Hella has announced it is supplying claimed world first three-layered multibeam-LED headlamps for Daimler's redesigned Mercedes-Benz E-Class. The lamps were developed jointly by automaker and supplier.
The three-layered display includes 84 individual controllable LEDs per headlamp that vary light distribution depending on traffic, weather and road conditions. The integrated adaptive high beam assistant plus allows more frequent use of the vehicle's high beams.
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Unlike static high-beam headlamps, the adaptive high-beam function can selectively mask light patterns directed at oncoming vehicles within a fraction of a second. The system uses a windscreen-mounted camera to assess the driving environment. The adaptive system blocks light aimed directly at an oncoming vehicle but still illuminates the areas adjacent to oncoming traffic. It provides maximum illumination of the roadway for the driver and prevents glare for oncoming drivers.
A newly developed adverse weather light also reduces glare from the roadway in rain by specifically dimming individual LEDs in the low beam. The system reduces glare from illuminated road signs by selectively reducing the brightness of individual LEDs.
Two light guides above the main headlamp generate the direction indicators, daytime running lights and position lights in a beacon design. Added visual effects in the light guides are created by a blue 'coming-home' light which switches on as soon as the car is unlocked.
Claimed first headlamp with variable configurable low beam and high beam
The LED module includes 84 LEDs arranged in three lines which can be controlled individually. This allows precise control of the light pattern for both high and low beams without the need for mechanical actuator units. It marks the first time dynamic bend lighting has been implemented purely by electronics.
New materials
In another claimed first, transparent silicone plastics are being used as the primary optics for an LED headlamp. Silicone plastic replaces thermoplastics and is resistant to the high energy radiation of LEDs and, in contrast to glass, can be machined more precisely to meet strict tolerances in the manufacturing process.
The silicone lens resembles a small scrub brush with distinct 'fingers' that direct the light from the individual LEDs to the front lens which is tucked behind a focusing outer lens of the headlamp module.
Mercedes starts E-Class long wheelbase production at Beijing Benz
