Patent ID: 7458700

Claim:
A method of lighting a sports field with a sports lighting system including a plurality of lighting fixtures elevated on a plurality of poles, each fixture having a pre-determined aiming point on the field, comprising: a. identifying a point of view on or near the field at or from which increased playability and/or decreased glare or spill light is desired; b. identifying one or more poles having fixtures that may affect playability or glare and spill from the point of view by identifying poles having fixtures that are generally within a sector emanating from the point of view; c. identifying one or more fixtures of each of said one or more poles that may affect playability or glare and spill for the point of view by identifying aiming points that fall within a sector centered on a line between each said one or more poles identified in step b and the point of view; d. including a component to a fixture identified in step c which shields or diminishes light and/or direct view of light from the fixture from the point of view; so that one or more said fixtures with said component will increase playability and/or decrease glare or spill light relative to the point of view.