MEMS and Sensors

4D lidar sensor with camera resolution introduced

03 February 2022
The Aeries II 4D lidar sensor features camera-level image resolution at up to 500 meters in various weather conditions. Source: Aeva

Aeva has introduced its latest automotive grade 4D lidar sensor with what it claims is the first lidar-on-chip module design.

The Aeries II lidar detects the fourth dimension of instantaneous velocity for each point in addition to 3D position. The sensor includes camera-level image resolution with up to 20 times the resolution of standard sensors. This allows for detection of objects up to 500 meters away.

The camera-level resolution allows the sensor to deliver real-time camera images with up to 1,000 lines per frame with no motion blur, Aeva said.

The instant velocity detection delivers four million raw points per second, a field of view of 120° by 30°. This technology allows vehicles and industrial machines to operate across a broad set of conditions such as:

  • Elimination of retroflector blooming and ghosting from reflective objects such as street signs and roadway markings.
  • Greater ability to see through weather conditions such as dust, fog, rain and snow.
  • A clear perception when operating near other lidar-equipped vehicles.
  • No interference from the sun when it is in the field of view of the sensor such as during sunrise or sunset.

The lidar-on-chip technology eliminates all fiber optics and uses key lidar elements onto silicon photonics in a single compact module for scalable production. Also included are the key components such as transmitters, receivers and optics onto the photonics chip.

Because it has automotive grade ratings for ingress, impact, thermal and shock, and vibration, the lidar can be used for a variety of road and environmental conditions.

To contact the author of this article, email PBrown@globalspec.com


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