Runco LS-10I Vertical and Horizontal, Position, Ceiling Installation, Floor Installation

Installation

Proper placement of the projector relative to the screen will yield a rectangular,	Vertical and Horizontal
perfectly-centered image that completely fills the screen.	Position
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. See Figure 3-3.

Ceiling Installation

Ceiling

Height Projection Distance

x

Lens Center

Lens Center

Screen

Floor Installation

Height

Lens Center

x

Screen

Lens Center

Projection Distance

Floor

Figure 3-3. Projector Placement
You can use the lens shift controls on the projector to center the image on the screen.	Lens Shift
Lens shift is generally expressed as a percentage of the screen height or width, as shown
in Figure 3-4and Figure 3-5.

Screen Center

0%

50% Height

Lens Shift

(0.5 x H)

100% Height

Lens Shift

(1.0 x H)

Note: This is a general example of lens shift. Lenses vary in their shift capabilities. No particular

lens or projector is used in this example.

Figure 3-4. Vertical Lens Shift (Example Only)

Runco LS-10i Installation/Operation Manual 19