An infrared-based device for non-invasive monitoring of eyelid movement during sleep

• Authors: Piotr Wojewnik , Jakub Żmigrodzki
• Languages of publication: EN

Abstracts

EN

The increased movement of eyes and eyelids is characteristic of the rapid eye movement (REM)
sleep stage, making it an important indicator in sleep monitoring. A device was designed
to detect this activity in a non-invasive way by means of measuring infrared light intensity
reflected off the eyelid. The system converts the light intensity into current through
a photodetector, performs analog signal processing and analog to digital conversion (ADC).
The data is transmitted wirelessly to a computer, where the results can be displayed, stored
and analyzed with a dedicated software, which also provides control over the device.
The hardware is embedded in a mask, which is put over the patient's eyes. User safety in terms
of mechanical, electrical and optical dangers has been ensured. The device was tested
on a napping subject.

Keywords

EN

sleep; eye; movement detection; infrared; rapid eye movement

• Publisher: Versita
• Journal: Polish Journal of Medical Physics And Engineering
• Year: 2013
• Volume: 19
• Issue: 2
• Pages: 85-91

Dates

online

07 - 03 - 2014

Contributors

author

Piotr Wojewnik

• Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Św. A. Boboli 8, 02-525 Warsaw, Poland

author

Jakub Żmigrodzki

• Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Św. A. Boboli 8, 02-525 Warsaw, Poland

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Identifiers

DOI

10.2478/pjmpe-2013-0004