Dark

2022年12月24日 — Dark-field microscopy is ideally used to illuminate unstained samples causing them to appear brightly lit against a dark background. This type ...

Uses. ++. To evaluate a lesion (chancre, mucous patch, condyloma lata, skin rash) for the presence of Treponema pallidum.

Dark-field microscopy describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image.

由 JT Crissey 著作 · 1984 · 被引用 2 次 — A step-by-step method for combining the results of these procedures and the results of physical examination and serologic testing to make the diagnosis of ...

Darkfield is an optical contrast technique for microscopy which makes unstained structures in the cells of biological specimens visible. Cell structures that ...

The entire field of view appears dark when there is no sample on the microscope stage. However, when a sample is placed on the stage it appears bright against a ...

2021年8月16日 — Dark-field microscopy is ideal for specimens with smooth reflective surfaces. Specimens with a different refractive index or refractive index ...

2020年12月17日 — Darkfield microscopy is a technique that takes advantage of oblique illumination to enhance contrast in specimens that are not imaged well ...