Vidikron manual Vision 90 Lens Options, Vertical and Horizontal, Position, Minimum

Installation

Table 3-3lists the available lens options for the Vision 90 and their associated throw ratios.

Table 3-3. Vision 90 Lens Options

		Throw Ratio	Throw Distance Range
	Lens Option		(in inches, with 100-inch Wide Screen)
		(Throw Dist. ⎟ Screen Width)
			Minimum	Maximum
	1	1.42 - 1.77	142	177
	2	1.82 - 2.39	182	239
	3	2.42 - 3.57	242	357
	4	3.62 - 5.72	362	572
	Note: Throw distance does not affect image quality, provided these ranges are taken into account.
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 and screen center are aligned with each other, as shown in Figure 3-3.

Ceiling Installation

Ceiling

Height

Projection Distance

Lens Center

x

Screen Lens Center

Floor Installation

Height Screen Lens Center

Lens Center

x

Projection Distance

Floor

Figure 3-3. Projector Placement

3-6 Vidikron Vision Model 90 Owner’s Operating Manual