Assembly; Field Iris And Aperture Iris Diaphragm Adjustments - Olympus BX-URA2 Instruction Manual

ASSEMBLY

}This chapter pertains only to the assembly of items which cannot be assembled in the same way as the fluorescence
modules.
@
Fig. 18
@
Fig. 19

FIELD IRIS AND APERTURE IRIS DIAPHRAGM ADJUSTMENTS

²
@
Fig. 20
1
Attaching the U-RCV Conversion Lens
}Be sure to use this conversion lens when the U-MDF3 mirror unit for
darkfield observation is used.
· Insert the conversion lens @ between the reflected illuminator and lamp
housing.
# With ultrawide-field observation, the ambient lighting may be insuffi-
cient with certain types of specimens.
2
Attaching the Light Shield Tube
}The light shield tube must be used with darkfield observation (using DF
mirror unit).
1. Remove the turret.
2. Place the light shied tube in the reflected illuminator so that the position-
ing collar @ on the tube comes on the right.
1
Centering the Field Iris Diaphragm
1. Rotate the turret to engage the mirror unit (BF) in the light path, then open
³
the shutter @.
2. Rotate the revolving nosepiece to engage the 10X objectlve, then place
the specimen on the stage and bring the image into approximate focus.
3. Pull out the field iris diaphragm knob ² on the reflected illuminator to
where the diameter of the diaphragm is at its smallest.
(Fig. 18)
(Fig. 19)
(Fig. 20)
37