Leica DMLB Bedienungsanleitung Seite 46

Operation
of oblique illumination, polarization
Oblique illumination*
To obtain a relief-like contrast; push DF slide
(CL/PH and CLP/PH condenser; 7.7) in part way
or rotate condenser disc (18.15) slightly out of
the DF position (open aperture diaphragm).
Fig. 32 Accessories for contrast techniques*
1 Filter holder, → Fig. 5b and 33.4, 2 Transmitted light polarizer
IC/P, → (34.9 and 6.2), 3 Polarizer, Ø 32 mm, → (33.5a/b),
4 Compensator Ø 32 mm, in the example λ compensator, for
mounting in filter holder (33.6a) or in polarizer IC/P (34.4),
5 Light filter Ø 32 mm, for filter holder (33.1), and for incident
light universal illuminator, 6 Analyser, → (33.1), 7 Com-
pensator for tube slit → (33.8), in the example λ compensator,
8 IC prism, for tube slit (33.8, 34.6), in the example for
objectives with pupil position D, → p. 50 and 28, 9 Light ring
slide for CL/PH and CLP/PH condensers, → p. 42 – 44
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3
6
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5
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Assembly of polarizers*
Push the analyser (32.6) into the microscope
stand (33.1). The engraving λ must be on the
underneath. When incident light illumination is
switched on, the analyser must be pushed into
the slot of the illuminator (on the left side). The
rotatable analyser* (not illustrated) is turned to
the zero position.
There is also an optional intermediate tube Pol*
(Pol module A/BL) with switchable analyser and
Bertrand lens (not illustrated).
Fig. 33 Polarization contrast*, transmitted light
1 Analyser, → (32.6), 2 Clamp screw for stage rotation,
3 Aperture diaphragm, 4 Filter holder, → Fig. 32.1, 5a, b
Polarizer, Ø 32 mm, 6a, b λ- or λ/4 compensator, Ø 32 mm,
7a, b, c Switch lever for transmitted light filter magazine, →
Fig. 4, 8 Mount for IC prisms and compensators (with dust
protection flap)
a
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2
3
5b
4 5a 6
6b
7b
b
8
7c
7a