Editing Headlamp (section)

====Timeline====
Audi showed the [[Audi Nuvolari]] concept car with LED headlights in 2003.<ref>{{Cite book|chapter-url=https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5941/594101/LEDs-for-solid-state-lighting-and-other-emerging-applications/10.1117/12.625918.full|chapter=LEDs for solid state lighting and other emerging applications: status, trends, and challenges|first=M. George|last=Craford|editor-first1=Ian T. |editor-first2=John C. |editor-first3=Tsunemasa |editor-first4=Ian E. |editor-last1=Ferguson |editor-last2=Carrano |editor-last3=Taguchi |editor-last4=Ashdown |title=Fifth International Conference on Solid State Lighting |date=2 September 2005|publisher=SPIE|volume=5941|pages=594101|via=www.spiedigitallibrary.org|doi=10.1117/12.625918}}</ref><ref>{{Cite web|url=https://www.auto123.com/en/news/2003-audi-nuvolari-concept/43740/|title=2003 Audi Nuvolari Concept &#124; Car News &#124; Auto123|date=23 August 2003|website=auto123.com}}</ref><ref>{{Cite web|url=https://www.autopista.es/noticias-motor/audi-nuvolari-quattro_80682_102.html|title=Audi Nuvolari quattro|website=Autopista}}</ref> Automotive headlamp applications using [[light-emitting diode]]s (LEDs) have been undergoing development since 2004.<ref>{{cite press release |url= http://www.germancarfans.com/news.cfm/newsid/2050418.005/general/1.html |title=Hella LED Headlamp Study |website=Germancarfans.com |date=18 April 2005 |access-date=29 May 2014 |url-status=dead |archive-url= https://web.archive.org/web/20050913034114/http://www.germancarfans.com/news.cfm/newsid/2050418.005/general/1.html |archive-date=13 September 2005}}</ref><ref>{{cite web |url= http://www.fourtitude.com/cgi-bin/artman/exec/view.cgi/6/1113/printer |title=New-generation LED headlamp prototype with performance equal to HID |website=Fourtitude.com |access-date=2010-12-29 |url-status=dead |archive-url= https://web.archive.org/web/20101224205023/http://www.fourtitude.com/cgi-bin/artman/exec/view.cgi/6/1113/printer |archive-date=24 December 2010}}</ref> In 2004, [[Audi]] released the first car with LED daytime running lights and directionals, the 2004 [[Audi A8]] W12.<ref>{{Cite web|url=https://compoundsemiconductor.net/article-gen/83185|title=Lumileds LEDs used in Audi headlights - News|website=Compound Semiconductor}}</ref><ref>{{Cite web|url=https://www.photonics.com/Articles/Hella_Develops_Audi_LEDs/a18248|title=Hella Develops Audi LEDs|website=www.photonics.com}}</ref>

In 2006 the first series-production LED low beams were factory-installed on the [[Lexus LS (XF40)#LS 600h|Lexus LS 600h / LS 600h L]]. The high beam and turn signal functions used filament bulbs. The headlamp was supplied by [[Koito Industries Ltd]].

In 2007 the first headlamps with all functions provided by LEDs, supplied by [[Magneti Marelli|AL-Automotive Lighting]], were introduced on the V10 [[Audi R8 (Type 42)|Audi R8]] sports car (except in North America).<ref>http://www.magnetimarelli.com/excellence/technological-excellences/the-full-led-technology The Full-LED Technology for Automotive Lighting</ref>

In 2009 [[Hella (company)|Hella]] headlamps on the 2009 [[Cadillac Escalade]] Platinum became the first all-LED headlamps for the North American market.<ref>{{cite journal |title=LEDing the way |journal=Automotive Engineering International |date=2008 |volume=116 |page=20 |url= https://books.google.com/books?id=wV5KAQAAIAAJ&q=First+production+led+headlights |access-date=22 November 2021 |publisher=SAE International |quote=The 2008 Cadillac Escalade Platinum has earned the distinction of being the first production vehicle in the world with all - LED forward lighting}}</ref>

In 2010 the first all-LED headlamps with [[Headlamp#Adaptive highbeam|adaptive high beam]] and what [[Mercedes-Benz|Mercedes]] called the "Intelligent Light System" were introduced on the 2011 [[Mercedes-Benz CLS-Class (W218)|Mercedes CLS]].

