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Installation
Choosing A Screen
Ambient Light
Throw Distance
Runco 3Dimension Series projectors produce exceptional 3D and 2D content. Because it
is estimated that 2D content still comprises more than 90 percent of the material viewed in
home theaters and private cinemas, the projection screen is a significant factor and must
accommodate both 2D and 3D viewing.
3D projection screens use a special silver material that retains the polarization properties
of the light as it hits the screen and directs the light to the correct eye, producing a 3D
image with no cross-talk or "ghosting." Conventional white or gray screens that work just
fine for 2D won't work at all for 3D.
Runco has rated home theater screens on their ability to produce 2D and 3D content on a
scale it calls PISCES™ (Polarized Image Sequence Conservation and Enhancement
Standard). Specifications and testing criteria include:
• Polarization preservation (also referred to as "extinction ratio");
• Image quality;
• Viewing angle; and
• Brightness for home theater for both 2D and 3D content on the same screen.
Runco makes its PISCES™ rated screen list available to authorized Runco dealers so they
can support specifying the best screen for every home theater application.
In 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 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
Figure 3-1. Estimating Throw Distance
T D
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D-73d Series Installation/Operation Manual
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Troubleshooting
