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01/02/2006
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A ‘light curtain’ using LED technology could spawn new concepts in highly distinctive combination rear lamps.
Light from concealed LEDs radiates sideways into a flat, light-guiding plastic plate and is distributed evenly on the inside of the plate by reflection. There are light-scattering coupling-out elements on this plate that direct the light forward and produce the effect of a homogeneously illuminated surface.
The homogeneous appearance of the lamps – no matter the viewing angle – is convincing. Technical advantages, according to the developer, Hella, include the ability to produce extremely low-profile designs. The company says the technology will be ready for series production in one or two years.
Hella is combining two new technologies in the combination rear lamp prototype for an imaginary sports car. Three plastic three-dimensional prism rods arranged in parallel take over the functions of direction indicator (outside) and stop light (inside). Two high-performance LEDs are all that each light guide needs as a light source. The taillight is realised as a light curtain in the background and ensures a large-area homogeneous appearance for the combination rear lamp.
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Author
Roger Bishop
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Copyright European Automotive Design.
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