Patent ID: 8525976

Claim:
METHOD FOR POSITIONING A SURFACE IN RELATION TO A LIGHT SOURCE USING SENSORS, which allows the positioning of a reflective surface ( 2 ) in relation to the light source ( 1 ) so that the reflected light ( 7 ) by the reflective surface ( 2 ) falls on an objective point ( 8 ) of known position, by action of an electromechanical device ( 3 ) with two axes of rotation in azimuth and elevation; it is characterized in that comprises: making that the reflected light ( 7 ) by the reflective surface ( 2 ) falls on the objective point ( 8 ); measuring by a first sensor ( 4 ) located in a fixed position, a first azimuth angle (α p ) and a first elevation angle (α a ) forming the beam of light incident on the first sensor ( 4 ) with respect to a reference direction ( 9 ), and determining a second azimuth angle (γ p ) and a second elevation angle (γ a ), both invariable and known, forming the reflected beam ( 7 ) on the reflective surface ( 2 ) and falling on the objective point ( 8 ), in relation to the reference direction ( 9 ); geometry calculation of a third azimuth angle (δ p ) from the first azimuth angle (α p ) and the second azimuth angle (γ p ) and geometry calculation of a third elevation angle (γ a ) from the first elevation angle (α a ) and second elevation angle (γ a ), corresponding the third azimuth (δ p ) and elevation (δ a ) angles to the angles which form the incident beam ( 6 ) in relation to the axis perpendicular to a second sensor ( 5 ) solidly connected to the reflective surface ( 2 ), in azimuth and elevation respectively; at any position of the reflective surface ( 2 ), measuring by the second sensor ( 5 ), a fourth azimuth angle (δ pe ) and a fourth elevation angle (δ ae ) which forms the reflected beam ( 7 ) with the axis perpendicular to the second sensor; comparing the third azimuth angle (δ p ) with the fourth azimuth angle so that in the case in which there is coincidence between the third azimuth angle (δ p ) and the fourth azimuth angle (δ pe ), maintaining the position in azimuth of the reflective surface ( 2 ), and otherwise varying the position of the reflective surface ( 2 ) to make coincide the third azimuth angle (δ p ) and the fourth azimuth angle (δ pe ); and comparing the third elevation angle (δ a ) with the fourth elevation angle (δ ae ) so that, in the case in which there is coincidence between the third elevation angle (δ a ) and the fourth elevation angle (δ ae ), maintaining the position in elevation of the reflective surface ( 2 ), and otherwise varying the position of the reflective surface ( 2 ) to make coincide the third elevation angle (δ a ) and the fourth elevation angle (δ ae ).