GM Working to Develop Advanced Head-Up Display Technology; Would
Span Entire Width of Windshield
March 17, 2010
Motors' research and development department, along with several
universities, are working on a system that would use data gathered
from an array of vehicle sensors and cameras and project images
generated by compact ultraviolet lasers directly onto the entire
surface of the windshield, according to a release issued by the
auto manufacturer today.
"We're looking to create enhanced vision systems," says
Thomas Seder, group lab manager-GM research and development.
Seder is working with Carnegie Mellon University and The University
of Southern California, as well as other institutions, to create
a full windshield head-up system to use night vision, navigation
and camera-based sensor technologies to improve driver visibility
and object detection ability.
"Let's say you're driving in fog, we could use the vehicle's
infrared cameras to identify where the edge of the road is and the
lasers could 'paint' the edge of the road onto the windshield so
the driver knows where the edge of the road is," Seder says.
To create the system, the windshield is coated with a series of
transparent phosphors which emit visible light when excited by a
light beam-in this case from a compact laser-and it becomes a large
area transparent display. (Though several head-up display systems
already are in existence today, most of these utilize only a small
part of the windshield-while this one uses the entire surface.)
"This design is superior to traditional head down display-based
night vision systems, which require a user to read information from
a traditional display, create a mental model and imagine the threat's
precise location in space," Seder says.
As an added safety feature, the head-up system can be combined
with automated sign- reading technology, similar to the Opel Eye
system that debuted on the 2009 Opel Insignia, to alert the driver
if they are driving over the posted speed limit or if there's impending
construction or other potential problems ahead. Additionally, the
system can use navigation system data to alert the driver of their
desired exit by reading overhead traffic signs.
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