OPTICAL LIGHT GUIDE FOR OPTICAL SENSOR

A solution for optical biometric measurements is disclosed. According to an aspect, a sensor device includes a sensor head configured to face a skin of a human body. The sensor head includes: at least one optical emitter configured to emit light towards a direction of the skin; at least one photodet...

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Bibliographic Details
Main Author Korkala, Seppo
Format Patent
LanguageEnglish
Published 13.01.2022
Subjects
BLASTING
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HANDLING RECORD CARRIERS
HEATING
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
LIGHTING
MECHANICAL ENGINEERING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SURGERY
WEAPONS
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Summary:A solution for optical biometric measurements is disclosed. According to an aspect, a sensor device includes a sensor head configured to face a skin of a human body. The sensor head includes: at least one optical emitter configured to emit light towards a direction of the skin; at least one photodetector configured to sense the emitted light from the direction of the skin; and an array of parallel light guide elements arranged to form a plurality of parallel light paths directing light from the at least optical emitter to the at least one photodetector. Each light guide element includes, between a first end and a second end of the light guide element, an optically transparent core and an optical barrier surrounding the core. The core together with the optical barrier focuses light along the core between the ends.
Bibliography:Application Number: US202117353873