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60 mm Cage Rotation Mounts


  • Two Models Offer 360° of Rotation
  • SM2- or SM1-Threaded Rotation Carriage
  • Engraved Graduations at 1° Increments

LCRM2

Application Idea

Rotating 30 mm Cage Assembly
Within 60 mm Cage System

LCP02R

Related Items


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Alternative Size Options
16 mm Cage Rotation Mounts
30 mm Cage Rotation Mounts
60 mm Cage Rotation Mounts

Features

  • Mounts for Ø2" (Ø50.8 mm) Optics (LCRM2) or SM1-Threaded Components (LCP02R)
  • Setscrew Locking Mechanism
  • Compatible with 60 mm Cage System

Thorlabs offers two rotation mounts for integrating optics and mechanical assemblies with 60 mm cage systems. The LCRM2(/M) Rotation Mount is designed to provide 360° of continuous rotation for Ø2" (50.8 mm) optics. Alternatively, other optomechanical components can be mounted in the SM2-threaded (2.035"-40) rotation carriage to integrate other optic sizes and shapes with a 60 mm cage system, as shown in the photo above (see the Application tab for details). The LCP02R(/M) rotation mount provides fine rotation adjustment over a ±8° range for SM1-threaded components mounted in a 60 mm cage system.

LCRM2 - Creating a Rotating 30 mm Cage Assembly Within a 60 mm Cage System

Thorlabs' versatile cage system can be used to create complex optical systems with elements that are aligned along a common optical axis. The cage system is available in three different sizes (16 mm, 30 mm, and 60 mm rod spacings), with a wide selection of accessories available as well as cage size adapters that allow for interoperability of different cage sizes. Smaller cage assemblies may be mounted within larger ones where clearances allow, as in the Application Idea above.

Design & Construction

In the Application Idea above, a 30 mm cage assembly is mounted on a CP07T SM2-Threaded Round Cage Plate, which is threaded into an LCRM2 60 mm Cage Rotation Mount (available below). The 30 mm cage assembly consists of a TO-can laser diode and collimation optics. Rotating the laser diode in conjunction with its collimation optics allows the polarization axis of the TO can laser diode to be rotated while maintaining a collimated, approximately Gaussian beam.

The Ø9 mm TO can laser diode is mounted in an LDH9-P2 30 mm Cage Collimation Mount and SR9 ESD Protection/Strain Relief Cable. The collimated elliptical output of the laser diode is corrected for using cylindrical lenses mounted in CYCP Cylindrical Lens Mounts. ER1.5 Cage Assembly Rods must be substituted for the ER2 rods that are included with each CYCP mount. This provides the necessary clearance for the 30 mm cage assembly to rotate unobstructed within the 60 mm cage assembly.


Click to Enlarge

Rotating 30 mm Cage Assembly Within 60 mm Cage System
60 mm Cage System Components
# Product Description Item # Item Qty.
1 60 mm Cage Rotation Mount for Ø2" Optics LCRM2 1
2 SM2-Threaded Round 30 mm Cage Plate CP07T 1
3 60 mm Threaded Cage Plate LCP01 1
4 60 mm Cage Clamp for Ø1.5" Posts CH1560 1
5 Cage Assembly Rod, 8" Long, 4 Pack ER8-P4 1
6 Ø1.5" Mounting Post - 1
30 mm Cage Assembly Components
# Product Description Item # Item Qty.
7 Ø5.6 mm, Ø9 mm, or TO3 TO Can Laser Diode - 1
8 ESD Protection and Strain Relief Cable - 1
9 30 mm Cage Plate
Laser Diode
Collimation Mount a
For Ø5.6 mm TO Can LD LDH56-P2 1
For Ø9 mm TO Can LD LDH9-P2
For TO3 Laser Diode LDH3-P1
10 Mounted M9 x 0.5 mm Aspheric Lens - 1
11 30 mm Cage Mount for Cylindrical Lenses CYCP 2
12 Plano-Concave Cylindrical Lens - 1
13 Plano-Convex Cylindrical Lens - 1
14 Cage Assembly Rod, 1.5" Long, 4 Pack ER1.5-P4 1
15 Cage Assembly Rod, 4" Long, 4 Pack ER4-P4 1
  • Choose the passive laser diode (LD) mount compatible with the laser diode package (Mounting options for Ø5.6 mm or Ø9 mm TO can as well as TO3 laser diodes are available).

