Runco VX-2000d Manuel d'utilisateur télécharger pdf (Page 34)

Installation

22 Runco VX-2000d Owner’s Operating 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 and screen center are aligned with each other, as shown in

Figure 3-3.

Figure 3-3. Projector Placement

Vertical Lens Shift If it is not possible to align the projector and screen as shown in Figure 3-3, 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 3-4.

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

➤

Height

Projection Distance

Ceiling

Ceiling Installation

Screen

Height

Floor

Lens Center

Projection Distance

Floor Installation

Lens Center

Screen Lens Center

➤

50% Height

Lens Shift

(0.5 x H)

100% Height

Lens Shift

(1.0 x H)

150% Height

Lens Shift

(1.5 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-2000d Manuel d'utilisateur Page 34

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