LED headlight question
Thread Starter
Joined: Jul 2002
Posts: 2,063
From: Reno, NV
LED headlight question
I've been searching for the past couple days but just can't seem to find anything worthwhile.
Anyhow, I'm very interested in the Audi LED headlight construction, not the row of LED's but the actual headlight bulb (for lack of a better term).
Do anyone know what type of LED's they are using to make their headlights? What are they using the to control the beam pattern?
Or if nothing else, have you found any good websites that expound upon using LED's for headlights?
Thanks
Anyhow, I'm very interested in the Audi LED headlight construction, not the row of LED's but the actual headlight bulb (for lack of a better term).
Do anyone know what type of LED's they are using to make their headlights? What are they using the to control the beam pattern?
Or if nothing else, have you found any good websites that expound upon using LED's for headlights?
Thanks
Senior Member
Joined: Apr 2004
Posts: 1,861
From: Atlanta
no idea... but I'm sure it's got to be $$$.
edit... took two seconds to google..
edit... took two seconds to google..
http://www.ledsmagazine.com/news/9/2/4
Audi first featured a full-LED headlight design in 2008 on its R8. They are also used on the A6 luxury sedan. On the A8, ten LED modules make up the low beam in a wing-shaped pattern, while an underlying string of 22 white and 22 yellow LEDs constitute the daytime running lights and turn signals. The white LEDs use a color temperature of 5500K to match daylight and enhance contrast of roadway objects.
The LED luminaire design is combined with intelligent features such as a high-beam assistant that automatically detects the headlights of oncoming traffic and the rear lights of other road users and responds by varying the position and width of the LED headlights accordingly.
Audi has stated that in the first year of sales, cars equipped with LED headlights accounted for a reduction of 25,000 tons of CO2 emissions. LED headlights are four times as efficient as halogen lamps and they require the vehicle’s alternator to replenish less energy, saving fuel.
Audi first featured a full-LED headlight design in 2008 on its R8. They are also used on the A6 luxury sedan. On the A8, ten LED modules make up the low beam in a wing-shaped pattern, while an underlying string of 22 white and 22 yellow LEDs constitute the daytime running lights and turn signals. The white LEDs use a color temperature of 5500K to match daylight and enhance contrast of roadway objects.
The LED luminaire design is combined with intelligent features such as a high-beam assistant that automatically detects the headlights of oncoming traffic and the rear lights of other road users and responds by varying the position and width of the LED headlights accordingly.
Audi has stated that in the first year of sales, cars equipped with LED headlights accounted for a reduction of 25,000 tons of CO2 emissions. LED headlights are four times as efficient as halogen lamps and they require the vehicle’s alternator to replenish less energy, saving fuel.
Last edited by UGAd13; Feb 10, 2012 at 01:28 PM.
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