Olympus IX81-ZDC2 Manuel d'instructions - Page 11

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OPERATION

3-1 Operating Precautions

The Class 1 laser beam that is output from the objective is not hazardous (but direct staring for an extended period is still

inhibited), and the laser beam intensity will not increase even in the case of malfunction. However, to prevent an incident,

make sure not to tilt the glass bottom dish so that the reflected laser beam will not be scattered around.

3-2 Focus Drift Compensation Procedure

Fig. 1

Preparation

1. Set the power switches of the IX2-UCB control box and PC to " I " (ON).

2. Set the AF port switching lever @ of the AF sensor unit to the pushed-in

position (IN).

} This operation engages the dichroic mirror (DM) in the light path of the

AF sensor unit, making AF detection possible.

If AF detection is not necessary, setting the lever @ to the OUT position

makes it possible to eliminate the small loss of the observation light.

This is also effective in observation with IR light (785 nm or higher

wavelengths).

Adjusting the Correction Collar

If you use an objective with collection collar, the following adjustment is

necessary.

1. How to perform correction for bottom thickness of the glass-bottom dish:

When the thickness of the bottom of the glass-bottom dish is known,

match the scale reading of the correction collar to the thickness of the

glass bottom.

2. How to find the optimum position based on image resolution and contrast:

· If the thickness of the glass-bottom dish is unknown, the optimum position

for the collection collar can be obtained by judging the image resolution

and contrast. When a satisfactory image is not obtained after focusing,

rotate the correction collar to the left and right, refocus each time and

compare the images at both sides. Then rotate the collar in the direction

yielding a better image, and rotate the collection collar to the left and

right, refocus each time and compare the images. Repeat this cycle until

the position with the optimum image is found.

IX81-ZDC2

(Fig. 1)