Cage Translation Stage and Accessories


  • 1/2" (12.7 mm) Travel Along Optic Axis
  • 30 mm Cage Compatible
  • Modular Design with Interchangeable Optic Mounts

CT104

Ø1/2" Rotation
Mount

CT101

Ø1" (Ø25 mm)
Optic Mount

CT102

Ø1/2" X-Y
Translation Mount

CT103

Blank Plate for
Custom Machining

CT1

1/2" (12.7 mm) Travel

Related Items


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The CT1 Cage Translation Stage travels 1/2" (12.7 mm) along the optical axis (or z-axis) of a 30 mm cage system. This translator includes a CT101 Ø1" optic mount, which is also available separately below. In addition, we offer other optic mounts that are designed for both the CT1 and the 1/4" Translation Stages. See below for details.

CT1 SmartPack Packaging
Click to Enlarge

CT1 Packaging

Smart Pack

Item # % Weight
Reduction
CO2-Equivalent
Reductiona
CT1 39.62% 31.78 kg

Smart Pack

  • Reduce Weight of Packaging Materials
  • Increase Usage of Recyclable Packing Materials
  • Improve Packing Integrity
  • Decrease Shipping Costs

Thorlabs' Smart Pack Initiative is aimed at waste minimization while still maintaining adequate protection for our products. By eliminating any unnecessary packaging, implementing packaging design changes, and utilizing eco-friendly packaging materials for our customers when possible, this initiative seeks to improve the environmental impact of our product packaging. Products listed above are now shipped in re-engineered packaging that minimizes the weight and the use of non-recyclable materials.b As we move through our product line, we will indicate re-engineered packages with our Smart Pack logo.

  • Travel-based emissions reduction calculations are estimated based on the total weight reduction of packaging materials used for all of 2013’s product sales, traveling 1,000 miles on an airplane, to provide general understanding of the impact of packaging material reduction. Calculations were made using the EPA’s shipping emissions values for different modes of transport.
  • Some Smart Pack products may show a negative weight reduction percentage as the substitution of greener packaging materials, such as the Greenwrap, at times slightly increases the weight of the product packaging.

Posted Comments:
user  (posted 2020-09-16 13:19:20.33)
I suggest adding an option for imperial or metric micrometer (as the included micrometer)
YLohia  (posted 2020-09-16 03:48:25.0)
Thank you for your feedback. We will consider adding this to our stock catalog. Please note that the CT1 can be ordered with a metric micrometer as a special item by emailing techsupport@thorlabs.com. Alternately, you may purchase the 148-801ST (metric micrometer) separately and install it in your CT1.
Ken Li  (posted 2020-08-21 22:03:39.79)
Please provide tolerance on the bottom key which is shown as nominal width of 4.0mm. What's the max/min of that width? -Ken Li 510-410-4283
YLohia  (posted 2020-08-24 10:27:57.0)
Hello Ken, thank you for contacting Thorlabs. The tolerance on the bottom key for the CT102 is 0.157" +0.000"/-0.001".
Eric Mueller  (posted 2020-05-28 12:54:57.197)
No metric version of the CT1 available (incl. a metric micrometer)? Cheers, Eric
llamb  (posted 2020-05-28 05:14:27.0)
Hi Eric, thank you for your feedback. The imperial micrometer included with the CT1 may be switched out with a metric micrometer (Item # 148-801ST) as needed. We can also provide a custom CT1 with a metric micrometer already included. I have reached out to you directly to discuss this option.
akastengren  (posted 2018-08-29 10:46:00.683)
Is there a way to put a stepper motor actuator on this product?
YLohia  (posted 2018-08-29 11:48:38.0)
Hello, thank you for contacting Thorlabs. Yes, it is possible to install a stepper motor actuator (such as the ZST213B) in the CT1 since it has a 3/8" mounting barrel.
acable  (posted 2007-12-31 08:28:00.0)
The description in the price box for the CT1 reads: 1/2" Cage Translation Stage. Please consider: 1/2" Travel 30mm Cage translator with CT101.

Cage Translation Stage with 1/2" Z-Axis Travel


Click to Enlarge
View Imperial Product List
Item #QtyDescription
CXY1130 mm Cage System, XY Translating Lens Mount for Ø1" Optics
CT111/2" Travel Manual Translation Stage for 30 mm Cage Systems
SM1S151SM1 Lens Tube Spacer, 1.5" Long
CP022SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, 8-32 Tap
ER8-P41Cage Assembly Rod, 8" Long, Ø6 mm, 4 Pack
View Metric Product List
Item #QtyDescription
CXY1130 mm Cage System, XY Translating Lens Mount for Ø1" Optics
CT111/2" Travel Manual Translation Stage for 30 mm Cage Systems
SM1S151SM1 Lens Tube Spacer, 1.5" Long
CP02/M2SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, M4 Tap
ER8-P41Cage Assembly Rod, 8" Long, Ø6 mm, 4 Pack
CXY1 Coupled to CT1 Z-Axis Translation Mount Using SM1S15 Lens Tube
  • Designed for Translation or Rotation of Optics Along 30 mm Cage System Optical Axis
  • Includes 1/2" Travel Micrometer with 0.001" per Graduation
  • Comes with CT101 Ø1" Optic Mount for Optics up to 0.35" (8.9 mm) Thick
  • Precision Linear Ball Bearings
  • Lockable Design

The CT1 Cage Translator is designed to be used in 30 mm cage systems that require translation along the optical axis of the cage. Precision linear ball bearings are used to ensure smooth, high-resolution motion. The graduated micrometer provides 1/2" (12.7 mm) of linear translation and has 0.001" graduations. The smallest incremental movement of the carriage is approximately 1 µm. The included micrometer (Item # 148-811ST) may be switched out with a metric micrometer (Item # 148-801ST) with 10 µm graduations.

