Adjusting The Aperture Diaphragm Of The Reflected Light Illumination; Using The Aperture Diaphragm (As) - Olympus BX53M Instructions Manual

3-12 Adjusting the aperture diaphragm of the reflected light illumination

The picture shows BX3M-RLAS-S.
The same operation parts are also provided to
BX3M-URAS-S.
b
38
1

Using the aperture diaphragm (AS)

When BX3M-RLAS-S or BX3M-URAS-S is combined
1
Move the aperture diaphragm knob a of the reflected light illuminator
vertically to adjust the aperture diaphragm.
a
Aperture
diaphragm
(AS)
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
a
(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)
c
When using BX3M-RLA-S
1
Move the aperture diaphragm lever a of the reflected light illuminator
as follows to adjust the aperture diaphragm.
a
Aperture
diaphragm
(AS)
Aperture diaphragm knob position (color bar)
None
Red/
Green
(Bottom
Yellow
end)
Open
Aperture diaphragm lever position
Pressed in
Open to
maximum
Light
White
blue
Close
Pulled out
Close to
minimum