| 摘要 |
PROBLEM TO BE SOLVED: To enhance reliability and also to attain miniaturization by reducing the driving part of an optical switch and simplifying the structure. SOLUTION: The optical switch is provided with light path change-over mirrors 42, 43, 82, 83 and 84 or a prism 70 for outputting lights which are inputted to each input channel to an output channel as they are or by exchange and a single digital driving mechanism for digitally driving the mirrors or the prism. |
