NAVIGATION LIGHT SYSTEM FOR AN UNMANNED AERIAL VEHICLE, UNMANNED AERIAL VEHICLE, AND METHOD OF OPERATING A NAVIGATION LIGHT SYSTEM OF AN UNMANNED AERIAL VEHICLE

摘要

A navigation light system (200) for an unmanned aerial vehicle (100), such as a multicopter type unmanned aerial vehicle, includes: a plurality of light emission units (20), wherein each of the plurality of light emission units (20) has a unit-specific light emission direction (24) and is configured to provide a light output (30) around the unit-specific light emission direction (24) and wherein each of the plurality of light emission units (20) includes a multi-color light source (22) capable of emitting red light, green light, and white light; wherein the plurality of light emission units (20) are arranged to jointly provide a navigation light pattern (80) around the unmanned aerial vehicle (100) and wherein the light outputs (30) of adjacent light emission units (20) have an overlap (40); and wherein the navigation light system (200) is configured to operate each of the plurality of light emission units (20) depending on a relation between a momentary flight direction (120) of the unmanned aerial vehicle (100) and the respective unit-specific light emission direction (24), with the navigation light pattern (80) around the unmanned aerial vehicle (100) providing a red sector (82), a green sector (84), and a white sector (86) in accordance with the momentary flight direction (120) of the unmanned aerial vehicle (100) and with the overlap (40) of the light outputs of adjacent light emission units at a border between the red sector (82) and the green sector (84) providing a white flight direction indicator light output (88).