Investigation of the impact of electromagnetic fields emitted close to the head by smart glasses

Authors: Philipp Jungk, Matthias Wienke, Christoph Schiefer, Ulrich Hartmann, Volker Harth, Claudia Terschüren, Carsten Alteköster, Daniel Friemert

Year: 2022 May 17

Category: Biomedical Technology

Journal: Biomed Tech (Berl)

DOI: 10.1515/bmt-2021-0301

URL: https://pubmed.ncbi.nlm.nih.gov/35580838/

Abstract

Overview

The study focuses on the electromagnetic fields emitted by smart glasses and their impact on the head's tissues, specifically examining various positions, frequencies, and antenna designs.

Findings

  • Integrated WiFi or Bluetooth modules in smart glasses emit electromagnetic radiation.
  • The study employs simulations to ascertain different effects on human head tissues, characterized mainly by specific absorption rate (SAR).
  • Antenna type shows minimal effect on SAR values across tissues.
  • Frequency impacts are governed by the maximum regulated output powers.
  • Antenna placement has a significant influence on SAR values, with front side positioning deemed optimal.

Conclusion

The findings suggest that careful consideration of antenna placement in smart glasses can mitigate the risks associated with electromagnetic field exposure, potentially enhancing safety for users.

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