Blind apparatus of the light tracking type.

摘要

The present invention relates to a blind apparatus of the light tracking type and comprises an intensity detector portion (D) for detecting the amount of light illuminance and a light direction detector portion (P) for detecting the direction from which light is coming. By processing the respective signals from these detecting portions, rotation angles of the blades of the blind apparatus are controlled. Therefore, the blades of the blind apparatus can be automatically adjusted so as to always become more perpendicular to the direct rays of the sun or other source of light.