4D products overcome many barriers to traditional, phase-shifting laser interferometers, including vibration, turbulence, and space constraints. 4D has brought the power of dynamic laser interferometry to a wide range of applications, including large optics, general optics, data storage, optical storage pickup heads, and more.

Aerospace Quality verification of electro-optical components and systems for tracking, surveillance and directed energy.
Astronomy Shape measurement throughout the production of terrestrial and space-based telescope optics and systems.
Optics Testing Surface form and shape for flats, spheres, prisms, transparent optics, etc.

3280 E Hemisphere Loop, Ste 146, Tucson, AZ 85706    Tel: +1 (520) 294-5600    Fax: +1 (520) 294-5601