LFA-3404 Linear Focus Actuator Highlights Contact Us

  • LFA-3404 Linear Focus ActuatorThe LFA-3404 Linear Focus Actuator is a high performance compact positioning system.  It was specifically developed for optical applications requiring both high precision and high-speed positioning over a short to medium stroke.  The LFA-3404 is well suited for optical focusing and other micropositioning applications such as scanning interferometry, surface structure analysis, disk drive testing, autofocus systems, confocal microscopy, bio-technology, semiconductor test equipment.  Note that this motor is normally configured with an analog position feedback sensor and can be optionally equipped with a digital quadrature feedback element.    The key to this products immense success is its novel tubular architecture.  This arrangement provides a means to send the optical path directly through the middle of the motor.  The moving optic attached to the motors NIKON M25 x 0.75 threading mount is not cantilevered and so has no torques. By design, the LFA-3404 Linear Focus Actuator rotates approximately 0.1 degrees or 1.7 milliradians for every 1 millimeter of translation.  Product manufacturing tolerances are closely monitored so that both lateral and angular displacements about the motion axis are as small as possible.
  • LFA-3404 Linear Focus Actuator Specifications
  • LFA-3404 Linear Focus Actuator Motor Force Constant
  • LFA-3404 Linear Focus Actuator Interface Drawing
  • pdfLFA-3404 Linear Fouc Actuator Brochure provides a brief presentation of the products features and specifications.

    pdfVoice Coil Stage Interfacing and User Manual  deatils installation, operation and maintenance of the product.

    zipLFA-3404 Linear Foucs Actuator Interface Drawings presents the mechanical details necessary for integration of the product .


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  • LFA-3404 Linear Focus Actuator Various ViewsLFA-3404 Linear Focus Front ViewLFA-3404 Linear Focus Composite View