Runco Vision 85 - Manual (Page 31)

Installation
Vidikron Vision 85 Owner’s Operating Manual 19
PRE
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IMINAR
Y
Throw Distance Throw distance is the distance measured from the front of the projector to the screen. This is
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.
Figure 3-2. Estimating Throw Distance
The Vision 85 offers a throw ratio of between 1.86 and 2.45. For example, with a 100-inch
wide screen, the Vision 85 has a throw distance range of between 186 inches (4.72 meters)
and 245 inches (6.22 meters).
The Vision 85/CineWide offers a throw ratio of between 1.92 and 2.45. For example, with
a 100-inch wide screen, the Vision 85 has a throw distance range of between 192 inches (4.88
meters) and 245 inches (6.22 meters).
Estimating Throw Distance
Throw Distance (TD) = Screen Width (w) x Lens Throw Ratio
Scr
een width (w)
TD
Vision 85 Throw Ratio: 1.86 to 2.45
Vision 85/CineWide Throw Ratio: 1.92 to 2.45