Lighting manufacturer Hella recently shared details of its full-LED headlamp prototype that uses different transmissive optical elements. Each module in the headlamp contains a multi-chip LED array. ![]()
Special chip arrangements and housing geometries make it possible to produce the cut-off line without additional mechanical shading. As a result, compact headlamp systems can be realized.
The light distribution pattern is generated in a modular manner. A symmetrical basic light distribution with large dispersion provides a substantially illumination in the near-field range in front of the vehicle.
In the central area close to the cut-off line, an area with high illuminance overlaps this basic light distribution and generates the range of the low beam on the left-hand side of the road (oncoming traffic). The long-range asymmetrical Light finger" on the right-hand side of the road provides the necessary long-range orientation for the driver.
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This article was published in the November/December 2007 issue of LEDs Magazine.
To read the full version of this article, please visit our Magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine.
You can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter . About the Author Tim Whitaker is the Editor of LEDs Magazine![]()
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The light distribution pattern is generated in a modular manner. A symmetrical basic light distribution with large dispersion provides a substantially illumination in the near-field range in front of the vehicle.
In the central area close to the cut-off line, an area with high illuminance overlaps this basic light distribution and generates the range of the low beam on the left-hand side of the road (oncoming traffic). The long-range asymmetrical Light finger" on the right-hand side of the road provides the necessary long-range orientation for the driver.
+++++++
This article was published in the November/December 2007 issue of LEDs Magazine.
To read the full version of this article, please visit our Magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine.
You can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter . About the Author Tim Whitaker is the Editor of LEDs Magazine
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