| 摘要 |
<p>Systems and methods for material analysis are disclosed in which a material is illuminated at a plurality of discrete wavelengths. Measurements of the intensity of reflected light at such wavelengths are taken, and an analysis of reflection ratios for various wavelengths is performed. The present invention permits non-invasive blood analysis by illumination through the skin and similar analyses of meats and other food materials by non-destructive illumination. Changes in the reflection ratios can be correlated with specific material properties such as the concentration of analytes (e.g., oxygen content, glucose levels, cholesterol or drugs) in a subject's circulatory system or the condition of the food material (e.g., oxidation, contamination, sugar content, ripeness, fermentation, degree of cooking, or other processing stages).</p> |
