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Journal article

Temperature dependence of led and its theoretical effect on pulse oximetry.

Abstract:

Ambient temperature is known to affect the emission spectrum of a light-emitting diode (LED). This study has investigated the effect of changes in ambient temperature on the emission spectra of two LED with peak emission wavelengths similar to those used in pulse oximetry. There was a 5.5-nm increase in the peak wavelength for a 660-nm LED, and a 7.8-nm increase in the peak wavelength for a 950-nm LED as temperature increased from 0 to 50 degrees C. Using a simple theoretical model based on t...

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Publication status:
Published

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Publisher copy:
10.1093/bja/67.5.638

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science, Biomedical Research Centre
Role:
Author
Journal:
British journal of anaesthesia
Volume:
67
Issue:
5
Pages:
638-643
Publication date:
1991-11-05
DOI:
EISSN:
1471-6771
ISSN:
0007-0912
URN:
uuid:8c624b37-2a80-457f-8e94-a18c9731237a
Source identifiers:
61534
Local pid:
pubs:61534

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