| 摘要 |
A rotatable mirror assembly comprises a rotatably mounted support (1); and a mirror (7) mounted to the support for rotation therewith. The mirror (7) is mounted at a position (5) laterally offset from the axis (6) of rotation of the support, the mirror being spaced from the remainder of the support to allow the mirror to distort when it is rotated. The center of the mirror remains flat during this distortion. <IMAGE> |
