A specialist car lighting dared to criticize their own colleagues when applied LED lights in their models range, even in the most advanced headlight: "lack resolution yet, there are better mechanical solutions with bixenón".
The low resolution is about to end, as announced Daimler: Osram on a project in which collaborated Hella, Infineon, Fraunhofer and, of course, Daimler, have already been able to offer a demonstrator lighthouse with three LED light sources, each with 1,024 points individually adjustable light. In total, with three projectors, more than 3,000 points of light in each headlight. This three and a half year has been funded by the German Ministry of Education and Research.
The xenon headlight can not type with LED
As anyone who has driven in fog, it is not about having a strong light but adequate light in every moment. It adjust the light beam in scope, intensity and pattern was made fairly effective by mechanical movements xenon headlight.
Surely you remember that for an eternity xenon headlights automatically adjust the height, later began lights turn the corner, lights variable range, variable beam and, lately, permanent long blinded to not dazzle. Many engines, space they need and how hard to go lower prices have made this technology has bottomed out, so many manufacturers have abandoned xenon headlights ledes.
High resolution equal to light for every situation
Despite the "wreaths" of ledes in the headlights, manufacturers know that based ledes yet fail to narrow the beam as they would like. They call resolution, and mobile screens because fail to clearly illuminate all there in front of car the shape, intensity and optimum uniformity ... so far. Tiny, 1,024 points of light of each projector lighthouse HD gather in a single chip, including electronics to activate each. So far the matrix headlights "They packaged" several such ledes under the same cover, occupying much space, especially by the necessary electronics, limiting their number within a lighthouse (eight, in the case of Astra, 24 in a Mercedes CLS, for example, even led with dimensions below 2 x 1 mm).
Osram in 2014 and 256 ledes integrated on a chip
Using electronic rather than mechanical adjustments is gained in reliability, space and costs. In addition, the future generation HD LED headlights It has thermal and electrical interface that allows direct connection to the car electronics. To get an idea of the desired level of integration in the aforementioned Mercedes CLS requires four drivers in the car -a rate of 100 calculations per second to define the best beam. Now you can do without that peripheral electronics. Each of the 1,024 points of light is located specifically to illuminate spaces depending on needs based on or turn off each of these "light cones".
Thanks to the "High Definition" active beam "trims" so long tightest light to not dazzle oncoming cars and those who are ahead. By the way, seems to hold the Moore's Law, that every two years the number of transistors on a microprocessor doubles because Osram in 2014 introduced a chip with 256 ledes you could be separately controlled and even make the development is for the subsequent step to the production.
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