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In recent years, many researchers take great interest on visible light communication (VLC), due to its rich spectrum resources, no electromagnetic interference, good confidentiality, etc. In the visible light communication system, the information is loaded into the LED, then the light is transmitted in the free space, and the detector receives the signal. As the result of the −3dB modulation bandwidth...
The performance of white LED is highly dependent on the current effect and thermal effect. In this work, a measurement equipment is designed and set up to study the relationships among light output, current and junction temperature by controlling the junction temperature. Results revealed that the luminous flux increases nonlinearly with increasing current and decreases as junction temperature increases...
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