Pcled light source and swir spectrometer for noninvasive tissue glucose self-monitoring
AssigneeLumileds LLC
InventorPeter Josef SCHMIDT
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Abstract
A glucose measurement device comprising a light emitting device comprising an SWIR phosphor having emission wavelengths in the range of 1600-2200 nm, the SWIR phosphor comprising a structurally disordered garnet material, a sensitizer ion, and at least one rare earth emitter ion, and a infrared light detector arranged to detect the intensity of short wavelength infrared light emitted by the light emitting device and reflected by a sample. The emission spectra provided by the light emitting device having a high temperature stability at infrared absorption minima and maxima wavelengths of glucose in tissue.
Claims20
A glucose measurement device comprising:
- a light emitting device comprising a SWIR phosphor having emission wavelengths in the range of 1600-2200 nm, the SWIR phosphor comprising a structurally disordered garnet material, a sensitizer ion, and at least one rare earth emitter ion, wherein the at least one rare earth emitter ion comprises Tm(III);
- and
- an infrared light detector arranged to detect the intensity of infrared light emitted by the light emitting device and reflected by a sample.
A glucose measurement device comprising:
- a light emitting device comprising a SWIR phosphor having emission wavelengths in the range of 1600-2200 nm, the SWIR phosphor comprising a structurally disordered garnet material, a sensitizer ion, and at least one rare earth emitter ion, wherein the at least one rare earth emitter ion comprises Ho(III);
- and
- an infrared light detector arranged to detect the intensity of infrared light emitted by the light emitting device and reflected by a sample.
Dependencies are inferred from the claim text.