| 摘要 |
The invention provides a leaf/casement installation (1) which has an element (3, 20) which is fixed in position in relation to the installation (1) as a whole. A radiation element (42, 51), which emits and/or receives radiation, is fitted on said element (3, 20). The installation (1) also has a leaf/casement (10). In at least one position in relation to the fixed-position element (3, 20), this leaf/casement intersects, at least by way of one of its peripheral regions (14, 15), as seen in a predetermined direction (B), with at least one fraction of the radiation emitted and/or received by the radiation element (42, 51). The leaf/casement (10) is configured such that, at least in the region of intersection with the at least one fraction of said radiation, it is of transparent configuration to the extent that said fraction of the radiation is capable, as seen at least along the predetermined direction (B), of passing through the leaf/casement (10) in the region of intersection. |
