Audi lighting systems are purely high-tech. They have a strong emotional impact and in the design of the . Audi brand continues to drive substantially progress in automotive lighting technology The latest developments, apart from the familiar Matrix LED technology is OLED (Organic Light Emitting Diode – OLED). and the new Matrix Laser technology were presented at CES 2016 in Las Vegas.
New creative freedom for the design: OLED technology
The new OLED lighting allow an unprecedented extraordinary lighting uniformity and offer extra creative freedom for design. Audi has systematically developed all aspects of the new technology. The first projects are already underway to integrate OLED technology in the taillights of upcoming models including the very next Audi TT RS.
Audi has also unveiled a preview at CES 2016 OLED taillights of the Audi TT RS to be presented in a few months. Audi also reveals these new technologies via its concept car Audi e-tron quattro at the Consumer Electronics Show (CES) 2016 in Las Vegas.
In each OLED unit two electrodes – at least one must be transparent – incorporate many extremely thin layers of organic semiconductor materials. A low DC volts between three and four active and illuminates the layers, each of less than one thousandth of a millimeter thick. The color is based on the molecular composition of the light source.
Unlike light sources such as LEDs, which are made of semiconductor crystals, OLEDs are light sources flat. Their light reaches a new level . homogeneity and can easily be obscured at any brightness level lights do not project any shadow and do not require reflectors, light guides, or similar optical components -. making effective and lightweight OLED units Finally, OLEDs require substantially no cooling.
Rapid progress has been made in OLED technology – in part because of the strength of advanced Audi. If further increases the light density are achieved, OLEDs will soon be able to be also used for turn signals and brake.
Another advantage of OLEDs: they can be divided into smaller segments that can be controlled at different levels of brightness There will also OLED units with multiple colors in. more transparent units. This allows for new lighting scenarios with extremely fast switching times. These illuminated sub-surfaces have very clear boundaries between them. In the future it will be possible to implement technology OLED as Matrix OLED technology at Audi, complementing technologies Matrix LED Matrix and Matrix existing Laser.
OLED technology offers high-end lighting design with a high level of brand recognition value, with a new image vehicle – days and night -. and with a visual differentiation of Audi vehicles compared to competition
Conventional OLEDs are manufactured on a glass substrate and So rigid, a huge effort goes well in the development of flexible OLED. That’s why Audi is considering a variety of materials and manufacturing technology. With a flexible glass extremely thin, thin metal films offer some promise. The application of the material on a plastic film substrate also has great potential. However, in this case, it is still a challenge to encapsulate the OLED and thus to achieve a sufficient degree of durability. Moreover,
this application has great potential offering new design possibilities and cost reduction.
In the rear lights display at CES – which were created as part of an Audi research project in cooperation with Osram and OEMs Hella – a 3D OLED complete module was produced from a single flexible OLED display that was formed in a 3D body by bending smart about different axes.
The 3D light body is easy to see in all angles of vision without requiring any type of optical or additional reflectors. The OLED 3D strongly improve security and provide new opportunities in vehicle design. The development of fire design can take all new ways, because of the homogeneity exceptional lighting surfaces and the ability to ask them precisely.
An extremely fine control: Matrix LED headlights
Matrix LED headlights emphasize the Audi’s expertise in automotive lighting technology. They illuminate the road extremely well in every situation without dazzling other road users.
The beam consists of small LED – 30 per headlight in the Audi Q7, for example, they are combined in groups and emit light through lenses. or via reflectors.
When the switch is set to” Automatic “and the road lights are on, the system becomes active outside densely populated areas – determined from the data navigation – from a speed of 30 km / h
If the board camera detects other road users, the control unit switches off instantaneously (at the speed of light) or individual LED darkens in 64 steps .
The traffic and oncoming cars are excluded from the distribution of light, while all other areas continue to be fully illuminated. Once traffic oncoming happened, the high beam shine once more evenly and at full power.
The new Audi A4 and Audi Q7 offers another function: the glare of road signs Wherever the light hits a road sign that is very reflective sound. intensity is attenuated by about a third.
The Matrix LED in the LED headlights also assume the function of cornering lights, lightening or selectively move the focal point of the light in the direction of the curve .
