20
CX21
4
Reflection Mirror CH20-MM
(Fig. 25)
}The reflection mirror is designed to be used in microscopic observation in a location where power supply is not available.
It makes it possible to use the natural light in place of the lamp bulb.
Fig. 25
# The microscope should be installed near a window, in a place that
is not exposed to direct sunlight.
The eyepieces should be oriented toward the rear so that the reflec-
tion mirror receives the bright light. Loosen the observation tube
clamping knob and rotate the tube by 180°.
1. Fit the reflection mirror in the window lens of the microscope frame by
aligning the mounting tab.
2. Remove the daylight filter because it renders the image bluish under
natural light.
3. The reflection mirror
1
should be pointed toward the bright area. While
observing the image through eyepieces, adjust the orientation of the
reflection mirror.
}A planar reflection mirror is used normally. However, if the image bright-
ness is uneven or the outside view is visible in the image, use a concave
reflection mirror.
@
Fig. 23
2
Filter Holder CH2-FH
(Fig. 23)
This accessory accommodates a filter with a diameter of 32.5 mm or the
CH2-DS darkfield ring.
1. Remove the daylight filter if it has been attached.
2. Push the filter holder
2
containing the desired filter
1
into the bottom of
the condenser until it clicks into place.
Filter
Application
32.5C
Changes the light of the built-in lamp bulb (which is yellow-
ish) to natural light.
32.5G533
Reduces fatigue or provides specimen with contrast.
32.5LB45,
150, 200
Converts the color of light for color photography (with a day-
light film).
For other filters, contact Olympus.
Filters similar to the above having a diameter of 45 mm are also available
for insertion in the window lens.
Fig. 24
3
Darkfield Ring CH2-DS
(Fig. 24)
1. Insert the darkfield ring in the CH2-FH filter holder in the same way as
inserting a filter.
2. The darkfield ring enables darkfield observation using an objective from
4X to 40X.
CH2-DS
²
@
