Kinematic Rotation Mounts

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Rotation Mounts and Stages

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A Cylindrical Achromatic Doublet Mounted in a KS1RS via an SM1 Lens Tube

Features

Combines Kinematic Angular Adjustment with Rotation in One Mount
1/4"-80 Lockable Adjusters Provide ±4° of Angular Adjustment
Engraved Rotation Scale with 2° Graduations Provides 360° Rotation
Fabricated from Black Anodized Aluminum
Compatible with SM05 (0.535"-40), SM1 (1.035"-40), or SM2 (2.035"-40) Lens Tubes

Thorlabs' Kinematic Rotation Mounts combine the features of our Precision Kinematic Mirror Mounts and Manual Rotation Mounts, providing continuous 360° rotational adjustment and ±4° kinematic tip/tilt adjustment. These mounts are therefore ideal for holding optics with rotational asymmetry, such as polarization optics or round cylindrical lenses.

The mounts are available in three sizes for directly mounting Ø1/2", Ø1" or Ø2" optics and are internally SM threaded for compatibility with SM05, SM1, or SM2 lens tubes. For direct mounting, one SM-threaded retaining ring is included. The rotation of the mount and position of the kinematic adjusters may be independently locked in position with locking screws.

If higher adjustment resolution or control is desired, the 1/4"-80 adjusters used in these mounts can be switched with DAS110 or DM22 Differential Adjusters.

Posted Comments:

user (posted 2017-12-06 18:52:12.477)

What is the distance between the center of optics and the bottom of the mount?

nbayconich (posted 2017-12-08 02:49:10.0)

Thank you for contacting Thorlabs. The height from the center of your optic and the base of the KS1RS is 39.6mm. These dimensions can be found under the Auto CAD .pdf files in the product documents.

anthony.phan (posted 2017-08-07 12:47:44.69)

May I suggest this product but with precision rotary control?

tfrisch (posted 2017-08-16 03:26:21.0)

Hello, thank you for contacting Thorlabs. I have posted this in our internal engineering forum, but I will also reach out to you directly about using multiple stock components together to achieve a similar performance.

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
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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 Stages^b
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
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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-Compatible^a	30 mm Cage-Compatible for Thick Optics^a	30 mm Cage-Compatible with Micrometer^a	±4° Kinematic Tip/Tilt Adjustment Plus Rotation	Six-Axis Kinematic Mount^a
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
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Features	Standard	Adjustable Zero	Micrometer	Optic Carriage Rotates Within Mounting Ring	60 mm Cage-Compatible	±4° Kinematic Tip/Tilt Adjustment Plus Rotation
Additional Details

Manual Rotation Stages

Manual Rotation Stages
Item #	RP005(/M)	MSRP01(/M)	RP01(/M)	RP03(/M)	QRP02(/M)
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Features	Standard				Two Hard Stops
Additional Details

Manual Rotation Stages
Item #	XRR1(/M)	PR01(/M)	CR1(/M)	XYR1(/M)	OCT-XYR1(/M)
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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

Motor Type	Brushless DC Servo	2 Phase Stepper Motor with Worm Gear	DC Servo	DC Servo	Brushless DC Servo	2 Phase Stepper Motor with Worm Gear	Piezo Resonant Motor
Rotation Adjustment Range	360° Continuous
Mounting Platform
Diameter	Ø1.14" (Ø29.0 mm)	Ø1.81" (Ø46.0 mm)	Ø1.97" (Ø50.0 mm)	Ø2.61" (Ø66.2 mm)	Ø4.37" (111.0 mm)	Ø3.86" (Ø98.0 mm)	Ø1.97" (Ø50.0 mm)
Height	1.12" (28.5 mm)	0.84" (21.5 mm)	0.91" (23.0 mm)	0.98" (25.0 mm)	1.57" (39.9 mm)	1.73" (44.0 mm)	0.80" (20.3 mm)
Taps	-	Six 4-40 (M3)	Four 6-32 (M4) Four 8-32 (M4)	Eight 6-32 (M4) Sixteen 8-32 (M4) Five 1/4"-20 (M6)	Eight 8-32 (M4) Four 1/4"-20 (M6)	Four 8-32 (M4)	37 8-32 (M4)
Additional Holes	Clear Aperture with SM05 Threading	Clear Aperture with SM1 Threading	Clear Aperture with SM1 Threading	-	Clear Aperture with SM1 Threading	Clear Aperture with SM2 Threading	-
Speed (Max)	1800 °/s	10 °/s	25 °/s	25 °/s	1080 °/s	50 °/s	430 °/s
Platform Adapter Plate(s)	-	K10CR1A2(/M)	PRM1SP1(/M)	-	NR360SP9(/M) NR360SP4(/M)	NR360SP9(/M) NR360SP8 NR360SP4(/M)	-
Base
Dimensions	2.19" x 2.19" (55.6 mm x 55.6 mm)	4.21" x 2.60" (107.0 mm x 66.0 mm)	5.18" x 3.26" (131.5 mm x 82.8 mm)	5.41" x 2.88" (137.4 mm x 73.3 mm)	4.53" x 4.53" (115 mm x 115 mm)	7.46" x 4.55" (189.4 mm x 115.5 mm)	3.19" x 2.36" (81.0 mm x 60.0 mm)
Stage Adapter Plates	-	K10CR1A1 K10CR1A3	PRM1SP2 PRM1SP3	-	-	NR360SP2(/M) NR360SP5(/M)	Two Mounting Brackets in ELL18K(/M) Bundle
Mounting Holes	-	-	Two Counterbores for 1/4"-20 (M6) Cap Screws	One Counterbore for 1/4"-20 (M6) Cap Screw; Two Clearance Holes for 1/4"-20 (M6) Cap Screws	Four Clearance Holes for 1/4"-20 (M6) Cap Screws	Four Counterbores for 1/4"-20 (M6) Cap Screws	Mounting Bracket in ELL18K(/M) Bundle has Two Slots for 1/4"-20 (M6) Cap Screw
Side Taps for Vertical Mounting	Four 8-32 (M4) Eight 4-40	Three 8-32 (M4)	Four 8-32 (M4)	-	Eight 1/4"-20 (M6)	Six 1/4"-20 (M6)	N/A
Cage System Compatibility	Four 4-40 Taps on Rotation Dial with 16 mm Spacing, Four 4-40 Taps on Back Side with 16 mm Spacing, Four 4-40 Taps on Front Side with 30 mm Spacing	Four 4-40 Taps On Each Side with 30 mm Spacing	Four 4-40 Taps on Rotation Dial with 30 mm Spacing	N/A	Four 4-40 Taps on Rotation Dial with 16 mm Spacing, Four 4-40 Taps on Rotation Dial with 30 mm Spacing, Four 4-40 Taps on Back Side with 30 mm Spacing	N/A	N/A

