| 摘要 |
<p>An optical blood analyte monitor (2) comprises a near infra-red light source and a complementary detection (6) means; a component analyser (12) having access to a chemometric model linking optical spectral features to a level of blood analyte of interest and configured to apply the model to signals received from the detection (6) means and a tilting filter arrangement (8) having a plurality of optical interference filters (20a..e;56a..d), each filter being tiltable to vary a wavelength of incident light from the source transmitted there through. The light source comprises a plurality of light emitters (4a..e) each being arranged to emit light along a different associated light-path (16a..e) in which is located an associated different one of the plurality of the interference filters (20a..e) and towards a same analysing region (18) at which a tissue volume (finger for example) containing a blood sample to be analysed is located in use.</p> |
