DEVICE FOR THE CONCENTRATION OF SOLAR RADIATION, COMPRISING AN INFLATABLE CONCENTRATOR CUSHION

The invention relates to a device for the concentration of solar radiation in an absorber, comprising an inflatable concentrator cushion, which comprises a cover film element comprising a light-permeable entry window for coupling in solar radiation and a reflector film, which sub-divides the concentrator cushion into at least two hollow spaces, for the concentration of solar radiation in an absorber, comprising a pivoting apparatus, by means of which the concentrator cushion can be pivoted, in particular about its longitudinal axis, and comprising a retaining apparatus secured (mounted) to the pivoting apparatus for retaining the concentrator cushion, which retaining apparatus comprising an upper longitudinal member extending in the longitudinal direction of the concentrator cushion, suspending the absorber, wherein the upper longitudinal member is arranged on a substantially air-tight closed upper passage opening of the concentrator cushion.