Laserati

Nanopositioning and piezo mechanics specialist PI (Physik Instrumente) offers a variety of piezoelectric, fast steering mirrors designed for scanning and tracking applications, beam control or image stabilization. The latest designs provide multi-axis motion with high bandwidth, sub-microradian resolution and optical deflection ranges up to 100 mrad (6 degrees).
More Information on the S-334 Fast Steering Mirror

Applications
The steering-mirror systems were designed to improve the performance of optics and imaging systems in a variety of applications ranging from lithography to bio-medical instrumentation.

Virtual, Coplanar Pivot-Point Design for Improved Linearity, Dynamics
PI steering mirrors are based on a parallel-kinematics design with a single moving platform and coplanar rotational axes, for jitter-free, multi-axis motion. In addition, the single-pivot-point design provides better linearity and avoids the drawback of polarization rotation, common with galvo scanners, where two single axis systems need to be stacked to provide XY motion.

Compared to stacked, multi-axis systems, the parallel-kinematics design provides faster response and better linearity with equal dynamics for all axes in a smaller package.

Flexure Guided, Driven by Solid-State Actuators for Faster Response
The integrated flexure-guides provide minimum runout and extremely high stiffness in the constrained directions of motion. The platform is driven by four solid state PZT actuators whose superior stiffness provides higher accelerations than voice coil actuators, enabling step response times in the sub-millisecond range.

Closed-Loop, Absolute Position Sensors
Multiple integrated, absolute measuring position sensors feed the platform position information back to a piezo controller for enhanced linearity and stability.

Controllers
A variety of analog and digital controllers in bench-top, OEM-board, and rack-mount designs are