Contrasting Techniques
Reflected-light microscopy in materials research
Fast change: The contrasting techniques in reflected light.
In the reflected-light microscope, the condenser function is mainly performed by the objective. All the components required for optical contrasting can therefore be arranged in a very small area in the “infinity space” above the objective. The arrangement of the contrasting components is shown in accompanying illustration.

contrasting components
A: Contrasting element of the illumination side
B: Contrasting element of the observation side
C: Additional space for components for both light paths

The other optical components are:

1 Light source
2 Color-neutral beam splitter
3 Reflected-light objective
4 Sample surface
5 Tube lens

A fast change of techniques is possible because the reflector slider contains permanently integrated contrasting components – like the light filters of the fluorescence microscope.

If the reflector slider features three stop positions, the technique can be quickly changed by adjusting the position of the reflector slider – equipped, for example, for brightfield, darkfield and polarization.

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