Olympus BHT Руководство по эксплуатации - Страница 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 o f the immersion
objective.
3) Turn the revolving nosepiece t o bring the immersion objective into the light path, and focus
with the fine adjustment knobs.
NOTE:
@
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 t o prevent oil bubbles from forming in the oil
film
between
condenser and specimen slide. If any, re-apply immersion oil, for these bubbles
greatly deteriorate the lens performance.
@ A f t e r use carefully wipe off the immersion oil deposited on the lens surfaces
with gauze moistened with xylene. Never leave oil on the lens surfacesafter use
as oil remnants will seriously impair the performance of the lens system.
G.
Photomicrography
The
Olympus
Photomicrographic
Equipment
Model
PM-IOAD
is
uniquely
qualified
t o
be
used
with
the
BHT
microscope
for
routine
and
advanced
photomicrography.
A
separate,
detailed
instruction
manual
is
available
for
the
PM-TOAD
camera
system.
For
quick
reference,
however, you
may
want
to
refer
to
the
following
pointers
when
using
the
PM-IOAD.
1. Photographic Eyepiece
Use NF K photo eyepieces for photomicro-
graphy.
Insert the eyepiece into the eyepiece tube o f
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-1
OAD
body
and
clamp
the
camera
unit
t o
the
photo
tube.
(Fig.
21)
3.
Setting the Light Path Selector
Refer t o section C.3. on page 11.
Fig.
21