Integrating Sphere | Goniophotometer | Surge Generator | ESD Simulator - LISUN

CIE 121 is a standard that was released by the International Commission on Illumination (CIE). This standard outlines the procedure that should be used for testing the photometric performance of landscape lighting by utilizing a goniophotometer. The standard is used extensively within the lighting industry for the purpose of evaluating the efficacy of landscape lighting fixtures with regard to the distribution, intensity, and homogeneity of the light they produce. A goniophotometer is a device that is used to measure the light distribution of a light source by measuring the intensity of the light emitted at different angles. This is accomplished by measuring the light with the use of a device called a goniophotometer. In the instance of CIE 121 , the measurements are collected at various angles along the vertical and horizontal axes, and the findings are used to compute the average and maximum intensity of the light as well as the uniformity of the light distribution. Additionally,