Reflector assembly for energy concentrators

A reflector assembly for an energy concentrator comprising a support structure having a plurality of support arms, and a reflective arrangement having an array of concentric annular reflective elements spacedly arranged on the support arms or on elongate mounting strips fixed to each or selected supported arms, each said reflective element having a reflective surface shaped to reflect incident energy waves, and a holding arrangement arranged to hold the reflective elements in an orientation to direct the reflected energy waves thereof in a direction towards a focal zone of the reflective arrangement, said holding arrangement having a set of holding devices for holding each reflective element on the support arms or mounting strips;

• each holding device having a first holding member fixed to a support arm or mounting strip and adapted to engage with a part of an adjacent reflective element, and a second holding member having an engagement face adapted to engage with another part of the adjacent reflective element and adjustably positionable relative to the first holding member so that when secured to said first holding member the engagement face thereof causes said adjacent reflective element to be at said orientation, the first holding member having a curved outer face and the second holding member having a compatible curved inner face arranged to engage with said outer face, and said inner and outer faces having compatible toothed profiles whereby parts of the toothed profiles can inter fit for limiting movement therebetween.