| 摘要 |
A thin film mirror, is constructed by providing a suction chamber (2) with edges (4) which lie on a required mirror surface. A tensioning means which is forced into contact with film (8) adjacent to at least one of the edges of the suction chamber such that tension in the film parallel to the edge is increased. A holding means (12) holds the tensioning means (10); locally adjusts holding pressure on the tensioning means (10) and feeds the tensioning means (10) into position after the film (8) has been attached to the suction chamber (2).
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