Runco RS-900 Series RS1100 Series Betriebsanweisung

RS-900 and RS1100 Series Installation/Operation Manual

PRE

IMINAR

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 RS-900 Series and RS1100 Series.

➤

Table 3-3. Throw Ratios for the RS-900 and RS1100 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

Standard
RS-900/RS1100

1.87 – 2.20

135.76

159.72

(n/a)

RS-900/CineWide
or
RS1100/CineWide
(Whitney Lens)

(n/a)

1.87 – 2.20

179.52

211.20

RS-900/CineWide
or
RS1100/CineWide
(Rainier II Lens)

(n/a)

1.55 – 1.65

148.80

158.40

RS-900/CineWide
with AutoScope or
RS1100/CineWide
with AutoScope
(Rainier II Lens)

1.87 – 2.20

135.76

159.72

1.55 – 1.65

148.80

158.40

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

Scr

een width (w)