Olympus BX-RLA2 Manuel d'instructions - Page 11

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1. Table of Contents
2. System Diagram

Field iris diaphragm image

Field of view of eyepiece

6. Open the field iris so that its image is almost the same size as (i.e. sub-

scribes) the field of view.

Using the Field Iris Diaphragm

{In reflected light brightfield observation

The field iris diaphragm adjusts the illuminated area to obtain an image

with high contrast.

According to the objective in use, adjust the FS knob ² of the reflected

light illuminator until the iris image circumscribes the field of view to block

unnecessary light.

{In reflected light darkfield observation

The field iris must be opened by pushing in the FS knob ².

BX-RLA2