Olympus U-UCD8A Gebruiksaanwijzing - Pagina 38

Blader online of download pdf Gebruiksaanwijzing voor {categorie_naam} Olympus U-UCD8A. Olympus U-UCD8A 40 pagina's. Motorized universal condenser

6-4 Centering the Condenser

Field iris diaphragm image

Eyepiece field of view

Fig. 13

Also refer to the instruction manual for the microscope in use.

Center the condenser in accordance with the following proce-

dure.

1. Select the BF (brightfield) observation light path (with no opti-

cal element engaged).

2. Engage the top lens by motorized operation into the light path.

3. Open the aperture iris diaphragm by motorized operation.

4. Fully open the field iris diaphragm of the microscope.

5. Place the specimen on the stage, engage the 10X objective in

the light path, and bring the specimen into focus.

6. Reduce the microscope's field iris diaphragm opening until

the diaphragm image can be seen.

7. Looking through the eyepiece, raise the condenser almost al

the way up to bring the iris diaphragm image into focus.

8. Gradually opening the field iris diaphragm, bring the reduced

image into the center of the eyepiece field of view, by adjust-

ing the 2 condenser centering screws of the microscope us-

ing 2 Allen screwdrivers (one provided with the microscope

and the other with condenser). (The reduced polygonal image

of the diaphragm should become inscribed in the circle which

indicates the field of view.)

9. After the centering is completed, continue to open the field iris

diaphragm slightly until its image circumscribes the field of

view.

(Fig. 13)