Motorized Filter Flip Mounts


Motorized Filter Flip Mounts

  • 90° Flipping Between Two Positions
  • Accepts up to Two Optic Holders
  • Controlled using Button, Handset, External Trigger, or Software
  • Fully Configurable Input and Output Signals


  • Lens Holder Included
    • MFF101(/M) Includes One LMR1(/M) Ø1" Lens Mount
    • MFF102(/M) Includes One LMR2(/M) Ø2" Lens Mount
  • Compatible with All LMR Series and FMP Series Mounts up to 2.0" Optic Diameter
  • Velocity Feedback for Smooth Transitional Motion
  • Compact Design (70 mm x 30 mm x 30 mm)
  • Mechanical Hard Stops for Repeatable Positioning
  • 8-32 (M4) Tap for Post Mounting
  • Remote Handset with 39" (1 m) Cable, APT Software Suite, and Power Supply Included

These Two-Position, High-Speed Flip Mounts flip lenses, filters, and other optical components into and out of a free-space beam. As shown by the image below, up to two optic mounts can be attached to the same flipper unit, allowing the user to alternate between optics. The flip action can be controlled in four ways: by the button on the top of the unit, via the included remote handset, via the external SMA connectors, or via a PC running the included APT software. The flipper position rotates 90° clockwise or counterclockwise when it is toggled and may be toggled either by an absolute signal level (i.e., low and high control voltages correspond to specific flipper positions) or by an edge (i.e., a change in the control voltage level causes the flipper to rotate).

The small (70 mm x 30 mm x 30 mm) flipper units have two SMA connectors on the side face, marked DIG I/O 1 and DIG I/O 2, which accept input signals from the remote handset or from an external trigger. They can also be configured by a PC running the included APT software to output signals when "In Motion" or "At Position." Software settings can be saved (persisted) within the unit to enable use without a PC.

The MFF101(/M) comes with an LMR1(/M) Ø1" optic mount, which holds an optic with the included SM1RR retaining ring, while the MFF102(/M) comes with an LMR2(/M) Ø2" optic mount, which holds an optic with the included SM2RR retaining ring. Any of our other mounts from the LMR Series or FMP Series can be attached to the flipper mount, so long as their optic diameter does not exceed 2.0" (50.8 mm). As shown in the image above, a bracket connects the optic mount to the flipper unit. The optic mount is held to the bracket by an 8-32 (M4) screw, and the bracket is held to the flipper unit by a flexure clamp. The flexure clamp tightens using two setscrews that accept the provided 0.035" (0.9 mm) hex key. Two brackets and two 8-32 (M4) screws are provided with each flipper unit.

A bottom-located 8-32 (M4) tapped hole allows the flipper to be mounted on a Ø1/2" post. The flipper is powered by the included TPS001 15 V power supply, which ships with a location-specific plug. A 1 m long micro-USB to USB cable is also included to connect the flipper to a PC for control and configuration.

The flipper is ideal for use with many types of optics, including mirrors. When used with a mirror, please note that the unit is not recommended for applications requiring better than 100 µrad beam stability. The torque applied to the unit should not exceed 0.1 N•m, and the maximum load capacity, including optic mounts and optics, is 120 g (4.23 oz). The side face of the unit contains an array of vent holes to aid cooling; please ensure that the air flow around these vent holes is not restricted.


Flip Positions 0° and 90°
Flip Time <0.5 s
Optic Diametera MFF101: 1"
MFF102: 2"
Flip to Flip Repeatability  
Maximum Driftb 1.0 µm2
Maximum Loadc 120 g (4.23 oz)
Maximum Torque 0.1 N•m
DIG I/O Connector Typed SMA (2 Places)
Power Input 15 VDC
(Excluding Power Supply)
100 g (3.53 oz)
  • The optic diameter quoted is that of the lens mount included with the flipper. The lens mount can be exchanged for another LMR Series or FMP Series mount up to a maximum optic diameter of 2".
  • Measured in a temperature-controlled environment at 26 °C.
  • Includes optics and optic mounts.
  • The digital I/O connectors use low and high TTL signal levels (0 V and 5 V, respectively).



SMA Female

SMA Female

Expects and Outputs TTL Signal Levels
TTL Low: 0 V
TTL High: 5 V


Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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