subject: flood lights,street light and embedment light [print this page] flood lights,street light and embedment light
A method for quickly, efficiently and accurately aiming a flood light fixtures at a preselected location which involves directing or redirecting the collimated radiative output of a low power laser source at a preselected location. The laser output may be aimed at a mirror on the flood light face and reflected directly back to the preselected location or the laser can be temporarily mounted to the flood light and the laser output directed parallel to the flood light beam axis at said preselected location.
The lighting of sports facilities such as football, baseball, soccer, softball, and other athletic facilities is at present a semi-sophisticated art. Lighting engineers are able, through mathematical computations, to determine the number of flood lights for sale and where the flood lights are to be aimed on the playing surface with a substantial degree of accuracy in order to provide optimum uniform lighting for the various different areas of the playing surface. Until now, aiming of the flood lights has been substantially a trial and error precedure. One method that has been applied in the past has been for the application engineer to determine the angular relationship of the flood light based upon its position with respect to the field and by employing angular markings, generally in 15 steps preset the mounting angle for the various flood lights of the system. This method is very crude and very large tolerances must be accommodated. This method in most instances requires substantial readjustment on a trial and error basis to get the proper foot candle levels at the various areas of the field.street light.
In accordance with the present invention, a flood light for sale is aimed at a preselected location by directing the collimated radiative output of a laser from a flood light, adjustably aiming the flood light to cause the directed laser output to impinge on a target at a preselected location and fixing the flood light in a position to remain aimed at said preselected location. In one form of the invention the laser is temporarily mounted to the flood light and the axis of the collimated radiative output of the laser is aligned parallel to the beam axis of the flood light. In another, and more preferable, embodiment a mirror is mounted to the lens of the flood light perpendicular to the beam axis and the collimated radiative output of the laser is directed from a spot adjacent the preselected location at which the flood light beam is to be aimed and the laser beam then directed from the flood light by reflection from the mirror back to said preselected location. The mirror employed on the flood light is preferably matched to the laser color for optimum reflectance and a target is placed at the predetermined location to enhance the perception of the impingement of the laser output at that predetermined location. For example a gold mirror is preferred for reflecting certain laser beams.embedment light.
