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
Please Wait
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.
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CT1 Packaging
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.
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. |
- 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.
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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.
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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.
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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
- 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