Vidikron SERIES 1080p ユーザーズマニュアル

ページ / 88
16
Vidikron Vision 70 Series Owner’s Operating Manual
PRE
L
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 3-1. 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 3-1. Estimating Throw Distance
Table 3-3 gives the throw ratios for the Vision 70, Vision 70/CineWide and Vision 70/CineWide 
with AutoScope. 
Table 3-3. Throw Ratios for the Vision 70 Series 
Projector Model
Throw Ratio 
with Primary 
Lens Only
Throw Range in 
inches, with 
72.6x40.8-inch 
(1.78:1) Screen
Throw Ratio 
with Primary 
Lens and 
Anamorphic 
Lens
Throw Range in 
inches, with 
96x40.8-inch (2.35:1) 
Screen
Minimum Maximum
Minimum Maximum
Vision 70
1.58 – 1.90
114.71
137.94
(n/a)
Vision 70/CineWide
(n/a)
1.85 – 1.90
177.60
182.40
Vision 70/CineWide 
with AutoScope
1.58 – 1.90
114.71
137.94
1.25 – 1.51
120.00
144.96
Estimating Throw Distance
Throw Distance (TD)  = Screen Width (w)  x  Lens Throw Ratio
Scr
een w
idth (w)
TD