Microscope Focus Control Systems is used for an optical pickup head is provided. It generates an electronic signal in response to an optical signal. It comprises a focusing error signal generator, a focus control signal generator and an actuator. The focus control signal generator is electrically connected to the focusing error signal generator. It is used for generating a focus control signal in response to the focusing error signal. A method for controlling movement of an optical pickup head is also provided. It uses an off-axis parabolic concentrator mirror like a large magnifying glass to focus the sun's energy and heat-working fluid such as hydrogen to very high temperatures.