Opto Sigma

• Rotate about a point in space without obscuring the beam
• One or two axes of rotation about the same point
• Compact square shape
• Three sizes compatible with linear and rotation stages
• Inch and metric mounting holes
• Lockable

Goniometers are used to rotate an object or sample about a point in space. The center of rotation is located over the center of the table and is not obscured by the stage itself. In this way it is possible to have a clear and unimpeded access to the point of rotation. Goniometers are offered with different centers of rotation and can be stacked so that two orthogonal axes rotate about the same coincident point.

These goniometers are square in shape making them compact and convenient to use either alone or in conjunction with other stages. The mechanism uses a leadscrew driven, precision dovetail slide. A Vernier scale is marked on the edge of the goniometers to indicate the angle from horizontal. The drive may be controlled by hand or by means of an Allen key.

• New manufacturing process allows extended contact bearing ways to be machined into the body of the stage, making the goniometers simpler, smaller and stronger.
• Centering accuracy is 10x better than typical dovetail goniometers.
• New locking mechanism offers superior stability.
• Many sizes and rotation heights available.
• Precision centering pin included for aligning two axis stacks.

Following in the footsteps of our extended contact linear stages, this unique family of stages greatly surpasses the performance of most, apparently similar, stages. These stages are also available in other configurations including worm drive actuators, motorized configurations and vacuum compatible configurations.