November 2017


Vertical Digital Radius Slides for Accurate Radius of Curvature Measurement



4D Technology Vertical Digital Radius Slide with AccuFiz Fizeau Laser Interferometer

    Tucson, AZ, November 7, 2017 – 4D Technology Corporation, manufacturer of optical metrology systems, has introduced a Vertical Digital Radius Slide for precise Radius of Curvature (ROC) measurement of concave or convex optics.


The Vertical Digital Radius Slide (VDRS) provides axial positioning resolution to 1 μm for extremely accurate Radius of Curvature measurement using 4D Technology’s AccuFiz® compact laser interferometers.

The VDRS integrates with 4D Technology’s 4Sight data analysis software for fast, wizard-based ROC measurement.