About 4D Technology

4D Technology is a leader in innovative metrology products for measuring surface quality and surface defects on precision surfaces, as well as the surface and wavefront quality of optics. 4D’s patented Dynamic Interferometry^®technology enables 4D’s laser interferometry products to measure in difficult environments, where vibration, air turbulence or rapid motion have traditionally prevented accurate measurement. 

4D Technology has been an Onto Innovation subsidiary since November, 2019.

New instruments in surprising situations

Using our unique and proprietary dynamic measurement techniques, our award-winning laser interferometer technology is used in to a wide variety of applications, including:

• factory-floor inspection
• telescope mirrors and systems
• biomedical research
• environmental sensing and imaging
• and much more

We collaborate with institutions and companies to create and manufacture accurate metrology for tough environments and difficult measurements.

Learn About 4D Technology’s Other Metrology Products

• AccuFiz and FizCam Fizeau Interferometers (What is a Fizeau Interferometer?)
• PhaseCam Twyman-Green Interferometers
• NanoCam Sq Optical Profilers
• PolarCam Imaging Polarimeters
• Custom Metrology Solutions
• Metrology Software