Patent ID: 6894818
Filing Date: 2005-05-17
Classification: F41G,G02B

Abstract:
1. A beam-steering device comprising: a carriage adapted to rotate about a first axis, said carriage having an inboard region and an outboard aperture; an upper off-axis parabolic reflector adapted to receive or reflect a beam directed generally along said first axis and receive or reflect the beam in a generally radial direction generally orthogonal to the first axis; a right-angle reflector radially offset from said upper reflector and adapted to receive or reflect the beam in a generally radial direction to or from said upper reflector and receive or reflect the beam in a generally axially direction which is radially offset from said first axis; a lower off-axis parabolic reflector adapted to receive or reflect the beam to or from said right angle reflector and to receive or reflect the beam in a radially direction generally through and orthogonal to the first axis, said lower reflector positioned axially adjacent said right angle reflector such that the primary optical axis of the beam intersects an on-axis focus point of said lower reflector; and a mirror and one-axis gimbal assembly positioned 180 degrees radially opposite said lower reflector and adapted to rotate about a second axis being radially offset from and orthogonal to the first axis, said mirror adapted to receive or reflect beams radially reflected from said lower reflector and to receive or reflect beams through said outboard aperture.