抄録
This paper deals with a new concept for constructing an optical control system with the minimum influence on operation environments and outlines the current status of the development of an optical actuator as an interface required to construct the optical control system. It describes that an optical actuator with the use of PLZT ceramics was found to be promising as a solid-state light-to-mechanic interface on the basis of the experimental results on step and on/off responses. To use the optical actuator practically, it is necessary to improve the response speed. The paper shows the possible way for the improvement.