Cage System Overview

The Cage Assembly System provides a convenient way to construct large optomechanical systems with an established line of precision-machined building blocks designed for high flexibility and accurate alignment.

16 mm, 30 mm, and 60 mm Cage System Standards

Thorlabs offers three standards defined by the center-to-center spacing of the cage assembly rods (see image below). The 16 mm cage, 30 mm cage, and 60 mm cage standards are designed to accomodate Ø1/2", Ø1", and Ø2" optics, respectively. Specialized cage plates that allow smaller optics to be directly inserted into our larger cage systems are also available.

Standard Threads

The flexibility of our Cage Assembly System stems from well-defined mounting and thread standards designed to directly interface with a wide range of specialized products. The three most prevalent thread standards are our SM05 Series (0.535"-40 thread), SM1 Series (1.035"-40 thread), and SM2 Series (2.035"-40 thread), all of which were defined to house the industry's most common optic sizes. Essential building blocks, such as our popular lens tubes, directly interface to these standards.


An example of the standard cage plate measurements determining cage system compatibility.
Standard Cage System Measurements
Cage System 16 mm 30 mm 60 mm
Thread Series SM05 SM1 SM2
Rod to Rod Spacing 16 mm (0.63") 30 mm (1.18") 60 mm (2.36")
Total Length 25 mm (0.98") 41 mm (1.60") 71.1 mm (2.8")
Cage Components
Cage Rods 16 mm These rods are used to connect cage plates, optic mounts, and other components in the cage system. The SR Series Cage Rods are compatible with our 16 mm cage systems, while the 30 mm and 60 mm cage systems use ER Series Cage Rods.
30 mm
60 mm
Cage Plates 16 mm These serve as the basic building blocks for a cage system. They may have SM-threaded central bores, smooth bores sized for industry standard optics or to accommodate the outer profile of our SM Series Lens Tubes, or specialized bores for other components such as our FiberPorts.
30 mm
60 mm
Optic Mounts 16 mm Thorlabs offers fixed, kinematic, rotation, and translation mounts specifically designed for our Cage Systems.
30 mm
60 mm
Cage Cubes 16 mm These cubes are useful for housing larger optical components, such as prisms or mirrors, or optics that need to sit at an angle to the beam path, such as beamsplitters. Our cage cubes are available empty or with pre-mounted optics.
30 mm
60 mm
Post and Breadboard Mounts and Adapters Mounting options for cage systems can be found on our Cage System Construction pages. Cage Systems can be mounted either parallel or perpendicular to the table surface.
Size Adapters Cage System Size Adapters can be used to integrate components from different cage system and threading standards.
Specialized Components Thorlabs also produces specialized cage components, such as Filter Wheels, a HeNe Laser Mount, and a FiberPort Cage Plate Adapter, allowing a wide range of our products to be integrated into cage-mounted optical systems. Explore our Cage Systems Visual Navigation Guide to see the full range of Thorlabs' cage components.

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Rotation Mount and Stage Selection Guide

Thorlabs offers a wide variety of manual and motorized rotation mounts and stages. Rotation mounts are designed with an inner bore to mount a Ø1/2", Ø1", or Ø2" optic, while rotation stages are designed with mounting taps to attach a variety of components or systems. Motorized options are powered by a DC Servo motor, 2 phase stepper motor, or an Elliptec™ resonant piezo motor. Each offers 360° of continuous rotation.

Manual Rotation Mounts

Rotation Mounts for Ø1/2" Optics
Item # MRM05(/M) RSP05(/M) CRM05 PRM05(/M)a SRM05 KS05RS CT104
Click Photo
to Enlarge
Features Mini Series Standard External SM1
(1.035"-40) Threads
Micrometer 16 mm Cage-Compatible ±4° Kinematic Tip/Tilt Adjustment Plus Rotation Compatible with CT1 Cage Translator Stage and 1/4" Translation Stagesb
Additional Details
  • This mount is available in the PRM05GL5 bundle, which includes the PRM05 rotation mount with the SM05PM5 polarizing prism mount.
  • The CT104 is complatible with the 1/4" translation stages using our MS103(/M) adapter plate.
  • The CT104 is compatible with the CT1 cage translation stage, which is designed for use with 30 mm cage systems.

