Overview
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Maximum image height: 100” (254 cm).
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Extra wide viewing cone. Typical contrast.
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Gain: 1.0. Recommended viewing cone: 180°.
Decoding Viewing Surface Names
Each surface has a name that includes the characteristics it has. The following shows
an example with definitions and examples of each area listed below.
![Viewing Surface Key](https://www.draperinc.com/images/ProjectionScreens/Draper_ViewingSurfaceKey_image.jpg)
X: Extra-wide. Half gain is greater than 60°
M: Moderate. Half gain is 30-60°
C: Controlled. Half gain is less than 30°
T: Typical. Surfaces with "typical" contrast are white in
color and are generally recommended for use where ambient light is
controlled.
H: High. Surfaces with "high" contrast usually have a grey
surface or substrate. Their black retention is enhanced and they
perform well under reasonable levels of ambient light.
S: Superior. This designation is reserved for surfaces with
remarkable contrast and resistance to ambient light. Our
"superior" surfaces will meet or exceed the contrast
offered by any competitive viewing surface.
The numeric portion of the name is its typical peak gain x 1000. Gain
levels of surfaces cover the full range from 0.6 to 3.2, and minor
variations may occur between the samples. Lower gain surfaces offer
excellent uniformity across wide viewing cones, for excellent edge
blending and consistent reproduction with short throw projectors.
Higher gain surfaces offer a more brilliant display in a variety of
settings.
* Gain is a measure of reflected or transmitted
brightness as compared to a block of magnesium carbonate, which
serves as the industry's standard for gain of 1.0. A more familiar
"real-world" comparison is with a matt white projection
screen. Most matt white screens have a fairly uniform light
distribution pattern with gain of approximately 1.0. Screens that
appear brighter on axis are concentrating reflected light in a
narrower area: the gain may be 2.5 on axis but 0.5 at 60° to the
side.
Some viewing surface codes include an E or V suffix after the gain
number.
E: Indicates a self-supporting viewing surface that is part of the
OptiView family and/or suitable for Draper Series E non-tensioned
screen models.
V: Indicates the surface is part of our OptiFlex family of tensioned
surfaces and/or suitable for Draper Series V tensioned screen
models.
Viewing Surface Family
The ClearSound family features premium acoustically-transparent viewing
surfaces. Available with microscopic perforations and fine-weave
acoustically-transparent fabrics that allow sound to travel through the fabric.
This ensures the highest quality experience in audio visual applications by providing
a cinematic experience. The combination of self-supporting and tensioned surfaces means
that almost any Draper projection screen model can be provided with a ClearSound viewing
surface. Each ClearSound surface has varying maximum size limitations, so contact your
representative for more info.