Basic Image Alignment; Basic Optical Alignment Procedure - Christie CP2000-SB User Manual

2.7

Basic Image Alignment

NOTE: Assumes projector is fully assembled and powered up in its final location.
This procedure ensures that the image reflected from the DMDs is parallel to and well-centered with both the
lens and screen. This initial optical alignment is the foundation for optimizing images on the screen, and must
be completed before final boresight adjustments. To save the focus, offset and zoom settings to the channel,
you must make the adjustments using the motorized lens mount adjustment features in the Main: Lens menu
or Custom: Lens menu from the TPC. Using the knobs on the lens mount to adjust the position does not save
the settings to the channel. They are designed for temporary use and will therefore be lost once the channel
changes. Ensure the CP2000-SB is properly positioned relative to the screen before you begin. Refer to Figure
2-2 and Figure 2-28.

2.7.1 Basic Optical Alignment Procedure

1. Display a good test pattern appropriate for analyzing image focus and geometry, such as a single crosshair
centered across the image.
2.
COARSE FOCUS:
only. Refer to
point, just center focus.
3.
CENTER THE IMAGE IN THE LENS
until the image is centered within the lens perimeter. A full white field works best for this.
4.
RE-CHECK SIDE-TO-SIDE LEVELING:
(refer to Figure 2-4) so that the top edge of the image is parallel to the top edge of the screen. Refer to
Figure 2-35.
CP2000-SB User Manual
020-100162-06 Rev. 1 (03-2014)
Do a quick preliminary focus and (if available) zoom adjustment with the primary lens
Section 3.9 Working with the
: Holding a piece of paper at the lens surface, adjust offsets as necessary
Figure 2-35 Level the Top Edge
With a good test pattern on screen, double-check projector leveling
Lens. Do not worry about consistency across the image at this
Section 1: Introduction
2-23