Patent ID: 6464376
Filing Date: 2002-10-15
Classification: F21V,F21W

Abstract:
Beam steering apparatus comprising:an apparatus body; means in the body for generating a beam; first and second rotatable reflectors, mounted on the body, for deflecting the beam in different directions, the beam being deflectable by the first reflector onto the second reflector so as to deflect the beam substantially in any direction; a first motor for rotating the first reflector and for driving a first input to a gearbox; and a second motor for driving a second input to the gearbox, the gearbox having an output for rotating the second reflector, wherein the first and second motors are housed in the body, the gearbox output rotates the second reflector via a drive belt, rotation of the first reflector induces rotation of the second reflector, and the gearbox inputs and output are arranged to compensate for this induced rotation such that rotation of the second reflector by the second motor is unaffected by any rotation of the first reflector.