| 摘要 |
A reflector element, parabolically deformable under pressure, has a first elastic diaphragm (1), which has a reflective layer and a second transparent diaphragm (9). The two diaphragms are clamped along their periphery in a bearing ring (3) and form a pressure tight chamber (10). The bearing ring is arranged like a wheel by means of two cable arrangements (7, 8) on a central collector axis (4). This is pivotably mounted at its foot in a joint (5), so that the bearing ring (3) can be rolled on a support base (11), which permits azimuth adjustment of the collector. For adjustment of the angle of elevation, the joint (5) is height adjustable. The collector axis (4) at its other end carries a heat absorption unit (2), which is arranged in the area of the focal point of the reflector. In order to reduce reflection losses, the transparent diaphragm (9) runs essentially perpendicular to the direction of the incident light, which is achieved by supporting it against the front cable arrangement (7). The construction permits a light but stable design of large collectors. <IMAGE> |
