Vidikron Vision 15ET/CineWideTM operation manual 3. Throw Ratios for the Vision 15 Series

Installation

Throw distance is the distance measured from the front of the projector to the screen. This is	Throw Distance
an important calculation in any projector installation as it determines whether or not you
have enough room to install your projector with a desired screen size and if your image will
be the right size for your screen.
You can quickly estimate the throw distance by taking the width of the screen and
multiplying it by the lens throw ratio; see Figure 3-2.The result of this calculation tells you
roughly how far back the projector should be positioned from the screen in order to project a
focused image large enough to fill the screen.

Estimating Throw Distance

Throw Distance (TD) = Screen Width (w) x Lens Throw Ratio

Screen	width
		(w)

TD

Figure 3-2. Estimating Throw Distance

Table 3-3gives the throw ratios for the Vision 15 Series.

Table 3-3. Throw Ratios for the Vision 15 Series

	Throw	Throw Range in		Throw Ratio	Throw Range in
		inches, with			inches, with
				with Primary
	Ratio with	72.6x40.8-inch			96x40.8-inch (2.35:1)
Projector Model				Lens and
	Primary	(1.78:1) Screen			Screen
				Anamorphic
	Lens Only
				Lens
		Minimum	Maximum		Minimum	Maximum
Vision 15	1.36 - 1.70	98.74	123.42		(n/a)
Vision 15ET	1.69 - 2.13	122.69	154.63		(n/a)
Vision 15ET/		(n/a)		1.69 - 2.13	162.24	204.48
CineWide

Vidikron Vision Model 15 Installation/Operation Manual 15