Overview
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Maximum height without seams: 99" (251 cm) for screens over 120" (305 cm) wide (some screen models may vary). No maximum height without seams for screens up to 120" (305 cm) wide.
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Can be used on motorized, manual, and some portable screens.
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Even lighting required to avoid hot spots and shadows.
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.
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
Ideal for use in video production and recording, the Green Chroma Key surface features an excellent uniformity and consistent surface color edge to edge. Green Chroma Key is available through a quote from your local Draper representative.