26.5
50
0.80
29
BXFM
1
Using the aperture diaphragm (AS)
3-11 Adjusting the aperture diaphragm of the reflected light illumination
b
c
When BX3M-RLAS-S or BX3M-URAS-S is combined
Move the aperture diaphragm knob a of the reflected light illuminator
vertically to adjust the aperture diaphragm.
Aperture diaphragm knob position (color bar)
None
(Bottom
end)
Red/
Yellow
Green
Light
blue
White
Aperture
diaphragm
(AS)
Open
Close
1
Scale of aperture diaphragm knob
The color (color bar) of the scale b corresponds to the band color
c of the objective. Aligning the aperture diaphragm knob a position
(color bar) with the band color of the objective engaged in the light path
enables to set the aperture diaphragm appropriately. (Not available for
1.25X and 2.5X objectives)
The picture shows BX3M-RLAS-S.
The same operation parts are also provided to
BX3M-URAS-S.
When using BX3M-RLA-S
Move the aperture diaphragm lever a of the reflected light illuminator
as follows to adjust the aperture diaphragm.
Aperture diaphragm lever position
Pressed in
Pulled out
Aperture
diaphragm
(AS)
Open to
maximum
Close to
minimum
1
a
a
a
Summary of Contents for BXFM
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Page 19: ...13 BXFM MEMO ...
