The versatile Model 481-A rotary stage is ideal for fine-tuning the angular orientation of any component after rotating it to an approximate angle.
An inner stage rotates 360° in a precision bored bushing that locks with a side mounted
thumbscrew. The outer stage is a high resolution, tangentially driven design. Scale markings
indicating every degree and a vernier with 5 arc min markings are engraved on the side of the
stage. Model 481-A is also available with 100 pitch AJS Fine Adjustment Screws for higher resolution. The stage
includes two 1 in. (25.4 mm) diameter retaining rings and a solid aperture insert with a centered
clearance hole for on-axis mounting of components.
• Sensitivity to 15 arc sec
• 360° coarse/5° fine motion
• Post or Table-top mounting
• Rotates 1 in. (25.4 mm) diameter polarizers and wave plat