BASF Touts Lidar-Friendly Coatings
#tech #Carbon #BASF
Chemical giant BASF SE says it has developed a coating technology to help lidar sensors in autonomous cars better detect nearby dark-colored vehicles.
The coating uses “functional” pigments that reduce near-infrared (NIR) absorption and reflective layers that return lidar wavelengths to the host vehicle.
Carbon black-based pigmentations used in dark colors such as black, grey and blue absorb NIR radiation. BASF says even small amounts of carbon black used to tint a light color can lessen lidar performance.
With the new BASF coating, NIR radiation can travel through a dark basecoat with minimal absorption. A reflective layer serves as a mirror to reflect lidar signals and prevent them from being absorbed by subsequent layers within the coating stack, according to the supplier.
BASF developed a concept color called Centripetal Blue—a dark blue that that the company says appears similar to white to lidar systems—as part of its annual Automotive Color Trends earlier this year. The company hopes to put the technology in a production model within five years.
When you think of complex, highly technical devices that you use every day in your car—in fact, possibly as much as three to 10 times per minute—you probably don’t think of your rearview mirror.
Although all OEMs and suppliers do their utmost best to assure nothing but top-notch quality is achieved for their vehicles and systems, sometimes things simply go wrong because, well, that’s just how the Universe is.
People have been dreaming about flying cars since the early days of the auto and aircraft industries.