12 Jan 2009 4D Technology is the leading manufacturer of Dynamic Interferometry products, providing accurate measurement of optical grade surfaces, even in the presence of vibration and air turbulence. 4D Technology optical interferometers use proprietary, high speed, high resolution wavefront sensors to measure the shape of optical surfaces with extreme accuracy.
Acquiring all phase data simultaneously in as little as 30us, 4D interferometers can measure your part even in the noisiest environments, without isolation or air turbulence abatement and enabling complex tests between multiple unisolated tables, remote measurements in environmental chambers and long stand-off distances. Odd shapes, pupil obscurations, moving parts, or air turbulence and vibration present no problem.
4D Technology manufacture Dynamic Interferometers for applications such as testing general & large, metre-scale optics, pick-up heads, data storage media such as megnetic HDD or glass media front + back surfaces. |
