Mørkfeltbilder
Mørkfeltbilder, a term originating from Norwegian, translates to "dark field images" and refers to a technique used in microscopy and imaging to enhance the contrast of transparent specimens. In this method, the illumination source is positioned such that only light scattered by the specimen enters the objective lens. Unscattered light, which would normally illuminate the background brightly, is blocked. This creates a dark background against which the specimen's structures appear luminous and well-defined.
The principle behind mørkfeltbilder is similar to how dust motes become visible in a beam of sunlight;
Mørkfeltbilder can be achieved using specialized condenser rings or apertures in a microscope. These components are