Internal Optical Adjustments - Christie roadie 25k User Manual

INSTALLATION AND SETUP
2.13 Internal Optical
Adjustments
Contrast Ratio Adjustment
Color Gamut Adjustment
Maximizing Brightness
DMD Convergence
Fold Mirror Adjustment
2-44
Roadie 25K User's Manual
FOCUS ANAMORPHIC LENS:
2.
needs improvement, focus the anamorphic lens too—rotate its
barrel as needed.
In rare instances, shipping and handling may affect the precise factory alignments of
one or more optical components—as a final step during installation, a trained installer
may want to adjust the fold mirror and/or convergence of the DMDs as described
here. In addition, for certain applications and sites you may prefer images having
increased contrast ratio and/or the widest possible color gamut, both of which require
the addition of internal optical components (sold separately) that will slightly reduce
brightness.
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FOR INCREASED CONTRAST RATIO:
the factory can be replaced with an optional smaller aperture that improves contrast
ratio while slightly limiting brightness. Note that some lamps may be incompatible
with some apertures—use only the size(s) recommended for the lamp currently
installed in the projector. Follow the installation instructions provided with the F#
Aperture Kit.
NOTE: The size of any smaller aperture is clearly labeled along its top edge. The
factory-installed standard-size aperture (for maximum brightness) is not labeled.
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FOR THE WIDEST COLOR GAMUT:
projector, near the lens opening. Adjust to match a known standard, such as x=0.265,
y=0.690, or as desired. In applications where maximum brightness is preferred over
increased color gamut, do not add the Yellow Notch Filter (this is the factory default).
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FOR MAXIMUM BRIGHTNESS:
small-diameter high-contrast F# Aperture option in the projector. This is the factory-
default configuration. Also, make sure a standard high-brightness lens is present.
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A convergence problem is evident when one or more projected colors
(red/green/blue) appears misaligned when examined with a proper convergence test
pattern—where normally the 3 colors should overlap precisely to form pure white
lines throughout the image, one or more poorly converged individual colors may
appear adjacent to some or all of the lines. A qualified service technician can correct
as described on the color Convergence Instructions label provided inside the
projection head.
NOTE: Custom Convergence Kit required (available separately).
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If a corner or edge of an image is missing, this may indicate that the fold mirror has
become misaligned with the rest of the optical system and cannot reflect all data
properly. Correct as described below:
If horizontal focus in the image
WARNING
Qualified service technician required.
If desired, the standard F# Aperture installed at
Install the Yellow Notch Filter (optional) inside the
Do not use either the optional Yellow Notch Filter or a
Focus
(ANAMORPHIC)