CNB™ Film heaters
For ADAS & LED headlamps
Any-weather safe autonomous driving
The number of vehicles with active safety applications is rapidly increasing, paving way for fully autonomous driving. The increase in Advanced Driver-Assistance Systems (ADAS) is fueled by new regulations and consumer interest towards applications that help driver with monitoring, warning, braking and steering tasks. Accurate object detection and range measurement will become increasingly important moving from ADAS level 2+ to higher levels of vehicle automation. As cars are starting to take control over critical driving functions, the driver must be able to rely on the systems always working, in any weather conditions.
However, as with any new technology, there are roadblocks to ADAS uptake. Harsh weather can limit ADAS functionality. Heavy rain, thick fog or cold weather can block the camera sensor surfaces, obstructing the system view. Accurate object detection becomes difficult as the software is unable to detect what the object is. The effective LiDAR measurement range decreases. In worst case, the availability of the function is limited if the system shuts down when the most needed.
Even heating & low distortion
There are ways to reduce the impact of poor weather on ADAS system performance. CNB film heaters have been developed to provide clear field of vision for ADAS systems to operate in any weather conditions.
Traditional heating wires cause pixel to pixel distortion on camera view. Image gets blurred due to uneven heating and the software is unable to detect what the object is. On LiDAR systems, metallic wires cause non-uniformity at optical path (wavefront error) and induce LiDAR beam deflection. Wavefront error and thermal gradient in cover lens reduce the LiDAR measurement range accuracy.
CNB film heaters are wire-free, featuring ultra-low haze, low reflection and therefore low distortion. CNB heater has minimal effect on camera image quality (MTF), and they provide uniform heating at LiDAR optical path.
Due to unique material properties, Canatu CNB heaters are extremely flexible. They can be stretched by <200% and thermoformed with 1mm bending radius to create basically any 3D shape, and then integrated by means of either lamination or injection molding for robustness. This makes CNB film heaters ideal for 360 degree sensors and fish-eye camera sensors.
LED headlamp heaters
Today’s modern EVs are very energy-conscious requiring light-weight and low energy solutions. LED headlamps don’t generate heat to keep the lenses clear so rain, snow or mist can obstruct visibility. CNB film heaters can be integrated into LED headlamps to provide heat where it’s needed without heating the ambient surrounding. Direct surface integration and simple, light-weight stack structure bring energy savings compared to air blow heaters where the air gets heated first (=waste heating) before the actual surface is heated.
CNB™ heaters meet automotive industry standards for reliability
As the automotive industry prepares for a future of autonomous cars, reliability in all weather conditions rises in relevance. Mist, condensation and ice can reduce the ADAS system functionality. Reliable and un-intrusive solutions are necessary to prevent safety risks.
Canatu CNB™ heaters have been developed to keep critical sensor surfaces clear from moisture and ice, ensuring any-weather safe autonomous driving. Now an automotive-accredited 3rd party lab has validated that Canatu CNB™ heaters fulfill the high industry standards for reliability.
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See also our award-winning 3D touch solutions for automotive interiors.