
Instrumentation
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could cause a ash right in front of the driver. A visual warning could also be
displayed when forward-facing radar detects an impending collision. Current
HUD systems are for straight-ahead vision, but liquid crystal rear view mirrors,
used to dim and cut headlight glare automatically, can be used as an effective
display screen for rear facing, blind spot detecting radar.
One interesting study is to determine exactly where the driver is looking
at any point in time, which could be used to determine where the head-up
display would be projected at any particular time. The technique involves tiny
video cameras, coupled to a laser ...