Patent ID: 7423609

Claim:
Parabolic reflector ( 1 ) comprising a number of sectors ( 2 ) being connected to each other at a central hub ( 3 ), the parabolic reflector ( 1 ) being collapsible from an extended position ( 9 ), in which the sectors together extend 360° around the hub ( 3 ), to a retracted position ( 8 ), in which the sectors ( 2 ) are brought together into a compact unit, characterised in that each sector ( 2 ) is rigid and is firmly joined to a cylindrical hub sleeve ( 4 ), that the hub sleeves ( 4 ) together form said hub ( 3 ), around which the sectors ( 2 ) are journalled for limited movement around a central axis extending through the center of the hub ( 3 ), that the hub sleeves ( 4 ) are concentrically arranged one radially inside the other with consecutively decreasing radii, and that the hub sleeves ( 4 ) have mutually cooperating guiding surfaces ( 5 , 6 ) that permit axial displacement of the hub so as to enable relative rotation there between.