| 摘要 |
The present invention relates to a device for adjusting the curvature of a mirror by applying a bending force to or releasing the same from both ends of a mirror. According to the present invention, the device for adjusting the curvature of a mirror comprises: a base block; a pair of rotating blocks which are connected to the base block by one or more elastic bodies, respectively, and rotate or elastically return to the connection portion of the base block and the elastic bodies through application or release of an external force; a pair or support blocks which are provided at the pair of rotating blocks, respectively, to support both ends of a mirror and apply a bending force to the both ends of the mirror by rotation of the pair of rotating blocks; and an operation portion for rotating the pair of rotating blocks. The elastic bodies connect the rotating blocks to the base block in such a way such that the supporting points of the support blocks with respect to the mirror can move in the opposite direction to the moving direction of the central point of the mirror by a the change in curvature if the rotating blocks rotate. According to the present invention, the elastic bodies connecting the rotating blocks comprising support blocks to the base block are provided in such a way that the supporting points of the support blocks with respect to the mirror can move in the opposite direction to the moving direction of the central point of the mirror by the change in curvature when the curvature of the mirror is adjusted. Therefore, the movement of the central point of a mirror by the change in curvature is canceled by the movement of the supporting points placed at both ends of a mirror even if the curvature of a mirror is adjusted, and thus the absolute displacement of the central point of a mirror can be minimized, that is, the location of the central point of a mirror can be fixed when adjusting the curvature of a mirror is adjusted. In addition, since the operation portion for rotating the pair of rotating blocks to adjust the curvature of a mirror comprises a pair of transmission portions and a transfer member to enable implementation by a single operator, the adjustment of the curvature of a mirror can be conveniently progressed while controlling the input by to a single operator, and thus the adjustment of a mirror can be easily and conveniently be performed. Furthermore, the transfer force of the transfer member by the operator is applied to a pair of transmission blocks through a pair of elastic members, and thus the adjustment of the rotation angle of the rotating blocks and the adjustment of the curvature of a mirror achieved thereby can be progressed very precisely compared to the displacement of the transfer member. |
