Optika Italy B-380 Serie Manuel D'utilisation page 8

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  • FRANÇAIS, page 44
Condenser
The condenser, placed below the stage, is equipped with the following features:
APERTURE DIAPHRAGM
ADJUSTMENT RING (4)
Raise or lower the condenser through the knob (5) to obtain a clear and uniform illumination of the sample.
To center the condenser: completely close the iris diaphragm (4). Using the condenser centering screws (2),
move the diaphragm in the center of the field of view. Then gradually expand the diaphragm until it is tangent to
the edges of the field of view. If necessary, you can perform an additional adjustment.
The condenser is centered when the edges of iris diaphragm are tangent to the field of view.
In the bottom part of the condenser there is a polarizer filter, which can be rotated through 360°, with a reference
notch for a precise angle measurement.
Page 8
ROTATING POLARIZER WITH
ANGULAR SCALE (9)

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B-383pol

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