Light signaling device for e.g. helicopter, has cover reflecting light emitted by light units, and comparator comparing light intensity detected by photometric sensor, placed between support and cover, with reference light intensity

摘要

The device has multiple light units (5) e.g. light emitting diodes, mounted on a support (2) and surrounded by a translucent cover (4). The cover reflects the light emitted by the units (5) and is disposed near the units (5). A photometric sensor (6) is positioned between the support and the cover. A comparator compares a light intensity detected by the sensor with a reference light intensity. An independent claim is also included for a light signaling device controlling method.