Motion Control – Custom Linear Mechanisms – Aperture Stage

Motion Control – Custom Linear Mechanisms …

Welcome to Where Precision Is.  You Can Turn to Steinmeyer for Design and Assembly of Custom Linear Mechanisms for your Precision Positioning Systems
Modern mechatronic systems consist of numerous precision components that must be assembled in complex configurations. Here, every detail counts.Steinmeyer Mechatronik, a division of August Steinmeyer GmbH, offers design and assembly services for a variety of demanding applications.We have deep experience in medical devices, laboratory instrumentation, optical inspection & semiconductor positioning. Our engineers can implement your finished design or optimize your concept.

Motorized Aperture Stage

Highest precision and compact design

The aperture control is used to adjust a pass-through window for a power laser and makes it possible to confine a laser beam to any rectangular format. The pass-through window is formed by means of four individual apertures, which are positioned by two drives. The height and width of the window can be adjusted almost infinitely from fully closed up to a size of 25 x 25 mm (maximum open); the smallest adjustment step is 50 nm. The beam center is fixed and cannot be changed.

Driven by DC motor and precision spindle with belt deflection

Since the pairs of individual apertures must be moved synchronously to adjust the pass-through window, two individual apertures each are moved by one spindle. The aperture control is driven by a DC motor and a precision spindle with belt deflection – a design with advantages: Owing to right-hand and left-hand threads on one spindle, two counter-rotating movements can be generated with one motor. In addition, the flat design requires only a short installation length in the optical beam path. Since the pairs of individual apertures must be moved synchronously to adjust the pass-through window, two individual apertures each are moved by one spindle. In this process, the parallelism of the apertures that are arranged on opposite sides deviates only by a maximum of 10 µm.

Trust Steinmeyer With Linear Mechanism Solutions:

    • We can assemble custom linear mechanisms of all sizes – from miniature actuators using 3 mm linear rails, to 3 m long lifting mechanisms.
    • As an added value, our engineers will offer innovative ideas for optimizing your design.
    • We can quote a completely assembled module, including sourcing of key components!
    • We offer our customers the advantage of a close working relationship, enabling us to provide you with the best possible solution to meet your needs.

Contact Person for Custom Linear Modules

Bruce Gretz

Phone: 781-273-6220

Bruce Gretz

About Steinmeyer

In the realm of linear motion control, Steinmeyer is synonymous with precision, innovation, and exacting standards of quality. We are the world’s longest continuously-operating manufacturer of commercial ball screws, our main product line. As an added value, we offer customized linear modules from our highly innovative and experienced Mechatronik division. Designed and manufactured in Germany, our products are used globally in precision positioning for medical devices, lab instruments, and other mechatronic applications. Steinmeyer engineers will work closely with you to customize our offering to deliver a solution that meets your technical requirements and budget.

For further information on Steinmeyer’s extensive product portfolio, call 1-781-273-6220 or visit Steinmeyer at:

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