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30 mm Cage Cubes for Right-Angle Optics


  • Removable Insert for Easy Exchange of Optics in Aligned Experiment
  • Compatible with Cage Systems and Lens Tubes
  • Accept Right-Angle Prisms or Mirrors

DFM1RM

30 mm Cage Cube for Right-Angle Mirrors (Sold Separately)

DFM1T4

Separate Inserts Available for Easy Exchange of Optics

DFM1B

Separate Cube Bases Available

Application Idea

DFM1RM Cube with installed right-angle mirror can direct a beam 90° to the right in a cage system. Left turning cubes and inserts are also available.

Related Items


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Prism Drawing
Orient the right-angle mirror in the cube as illustrated to reflect the incident beam. The top of the cube is engraved with a similar diagram showing the intended beam path.

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Mount a right-angle mirror using the mounting bar in the cube insert.

Features

Thorlabs' Cage Cubes for Right-Angle Optics allow for mounting of 25 mm x 25 mm right-angle mirrors or prisms within a 30 mm cage system. Each cube consists of a kinematic base with four SM1-threaded (1.035"-40) ports surrounded by four 4-40 tapped holes for compatibility with 30 mm cage systems. The ports are at an optical axis height of 1.25" and 30 mm for the imperial and metric versions, respectively. Magnets in the base and insert of the beam turning cube ensure repeatable positioning of the cube within a cage system. The top is engraved with a diagram of the mirror location and indicates the light path through the cube. The cube insert is designed to be inserted in a single orientation with respect to the cube base. Thus, it is important to orient the full cube assembly in the proper direction within the setup; left-turning and right-turning cage cubes and cage cube inserts are available. To determine how to orient the beam turning cube within your system, please refer to the diagram on the right.

Kinematic Cage Cubes Selection Guide
Type 30 mm Cage Cubes 60 mm Cage Cubes
Empty Fluorescence Filter Cubes DFM1 DFM2
Empty Beamsplitter Cube DFM1BS -
Empty Right-Angle Mirror Cubes DFM1RM DFM2RM
Beam Turning Cubes with Pre-Mounted Prism Mirrors DFM1-xxx -

Additional cube inserts (sold separately below) can be used to exchange optics and to quickly switch between transmissive and left- or right-deflected beam paths. This is ideal for laser steering applications. The cube base is also separately available for purchase. The same base is used in Thorlabs' Fluorescence Filter Cube System, enabling a user to exchange right-angle mirrors/prisms and fluorescence filter sets within an aligned optical setup. Two adjacent kinematic cubes can be connnected using a Cage Cube Connector (sold separately below); the connector can be attached via the 4-40 tapped holes and unthreaded alignment holes surrounding each port.

For convenience, Thorlabs also offers 30 mm cage cubes with pre-installed right-angle mirrors.


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30 mm Cage-Compatible, Kinematic Beam-Turning Cubes for Right-Angle Mirrors


Click to Enlarge
The DFM1RM(/M) Cube (Left Panel) and DFM1LM(/M) Cube (Right Panel) used to direct a beam to the right or left, respectively. Light from a CPS532 Laser Diode was diverted by a MRA25-P01 Right-Angle Prism Mirror installed in each cube.
  • Kinematic Cage-Compatible Cubes for Mounting Right-Angle Mirrors or Prisms
    • DFM1RM(/M): Right-Turning Orientation
    • DFM1LM(/M): Left-Turning Orientation
  • Four 4-40 Tapped Holes Around Each SM1-Threaded Port for Cage System Compatibility
  • Three Bottom-Located 1/4"-20 (M6) Tapped Holes for Post Mounting

These Cage-Compatible Cubes consist of a post-mountable cube base and a removable insert that can securely hold a right-angle mirror or prism. The cube insert is magnetically retained in the cube base, allowing for repeatable removal and insertion of optics in an aligned setup. As depicted in the image to the right, the DFM1RM(/M) and DFM1LM(/M) cubes turn beams 90° to the right and left, respectively. These cubes do not include a pre-mounted mirror; for kinematic cage cubes with pre-mounted mirrors, see our 30 mm beam-turning cubes.

The DFM1xM cube inserts have two SM1-threaded ports to mount Ø1" optics (up to 5.0 mm thick) against the back lip (two SM1RR retaining rings included). The mounting bar to hold the right-angle mirror within the cage cube can be removed using the included 3/32" hex key (see the image above). The SM1 ports on the DFM1xM are at an optical axis height of 1.25" and 30 mm for the imperial and metric versions, respectively. 

All four sides of the turning cube base have an SM1-threaded port and four 4-40 tapped holes for compatibility with Ø6 mm cage rods. Each cube base has three bottom-located 1/4"-20 (M6) tapped holes that are directly compatible with top taps of our Ø1" and Ø1.5" posts, and the bottom tap of our Ø1/2" posts, using a user-supplied 1/4"-20 (M6) setscrew. Alternatively, an AE8E25E (AE4M6M) thread adapter can be used for compatibility with the top tap of our Ø1/2" posts.

