dark-field

American  

[dahrk-feeld] / ˈdɑrkˌfild /

adjective

Optics.

1. of or relating to the illumination of an object by which it is seen, through a microscope, as bright against a dark background.

---

Etymology

Origin of dark-field

First recorded in 1860–65

Example Sentences

For this video, Kristiansen visualized his own blood cells with a microscopy technique called dark-field illumination—which is why the cells appear goldenish on a black background rather than red on a white background.

From Scientific American

Similarly coloured regions correspond to areas with the same crystallographic orientation/thickness. h, Demonstration of the procedure for obtaining dark-field images of the grown seeds.

From Nature

Similarly coloured regions correspond to areas with the same crystallographic orientation/thickness. h, Demonstration of the procedure for obtaining dark-field images of the grown seeds.

From Nature

Substantial scattering can thus be expected to occur from the nanoantennas, as confirmed by the dark-field optical images shown in .

From Nature

This is a dark-field image, highlighting surface details.

From Science Magazine