DRIVE METHOD OF SUNLIGHT DEVICE WITH 3 DIMENSIONAL MOVEMENT REFLECTIVE MIRROR

摘要

PURPOSE: A method for driving a three dimensional reflective mirror type lighting device is provided to improve lighting efficiency by controlling the angle of a reflective mirror according to the position of the sun. CONSTITUTION: A distance between a collecting lens and a position tracking sensor is controlled(S10). Sunlight is inputted to a position tracking sensor(S20). The position of the sun is calculated from the signal of the position tracking sensor(S30). A first reflective mirror rotates around X, Y, and X axes(S40). A second reflective mirror and a third reflective mirror rotate around X, Y, and X axes to irradiate a shadow area(S50).