This collecting nucleolus was easily visible in phase contrast even without pretreatment due to its large size and particular structure.
32.
As the exact nature of the double refraction varies for different crystal structures, phase contrast aids in the identification of minerals.
33.
In this context, phase contrast imaging is used to enhance the contrast that would normally be possible from conventional radiographic imaging.
34.
It was at a Physical and Medical Congress in Wageningen in 1933 that Zernike first described his phase contrast technique in microscopy.
35.
As the physical properties of this direct light have changed, interference with the diffracted light occurs, resulting in the phase contrast image.
36.
Named after Frits Zernike, the Dutch optical physicist, and the inventor of phase contrast microscopy, they play an important role in beam optics.
37.
The phase contrast transfer function ( CTF ) is a function of limiting apertures and aberrations in the imaging lenses of a microscope.
38.
Most implementations of quantitative phase contrast microscopy allow for images to be created and focused at different focal planes from a single exposure.
39.
The electron micrographs of unstained membranes were recorded such that the only source of contrast was a weak phase contrast induced by defocusing.
40.
Digital holographic microscopy thus makes it possible to visualize and quantify transparent objects and is therefore also referred to as quantitative phase contrast microscopy.
