摘要 |
<p>A microscope test sample comprises a transparent substrate (1), and a transparent fluorescent medium (2) interfacing with the substrate (1). The medium (2) is of lower refractive index than the transparent substrate (1). The microscope test sample further comprises fluorescent entities (4, 5) within the medium (2) at the substrate-medium interface. When the fluorescent entities (4, 5) are excited to fluoresce, they are f luorescently distinguishable from the medium (2).</p> |