Vertical & Horizontal - Christie Mirage S+/HD/WU User Manual

Section 2: Installation and Setup
manufacturing tolerances for lens focal length, actual throw distance and vary ±5% between
lenses with the same nominal throw ratio.
2.3.2 Vertical & Horizontal
The Vertical position of the projector in
relation to the screen also depends on the
size of the screen and the lens type. Correct
vertical position helps ensure that the image
will be rectangular in shape rather than
keystoned (having non-parallel sides), and
that image focus and brightness both remain
optimized.
If necessary, vertical position of the image
can be offset (i.e., moved up or down in
relation to lens center) by using the
motorized Offset function.
Starting with no offset, the image from this
projector can be moved up or down by a
maximum distance of 525 pixels for
SXGA+ resolution and 643 pixels for HD
and WUXGA resolution, resulting in the
entire image (more for HD/WUXGA) being
displayed above or below lens center. See
Table 2.1 and Figure
NOTE: Not applicable for a fixed lens.
2-16
Figure 2-22 Calculating Throw Distance
2-23.
Figure 2-23 Maximum Vertical Offset
Roadster, Matrix WU, Mirage S+/HD/WU User Manual
020-100002-06 Rev. 1 (04-2011)