Patent ID: 7600901
Filing Date: 2009-10-13
Classification: F21S,F21V,F21W

Abstract:
1. A method for compensating for warpage or other variations in a cross-arm on a pole adapted for the mounting of lighting fixtures at pre-determined aiming angles relative to a target space and a cross-arm by setting angular position of a fixture relative the cross-arm to the predetermined aiming angle comprising: a. determining the pre-determined aiming angle for a fixture relative to its cross-arm; b. assigning a normative reference position for the mounting structure relative its cross-arm; c. assigning a pole reference position defined by a geometry of the pole and having a known relationship to an ideal normative reference position; d. mounting the fixture or part thereof to its cross-arm by the adjustable mounting structure at its actual position; e. comparing the actual position relative to the pole reference position; and f. setting the actual aiming angle of the fixture to its pre-determined aiming angle relative the actual position adjusted by any offset between the normative reference position and the pole reference position.