Runco LIGHTSTYLE LS-HB Instrukcja Użytkownika Strona 33

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Installation
Runco LS-HB Installation/Operation Manual 17
PRE
L
IMINAR
Y
Ambient LightIn general, minimize or eliminate light sources directed at the screen. Contrast ratio in your
images will be noticeably reduced if light directly strikes the screen, such as when a shaft
of light from a window or floodlight falls on the image. Images may then appear washed
out and less vibrant.
Throw DistanceThrow 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
Estimating Throw Distance
Throw Distance (TD) =
Screen Width (w) x Lens Throw Ratio
TD
Screen width (w)
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