dynamic laser interferometers measure the surface shape of spherical
optics from several millimeters to tens of meters in diameter. Because
4D dynamic systems can measure despite air flow and vibration they can
accommodate long stand-off distances, complex test setups and difficult
without the need for expensive isolation systems.
4D systems measure coated and uncoated spheres, in wavelengths from deep UV through
IR and diameters. Optional accessories and diverging optics simplify measurement setup for accurate measurement of focal optics and opto-electronic
4D laser interferometers feature 4Sight software for
comprehensive analysis of spheres, including Zernike and Seidel analysis,
and much more.