Chapter 3 Individual Operations
3.4
Vertical
Stage
Motion
40
3.4
Vertical Stage Motion
3.4.1
Prohibited actions
Avoid the following actions, which can cause equipment malfunctions.
•
Rotating the right and left coarse/fine focus knobs in opposite directions.
•
Rotating the coarse focus knob past the stopper.
3.4.2
Knob rotation direction and stage motion direction
Turn the coarse or fine focus knob to raise or lower
the stage and to adjust image focus.
The coarse focus knob is located on either the right
side or the left side. A fine focus knob is provided
on both sides.
To lower the stage
Turn the knob toward
the front.
To raise the stage
Turn the knob toward
the back.
3.4.3
Number of knob turns and distance of stage travel
No. of knob turns
Distance of stage travel (vertical direction)
Coarse focus knob 1 turn
Approx. 13.8 mm
Fine focus knob
1 turn
Approx. 0.1 mm
Fine focus knob
1 graduation on scale
1
µ
m
The vertical motion range (coarse/fine focus stroke) of the stage is from 2 mm above the focal
point (reference position) to approximately 28 mm below the focal point.
Coarse focus knob
Fine focus knob
