3 Product and Functional Description | 3.2 Main Components
ZEISS
The stage is eucentric, which means that the tilt axis intersects the beam axis. The specimen sur-
face is located in the eucentric point, where the tilt axis meets the beam axis. This guarantees that
the focus and the point of interest are maintained when the specimen is tilted at a certain work-
ing distance.
See also
2
Electron Optical Column | Gemini I [
3.2.6 Dual Joystick
Purpose
The dual joystick is used for stage control and specimen navigation.
Position
The dual joystick is placed on the microscope desk.
2
3
1
4
Fig. 17: Dual joystick
1
T/Z joystick
Controls the Z axis and the stage tilt (T).
2
Break push button
Stops the stage in an emergency.
3
M push buttons
Controls a second Z-axis (M) on super-eucentric stages to set the eucentric point of the
specimen tilt on these stages.
4
X/Y/R joystick
Controls the X- and Y-axes and the stage rotation by turning.
Operating
Principle
All axes are deflection-compensated. When the joystick is moved only slightly, the respective axis
moves slowly. Larger movements of the joystick result in a faster movement of the stage.
The X-, Y-, and Z-axes are magnification-compensated. When working at a low magnification, the
stage moves relatively fast. At higher magnifications the stage movement is slower. The stage is
moving with its maximum speed when viewing the specimen with the CCD (Charge Coupled De-
vice) camera.
The different axes can also be moved simultaneously.
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Instruction Manual ZEISS Crossbeam 350 | en-US | Rev. 3 | 349500-8111-000
