How to use a goniophotometer to test flood light?
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The following procedures need to be carried out in order to successfully test a flood light using a goniophotometer : In accordance with the instructions provided by the manufacturer, calibrate the goniophotometer once it has been properly installed. Place the flood light that has to be evaluated inside of the measuring chamber of the goniophotometer. Adjust the measuring angles on the goniophotometer so that they correspond to the angles outlined in the standard that you are using for the testing of flood lights (such as ANSI C78.81, IESNA LM-79, LM-80, IEC 13032-1, etc.). Take readings using the photometer or lux meter that comes with the goniophotometer to determine the amount of light coming in from each angle. Calculate the photometric characteristics of the flood light by making use of the illuminance values that were measured as well as the calculating procedures that were stated in the standard that you are using. If necessary, the measurement should be carried out at a numbe