Runco D-73D operation manual Ambient Light, Throw Distance

Installation

Choosing A Screen ➤ 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.

Ambient Light ➤	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 ➤	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.

24 D-73d Series Installation/Operation Manual