| 摘要 |
A solar energy collection apparatus comprises an optical array layer 2 and a collection layer 3, where the optical array layer gathers incoming light and focuses it substantially on the plane of the collection layer. At least one of the layers moves (4, fig.4) predominantly parallel to the plane of the other layer and/or a third redirecting layer 5 is provided that moves predominantly parallel to the planes of the optical array layer and the collection layer. When a third layer is provided, it may comprise at least one flexible optically engineered transparent film larger than the area of the collection layer with different portions of the film being arranged to be exposed to different angles of solar radiation at different times so as to redirect or focus different angles of incident light. Preferably, the optical array comprises inflated lens elements. A method of laterally displacing, in one or two axes, the relative positioning of an array or layer is also disclosed. In a further aspect, a lighting or display apparatus comprising a light emitting array layer and an optical array layer of divergent optical elements is presented. In use, changes in the lateral alignment enable solar tracking. |
