US Patent 11247616 Sensor airflow apparatus

A sensor assembly includes a housing defining a chamber and including a panel including an aperture; a camera disposed inside the chamber and including a base, a lens spaced from the base, and a tube elongated from the base to the lens; and a tunnel mounted to the base and elongated concentrically with the tube. The lens defines a field of view of the camera through the aperture. The tunnel defines a concentric gap between the tube and the tunnel from the base to the lens.