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Advanced Screen Technology
Although the projection screen is one
of the key components in a display
system, its significance is often
overlooked. The type of screen
technology employed is critical for
multi-channel displays and especially
for passive stereoscopic projection.
In close collaboration with the world's
leading screen suppliers, Barco is
constantly evaluating the latest screen
technologies and has developed
proprietary and customized screen
solutions for the most demanding
applications.
There is no magic screen material nor
configuration or set-up that performs
perfectly for every installation
Mirror
Configurations
To minimize the floor space required for rear-projection
installations, optical mirror systems are often used to fold the
light path. Barco uses only specially selected front-coated mirrors
of the highest quality. Advanced 3D engineering software is
utilized to calculate the optimal positioning of the mirrors,
projectors, and screen, as the complex light paths within a
projection display system are precision-designed to the tightest
tolerances possible.
Wide
Viewing Angles
Providing wide horizontal and vertical viewing angles and
maintaining consistent corner-to-center brightness levels are
essential for large-format stereoscopic projection display systems.
In order to eliminate hot spots and color shifts the gain and
diffusion properties of a screen must be matched precisely
to the type of projection technology utilized (CRT, LCD, or DLP™).
The positioning of the projectors (on-axis or off-axis), their
brightness level, and the type of stereoscopy (active or passive)
are important considerations as well.
Barco offers screens that can be
optimized for diffusion with different
gain factors. Total half-gain angles
can range from 45 to 100 degrees,
depending on the specific needs of
the application.
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