LISUN goniophotometer can be used for CIE 121 test

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Yes, LISUN is a manufacturer of test and measurement equipment for the lighting industry, and their goniophotometer can be used to perform the CIE 121 test. The CIE 121 test is a standard that was developed by the International Commission on Illumination (CIE) for measuring and reporting the angular distribution of luminous intensity of a light source. LISUN's goniophotometer can be used to perform this test. Both the CIE 121 test and the IESNA LM-63 test entail measuring the light output of a lighting fixture from a variety of angles; however, the CIE 121 test and the IESNA LM-63 test vary in the circumstances under which the measurements are taken as well as the criteria for reporting the results.

A goniophotometer, such as the one that is manufactured by LISUN, is outfitted with a rotating stage that is able to hold the light source that is being evaluated as well as a detector that is able to measure the amount of light output at various angles. A polar coordinate system may be used in order to measure the luminous intensity distribution of the light source using this apparatus. After the data from the measurements have been processed, a polar diagram, which is a graphical depiction of the angular distribution of luminous intensity, may be generated using the data.

It is essential to be aware that not all goniophotometers can be used for the CIE 121 test. This is because it is contingent on the measuring range, precision, and detector of the apparatus being employed.

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