P-722/P-723 PIFOC ® Focus Drives are fast and compact piezo mechanisms units which can be mounted on most microscopes. The units are screwed between the turret and the objective, providing a positioning and scanning range of up to 350 µm with nanometer resolution while extending the optical path by only 13 mm (infinity corrected microscope required; extension tubes are available to adjust path lengths of other objectives on the turret). Standard thread is W 0.8x1/36", alternate threads are ordered separately.
In open loop, the vertical position of the objective roughly corresponds to the drive voltage. The open loop models P-722.00 / P-723.00 are ideal for fast tracking applications where the position is controlled by data provided by an external sensor (e.g. optical displacement sensor, a CCD camera, etc.). The closed loop versions allow for absolute position control, high linearity and repeatability based on an integrated position feedback sensor.
Fast Focus Drives, scanning interferometry, surface structure analysis, disk drive testing, autofocus systems, confocal microscopy, bio-technology, semiconductor test equipment.
PIFOC focus drive positioners are equipped with low voltage piezoelectric drives (0 to 100 V) integrated into a sophisticated flexure guiding system. The force exerted by the piezo drive pushes a flexure parallelogram via an integrated motion amplifier. The wire EDM (Electric Discharge Machining) cut flexures are FEA (Finite Element Analysis) modeled for zero stiction/ friction, ultra-high resolution and exceptional guiding precision.
Optional threads for P-722.07/17 & P-723.07/17:
P-722.01 Thread M25x0.75 for P-722.07/17, P-723.07/17
P-722.02 Thread M26x0.75 for P-722.07/17, P-723.07/17
P-722.03 Thread M27x0.75 for P-722.07/17, P-723.07/17
P-722.04 Thread M28x0.75 for P-722.07/17, P-723.07/17
P-722.05 Thread M32x0.75 for P-722.07/17, P-723.07/17
P-722.06 Thread M26x1/36 for P-722.07/17, P-723.07/17
P-722.08 Thread M19x0.75 for P-722.07/17, P-723.07/17
- P-722.00 PIFOC Objective Positioner & Scanner, 200 µm, Thread W0.8 x1/36"
- P-722.07 PIFOC Objective Positioner & Scanner, 200 µm, Specify Thread (P-722.01 - .08)
- P-722.10 PIFOC Objective Positioner & Scanner, 200 µm, LVDT, W0.8x1/36"
- P-722.17 PIFOC Objective Positioner & Scanner, 200 µm, LVDT, Specify Thread (P-722.01 - .08)
- P-723.00 PIFOC Objective Positioner & Scanner, 350 µm, Thread W0.8x1/36"
- P-723.07 PIFOC Objective Positioner & Scanner, 350 µm, Specify Thread (P-722.01 - .08)
- P-723.10 PIFOC Objective Positioner & Scanner, 350 µm, LVDT, W0.8x1/36"
- P-723.17 PIFOC Objective Positioner & Scanner, 350 µm, LVDT, Specify Thread (P-722.01 - .08)