They do this shortly before the wheel is turned through predictive route data base provided by the MMI navigation plus. Audi is the first automaker to completely replace the mechanical elements of the cornering light by software.
LED Lights: powerful and very effective
Audi LED headlights generate light which resembles daylight with color temperature of about 5500 Kelvin. They are available on all Audi models. The LEDs are maintenance free and are designed to last the life of the car.
In some Audi models, the LED lights provide another safety feature in combination with night vision option. When the night vision assistant detects a pedestrian in the critical area in front of the car, the individual LEDs blink three times in quick succession. This allows to visually distinguish the pedestrian, warning both the pedestrian and the driver.
Clear signals: dynamic flashing lights
Fires dynamic flashing Audi offers on several of its models, send clear signals and unambiguously to the environment on which direction the driver wants to turn. Other road users can quickly detect even if visibility is poor or with their peripheral vision. – making a significant contribution to security
Several hundred meters of beach: auxiliary laser beam
Auxiliary laser beam made their debut in 2014 the sports car high performance – the Audi R8 LMX. They had already been used shortly before the car victorious racing the 24 Hours of Le Mans. – The Audi R18 e-tron quattro
With the new beam laser lights, also available on the new R8, a beam laser module generates a light cone that extends several hundred meters. This doubles the beam range relative to other conventional LED beams. There are four powerful laser diodes in each module, each measuring only three tenths of a millimeter in diameter. They generate a blue laser beam with a coherent monochromatic and 450 nanometers wavelength. A converter converts into the phosphor of the usable white light on the floor with a color temperature of 5500 Kelvin.
The light of the laser beams, which is active from a speed of 60 km / h, provides the driver with key benefits in terms of visibility and safety. A system of sensors based on an intelligent camera detects road users oncoming and automatically dims the light pattern for them.
The next step: the Matrix Laser technology
Audi progressing to the next stage of the development of automotive lighting technology with its Matrix Laser headlights. Subdivided into tiny pixels, the light beam illuminates the high resolution road and with precise control.
The technology used by Audi in the Matrix laser headlights is identified by the acronym DMD (Digital Micromirror Device – Digital micromirror device). This technology is also used in many video projectors.
A matrix of hundreds of thousands of micromirrors whose edges measure hundredths of millimeters in length are The heart of this technology. With the help of electrostatic fields, each individual micro-mirror can be tilted up to 5000 times per second. The light is projected onto the road according to the parameters of the individual mirrors.
With DMD technology, the car can generate the perfect light for all driving situations. The technical possibilities are virtually endless. The targeted light helps the driver stay on track through work zones, for example. When you turn or you move through intersections, it can show the driver the right track, even project lines or similar graphics desired on the road.
The high-resolution light can highlight important traffic signs and avoid dazzling other road users with extreme precision. In addition, it is possible to implement scenarios and / or staging of any graphics or logos desired projection. DMD can also show recommendations for efficient driving and for driving safely projecting symbols on the road.
The Matrix laser headlights are synonymous with a huge degree of additional safety for the driver and for other road users in the vicinity, as well as for driving driven future .
The lighting of work zones
The lighting of work zones is a new future based on Matrix LED Matrix and Laser technologies. It projects two strips light about 15 meters long on the road to indicate the width of the vehicle.
When driving through construction zones on the road or stretches of similar narrow roads, the new lighting function makes driving easier for the driver to determine How much space have on the left and right sides of the car
The most important innovations at Audi lighting the last 20 years
1994. Second generation xenon headlights on the Audi A8
2003: Audi adaptive light on the Audi A8
2004: LED daytime running lights on the Audi A8 W12
2008: 100 Lighthouses % LED on the Audi R8, xenon mercury on the Audi A4
2010: Headlights coupled with the navigation data on the Audi A8
2011: taillights visually uniform LED on Audi A6
2012: Dynamic Indicators on the Audi R8
2013: 100% LED headlights on the Audi A3 compact class for
2013: Matrix LED headlights on the Audi A8
2014: with laser headlights on the Audi R8 LMX
2015: Matrix LED technology and anti-glare function of road signs on the Audi A4 and Q7
2014: Presentation of the Matrix laser technology concept car Audi
2015 prologue: Technology Overview Laser Matrix OLED on the Audi e-tron quattro concept