MicroTheta-5 Table

MicroTheta-5 Rotary Stage

MicroTheta-5 Rotary Stage is an ultra-compact direct drive rotary table and provides very high performance rotary positioning in an exceptionally small package (20mm high x 54mm wide x 88mm long).

It is ideally suited for photonic alignment applications and provides ±5° of motion with a resolution, repeatability, and stability of only two micro-radians (0.4 arc seconds). The direct drive motor has no contacting parts and drives the rotary table directly via magnetic fields. The motor is a two wire, single phase design, and can hence be driven by any brush type servo amplifier. A 15mm through-bore allows optical paths or cables to be routed through the main bearing. The MicroTheta-5 Stage features built-in limit switches as well as a unique index signal repeatable to two micro-radians. A removable cover on the side of the unit allows large angle manual rotation through 270°; in conjunction with a master sphere ball, this allows precision location of the rotary axis.

A pair of these stages can be co-mounted so as to produce a high performance actual (as opposed to virtual) pivot, of considerable value in fiber, collimator, and filter alignment.

• Ultra-compact, only 54mm wide x 88mm long x 20mm high
• 15mm through-bore
• +/- 5° travel
• 360° per second top speed
• 15,000 per second 2 angular acceleration
• 2 microradian (0.4 arc-second resolution)