Optical switch

An optical switch, comprising:

• input side optical transmission means;
• a plurality of output side optical transmission means;
• reflecting means which moves to be positioned with respect to any one selected from among the output side optical transmission means and reflects an optical signal transmitted from the input side optical transmission means to this output side optical transmission means;
• driving means which moves the reflecting means with respect to the selected output side optical transmission means;
• and
• positioning means which positions the reflecting means with respect to the respective output side optical transmission means,
• wherein a direction of movement of the positioning means is orthogonal to a direction of movement of the driving means,
• wherein the positioning means is configured by a positioning part which moves together with the reflecting means and a position receiving part which is arranged across a movable range of the reflecting means and positions the positioning part,
• wherein the positioning part is provided along a moving direction of the reflecting means and comprises a plurality of groove parts that is elongated in a direction at a right angle with respect to the moving direction of the reflecting means;
• and
• the position receiving part comprises a plurality of first projection parts which is located at least two places on the plural groove parts and positions the reflecting means in the moving direction and a second projection part which is located with separated in a direction at a right angle with the moving direction of the reflecting means with respect to the first projection part and abuts against any of the positioning part.