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Runco CL-610 Series Owner’s Operating Manual 17
PRE
L
IMINAR
Y
Vertical and Horizontal
Position
Proper placement of the projector relative to the screen will yield a rectangular,
perfectly-centered image that completely fills the screen.
Ideally, the projector should be positioned perpendicular to the screen and in such a way
that the lens center is aligned with either the top or bottom edge of the screen area, and
centered horizontally.
The top of the projected image is even with the lens center when the projector is inverted
(ceiling-mounted). Likewise, the bottom of the projected image is aligned with the lens
center when the projector is upright (as in a floor installation). See
Figure 3-2.
Figure 3-2. Projector Placement
Folded OpticsIn rear-screen applications where space behind the projector is limited, a mirror may be
used to fold the optical path, as shown in
Figure 3-3. The position of the projector and
mirror must be accurately set. If you are considering this type of installation, contact your
dealer for assistance.
Figure 3-3. Folded Optics
Screen
Height
Projection Distance
Ceiling
x
Lens Center
Lens Center
Ceiling Installation
Screen
Height
Floor
Lens Center
Projection Distance
Floor Installation
Lens Center
x
Screen
Mirror