CTTPS – Cryo Tip-Tilt-Piston Stage

Combined angle and focus adjustments of ½”and 1” optics, such as mirrors and lenses

Product description

The Cryo Tip / Tilt / Piston Stage (CTTPS) accepts 1/2″ or 1” optical elements and can be operated in a cryo-vacuum environment. It is actuated with JPE’s Cryo Linear Actuators (CLA). Play of the tip / tilt / piston functionality is eliminated by built-in preload springs. Lateral position is not achieved via traditional v-groove constructions, but by using a deformable metal membrane. This feature not only eliminates play but also the erratic motion seen in the traditional designed tip tilt piston stages. The optics are clamped from the side with a single spring loaded screw.

specsunitCTTPS1/2CTTPS1
SYSTEM SPECIFICATIONS
Active axes3
Type of motionTip / Tilt / Piston
Optical diametermm (inch)12.7 (1/2)25.4 (1)
Open optical aperture diametermm11.521
System tip / tilt range w.r.t optics centredeg± 7.2± 5.6
System piston rangemm± 1.5
Coarse actuatorCLA2201
Main construction materialTitanium, stainless steel
ACTUATOR SPECIFICATIONS
Specifications are given for individual actuators unless otherwise mentioned.
See interface drawing for transformation matrix from actuator outputs to system motion.
Coarse rangemm± 1.5
Coarse step size @ 293 Knm5-25
Coarse step size @ 4 Knm1-5
Operating temperatureK0.02-375
Massgrams160170
Coarse actuator spindle pitchmm/turn0.25
DRIVE ELECTRONICS
Controller/driverCAB-230(115), CADM(2), MCM

CTTPS1/2: Cryo Tip/Tilt/Piston Stage, optical diameter 1/2 inch
CTTPS1: Cryo Tip/Tilt/Piston Stage, optical diameter 1 inch

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