Rotation Mounts for Ø1" Optics
Item # RSP1(/M) LRM1 RSP1D(/M) DLM1(/M) CLR1(/M) RSP1X15(/M) RSP1X225(/M) PRM1(/M)a
Click Photo
to Enlarge
LRM1
Features Standard External SM1
(1.035"-40) Threads
Adjustable Zero Two Independently Rotating Carriages Rotates Optic Within
Fixed Lens Tube System
Continuous 360° Rotation
or 15° Increments
Continuous 360° Rotation
or 22.5° Increments
Micrometer
Additional Details
  • This mount is available in the PRM1GL10 bundle, which includes the PRM1 rotation mount with the SM1PM10 polarizing prism mount.

Rotation Mounts for Ø1" Optics
Item # LM1-A &
LM1-B(/M)
CRM1(/M) CRM1L(/M) CRM1P KS1RS K6XS
Click Photo
to Enlarge
Features Optic Carriage Rotates Within Mounting Ring 30 mm Cage-Compatiblea 30 mm Cage-Compatible
for Thick Opticsa
30 mm Cage-Compatible
with Micrometera
±4° Kinematic Tip/Tilt Adjustment Plus Rotation Six-Axis
Kinematic Mounta
Additional Details
  • This mount also features four 4-40 (M3) holes on the rotation dial for use with the K6A1(/M) prism platform.

Rotation Mounts for Ø2" Optics
Item # RSP2(/M) RSP2D(/M) PRM2(/M) LM2-A &
LM2-B(/M)
LCRM2(/M) KS2RS K6X2
Click Photo to Enlarge
Features Standard Adjustable
Zero
Micrometer Optic Carriage Rotates Within Mounting Ring 60 mm Cage-Compatible ±4° Kinematic Tip/Tilt Adjustment Plus Rotation Six-Axis Kinematic Mount
Additional Details

Manual Rotation Stages

Manual Rotation Stages
Item # RP005(/M) MSRP01(/M) RP01(/M) RP03(/M) QRP02(/M)
Click Photo
to Enlarge
Continuous Rotation Mount
Features Standard Two Hard Stops
Additional Details

 

Manual Rotation Stages
Item # XRR1(/M) PR01(/M) CR1(/M) XYR1(/M) OCT-XYR1(/M)
Click Photo
to Enlarge
Features Fine Rotation Adjuster and
3" Wide Dovetail Quick Connect
Fine Rotation Adjuster and
SM1-Threaded Central Aperture
Fine Pitch Worm Gear Rotation and 1/2" Linear XY Translation
Additional Details
  • The stage profile is higher when it is mounted using the screw slots rather than stacked on another stage or accessory with 3" dovetails.
  • The OCT-XYR1(/M) stage includes the XYR1A solid sample plate. This plate can be detached from the stage to reveal the same mounting features present on the XYR1(/M) stage.

Motorized Rotation Mounts and Stages

Motorized Rotation Mounts and Stages
Item # DDR25(/M) K10CR1(/M) PRM1Z8(/M)a PRMTZ8(/M)b DDR100(/M) HDR50(/M) ELL18(/M)c
Click Photo
to Enlarge
Features Compatible with
SM05 Lens Tubes,
16 mm Cage System,
30 mm Cage System
Compatible with SM1 Lens Tubes and
30 mm Cage System
Tapped Mounting Platform for Mounting Prisms or Other Optics Compatible with
SM1 Lens Tubes,
16 mm Cage System,
30 mm Cage System
Compatible with
SM2 Lens Tubes
Tapped Mounting Platform, Open Frame Design for OEM Applications
Additional Details
  • This stage is available in the KPRMTE(/M), which includes the PRMTZ8(/M) Motorized Rotation Stage with the KDC101 K-Cube DC Servo Motor Controller.
  • This stage is available in the KPRM1E(/M), which includes the PRMT1Z8(/M) Motorized Rotation Stage with the KDC101 K-Cube DC Servo Motor Controller.
  • This stage is available in the ELL18K(/M), which includes an interface board, mounting brackets, and connectors for PC control.

