HOMOGENIZING LIGHT SOURCES IN PHOTOPLETHYSMOGRAPHY

An embodiment of a light homogenizing apparatus having one or more emitters (110, 120) incident on a light mixing element. The emitters including at least one laser light source. The light mixing element comprising a diffuser (130) followed by an internally reflective light guide (160). This apparat...

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Bibliographische Detailangaben
1. Verfasser:	POLOGE, Jonas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SURGERY TESTING
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Beschreibung
Zusammenfassung:	An embodiment of a light homogenizing apparatus having one or more emitters (110, 120) incident on a light mixing element. The emitters including at least one laser light source. The light mixing element comprising a diffuser (130) followed by an internally reflective light guide (160). This apparatus substantially homogenizes light from all emitters (110, 120) before light exits the internally reflective light guide (160) where it could then be incident on living tissue for use in photoplethysmographic measurement. Other embodiments are described and shown.