PURPOSE: To enter the sunshine into rooms continuously by installing a reflecting plate outside a house, reflecting the sunshine into the rooms by the reflecting plate, and rotating the reflecting plate in two axial directions under microcomputer control.

CONSTITUTION: The reflecting plate (mirror) 2 is installed outside the house 3 and the sunshine 1 is guided into rooms of the house 3 through windows AWD. Further, a motor which drives the reflecting plate 2 in two axial directions is provided. This motor is controlled by a microcomputer. This microcomputer is provided with an ROM for sun position calculation and control information on a shift in irradiation position is inputted. The reflecting plate 2 is provided at the north side of the house 3 to enter the sunshine into the rooms. For the purpose, the reflecting plate is controlled by the microcomputer to reflect the sunshine, so the sunshine is entered into the rooms automatically and continuously to make the life pleasant.