Adjusting the image
Mirage M Series User Manual
101
020-101942-02 Rev. 1 (10-2018)
In the Brightness Uniformity menu, select the
Brightness Uniformity Enable
checkbox to access
a multitude of adjustments for light output control in specific areas throughout the image. Your
settings apply as long as the
Brightness Uniformity Enable
checkbox is enabled. While making
adjustments, enable the
Coarse Adjustment
checkbox to apply Brightness Uniformity settings
with a large granularity. Coarse Adjustment helps identify brightness changes and accelerates
projector response time while adjusting settings. To disable the Brightness Uniformity function,
deselect the
Brightness Uniformity Enable
check mark.
1. Adjust primary colors see
to ensure matched overall
color temperatures and light output between screens.
Double-check that all WHITES and LIGHT OUTPUT are
well-matched.
2. Enable the
Brightness Uniformity
checkbox. This
enables access to the uniformity controls and applies the
settings to your image.
3. Select the 13-Point test pattern for display. This pattern
provides nine screen zones with 13 targets as shown.
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:
• If you have created a User 1 color gamut (recommended) for a well-matched wall,
continue to Step 1e.
• If you prefer maximum brightness rather than a particular color temperature, select
Max
Drives
. Do not change User 1 Color Adjustment in color-matched applications.
4. In the
White Uniformity
menu, set the overall output level to
50.0
and all remaining slide
bars to
0.0
. This decreases the light output just enough throughout the screen so that any
color level can then be increased later as necessary for matching light output from zone-to-
zone. Do not exceed
50.0
for Overall—a higher level likely interferes with achieving brightness
uniformity and is not recommended.
Ensure that overall light output remains well matched from one screen center to the next.
Where necessary, increase or decrease Lamp Power slightly to recover center matches.
5. On each screen, compare the color temperatures in the eight target zones (four edges and four
corners) to that of the color temperature of the center. Compare using a white field only, and
take note of any areas that do not match the center. Also decide if any screen exhibits a more
obvious color shift than other screens—begin with this screen in Step 6.
6. Beginning with the screen that exhibits the most obvious color shift(s), for each edge that
exhibits a noticeably different color temperature from the center, select the corresponding
Uniformity
adjustment menu—
Left, Right, Top
or
Bottom
.
For example, if any part of the left side is too blue, too red or too green, go to the
Left
Uniformity
menu and adjust the colors, for example change their light output, until all
portions of the left side closely match the center color temperature. Adjust an edge first
(focusing on its center), and then adjust the corners.
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