Calibration and Comparison Analysis of the Goniophotometer
WANG Jianping
QIAO Bo
HUO Lei
VENKAT
DUAN Yanlong
Abstract：The goniophotometer is used to measure the luminous intensity distribution of light sources and luminaires,the spatial direction of angle and accuracy of luminous intensity in test direction are two important indicators.In this paper, we studied the calibration method of goniophotometer in spatial azimuth angle and luminous intensity distribution, and the calibration method of spatial coordinate system and angle is put forward.Also, we analyse the applicability of the illuminance calibration method based on the detector which to replace the luminous intensity standard lamp method, and discussed the problems based on the total luminous flux calibration method.Finally, through several laboratory tests in different country, we found the spatial luminous intensity distributions and total luminous flux, which are calibrated using the above-mentioned spatial angle and luminous intensity standard lamp can achieve consistent results.
Keywords：goniophotometerluminous intensity calibrationspatial luminous intensityinternational comparison
Publication Date：2017-03-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 32-36 )