Installation

Vertical and Horizontal

Proper placement of the projector relative to the screen will yield a rectangular,

Position

 

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. See Figure 3-2.

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 3-2. Projector Placement

Vertical and Horizontal

You can use the lens shift controls on the projector remote to center the image on the

Lens Shift

 

screen. Lens shift is generally expressed as a percentage of the screen height or width, as

 

 

shown in Figure 3-3and Figure 3-4.

Screen Center

0%

50% Height

Lens Shift

(0.5 x H)

Base plate

to lens center =

approx. 5-6" (depending

on the amount of lens shift)

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 3-3. Vertical Lens Shift (Example Only)

20

VX-3000d Series Installation/Operation Manual

Page 36
Image 36
Runco VX-3000D operation manual Vertical and Horizontal, Position, Ceiling Installation, Floor Installation, Lens Shift