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Fast Objective Focusing Devices from PI
Fast objective focusing devices.
Auburn, MA — PI (Physik Instrumente) LP offers a large variety of piezo-driven precision positioners for high resolution microscope applications. Piezo-driven fast nanofocus devices not only provide nanometer precise focus control, but they are also used in 3-D imaging and Z-stack image acquisition because of their rapid, millisecond-range settling speed. Several devices are available to match different objective sizes and weights. Travel ranges from 50µm to 2mm are available.

Instead of moving the objective lens, the sample can also be positioned. The PInano® stage family consists of more than 10 models of XY, XYZ and Z positioners with a variety of travel ranges, apertures (for slides, well plates and petri dishes), and feedback sensors to suit any need from focusing to high speed 3-dimensional tracking.

Several stages with long travel ranges to 100mm and more, based on ultrasonic-ceramic piezo linear motors, are available for "coarse" positioning with resolution in the 100 nanometer range. Due to their self-locking properties at rest, they reportedly provide better long-term stability than conventional motor/lead-screw stages. The ultrasonic motors also provide very high speed to 100mm/sec and more.

High-speed piezo tip/tilt and beam steering devices scan laser beams in two coplanar axes avoiding polarization rotation errors typically induced by stacked single galvo scanners. A variety of single and multi-axis piezo controllers for laboratory use and OEMs are offered. The controllers are compatible with leading imaging software platforms such as Metamorph® and µManager. LabView® and MATLAB® drivers are also available.

Contact: PI (Physik Instrumente) L.P., 16 Albert St., Auburn, MA 01501 508-832-3456 fax: 508-832-0506 E-mail: Web:

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