Reichert Univar, User Manual

Page: 71 / 73

F3
Relay system
The relay system is an apochromatic transport optical path
that can be inserted between objectives and eyepiece. It
generates intermediate pictures of the image field and the
objective pupil. In this path are then made the necessary
interventions in the optical path of the microscope, while
lenses and eyepieces remain unchanged.
In the image plane, different field insertions can and will be
accommodated in the objective pupil phase rings for phase
and anoptral contrast. The optical system allows the
installation of a magnification changer. In general, the relay
system stays on (red dot). If poor lighting necessitates it,
e.g., in darkfield or fluorescence studies, you can switch it
off with the lever.
Relay system magnification changer
A highly-corrected optical system can change the
magnification of the eyepiece inserted in the ocular body in
the range of 1x to 2.5x
Available options:
Stepped magnification changer: 1x, 1.6x, and 2.5x
Zoom system: 1x to 2.5x, stepless
The image quality, focus, and the center of the image are
fully preserved. The zoom system is especially useful for
format-filling photomicrography, for an ideal adaptation to
the specimen size
Slider slot
An opening in which you can insert a scale, a counting grid,
or different aperture is located on the upper left side of the
microscope. Using the relay, these parts are mirrored into
the optical path and are visible with the specimen image in
the eyepiece
Measuring micrometers
The test section is divided into 150 sections. Length
measurements in the specimen plane can be made using
the objective-dependent micrometer value MW (µm).
MW = 100/objective mag.
You observe how many gradations correspond to the length
to be measured in the specimen, and multiply that number
by the micrometer value (1 µm = 0.001mm)
Counting scales
The counting system is divided into 100 fields. Area
measurements in the specimen plane can be carried out
using the objective-dependent micrometer value MW (µm)
of a side of the field.
MW = 1000/objective mag.
For accurate measurements, we recommend finding the
micrometer values with a stage (slide) micrometer
Half-frame panels
With the help of the two half-frame panels, you can cover
each half of the picture with a separate image in a
photograph