PIFOC® Long Travel Piezo Microscope Lens Positioner from Physik Instrumente

The PIFOC features an objective scanning system for microscopy. It is optimized for large travel ranges and optimized for fast step-and-settle with step sizes to 3 µm. It has a compact design and QuickLock thread adapters for convenient integration in all standard micro-scopes. It is ideally suited for 2-photon microscopy and all applications where a large travel range is required. It is possible to set and optimize all control parameters via software. Trace memory helps display the path-time diagram on the host PC. It enables implemented macro functionality for carrying out measurement tasks, even without constant connection to the host PC.

The PIFOC features a high-resolution optical linear encoder for direct metrology with sub-nanometer resolution for accurate and stable position control.

Digital servos enable adaptation of all control parameters on the fly, by software. Control is possible via USB and RS-232.

Key Features

The key features of the PIFOC are:

  • Complete system with digital controller, software and M32 threaded QuickLock insert
  • 2000 µm travel range
  • Objective positioning with nm resolution
  • Highly dynamic step-and-settle for
  • Z stacks
  • Further thread adapters as optional accessory
  • Extremely robust versions with capacitive sensors


Applications of the PIFOC include:

  • Confocal microscopy
  • 2-photon microscopy
  • 3D imaging,
  • Laser technology
  • Interferometry
  • Biotechnology
  • Micromanipulation
  • Autofocus for large travel ranges
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