page_title: Headlamp
section_title: Laser
hierarchical_section_title: Headlamp / Light sources / Laser
caption_attribution_description: Virtual Cockpit of the new Audi TT, MMI Touch, conceptual Laserlights, zFAS Sensor Motherboard in early alpha and beta status, the Audi CEO Rupert Stadler and his head of electronics development Ricky Hudi
context_page_description: A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, headlamp is the term for the device itself and headlight is the term for the beam of light produced and distributed by the device.
  Headlamp performance has steadily improved throughout the automobile age, spurred by the great disparity between daytime and nighttime traffic fatalities: the US National Highway Traffic Safety Administration states that nearly half of all traffic-related fatalities occur in the dark, despite only 25% of traffic travelling during darkness.
  Other vehicles, such as trains and aircraft, are required to have headlamps. Bicycle headlamps are often used on bicycles, and are required in some jurisdictions. They can be powered by a battery or a small generator like a bottle or hub dynamo.
context_section_description: A laser lamp uses mirrors to direct a laser on to a phosphor that then emits a light. Laser lamps use half as much power as LED lamps. They were first developed by Audi for use as headlamps in the 24 Hours of Le Mans.
  In 2014, the BMW i8 became the first production car to be sold with an auxiliary high-beam lamp based on this technology. The limited-production Audi R8 LMX uses lasers for its spot lamp feature, providing illumination for high-speed driving in low-light conditions. The Rolls-Royce Phantom VIII employs laser headlights with a high beam range of over 600 meters.
caption: Audi Matrix Laser headlamp at Consumer Electronics Show 2014
exif: {"Image Make": "Canon", "Image Model": "Canon EOS M", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2014:01:07 22:02:00", "Image Artist": "", "Image YCbCrPositioning": "Co-sited", "Image Copyright": "", "Image ExifOffset": "360", "GPS GPSVersionID": "[2, 3, 0, 0]", "Image GPSInfo": "9254", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "11144", "Thumbnail JPEGInterchangeFormatLength": "11517", "EXIF ExposureTime": "1/250", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "800", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF RecommendedExposureIndex": "800", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2014:01:07 22:02:00", "EXIF DateTimeDigitized": "2014:01:07 22:02:00", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "8", "EXIF ApertureValue": "5", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "50", "EXIF SubSecTime": "32", "EXIF SubSecTimeOriginal": "32", "EXIF SubSecTimeDigitized": "32", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2048", "EXIF ExifImageLength": "1365", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "9026", "EXIF FocalPlaneXResolution": "864000/149", "EXIF FocalPlaneYResolution": "1152000/199", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "", "EXIF BodySerialNumber": "034342202082", "EXIF LensSpecification": "[18, 55, 0, 0]", "EXIF LensModel": "EF-M18-55mm f/3.5-5.6 IS STM", "EXIF LensSerialNumber": "0000413735"}