Abstract: A pointing device is provided which facilitates the assembly, achieves downsizing and has a long life. Magnetic sensors 21 are placed symmetrically two by two along an X axis and Y axis on a printed circuit board 24. A switch 28 is placed on a silicone resin 23 side surface of the printed circuit board 24 to provide a switch function achieved by depressing a magnet cover 25 toward the magnet 22. The pointing device, a device for outputting coordinate values of an input point, can not only output the coordinate values, but also make a decision by the switch function. A silicone resin 23 is easy to deform caused by an external force, and returns its initial state without the applied external force as soon as the external force is removed.

Abstract: A reflecting mirror support apparatus is characterized in that three reflecting mirror support mechanisms (2) are respectively provided with a supporting structure part (10) fixed on the mirror cell (102), a lever (7) installed on the supporting structure part (10) rotatably around a first axis which extends parallel to the circumferential direction of the reflecting mirror (1), a rotating part (6) installed on the lever (6) rotatably around a second axis constituting an axis of the lever (6) and around third and fourth axes which intersect the second axis and a connecting part to be installed on the rotating part (4,5,6) and to be fixed on the reflecting mirror (1) and that the three reflecting mirror support mechanisms (2) are respectively fixed in such a manner that they will not be displaced in the first axis direction or the second axis direction.