OS1 laser ranging sensor

The OS1 is a digital spinning lidar sensor from Ouster, a three-dimensional laser ranging sensor that produces dense point clouds of the surrounding space. It is built around the maker's L3 chip and is intended for industrial, automotive, robotics, mapping, security and traffic applications, including mapping and perception on unmanned aircraft.

The sensor emits laser pulses and measures return time to build a 3D view with 128 channels of vertical resolution across a 45 degree vertical field of view. The maker gives a maximum range of 200 m, and 90 m on a target of 10 percent reflectivity, a figure that matters when the surroundings include dark or low-reflectivity surfaces. Output reaches 5.2 million points per second at a frame rate of up to 20 Hz. For a UAV mapping or navigation payload, the channel count and point rate set how fine the detail of wires, branches and building edges can be.

The maker describes a dual return mode that improves mapping in environments with small branches and wires, because the sensor reports more than one echo from a single pulse. Calibrated reflectivity data helps separate real surfaces from dust and obscurants. The sensor is described as light, which suits drone payloads where flight time depends on mass.

For environmental use, the operating temperature range is -40 degrees C to 60 degrees C. Ingress protection is IP68 and IP69K, so the housing is sealed against dust and water jets, and the mean time to failure is stated as at least 250,000 hours. These figures guide the choice of mounting position on an outdoor or vehicle platform.

Data is delivered by the sensor to a host computer, and the maker offers an SDK, the Ouster Studio visualization software and a developer forum for integration. Mounting geometry, connector and power details are given in the product documentation and datasheet from the maker.

Typical applications are 3D mapping, SLAM-based navigation, warehouse and infrastructure surveys, security perimeters, traffic monitoring and autonomous ground and aerial vehicles. The same family includes variants with longer range, wider field of view or hemispherical coverage, so buyers should confirm the exact variant against the datasheet.