Temperature-stable LED-based light source without temperature control

M. Bosiljevac; D. Babić; Zvonimir Sipus

doi:10.1117/12.2211576

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15 March 2016 Temperature-stable LED-based light source without temperature control

M. Bosiljevac, D. Babić, Zvonimir Sipus

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Proceedings Volume 9754, Photonic Instrumentation Engineering III; 975416 (2016) https://doi.org/10.1117/12.2211576
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

Many medical, environmental, and industrial sensing applications could take advantage of uncooled temperature-stable optical sources that are incoherent and un-polarized as such sources do not produce interference fringes, speckle patterns, or intensity variations due to polarization. For this purpose we propose an optical system for stabilization of light-emitting diodes over temperature exhibiting output power variation below 50 ppm/°C which does not employ any kind of TEC elements or even thermometers. This makes it especially suitable for handheld and battery operated instruments.

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M. Bosiljevac, D. Babić, and Zvonimir Sipus "Temperature-stable LED-based light source without temperature control", Proc. SPIE 9754, Photonic Instrumentation Engineering III, 975416 (15 March 2016); https://doi.org/10.1117/12.2211576

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