The MLA technology can project images or graphics from almost any angle onto any surface without distortion. This opens up a range of possibilities, for instance, improved safety and vehicle function, as well as innovative design effects, which are already being implemented in trials and offer the driver improved guidance capabilities. An interesting example comes in making drivers aware of the presence of electric vehicles, which move almost silently and are therefore not always noticeable if not in plain view; this new technology could make other road users aware of them with projections on the road surface.
According to the German company, lighting design is gaining importance not only for applications in the automotive industry, but in brand differentiation and public safety. “Future applications could be to project graphics onto the street to increase traffic safety,” says Philipp von Trotha, Business Development Manager at EDL Rethschulte. “The same applies to the use of light-based assistance systems for the driver in the interior. The advantages of MLA technology in a very limited space and its potential for the development of lighting design concepts for car manufacturers are further aspects that make the range of applications of this technology interesting.”
EDL has patented their 3D MLA technology, which is already being successfully used in the advertising market. It consists of numerous micro-lenses the size of a match head; on the surface of a square meter, that is 253,000 lenses manufactured with an accuracy of under 1µm. During manufacturing, the image information is delivered by an LED exposure unit patented by EDL, which ensures precise orientation.
Whereas previous 3D processes for displays rely mostly on holography and auto stereoscopy, EDL’s patent is based on light field technology. It can be used to produce high-quality 3D images that can be seen without the need for glasses or other aids.
“The biggest challenge of MLA technology is the series suitability in the automotive cycle,” says von Trotha. “The requirements in terms of performance and durability are particularly high here.”
MLA technology incorporates a special film located behind the micro-lenses, and is capable of storing large quantities of data. This is necessary because each of the 253,000 lenses is capable of displaying a full image made up of 65,000 pixels, which deviates by a few thousandths from its neighbor, projecting objects approximately 1 meter away from the display.
This new and innovative technology has exciting and numerous applications, with futuristic developments for the automotive sector in particular. von Trotha adds, “In the vehicle cockpit of the future, it will be possible to create holographic operation elements, such as a three-dimensional controller or switch projected virtually from the center console, which the driver can comfortably operate by hand and are captured by sensors.”
Scientists at Tokyo Institute of Technology have shown that copper oxide particles on the sub-nanoscale are more powerful catalysts than those on the nanoscale. These subnanoparticles can also catalyze the oxidation reactions of aromatic hydrocarbons far more effectively than catalysts currently used in industry.Lire la suite
European project CPVMatch drives solar module efficiency up to 41.4 per cent.
In the development of photovoltaic technologies, Concentrator Photovoltaics (CPV) has so far achieved the highest efficiency for the conversion of sunlight into electricity. The basis for this latest achievement depends on special multi-junction solar cells as well as the ideal interplay between the cell and the module optics.