The fiber bundle transmits this returning light to the scan lens intermediate image plane where it emerges and continues along the light detection path.
The lenses used in the imaging head were selected to keep the image size in the scan lens intermediate image plane the same, however since light clipping is not as problematic as with the articulating arm, smaller diameter and shorter focal length lenses were used in the imaging head, allowing it to be more compact.
The image is further magnified by intermediate and projector lenses before the electrons arrive at the detector.
The intermediate curves between the lens center and surface show internal dispersion of the lens material predicted by Eq. (4) for ζ equal to 0.1, 0.2,..., 0.9.
Our model incorporates the precise and real design of each element constituting a TEM, i.e. the field emission (FE) cathode, the extraction optic and acceleration stages of a 300 kV cold field emission gun, the illumination lenses, the objective lens, the intermediate and projection lenses.
The clear aperture is about 2.6 mm in consideration of the spacer, and the heights of all the intermediate images in the lens system are smaller than 1.3 mm.
Notably, the mice used in this study were of a mixed 129Sv and C57BL6 background, and the129Sv strain of mice is known to lack a lens-specific intermediate filament known as the beaded filament [47], although mice lacking the beaded filament do not develop significant opacities and changes in vimentin levels.
Littermates displayed clear lenses or cataractous lenses with mild, intermediate or dense nuclear opacities at the age of one month (Figure 5A).
In the "all-glass" module design, the secondary small-aperture smooth surface lenses arranged in an intermediate composite (glass silicone) panel be inserted between a panel of the primary composite Fresnel lens concentrators and a panel of the solar cells.
Trifocals for computer work typically have a larger-than-normal intermediate zone placed higher in the lens for more comfortable viewing of the computer screen, but they still contain a small zone in the top of the lens for distance viewing.
