G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 26/08 (2006.01) G02B 5/04 (2006.01)
Patent
CA 2644610
The present invention relates to the field of rotary joints, or similar devices. It pertains, in addition, more specifically to optical rotary joints. The invention consists of a multipathway optical rotary joint, comprising a stationary plane, a moving plane that can move about a reference axis of rotation and a Dove prism, placed between the stationary plane and the moving plane and rotationally mobile around itself about an axis of rotation coaxial with the reference axis of rotation. The assembly is configured so that when the moving plane rotates at a speed .omega., the prism rotates at a speed .omega./2. The optical pathways are arranged so as to pass through the prism. The Dove prism is here modified to comprise a central optical channel by which an optical wave passes through the crystal without undergoing deviation, the axis of the channel being coaxial with the reference axis of rotation. An optical pathway is furthermore arranged in the joint so as to pass through the joint, following an axis substantially coinciding with the reference axis of rotation. It relates notably to the fields of radar systems, drilling systems, robotized craft, for transmitting signals with analogue quality level.
Merlet Thomas
Queguiner Morgan
Marks & Clerk
Thales
LandOfFree
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