Johannes Bruinsma;Jeroen Poeze;Ferdyan Lesmana;Massi Joe E. Kiani;Marcelo Lamego;Sean Merritt;Hung Vo;Cristiano Dalvi
发明人:
Johannes Bruinsma,Marcelo Lamego,Sean Merritt,Cristiano Dalvi,Hung Vo,Jeroen Poeze,Ferdyan Lesmana,Massi Joe E. Kiani
申请号：
US12534825
公开号：
US08515509B2
申请日:
2009.08.03
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present disclosure relates to an emitter that is suitable for a noninvasive blood constituent sensor. The emitter is configured as a point optical source that comprises a plurality of LEDs that emit a sequence of pulses of optical radiation across a spectrum of wavelengths. In some embodiments, the plurality of sets of optical sources may each comprise at least one top-emitting LED and at least one super luminescent LED. In some embodiments, the emitter comprises optical sources that transmit optical radiation in the infrared or near-infrared wavelengths suitable for detecting glucose. In order to achieve the desired SNR for detecting analytes like glucose, the emitter may be driven using a progression from low power to higher power. In addition, the emitter may have its duty cycle modified to achieve a desired SNR.
