| 摘要 |
A mirror support structure includes a mirror holder and a detachably attachable single unit which, when attached to the mirror holder after a mirror has been inserted in the mirror holder, applies bias forces to the mirror. The bias forces are applied so as to press against a front surface of the mirror in the vicinities of the two fixed points and the adjustable point, which tilts the mirror, so that the back surface of the mirror touches the two fixed points and the adjustable point. The single unit includes flexible parts, which apply bias forces to the front surface of the mirror in the vicinities of the two fixed points, and a flexible part which applies a bias force, that is less than the bias forces applied in the vicinities of the two fixed points, to the front surface of the mirror in the vicinity of the adjustable point.
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