28 April 2008 Multicolor LED sensor
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We present a compact and cheap sensor device based on the combination of a standard RGB-LED with a luminescence material. The multicolor LED acts as the exciting light source, the luminescence light detector and simultaneously as an optical filter. As luminescence material various phosphor materials or crystals can be used, depending on the physical property to be sensed. Possible applications will be discussed.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Volker Lange, Felipe Ribeiro, Walter Tews, Dietrich Kühlke, "Multicolor LED sensor", Proc. SPIE 7003, Optical Sensors 2008, 70030M (28 April 2008); doi: 10.1117/12.780497; https://doi.org/10.1117/12.780497

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