Abaxis V9000T, Руководство оператора

Страница: 13 / 23

V9000T Trinocular Microscope
11
Adjusting the Field Diaphragm (Optional)
By limiting the diameter of the light entering the
condenser, the field diaphragm can prevent
other light and strengthen the image contrast.
When the image is just on the edge of the field
of view, the objective can show the best
performance and obtain the clearest image
(Fig. 10).
Iris Diaphragm Koehler Illuminator Condenser
Optional
Adjusting the Aperture Diaphragm
The aperture size is increased or decreased by
rotating the condenser aperture diaphragm lever
③
. When the aperture is closed, the brightness
and resolution are decreased but the contrast
and range of focus are increased. If the
aperture diaphragm is opened, the brightness
and resolution are increased; however, the
contrast and range of focus are diminished. For
optimal viewing conditions set the condenser
aperture diaphragm lever
to match the
magnification of the objective in the optical path
(Fig. 11).
Fig. 10
Fig. 11
①
②
③