60 mm Cage Rotation Mount, 360° Continuous

  • Mounts Ø2" (Ø50.8 mm) Optics
  • Ø48 mm Clear Aperture
  • 360° of Continuous Rotation
  • 1° Engraved Graduations on Dial, Labeled Every 10°
  • Setscrew Locking Mechanism
  • SM2 Compatible Rotation Carriage
  • Tapped 8-32 (M4) Hole for Post Mounting

The LCRM2(/M) Rotation Mount is designed to mount Ø2" (50.8 mm) optics up to 0.51" (13 mm) thick in an SM2-threaded (2.035"-40) rotation carriage. The optic is secured using the included SM2RR retaining ring (the SPW604 spanner wrench is ideal for tightening this retaining ring). For thicker optics, any of our SM2 series of lens tubes can be threaded into the carriage. The smooth rotation mechanism allows for precise positioning of the rotation carriage. The mount is compatible with the 60 mm cage system and can be mounted on a Ø1/2" optical post using the 8-32 (M4) tapped mounting hole on the bottom side of the rotation mount.

The LCRM2(/M) mount is also compatible with the CP07T SM2-Threaded Round Cage Plate which allows 30 mm cage assemblies to be used inside a 60 mm cage system. This is illustrated in the Application Idea above. For more details, please see the Application tab.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
LCRM2 Support Documentation
LCRM2Customer Inspired! 60 mm Cage Rotation Mount for Ø2" Optics, 8-32 Tap
$141.76
Today
+1 Qty Docs Part Number - Metric Price Available
LCRM2/M Support Documentation
LCRM2/MCustomer Inspired! 60 mm Cage Rotation Mount for Ø2" Optics, M4 Tap
$141.76
Today

60 mm Cage Rotation Mount with SM1-Threaded Bore, ±8° Fine Rotation Adjustment

Camera Rotation Mount
Click to Enlarge

A USB C-Mount camera can be mounted to the LCP02R using the SM1A39 thread adapter.
Cage Rotation mount
Click to Enlarge

The LCP02R allows for fine adjustment of optic rotation in 60 mm cage systems.
Variable Rotation Mount
Click to Enlarge

Loosening all three setscrews along the edge of the front face allows the SM1-threaded rotation plate to be removed. It can be installed in reverse, which brings the SM1 threads flush with the front surface of the mount.
Microscope Camera Rotation Mount
Click to Enlarge

The back plate of the LCP02R is 60 mm cage compatible and has an SM1-threaded bore.
  • Mount SM1-Threaded Components
  • ±8° of Fine Rotation; 360° Manual Coarse Rotation
  • 1° Engraved Graduations, Labeled Every 2°
  • Front and Back Plate Have Internal SM1 (1.035"-40) Threads for Ø1" Lens Tubes
  • Suitable for Cantilevered Loads up to 0.5 ft-lbs (0.68 N•m) Torque
  • Two 1/4"-20 (M6) Tapped Holes for Post Mounting

Thorlabs' LCP02R(/M) 60 mm Cage System Rotation Mount with SM1 threads provides ±8° of rotation adjustment for SM1-threaded components integrated with 60 mm cage systems. Three setscrews around the edge of the front face can be loosened using a 1/16" (1.5 mm) hex key to allow manual 360° rotation. Once these screws are tightened, fine rotation adjustment is achieved via a threaded adjuster. A fine adjustment scale engraved on the side of the mount has graduations every 1° with a range of ±8°. For motorized adjustments, the manual adjuster can be replaced with a Z812 servo motor actuator that provides a total of 13° of fine rotation adjustment.

The back plate of the mount features four through holes for ER cage rods that are compatible with Thorlabs' 60 mm cage system. The front and back plates of the mount have 0.20" (5.1 mm) deep internal SM1 (1.035"-40) threads, allowing Ø1" lens tubes and other SM1-threaded components to be integrated with the rotation mount. Alternatively, Thorlabs USB C-mount cameras or Scientific Cameras can be attached to one of the SM1-threaded bores in the LCP20R rotation mount via the SM1A39 SM1 to C-Mount Adapter.

A side located setscrew that accepts a 0.050" hex key helps to prevent the rotation angle from being displaced by accidental contact. Two 1/4"-20 (M6) taps in the back plate allow the LCP02R to be post mounted.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
LCP02R Support Documentation
LCP02R60 mm Cage System Rotation Mount with SM1-Threaded Aperture, 1/4"-20 Taps
$450.88
Today
+1 Qty Docs Part Number - Metric Price Available
LCP02R/M Support Documentation
LCP02R/M60 mm Cage System Rotation Mount with SM1-Threaded Aperture, M6 Taps
$450.88
Today
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