UV LED has been widely used in polymer curing, disinfection and many other fields. Especially, UV curing is one of its most important application directions. Accurate measurement of UV LED radiation has become increasingly important. The LED UV irradiance meter is a reliable and easy-to-use measurement device. In this paper, we developed an UV LED integrating sphere radiation source, which was used to calibrate UV irradiance meters. The experimental result was compared with National Institute of Metrology (NIM), which validated the measurement accuracy of our setup.
Photobiology studies the interaction between the human body and light radiation. In particular, UV irradiance sources are increasingly being used to illuminate the human body to quantify the efficacy of drugs and cosmetics. For UV radiation, the spectral irradiance, non-uniformity and instability of the UV source are important characteristics. We propose a method to measure the spectral irradiance of UV sources. Experimental results show that this method can accurately measure the spectral irradiance, non-uniformity and instability of the UV source.
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