本文件提供了测量和报告泛光灯和任何横截面上总视场角大于或等于10度的类似灯具光学性能的一致性方法。该方法适用于使用多种光源的灯具，包括钨丝、卤钨灯和高强度放电（HID）灯。

This document provides a method for uniformity in measuring and reporting of the optical performance of floodlights and similar luminaires having a total field angle greater than or equal to 10 degrees in any cross section. The method applies to luminaires that utilize a variety of light sources, including tungsten filament, tungsten-halogen, and high intensity discharge (HID) lamps.