Officials at Janos Technology Inc. in Keene, N.H., a supplier of advanced optical assemblies and precision infrared (IR) optics, announced the addition of the QED Sub-aperture Stitching Interferometer (SSI). The SSI will expand Janos’ current range of optical fabrication and testing services by increasing interferometric capabilities, providing radius of curvature and surface figure measurements for high numerical aperture (NA) and large aperture optics, Janos officials say.
The automated SSI workstation features a five-axis CNC machine base integrated with a Zygo VeriFire AT phase-shifting interferometer capable of measuring lenses as small as 280-mm diameter and NA of 1. The SSI automatically acquires and stitches sub-aperture data, calculates and compensates for reference wave-front errors thus achieving better than lambda/100 P-V accuracies (at 632.8 nm).
Janos Technology offers custom precision optics, optical assemblies, and a family of thermal imaging lenses, for multi-spectral applications in military and defense, industrial, commercial OEM, research and development, aerospace and astronomy. For more information visit www.janostech.com.