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.

Ø1/2" Kinematic Rotation Mount

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KS05RS Shown with a PIAK10 Piezoelectric Inertia Actuator

Three 1/4"-80 Lockable Stainless Steel Adjusters with Removable Knobs and Brass Bushings for Smooth Adjustments
Two #8 (M4) Counterbored Mounting Holes Allow Left-Handed or Right-Handed Orientations
SM05-Threaded (0.535"-40) Rotation Ring with Locking Screw

The KS05RS is designed to hold Ø1/2" (12.7 mm) optics in situations where it is necessary to control the tip/tilt position as well as the rotation of the optic. This mount is ideal for polarization optics such as linear polarizers or wave plates. The KS05RS features an SM05-threaded bore capable of mounting Ø1/2" optics up to 0.41" (10.4 mm) thick using the included SM05RR retaining ring. Additionally, SM05 lens tubes may be threaded onto the mount to accomodate thicker optics.

The rotation of the mount may be locked in position with a locking screw. The locking screw is activated using a 0.050" (1.3 mm) hex key. The kinematic adjustment is provided by three 1/4"-80 adjusters with brass bushings to provide smooth adjustment. Each adjuster may be locked with a locking screw using a 5/64" (2 mm) hex key.

Please note that while this mount is designed to hold Ø1/2" optics, the mount uses the same form factor as the KS1 Ø1" mirror mount in order to incorporate the rotation ring.

Ø1" Kinematic Rotation Mount

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Three 1/4"-80 Lockable Stainless Steel Adjusters with Removable Knobs and Brass Bushings for Smooth Adjustments
Six #8 (M4) Counterbored Mounting Holes Allow Left-Handed or Right-Handed Orientations
SM1-Threaded (1.035"-40) Rotation Ring with Locking Screw

The KS1RS is designed to hold Ø1" (25.4 mm) optics in situations where it is necessary to control the tip/tilt position as well as the rotation of the optic. This mount is ideal for polarization optics such as linear polarizers or wave plates. In addition, our Ø1" round cylindrical lenses may also be mounted in the KS1RS when it is necessary to adjust the angle of the line produced at the focal plane. The KS1RS features an SM1-threaded bore capable of mounting Ø1" optics up to 0.47" (11.9 mm) thick using the included SM1RR retaining ring. Additionally, SM1 lens tubes may be threaded onto the mount to accommodate thicker optics.

The rotation of the mount may be locked in position with a locking screw. The locking screw is activated using a 5/64" (2 mm) hex key. The kinematic adjustment is provided by three 1/4"-80 adjusters with brass bushings to provide smooth adjustment. Each adjuster may be locked with a locking screw using a 5/64" (2 mm) hex key.

Please note that while this mount is designed to hold Ø1" optics, the mount uses the same form factor as the KS2 Ø2" mirror mount in order to incorporate the rotation ring.

Ø2" Kinematic Rotation Mount

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Two 1/4"-80 Lockable Stainless Steel Adjusters with Removable Knobs and Brass Bushings for Smooth Adjustments
Four #8 (M4) Counterbored Mounting Holes Allow Left-Handed or Right-Handed Orientations
SM2-Threaded (2.035"-40) Rotation Ring with Locking Screw

The KS2RS is designed to hold Ø2" (50.8 mm) optics in situations where it is necessary to control the tip/tilt position as well as the rotation of the optic. This mount is ideal for polarization optics such as linear polarizers or wave plates. In addition, our mounted dove prisms with SM2 threading may also be mounted in the KS2RS to change the orientation of the rotated image. The KS2RS features an SM2-threaded bore capable of mounting Ø2" optics up to 0.47" (12.0 mm) thick using the included SM2RR retaining ring. Additionally, SM2 lens tubes may be threaded onto the mount to accomodate thicker optics.

The rotation of the mount may be locked in position with a locking screw. The locking screw is activated using a 5/64" (2 mm) hex key. The kinematic adjustment is provided by two 1/4"-80 adjusters with brass bushings to provide smooth adjustment. Each adjuster may be locked with a locking screw using a 5/64" (2 mm) hex key.

Please note that while this mount is designed to hold Ø2" optics, the mount uses the same form factor as the KS3 Ø3" mirror mount in order to incorporate the rotation ring.

View All »Matching Part Numbers

Kinematic Rotation Mounts

Features

Rotation Mount and Stage Selection Guide

Manual Rotation Mounts

Manual Rotation Stages

Motorized Rotation Mounts and Stages

Ø1/2" Kinematic Rotation Mount

Ø1" Kinematic Rotation Mount

Ø2" Kinematic Rotation Mount