What is Matrix LED technology?
A technology in which individually controlled light-emitting diodes work together in a targeted manner. In the new TT, for example, the high beam is produced by 12 LEDs per headlight. The controller switches them on and off or dims them in 64 steps per LED depending on the traffic situation. This enables the headlight system to produce several million light patterns.
And Matrix laser technology?
With Matrix laser technology, which Audi presented at the CES in Las Vegas in early 2015, a laser that is spatially separated from the headlight produces the light. A chip with hundreds of thousands of separately controlled micromirrors breaks it up into tiny pixels. Matrix laser technology is currently in predevelopment at Audi.
What are the advantages?
Separating the light-generating units from the point of light projection makes very compact, flat headlights possible. The projectors have extremely fast, intelligent and precise control. A nearly infinite number of light patterns can be produced this way, and navigation arrows or similar information can also be projected onto the road in front of the car.
What does DMD stand for in association with the Matrix laser headlights?
The digital micromirror device is the heart of the Matrix laser technology. This is an array of tiny mirrors with edge lengths measures in microns. There are currently hundreds of thousands of mirrors on a carrier. These mirrors can be tilted individually – up to 5,000 times per second.
How is the laser spot configured?
In the Audi R8 LMX, in which the laser spot is used exclusively, four tiny laser diodes in each headlight generate a high beam cone with a range of several hundred meters. The laser spot supplements the LED high beams, and is speed-activated at 60 km/h (37.3 mph) and above.
Isn’t laser light hazardous to the eyes?
Not in the slightest. The laser diodes in the laser spot emit a light with a wavelength of 450 nanometers; in its natural form it has a bluish shimmer. An upstream phosphor luminophore converts the laser into white light suitable for roadway use. It poses no risk to drivers’ eyes.
How do the dynamic turn signals work?
The dynamic turn signals run from the inside out in 150 milliseconds, then remain steadily illuminated for an additional 250 milliseconds. This sends an unequivocal directional signal to the surroundings. It is made up of LEDs or LED blocks.
What exactly are OLEDs?
Organic light-emitting diodes. Unlike conventional LEDs, they are based on an organic, paste-like material. When a voltage is applied, the molecules enclosed in the material release photons, causing the surface to illuminate.
Is that the same technology used in modern televisions?
In principle, yes. At present, OLED are very well suited for high-end displays in the interior, although their brightness is relatively low. Audi is working hard, however, to also use them as tail lights, where the requirements with respect to light yield and robustness are much higher.
What is construction zone lighting?
Another safety-related feature intended to make things easier for the driver. Construction zone lighting projects two strips of light about 15 meters (49.2 ft) long onto the road to indicate the vehicle’s width. When the driver is passing through a construction zone or other bottleneck, they just have to follow this track.
How heavy is a modern, high-end headlight from Audi?
The systems weigh six kilograms (13.2 lb) each, with top-of-the-line headlights weighing roughly seven kilograms (15.4 lb). Audi intends to reduce the weight by half over the next few years with the assistance of the company’s broad-based lightweight construction competence and its experience in racing.
What does Car-to-X mean with respect to lighting technology?
Networking with other cars and the surroundings will further enhance road safety while at the same time reducing fuel consumption. Cars could, for example, share the task of illuminating the road in the future so that each vehicle has to expend less energy. Blinding glare will no longer be in issue when driving with opposing traffic.
And what is machine learning?
The principle of machine learning means that the headlight controllers use the data they themselves collected to further improve the light pattern. The intelligence they use to do this can either be hosted onboard or in the Cloud, in which case data transfer is via the LTE module, i.e. Audi connect.
How many people at Audi are working on the lighting of the future?
Roughly 15 people in lighting predevelopment and design, all in very close, highly flexible collaboration with the others. Organizationally the engineers belong to Electrics/Electronics, which offers major advantages for the rapid development of software and hardware.
The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.