DHS Systems 1003080, Техническое руководство

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Operation & Maintenance Medium SXGA+ Projection System 0008
Part Number 1006380 0008-4 DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be reproduced
for release to a third party without written consent of DHS Systems LLC.
IMAGE CALIBRATION AND
CORRECTION
Some applications require very precise
color reproduction of the images. In
addition, depending on application,
different color standards are applied.
When preparing for correct color
reproduction, both the source and the
projector must be considered.
The projector offers several ways to
calibrate colors, as well as correction of
the input signal.
The source may need correction
because it is usually not calibrated
from the factory, which leads to higher
or lower signal levels than nominal. In
addition, R, G and B may be slightly
different (not balanced), adding a tint to
the image. Correcting the input signal
means adjusting the gain (contrast)
and offset (brightness) of R, G and B
individually. This is in addition to the
normal brightness and contrast
controls.
The projector may also need
calibration regardless of the source
signal, because there may be slight
differences in optical coatings, as well
as the spectral distribution of individual
lamps, which can even change over
time. Calibrating the projector can be
done in different ways, either by
changing the color temperature, by
defining the x and y color coordinates
or by R, G and B adjustment.
See the MENU system, PICTURE sub
menu, for details on how to correct and
calibrate.