OPTICAL SWITCH

摘要

PROBLEM TO BE SOLVED: To provide an optical switch which is capable of exactly switching optical paths without the deflection of a reflection surface and without the occurrence of mispositioning even when the optical paths are switched at a high speed by increasing a switching speed. SOLUTION: The reflection device provided with the input optical path and the output optical path in positions where both intersect comprises a torsion pan 30 which is arranged at an angle of about 45 deg. with the input optical path above the input optical path, a total reflection mirror 32 and a dummy mirror 34 of the same shape and the same weight as the shape and weight of the total reflection mirror 32. The dummy mirror 34 is disposed on the opposite side of the reflection mirror 32 along the axis of the torsion pan 30.