Multi-layer reflective structure for manufacturing e.g. parabolic mirror, for e.g. parabolic trough solar concentrator, has support adapted to be deformed so as to form thin glass sheet and formed by composite material

摘要

The structure (10) has a flexible support (3), a reflective layer (2), and a thin glass sheet (1) attached on the support that is adapted to be deformed so as to form the thin glass sheet. The support is formed by a composite material composed of fibers embedded in a resin, where form and/or nature and/or thickness of the fibers are selected according to a value of expansion coefficient of the sheet. Mechanical characteristics of the support are given such that a neutral line of deformation in inflection of the structure is positioned at an interface of the sheet and the support. The fibers are glass fibers and/or carbon fibers and/or fibers of aramide and/or vegetable fibers. An independent claim is also included for a method for manufacturing a solar energy concentration device.