Empty beam-turning cube inserts, base, and a cover plate are also sold separately below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
DFM1RM Support Documentation
DFM1RMKinematic Beam Turning 30 mm Cage Cube for Right-Angle Prism Mirror, Right Turning, 1/4"-20 Tapped Holes
$386.17
Today
DFM1LM Support Documentation
DFM1LMKinematic Beam Turning 30 mm Cage Cube for Right-Angle Prism Mirror, Left Turning, 1/4"-20 Tapped Holes
$386.17
Today
+1 Qty Docs Part Number - Metric Price Available
DFM1RM/M Support Documentation
DFM1RM/MKinematic Beam Turning 30 mm Cage Cube for Right-Angle Prism Mirror, Right Turning, M6 Tapped Holes
$386.17
Today
DFM1LM/M Support Documentation
DFM1LM/MKinematic Beam Turning 30 mm Cage Cube for Right-Angle Prism Mirror, Left Turning, M6 Tapped Holes
$386.17
Today

30 mm Cage-Compatible, Kinematic Beam-Turning Cube Bases and Inserts for Right-Angle Optics


Click to Enlarge
DFM1B base shown with CPS532 and no insert (top), a DFM1T2 insert with MRA25-P01 mirror (middle), and DFM1T4 insert with the same mirror installed (bottom).
  • Empty Kinematic Base and Inserts for Mounting User-Provided Right-Angle Mirrors
  • Ideal for Quickly Switching Mirrors or Turning Beam Direction in an Aligned Experimental Setup
  • Cube Base with Four 4-40 Tapped Holes Around Each SM1-Threaded (1.035"-40) Port for 30 mm Cage System Compatibility
    • Three Bottom-Located 1/4"-20 (M6) Tapped Holes for Post Mounting
  • Cover Plate for Uninterrupted Beam Transmission Available

These Kinematic Beam-Turning Cube Inserts (item #s DFM1T2 and DFM1T4) and Base [item # DFM1B(/M)] are ideal for mounting and exchanging right-angle mirrors or prisms within an aligned experimental setup.

The DFM1T2 and DFM1T4 cube inserts are designed to hold right-angle prisms or mirrors with sides measuring 25 mm x 25 mm. Two SM1-threaded ports on the cube inserts are available to mount Ø1" optics (up to 5.0 mm thick) against the back lip (two SM1RR retaining rings included). The mounting bar for holding the right-angle mirror within the cage cube can be removed using the included 3/32" hex key. The DFM1T2 insert holds a right-angle mirror in a right-turning orientation, and the DFM1T4 insert in a left-turning orientation. Thus, replacing the DFM1T2 insert with the DFM1T4 insert results in a 180° change in beam direction (see image to the right). These inserts are compatible with the Beam-Turning Cubes sold above as well as Thorlabs' Fluorescence Filter Cube and Beamsplitter Cube Systems.

Magnetic retention of a cube insert within the base allows for repeatable removal and insertion of optics in an aligned setup. All four sides of the DFM1B turning cube base have an SM1-threaded port and four 4-40 tapped holes for compatibility with Ø6 mm cage rods. Each cube base has three bottom-located 1/4"-20 (M6) tapped holes that are directly compatible with top taps of our Ø1" and Ø1.5" posts, and the bottom tap of our Ø1/2" posts, using a user-supplied 1/4"-20 (M6) setscrew. Alternatively, an AE8E25E (AE4M6M) thread adapter can be used for compatibility with the top tap of our Ø1/2" posts.

The ports on the cage cube base are at an optical axis height of 1.25" and 30 mm for the imperial and metric versions, respectively.

The DFM1C Cage Cube Cover is also available for users who need a insert cover for when a turning mirror is not installed within the cube. When used with the SM1CP2 End Cap, this cover reduces the amount of stray light entering through the top or unused ports.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
DFM1B Support Documentation
DFM1BKinematic 30 mm Cage Cube Base, 1/4"-20 Tapped Holes
$159.14
Today
+1 Qty Docs Part Number - Universal Price Available
DFM1C Support Documentation
DFM1CCustomer Inspired! Cover Plate for Kinematic 30 mm Cage Cube Base
$47.74
Today
DFM1T2 Support Documentation
DFM1T2Kinematic 30 mm Cage Cube Insert for Right-Angle Optics, Right-Turning
$270.53
Today
DFM1T4 Support Documentation
DFM1T4Kinematic 30 mm Cage Cube Insert for Right-Angle Optics, Left-Turning
$270.53
Today
+1 Qty Docs Part Number - Metric Price Available
DFM1B/M Support Documentation
DFM1B/MKinematic 30 mm Cage Cube Base, M6 Tapped Holes
$159.14
Today

30 mm Cage Cube Connector

Cage Cube Connector
Click to Enlarge
Two DFM1-P01 Beam Turning Cubes Connected Using the C4W-CC Cage Cube Connector
  • Connect Two Beam Turning, Fluorescence Filter, or Beamspliter Cubes Side by Side
  • Remove and Interchange Cube Inserts while the Cube Bases are Connected
  • Compatible with C4W and C6W Cage Cubes

The C4W-CC Cage Cube Connector allows two kinematic beam turning, fluorescence filter, or beamsplitter cubes to be connected together as shown in the image to the right. Two pins on the C4W-CC are accepted by drilled holes on either side of any of the SM1-threaded (1.035"-40) ports on the cage cube faces to maintain alignment. Cube inserts can still be removed and inserted while the cube bases are connected.

The C4W-CC is also compatible with our 30 mm cage cubes.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
C4W-CC Support Documentation
C4W-CCCustomer Inspired! 30 mm Cage Cube Connector for C4W and C6W Series Cubes
$54.65
Today
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