Installation

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.

Estimating Throw Distance

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

Screen

width

 

 

(w)

 

 

TD

Figure 3-1. Estimating Throw Distance

Table 3-3lists the throw ratios for the CL-610 Series.

Table 3-3. Throw Ratios for the CL-610 Series

 

 

Throw Range in

Throw Ratio

Throw Range in

 

 

inches, with

inches, with

 

Throw Ratio

with Primary

 

72.6x40.8-inch

96x40.8-inch (2.35:1)

Projector Model

with Primary

Lens and

(1.78:1) Screen

Screen

 

Lens Only

Anamorphic

 

 

 

 

 

 

 

 

 

Lens

 

 

 

 

Minimum

Maximum

Minimum

Maximum

 

 

 

 

 

 

 

 

 

 

CL-610

1.37 - 1.82

99.46

132.13

 

(n/a)

 

 

 

 

 

 

 

 

CL-610/CineWide

 

(n/a)

 

1.55 - 1.82

148.80

174.72

 

 

 

 

 

 

 

CL-610LT

1.87 - 2.47

135.76

179.32

 

(n/a)

 

 

 

 

 

 

 

 

CL-610LT/

 

(n/a)

 

1.87 - 2.47

179.52

237.12

CineWide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

Runco CL-610 Series Owner’s Operating Manual

Page 28
Image 28
Runco Throw Range Throw Ratio Inches, with, Projector Model, Lens, Screen, CL-610/CineWide 148.80, CL-610LT 135.76