In 2013 the first digitally controlled full-LED glare-free "Matrix LED" adaptive headlamps were introduced by [[Audi]] on the facelifted [[Audi A8#2014 model year facelift|A8]], with 25 individual LED segments.<ref>{{Cite web |date=2014-10-16 |title=Audi Matrix LED Headlights |url=https://www.audi.com/com/brand/en/vorsprung_durch_technik/content/2013/10/audi-a8-in-a-new-radiant-light.html |access-date=2022-12-15 |archive-url=https://web.archive.org/web/20141016191416/https://www.audi.com/com/brand/en/vorsprung_durch_technik/content/2013/10/audi-a8-in-a-new-radiant-light.html |archive-date=16 October 2014 }}</ref> The system dims the light that would shine directly onto oncoming and preceding vehicles, but continues to cast its full light on the zones between and beside them. This works because the LED high beams are split into numerous individual light-emitting diodes. High-beam LEDs in both headlights are arranged in a matrix and adapt fully electronically to the surroundings in milliseconds. They are activated and deactivated or dimmed individually by a control unit. In addition, the headlights also function as a cornering light. Using predictive route data supplied by the [[MMI navigation plus]], the focus of the beam is shifted towards the bend even before the driver turns the steering wheel. In 2014: [[Mercedes-Benz]] introduced a similar technology on the facelifted [[Mercedes-Benz CLS-Class (W218)|CLS-Class]] in 2014, called Multibeam LED, with 24 individual segments.<ref>{{cite press release |url= http://media.daimler.com/dcmedia/0-921-1708962-1-1712129-1-0-0-0-0-0-0-0-0-1-0-0-0-0-0.html |archive-url= https://web.archive.org/web/20160304060021/http://media.daimler.com/dcmedia/0-921-1708962-1-1712129-1-0-0-0-0-0-0-0-0-1-0-0-0-0-0.html |archive-date=2016-03-04 |date=4 March 2016 |title=Multibeam LED headlamps: The future of light}}</ref>

As of 2010, LED headlamps such as those available on the [[Toyota Prius]] were providing output between halogen and HID headlamps,<ref name="DVN_Dorissen">{{cite web|url= http://www.drivingvisionnews.com/index.php?option=com_content&view=article&id=1397:interview-with-hans-theo-dorissen-&catid=38:previous-news&Itemid=191 |title=DVN Interview with Hella's Hans-Theo Dorissen, 2 June 2009 |website=Drivingvisionnews.com |access-date=2010-12-29}}{{registration required|date=November 2012}}</ref> with system power consumption slightly lower than other headlamps, longer lifespans, and more flexible design possibilities.<ref>{{cite web |url= http://www.al-lighting.de/index.php?id=984 |title=Production LED headlamp technology & design as of 2007 |website=Al-lighting.de |access-date=2010-12-29 |url-status=dead |archive-url= https://web.archive.org/web/20101123164242/http://www.al-lighting.de/index.php?id=984 |archive-date=23 November 2010}}</ref><ref>{{cite web |url=http://www.treehugger.com/files/2006/10/led_headlights.php |title=LED Headlights Introduced |publisher=TreeHugger |access-date=2009-11-29 |archive-date=1 July 2009 |archive-url=https://web.archive.org/web/20090701091040/http://www.treehugger.com/files/2006/10/led_headlights.php |url-status=dead }}</ref> As LED technology continues to evolve, the performance of LED headlamps was predicted to improve to approach, meet, and perhaps one day surpass that of HID headlamps.<ref>{{cite web|url= http://www.drivingvisionnews.com/index.php?option=com_content&view=article&id=1474:interview-with-michael-hamm-&catid=1:latest-news |title=DVN Interview with AL's Michael Hamm, 8 July 2009 |website=Drivingvisionnews.com |access-date=2010-12-29}}</ref> That occurred by mid-2013, when the Mercedes S-Class came with LED headlamps giving higher performance than comparable HID setups.<ref>{{cite web|url= https://www.drivingvisionnews.com/index.php?option=com_content&view=article&id=4897&Itemid=46
 |title=All-LED Projectors for Merc S-Class, 29 July 2013 |website=Drivingvisionnews.com |access-date=2018-05-09}}</ref>

LED headlamps in recent vehicles have been widely criticized for being too bright and blinding other drivers. [[Federal Motor Vehicle Safety Standard 108]] has not been updated since the introduction of LEDs, and some manufacturers have reportedly engineered headlamps to have a dark spot where they are measured according to the regulation while being over-illuminated in the rest of the field.<ref>{{Cite web |date=2024-12-03 |title=Asleep at the Wheel in the Headlight Brightness Wars |url=https://www.theringer.com/2024/12/03/tech/headlight-brightness-cars-accidents |access-date=2024-12-06 |website=www.theringer.com |language=en}}</ref>