Research on luminous flux measurement technology for the LED luminaires

With regard to measuring the total luminous flux of the LED luminaire precisely, three kinds of luminous flux testing methods are put forward,including integrating sphere, light intensity integrating,illuminance integrating.Furthermore,the measuring principle of the integrating sphere and goniophotometer are analyzed.At last five different types of goniophotometer based on illuminance integrating principle are researched,and the advantages and disadvantages are pointed out.The research results provide direct guidance to select measuring devices for the total luminous flux of the LED luminaire.