[DeTomaso] more on LED headlights
Larry - Ohio Time
Larry at OhioTimeCorp.com
Fri Oct 7 12:55:12 EDT 2016
Modern headlamps are much brighter and whiter than in the past, but
sometimes brighter isn't necessarily better. Although blinding beams are
useful on a deserted backroad, they can dazzle other drivers around town. In
an attempt to solve the problem, Daimler has developed a new smart pixel
system, able to more precisely mold its beam than existing adaptive
headlights.
Although current adaptive high-beam systems work reasonably well, their
effectiveness is limited by packaging constraints. When sensors detect
another car and driver that's about to be dazzled, they turn off (or dim)
individual lighting units within the headlight array to create a gap in the
beam.
That means that, along with the LED units themselves, the headlamp needs to
house extra electrical components to operate the adaptive beam. With so
little space to work with at the front of cars, this limits the number of
individual LEDs that can be packed in, which in turn limits the overall
brightness of the car's headlights.
Smart pixel headlamps work around this by packing 1,024 individual,
controllable pixels into one "chip." Along with the little pixels, each chip
includes all the hardware to control them, making them more space efficient
than the current standard.
Along with their space efficiency, and because the smart pixel LEDs have so
many individually-adjustable light outputs, their beam can be controlled
much more precisely. That means better molding of the dark spot around
oncoming cars, and the ability to mimic mechanical "corner lighting"
systems, which can illuminate the inside of a bend by turning the headlights
with motors.
At the moment this technology is in its infancy, but Daimler and partners
are currently working to get it ready for future series production.
Source: Daimler
Larry (walks toward the light) - Cleveland
-------------- next part --------------
Modern headlamps are much brighter and whiter than in the past, but
sometimes brighter isn't necessarily better. Although blinding beams
are useful on a deserted backroad, they can dazzle other drivers around
town. In an attempt to solve the problem, Daimler has developed a new
smart pixel system, able to more precisely mold its beam than existing
adaptive headlights.
Although current adaptive high-beam systems work reasonably well, their
effectiveness is limited by packaging constraints. When sensors detect
another car and driver that's about to be dazzled, they turn off (or
dim) individual lighting units within the headlight array to create a
gap in the beam.
That means that, along with the LED units themselves, the headlamp
needs to house extra electrical components to operate the adaptive
beam. With so little space to work with at the front of cars, this
limits the number of individual LEDs that can be packed in, which in
turn limits the overall brightness of the car's headlights.
Smart pixel headlamps work around this by packing 1,024 individual,
controllable pixels into one "chip." Along with the little pixels, each
chip includes all the hardware to control them, making them more space
efficient than the current standard.
Along with their space efficiency, and because the smart pixel LEDs
have so many individually-adjustable light outputs, their beam can be
controlled much more precisely. That means better molding of the dark
spot around oncoming cars, and the ability to mimic mechanical "corner
lighting" systems, which can illuminate the inside of a bend by turning
the headlights with motors.
At the moment this technology is in its infancy, but Daimler and
partners are currently working to get it ready for future series
production.
Source: Daimler
Larry (walks toward the light) - Cleveland
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