Microscope Stages

 

Microscope Stage – Open Aperture

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The products below represent a sub section of our complete portfolio and do not include our more complex assemblies. If you do not see exactly what you are looking for, please contact us. Over our history we have built thousands of assemblies. We pride ourselves on having the knowledge and experience to solve your unique challenge.

DOF series Dover Objective Focuser stage

DOF™

The DOF series Dover Objective Focuser stage has been optimized for optical microscopy applications.

Travel5 mm
Resolution1.25 nm
Repeatability< 50 nm
Bandwidth> 150 Hz
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INVERTED MICROSCOPE XY STAGE – OFS

OFS™

The OFS™ series inverted microscope XY stage of open frame XY tables combines low-profile, two-axis positioning with an open aperture. 

Travel50 - 200 mm
Accuracy15 μm TIR
Repeatability< ± 2.5 μm
Payload2 kg
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MOTORIZED XY STAGE – OFL

OFL™

The OFL™ series motorized XY microscope stage provides increased travel and load bearing capacity in an open frame XY configuration. 

Travel200 - 635 mm
Accuracy80 μm TIR
Repeatability< ± 0.3 μm
Payload80 kg
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MICROSCOPE STAGE – XYMR

XYMR™

The XYMR™ series XY microscope stage brings automated, highly accurate XY positioning to a wide range of microscope-based applications. 

Travel150 mm
Accuracy30 μm TIR
Repeatability< ± 1.5 μm
Payload10 kg
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DIRECT DRIVE MOTORIZED MICROSCOPE STAGE – DDM

DDM™

The DDM™ series direct drive motorized microscope stage provides quiet motion with the best accuracy and repeatability of the open frame series.  

Travel120 x 80 mm
Accuracy2 μm TIR
Repeatability< ± 0.25 μm
Payload1 kg
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About Microscopy Stages

Traditionally, microscopes have been human operated, with the user looking into an eyepiece, but increasingly, microscopy is becoming automated. At the heart of many biomedical instruments lies an automated digital microscope.

In addition to basic functions such as controlling the digital camera, illumination and filter selection, microscopes require two critical positioning functions. One is to precisely position the sample in the XY plane. This can either be done with fast moves between adjacent fields (field sequential imaging), or precise constant velocity motion (scanning imaging). This XY motion is performed by an XY microscope stage, which is typically a thin, low-profile XY stage with a central opening for the optical axis.

While XY microscope stages have typically been actuated with stepper motors and lead screws, cutting-edge designs employ a linear motor and a linear encoder on each axis, and close a servo feedback loop. The second key positioning task in an automated microscope is a focus axis. This moves the objective relative to the sample so as to maintain critical focus at all times.

While microscope focus axes have traditionally been piezo, direct drive technology with linear motors offers extended range, allowing the objective to be retracted during sample load and unload, together with very high resolution and repeatability. The focus axis position is typically commanded by an autofocus sensor, which derives a focus error signal via a laser diode passing through the objective or by a software autofocus algorithm.

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