SOLAR TRACKING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a solar tracking device capable of suppressing the power consumption required for solar tracking.SOLUTION: A fine movement tracking mechanism moves a light focus member whose optical axis is aligned with an optical axis of sunlight by a coarse movement tracking mechanism moving a support member in an inclined position so that the optical axis of the light focus member coincides with the optical axis of sunlight with higher precision than the coarse movement mechanism by means of an expansion force of a thermal expansion member which receives sunlight to expand. It is thus possible to suppress power consumption required for tracking sunlight more than in a case where a motor is used.SELECTED DRAWING: Figure 1