Runco VX-8d Spécifications télécharger pdf (Page 36)

Installation

20 Runco VX-8d Installation/Operation Manual

PRE

IMINAR

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. See

Figure 3-2.

Figure 3-2. Projector Placement

Vertical and Horizontal

Lens

Shift

You can use the lens shift controls to center the image on the screen. Lens shift is

generally expressed as a percentage of the screen height or width, as shown in

Figure 3-3

and Figure 3-4.

Figure 3-3. Vertical Lens Shift (EXAMPLE ONLY)

➤

Screen

Height

Projection Distance

Ceiling

Lens Center

Ceiling Installation

Screen

Height

Floor

Lens Center

Projection Distance

Floor Installation

Lens Center

➤

Base plate

to lens center =

approx. 5-6" (depending

on the amount of lens shift)

50% Height

Lens Shift

(0.5 x H)

100% Height

Lens Shift

(1.0 x H)

Screen Center

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.

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Runco VX-8d Spécifications Page 36

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