
a pristine white line. The Klein Gauge chart attempts to graphically indicate
the measured misalignment of our test monitors. We checked the alignment
of red and green for vertical and horizontal lines at five places on the
screen: top left, bottom left, center, bottom right, and top right. This
gave us the 20 measurements for each monitor shown in the chart. We also
converted the results to a single test score shown in the features
table where 5.0 is a perfect score—no measured misalignment greater
than 0.05mm. — A.L.
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