SM1-Compatible Translation Mounts
Compatible with Our Extensive Selection of SM1 Lens Tubes
Designed to Center Ø1" Optics in a Beam Path
Wobble: <100 µrad
Thorlabs offers a variety of optic mounts for XY travel. These mounts utilize M3-0.25 fine adjustment screws to provide ±1mm of travel perpendicular to the optical axis. The adjustment screws provide 250 µm/rev, and there is a 5/64 hex socket in the back end of each screw. An L-wrench may be used to achieve small incremental movements. This XY mount utilizes SM series threads to secure the optic, making them compatible with virtually any externally threaded SM series component. The LM1XY accepts optics up to 8 mm (11.25 mm) thick.
±1 mm Travel in X and Y
The CXY1 XY Translator provides ±1 mm of travel perpendicular to the optical axis of a 30 mm cage system. The movable carriage is internally SM1 (1.035"-40) threaded and directly accepts Ø1" optics up to 0.39" (10.0 mm) thick when secured using the included SM1RR retaining ring. The fixed back side is also threaded to allow SM1 lens tubes to be attached. The center carriage has been designed to offer pure X and Y translation. The translation is actuated by two 3/16"-100 lockable adjusters. The mount features vertical and horizontal tick marks to help maintain alignment of the mounting carriage.
The ST1XY translation stage utilizes hardened tool steel components on all moving parts to ensure long-term, drift-free operation. The ST1XY is designed to connect with our extensive line of Ø1" SM1 Lens Tubes as well as our 30 mm cage assemblies to offer great flexibility when building optical systems. Three 8-32 (M4) tapped holes are provided on the bottom surface to allow direct mounting on our Ø1/2" Posts.
The two locking screws can also be threaded through counterbores in the back plate of the SPT1T (shown here) or SPT1.
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The SPT1(/M) and SPT1T(/M) Slip Plate Positioners are designed to provide coarse XY positioning of optical components within our 30 mm Cage Assembly System. This design provides for manual adjustment only and is best utilized in conjunction with an alignment laser to monitor centricity. The front plate can be locked into position against the fixed plate via two locking screws, which can be threaded from either the front or back side of the mount.
The SPT1(/M) accomodates Ø1" optics up to 0.08" (2.03 mm) thick, while the thicker front plate on the SPT1T(/M) can hold Ø1" optics up to 0.34" (8.6 mm) thick. Unmounted optics can be secured with SM1RR Retaining Rings, two of which are included with the SPT1T(/M). The center-located SM1 (1.035"-40) tapped through hole also directly accepts externally SM1-threaded components.
Provides Translation Parallel with Optical Axis
Actuators Provide Smooth Adjustment
The flexure design of our SM1Z translator provides 1.5mm of travel along the optical axis of our Cage Assembly System. The flexure approach ensures a stable, highly repeatable translation. The translating carriage, tapped with our SM1 (1.035"-40) thread, can directly accept Ø1" optics up to 0.18" (4.57mm) thick. Thicker optics can be mounted to the SM1Z via our SM1 series Lens Tubes.
Coarse movement is achieved by sliding the SM1Z along the rods of a cage assembly. Once positioned, four #4-40 setscrews apply locking force to the cage rods, firmly holding the mount in place. Fine movement of the lens carriage is accomplished with the precision micrometer head actuator. The actuator knob is graduated in 1µm increments for a total of 50 increments per revolution.
For cage assemblies requiring a longer translation range along the optical axis, Thorlabs offers the CT1 stage capable of a full 1/2" (13mm) of travel.
Angular Deviation: <150 µrad
Micrometer Drive: 0.001" per Graduation (Imperial), 10 µm per Graduation (Metric)
Bearing Type: Ball Bearing
Comes with CT101: Ø1" Optic Mount
The CT1 Cage Translator is designed to be utilized in 30 mm cage systems that require translation along the optical axis of the cage. A modular design approach has been taken to allow a series of accessories to be mounted to the movable carriage of the CT1. Precision linear ball bearings are used to ensure smooth high resolution motion. A graduated micrometer provides 1/2" (12.7 mm) of linear translation and has 10 µm (0.001") graduations. The smallest incremental movement of the carriage is approximately 1µm. As shown in the image, the CT1 stage also includes CT101 SM1 threaded mount. For more information on the included mount, see below.
Compatible with SM1 Series Lens Tubes
The CT101 has an internal SM1 threading for mounting Ø1" components or externally threaded SM1 components, which includes the SM1 lens tubes. The mount is compatible with the MS103 adapter plate and with the CT1 30 mm cage Z axis translation stage. One SM1RR retaining ring, which secures a component by sandwiching it between the ring and the back lip on the mount, and two 4-40 cap screws for securing the mount are included with each unit.