March 3rd, 2015 
Editor Motion Control – Linear Focus Actuator
Forestville, CA –The LFA-2010 Linear Focus Actuator from Equipment Solutions is a high performance compact motion control positioner, specifically developed for optical applications requiring both high precision and high speed positioning over a short to medium stroke.
The LFA-2010 actuator has a 10 mm range of motion with <50 nanometer positioning repeatability, and a small step response of time of <3 milliseconds. This high force, low noise voice coil motor is typically configured with an analog position feedback sensor and can be optionally equipped with a 1um resolution digital quadrature feedback element.
Specifications
| Clear aperture (option) | 20 mm |
| Range of Motion | 10 mm |
| Positioning Resolution | 50nm (analog), 1mm (digital) |
| Peak Force | 30 lbs (for 10 sec.) |
| Max Continuous Force | 4.5 lbs (20 N) |
| Motor Constant | 0.6 lbs/Amp (2.7 N/Amp) |
| Coil Resistance | 1.5 ohms |
| Coil Inductance | 100 uH |
| Travel Non-Straightness | <1 um (Flexure) |
| Flexure Parasitic Rotation | 0.1 degrees per mm travel |
| Dimension | 75 X 75 X 75 mm |
| Total Mass | 1.7 kg |
| Moving Mass | 50 g |
| cable length (stock) | 28” (700 mm) |
An important feature of this product is it’s innovative tubular architecture. This allows the 20 mm clear optical path to go directly through the middle of the motor. The patented dual ‘Flexures system’ has zero stiction/friction. For mounting optics a standard C-mount is provided, or an optional 12.7mm diameter lens socket. The C-mount provides options for adapters to common microscope objectives like DIN or M25 or M26. The LFA-2010 Linear Focus Actuator is well suited for optical focusing and other micropositioning applications such as scanning interferometry, surface structure analysis, disk drive testing, autofocus systems, confocal microscopy, biotechnology, and semiconductor test equipment.
The LFA-2010 Linear Focus Actuator can be supplied “Plug-and-Play,” with the SCA814 Servo Controlled Amplifier, a matching power supply, and necessary cabling for easy integration into new and existing applications.
LFA-2010 Interfacing and User Manual
Equipment Solutions, Inc. (ESI) is a provider of engineering and manufacturing services. ESI specializes in the design and production of automation and instrumentation products including motion control components and sub systems. ESI’s products range from galvanometer amplifiers with an integrated arbitrary waveform generator, to high-resolution displacement sensors, voice coil and stepper motor stages, amplifiers and controllers.
For additional information contact Jeff Knirck at Equipment Solutions,Inc. Mailing Address – PO Box 159, Forestville, CA 95436; Shipping Address 6490 Front Street, Forestville, CA 95436; Tel: 408-245-7162, Fax: 408-245-7160, E-Mail: info@equipsolutions.com or visit the Website at http://www.equipsolutions.com
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