Beam steering apparatus comprising an apparatus body and means in the body for generating a beam. First and second rotatable reflectors are provided 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. The apparatus is further provided with a first motor for rotating one of the reflectors and for driving a first input to a gearbox. A second motor is provided for driving a second input to the gearbox, the gearbox having an output for rotating the other reflector. The first and second motors are housed in the body. The gearbox output rotates the second reflector via a drive belt. The rotation of the first reflector induces rotation of the second reflector. The gearbox inputs and output are arranged to compensate for the induced rotation such that rotation of the second reflector by the second motor is unaffected by any rotation of the first reflector.
Inventor(s) WILLSON PETER D WYNNE [GB]
Applicant(s) WYNNE WILLSON GOTTELIER LTD [US]
Classification International F21S8/00; F21V17/02; F21V21/30; (IPC1-7): F21V14/04; Cooperative F21V17/02; F21V21/30; F21V7/0008; F21W2131/406
Priority Number GB19980003108 19980213; WO1999GB00455 19990212
Also published as WO9941544 (A1), EP1075624 (A1), EP1075624 (B1), CA2320985 (A1), AU2534699 (A), CA2320985A1, DE69922185D1
Publication Date Oct 15, 2002
Filing Date Feb 12, 1999