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Tip, Tilt, and Rotation Stage
Adjusts Pitch and
62.5 mm (2.46") Deck Height Adapter
Provides Tip, Tilt, and Rotation
TTR001 Stage with a PM3
The TTR001(/M) Tip, Tilt, and Rotation Stage provides ±5° uncoupled tilt adjustment in pitch and roll, together with ±10° rotation (yaw) adjustment. These adjustments allow optical components and fixtures to be aligned with a plane and then rotated within that plane. The center of rotation axis is located at a line normal to the center of the platform. Both the tip and tilt axes will move with respect to a point located 12 mm below the top surface of the stage on the rotation axis. The top plate features an array of 21 8-32 (M4) threaded holes on a 1/2" (12.5 mm) pitch. An 8-32 to 6-32 thread adapter is included with imperial stages for use with the PM3 and PM4 clamping arms sold below. The PM5 is directly compatible with the imperial stages, and all metric clamping arms are directly compatible with the metric stages; these combinations do not require an adapter.
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TTR001 stage raised to same deck height as MAX311D stage for use in a typical refraction application. The prism is held in place by a PM3 clamping arm attached to the stage using a thread adapter, which is included with the TTR001.
The high-resolution Mitutoyo micrometers incorporated into the stage are marked with a 0.001" (10 µm) scale. Turning the micrometers gives 1.5° of rotation (with a resolution of 0.03°) and 1.78° of tilt per revolution (with a resolution of 0.036°). Preload adjustment to eliminate backlash can be performed by adjusting the knobs adjacent to the micrometers as shown above. One knob adjusts/locks the pitch (Θx) and roll (Θy) axes simultaneously, while the other knob adjusts/locks the yaw (Θz) axis. Note that if the knob is tightened, the motion in that axis is effectively locked until the micrometer is backed off. In this case, some friction may be experienced when adjusting the remaining axis.
The stage is fixed to the work surface via three clearance holes for standard 1/4"-20 (M6) screws. The deck height of the stage is 1.48" (37.5 mm). A Height Adapter Plate [TTR001SP1(/M)] is available to raise the deck height to the standard 2.46" (62.5 mm), making the stage compatible with our NanoMax, MicroBlock, and RollerBlock 3-Axis Stages. The height adapters are fixed to the work surface using the four clearance holes that accept standard 1/4"-20 (M6) screws. The stage is then mounted to the height adapter using the three 1/4"-20 (M6) tapped holes.
A typical application is shown to the right, where the TTR stage is raised up to mate with a MAX311D 3-axis stage. A PM4 clamping arm is used to mount a Pellin Broca prism on the tip, tilt, and rotation stage. An HCS209 Mount and HFB004 fiber holder are mounted on the MAX311D stage and used to hold a collimating lens with connectorized fiber. The collimated laser beam is directed onto the prism, and the laser refraction is adjusted via the TTR001 stage micrometers.
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Clamping Arm Extension Posts with Metric Indicator Groove
Thorlabs' Clamping Arms provide clamping force to secure optics to our kinematic platform mounts, stages, and V-clamps. The PM3(/M) accommodates optics up to 0.97" tall and features a 0.69" center-to-center distance between the post and the nylon-tipped setscrew that holds the optic. The PM4(/M) accommodates optics up to 1.61" and features a 1.16" center-to-center distance between the post and the nylon-tipped setscrew. The maximum optic height of the PM3(/M) or PM4(/M) Clamping Arms can be extended using our PM3SP(/M) or PM4SP(/M) Extension Posts, respectively. These extension posts are identical to the posts included in each complete clamping arm. Each clamping arm features 6-32 (M4 x 0.7) threads. The PM3 and PM4 can be mounted in 8-32 tapped holes by using the AS6E8E thread adapter, which features internal 6-32 threads and external 8-32 threads. This thread adapter has an outer diameter of 0.24", which is the same as the PM4SP extension post and the post included with the PM4 clamping arm. This allows the clamping arm to be adjusted across the seam between either post and the adapter. The smaller diameters of the included post for the PM3 clamping arm and the PM3SP extension post cause the thread adapter to act as a stop for the clamping arm.
The PM5(/M) clamping arm is made entirely from heat-treated stainless steel, which helps maintain stability in fluctuating temperatures and provides vacuum compatibility. This clamping arm is recommended for use with the POLARIS-K1M4(/M), but it can be used with any platform mount or stage that has one or more 8-32 (M4 x 0.7) tapped holes. The PM5(/M) can hold optics up to 1.65" tall, and the distance from the post center to the contact point that holds the optic is 0.90".
Each clamping arm is attached to its post using a flexure mechanism that locks with a 5/64" (2.0 mm) balldriver or hex key. The setscrew on top of the clamping arm also accepts a 5/64" (2.0 mm) balldriver or hex key in order to clamp down on the optic. The post includes a through hole which can be leveraged for added torque when tightening down the post. Please see the diagram above for additional information.