Leica DMLS, Инструкция по эксплуатации

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Condensers CL/PH and CLP/PH, UCL/UCLP
If the condenser is not yet complete, the follow-
ing components* may have to be fitted before
the condenser is adapted to the microscope
(Fig. 10). For polarisation the strain-free Pol ver-
sions CLP/PH 0.85 or UCLP 0.85 are necessary.
The full name of the condenser has the suffix S 1.
This signifies that the condenser is intended for
use with specimen slides of ca. 1 mm thickness.
To be more precise (as per DIN/ISO) 1.0 to 1.2 mm.
Achromatic condenser A 0.9 (P)
The condenser can be used on both the DM LS
and on the DM LB up to fov 22.
Objectives with magnification < 10x should be
used with the aperture diaphragm open. This
also applies to objective 1.6x, which can also be
used up to FOV 22 if the slider with the frosted
disc is used.
Objectives with magnifications < 10x are used
with the condenser head folded out, magnifica-
tions of 10x upwards (up to 100x) with the con-
denser head folded in.
If the appropriate sliders with light rings are
used, the condenser can be used for the
following illumination methods:
●
Dark field (DF) up to objective aperture 0.7
●
Phase contrast (PH 1, PH 2, PH 3)
●
Polarisation (P)
Auxiliary condenser lens LS
Unlike the microscope series DM L, the DM LS
and DM LSP microscopes require the auxiliary
lens LS (7.6) to be pushed into the bottom of the
condenser. If this lens is not fitted, it may not be
possible to obtain exact Koehler illumination,
→
p. 30.
Condenser disc *
Condenser discs* (7.3; 9.1) can be inserted into
condensers UCL 0.90/1.25 OIL (7.1) and
UCLP 0.85 for certain illumination techniques
(darkfield = DF, phase contrast = PH, polarisation
contrast = whole- and quarter-wave compen-
sator, and the lens for the 2.5x objective).
To remove and assemble the disc, screw out the
screw (7.2; 9.4) completely. Light rings and Pol
components will normally have been already
inserted at the factory; if you should need to
assemble them yourself: turn back the centering
screws (9.3) with the centering keys (7.5) until
the
light rings, whole- and quarter-wave
compensator* and lens* 2.5x (Fig. 7 and 9) can
be inserted.
Light rings for condenser disc
The somewhat larger hole is for brightfield
observation (= BF), the smaller ones for light
rings or whole-/quarter-wave compensators. If
you use a smaller hole for brightfield, the
maximum illumination aperture cannot be used.
The lettering (e. g. DF, PH 1 . . . ,
λ
) must point
upwards, the whole- and quarter-wave compen-
sators must be inserted with the correct
orientation: the notch must point towards the
centre of the disc! The lettering of the
components should tally with the marking at the
opposite position (outer edge of the disc).
Tighten the centering screws (9.3; 9.5) until the
components are roughly in the center of the
holes.
Lens and diffusing screen for 2.5x objective *
For observation with the 2.5x objective, a special
adaptation lens (9.7) must be inserted into one of
the holes in the condenser disc. This lens is not