Christie DS+5K User Manual page 87

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SET LAMP POWER—
possible for your application while still maintaining a good overall match of
light output from screen-to-screen. By nature, achieving a uniform brightness
will require a slightly reduced overall brightness—this reduction will help
ensure that you have enough range of adjustment when examining brightness
variables more closely from screen-to-screen, and will help prevent premature
"maxing out" when trying to match to a certain color, zone or projector.
USE A "USER" COLOR TEMPERATURE—
for a User color temperature defined when you matched primary colors, and
continue to use it for all sources displayed on the wall. Your other color
temperatures will not necessarily be matched from screen-to-screen.
WHITE UNIFORMITY SLIDE BARS—
reduce to "0". Each slide bar adjusts overall light output in a specific screen
zone, but the value shown represents the current setting for green in this zone.
When other "hidden" values (red or blue) are lower than green, during
adjustment in the White Uniformity menu their values will reach "0" first,
causing the slide bar to stop earlier than expected.
JUDGE BY EYE OR USE A METER—
achieved with either.
Step 1: General Setup
Adjust primary colors (see Matching Colors in Multiple Screens) to ensure
1a)
matched overall color temperatures and light output between screens.
Double-check that all WHITES and LIGHT OUTPUT are well-matched.
Enable the
1b)
Brightness
Uniformity
checkbox. This will
enable access to the
uniformity controls
and will apply the
settings to your
image.
Select the 13-Point test pattern for display.
1c)
This pattern provides 9 screen "zones" with
13 targets.
FOR BEST RESULTS: Rather than
examining the CENTER of each zone when
assessing Brightness Uniformity adjustments
focus on extreme EDGES as indicated in the
illustration at right.
In either Color Adjustments menu, select a "User" color. Then:
1d)
Make sure each "Lamp Power" setting is as high as
Always adjust Brightness Uniformity
White Uniformity slide bar values may not
Good brightness uniformity can be
IMPORTANT
Section 3: Operation
User's Manual 3-61
.