Robotics
3D LiDAR
A 3D LiDAR is a sensor that measures the distance to surrounding objects by emitting laser pulses and timing their return. It produces a three-dimensional point cloud that a robot uses to map its surroundings and detect obstacles, even in the dark.
Updated on 12 October 2026 · Libella Robotics · Also known as: LiDAR, laser rangefinding, robot 3D lidar
Unlike a camera, a LiDAR does not depend on ambient light: it works just as well in an overlit exhibition hall as in a party venue plunged into darkness. This is a decisive advantage at events, where lighting conditions are rarely ideal and change from one hour to the next.
On a humanoid, the LiDAR feeds both navigation and safety: it lets the robot perceive a visitor approaching from the side, outside the field of view of the front camera. It is generally complemented by a depth camera, which provides fine perception at short range.
Key facts
| Principle | Time of flight of laser pulses |
|---|---|
| Output | 3D point cloud |
| Advantage at events | Independent of ambient light |