The modular design allows the accessories sold below to be mounted to the movable carriage of the CT1. As shown in the image, the CT1 stage includes the CT101 Ø1" Optic Mount, which has internal SM1 threading (1.035"-40) for mounting Ø1" optical components up to 0.35" thick, or externally SM1-threaded components, such as our SM1 lens tubes. One SM1RR retaining ring, two 4-40 and two M3 cap screws for securing the mount, and two removable dowel pins for alignment are also included with the mount.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
CT1A Support Documentation
CT1ACustomer Inspired! 1/2" Travel Manual Translation Stage for 30 mm Cage Systems
$497.30
Lead Time
+1 Qty Docs Part Number - Metric Price Available
CT1A/M Support Documentation
CT1A/M13 mm Travel Manual Translation Stage for 30 mm Cage Systems
$497.30
Lead Time

Ø1" Optic Mount

CT101 Application
Click to Enlarge
CT101 Optic Mount with SM1 Lens Tube shown attached to the CT1 Translator in a 30 mm Cage System
  • SM1 (1.035"-40) Threaded Bore Directly Accepts Ø1" Optics up to 6.9 mm (0.27") Thick
  • Compatible with Our Line of SM1 Lens Tubes
  • Finger Groove Recess Allows for Ease of Alignment
  • Compatible with Our CT1 Cage Translator and 1/4" Translation Stages

The CT101 provides a means to mount SM1-threaded (1.035"-40) devices as well as Ø1" optics to the CT1 Translator. It is also compatible with our 1/4"-travel translation stages using our MS103 or MS103/M Adapter Plate. One SM1RR retaining ring, two 4-40 and two M3 cap screws, and two removable dowel pins for alignment are included with each unit.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CT101 Support Documentation
CT101Ø1" Optic Mount for Use with CT1A(/M), CT1P(/M) or MS Stages
$51.25
Today

Ø1/2" Optic XY Translation Mount

CT101 Application
Click to Enlarge

The CT1 Translator has been Combined with a CT102 Translating Lens Mount to Create an XYZ Configuration
  • Provides ±0.04" (±1.0 mm) of Travel in X and Y Directions
  • SM05 (0.535"-40) Threaded Bore Directly Accepts Ø1/2" Optics up to 9.9 mm (0.39") Thick
  • Wobble: <100 µrad
  • Resolution: 250 µm/rev
  • Compatible with Our CT1 Cage Translator and 1/4" Translation Stages

The CT102 has an internal SM05 (0.535"-40) threading for mounting Ø1/2" optics up to 0.39" (9.9 mm) thick or externally SM05-threaded components. The CT102 allows for ±1 mm of travel in the X and Y direction using M3 x 0.25 fine adjusters. It is also compatible with our 1/4"-travel translation stages using our MS103 or MS103/M Adapter Plate. One SM05RR retaining ring, which secures a component by sandwiching it between the ring and the back lip on the mount, and two 4-40 and two M3 cap screws for securing the mount are included with each unit.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CT102 Support Documentation
CT102XY Translating Lens Mount for Use with CT1A(/M), CT1P(/M), or MS Stages
$222.44
Today

Ø1/2" Optic Rotation Mount

CT104 Application
Click to Enlarge
CT104 Rotation Mounted shown with the CT1 Cage Translation Stage in a 30 mm Cage System
  • Coarse Rotation: 360° Continuously Adjustable
  • Graduations: 2° Increments
  • Mount Ø1/2" Optics up to 7.3 mm (0.29") Thick
  • Runout: <0.0001" (25 μm) Along Optical Axis
  • Max. Clear Aperture: 0.43"
  • Lockable design
  • Compatible with Our CT1 Cage Translator and 1/4" Translation Stages

The CT104 rotation mount provides 360° of continuous rotation for Ø1/2" (Ø12.7 mm) optics and SM05 threaded components. The 2° graduation allows for precise positioning of components, such as linear polarizers and waveplates. A top-mounted nylon-tip setscrew is used to lock the freedom of rotation when the mount has been set in the correct orientation. It is also compatible with our 1/4"-travel translation stages using our MS103 or MS103/M Adapter Plate. One SM05RR retaining ring, which secures a component by sandwiching it between the ring and the back lip on the mount, and two 4-40 and two M3 cap screws for securing the mount are included with each unit.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CT104 Support Documentation
CT104Rotation Mount for Ø1/2" Optics to Use with CT1A(/M), CT1P(/M), or MS Stages
$105.11
Today

Blank Mount

CT103 Application
Click to Enlarge
CT103 Blank Mount shown on the CT1 Cage Translation Stage
  • Ideal for Custom Machining
  • Center-Drilled Dimple Allows for User to Precisely Align Along the Cage's Optical Axis
  • Finger Groove Recess Allows for Ease of Alignment
  • Compatible with Our CT1 Cage Translator and 1/4" Translation Stages

The CT103 blank device mount has a solid surface to allow the end user to tailor the mount for custom applications. Custom hole sizes and threads can be machined using any size drill bits and taps. A center-drilled dimple is provided to help in aligning with the optical axis during the machining process. It is also compatible with our 1/4"-travel translation stages using our MS103 or MS103/M. Two 4-40 and two M3 cap screws for securing the mount are included with each unit.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CT103 Support Documentation
CT103Blank Mount to Use with CT1A(/M), CT1P(/M), or MS Stages
$45.14
Today