Methods to precisely generate arbitrary spectra using multi-coloured LED light engines

Aleix Llenas; Josep Carreras

doi:10.1117/12.2309494

28 May 2018 Methods to precisely generate arbitrary spectra using multi-coloured LED light engines

Aleix Llenas, Josep Carreras

Author Affiliations +

Proceedings Volume 10693, Illumination Optics V; 106930M (2018) https://doi.org/10.1117/12.2309494
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

In this work, we explore methods to create arbitrary spectra efficiently with high precision and accuracy using multichannel LED light engines. We propose an optical feedback controller using integrated optical sensors, namely spectrophotometers and colour sensors, for real-time monitoring of the emitted light and for effective spectral corrections. Our results show that the such kind of close-loop systems can be used to obtain relative spectral errors and ▵uv' between target and emitted spectra significantly below threshold values, ▵uv' < 0.002 in all cases.

Citation Download Citation

Aleix Llenas and Josep Carreras "Methods to precisely generate arbitrary spectra using multi-coloured LED light engines", Proc. SPIE 10693, Illumination Optics V, 106930M (28 May 2018); https://doi.org/10.1117/12.2309494

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