The Status of Integrating Sphere in China Market
IES LM-79-08 “Electrical and Photometric Measurement of Solid-State Lighting Products” as the exclusive international standard for measuring the total luminous flux, electrical power, luminous intensity distribution and correlated color temperature (CCT), color rendering index (CRI) and other colorimetric parameters of solid-state lighting products (SSL), it highlights the total luminous flux of SSL products should be measured with the integrating sphere system or goniophotometer . So the integrating sphere, as one of the main measuring instruments of SSL products, it can reduce and eliminate the measurement error caused by the difference of light shape, divergence angle and responsivity of different positions on the detector. Its design and manufacturing process is especially important and will directly affect the accuracy of test results. Here we take a look at the current status of the production of integrating sphere technology in China market. The Status of...