Abstract
An actuator with two inputs for one output is developed. This actuator is composed of one output and two isolate input. From this the output can be driven without switching two inputs. This actuator is used focusing-mechanism of camera which changing auto-focus and manual-focus. The Actuator with two inputs for one output is proposed by using paradox gear reducer. It becomes it by this actuator so that it will be achieve the same mechanism with any motor. The characteristic of the actuator is confirmed by fundamental driving experimental.
