DIRECTABLE LIGHT

摘要

The present invention provides a lighting apparatus having a directable beam and comprising: a lamp (10) for forming a beam (11,24) of visible light; a steering mechanism, e.g. mirror (12) for directing the beam in a desired direction; a light and movement sensor, e.g. a video camera (26) configured to detect movement in an image formed from radiation reflected from the beam; the sensor detects movement of the whole of an object within the beam or, if only part of the object is in the beam, the whole of the part within the beam; and a processor (28) configured to control the steering mechanism to direct the beam in accordance with movement detected in the image of the beam, e.g. movement of an object or shadow within the beam.