| 摘要 |
<p>A readhead for a photometric diagnostic instrument includes a holder configured for receiving reagent sample media therein. The sample media has a plurality of test areas configured to react with, and change color, according to an amount of an analyte in a sample. The holder is sized and shaped for forming an indexed fit with the sample media. One or more light sources are configured to emit light onto the test areas. First and second polarized light filters are respectively disposed between the light sources and the test areas, and between the test areas and one or more light detectors, so that the light detectors receive diffuse, non-specular reflections of the light from the test areas, while substantially preventing the light detectors from receiving specular reflections of the light.</p> |
