Olympus BHTU Manual de instrucciones - Página 16
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F.
Use of Immersion Objectives
1) Focus the specimen with a low power objective.
2) Put a drop of immersion oil on the specimen slide and the front lens of the immersion
objective.
3) Rotate the revolving nosepiece to bring the immersion objective into the light path, and
focus with the fine adjustment knobs.
NOTE:
ill
For immersion condensers such as an achromatic-aplanatic condenser or Abbe
condenser, remove the specimen from the mechanical stage and place a drop of
immersion oil on the front lens of the condenser. Then, place the specimen on
the stage and slowly raise the condenser until firm contact with the underside of
the specimen slide is made.
®
Care should be taken to prevent oil bubbles from forming in the oil film between
condenser and specimen slide. If any bubbles appear, re-apply immersion oil,
for these bubbles greatly deteriorate the lens performance.
®
After use. carefully wipe off the immersion oil deposited on the lens surfaces
with gauze moistened with xylene. Never leave oil on the lens surfaces after use
as oil remnants will seriously impair the perforrrance of the lens system.
,
G.
Photomicrography
The Olympus Photomicrographic Equipment Model PM-lOAO is uniquely qualified to be
used with the BHTU microscope for routine and advanced photomicrography. A separate,
detailed instruction manual is available for the PM-lOAD camera system.
For quick reference, however, you may want to refer to the following pointers when using
the PM-lOAD.
1.
Photographic Eyepiece
Use NFK photo eyepieces for photomicro-
graphy.
Insert the eyepiece
CD
into the eyepiece tube
of the photo tube. (Fig. 20)
Fig. 20
2. Mounting the Photographic Unit
Slip the body of the photographic unit over the
photo tube. Align the dots on photo tube and
the PM- lOAD body and clamp the camera unit
to the photo tube. (Fig. 211
3. Setting the Light Path Selector
Refer to section C.3. on page 12.
15