Signal-enhancement reflective pulse oximeter with Fresnel lens

Shuang Chao Chung, Ching Cherng Sun

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In this paper, a new reflective pulse oximeter is proposed and demonstrated with implanting a Fresnel lens, which enhances the reflected signal. An optical simulation model incorporated with human skin characteristics is presented to evaluate the capability of the Fresnel lens. In addition, the distance between the light emitting diode and the photodiode is optimized. Compared with the other reflective oximeters, the reflected signal light detected by the photodiode is enhanced to more than 140%.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalOptics Communications
StatePublished - 15 Sep 2016


  • Fresnel lens
  • Oximeter
  • Skin model


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