4D Technology designs and manufactures laser interferometers, surface roughness profilers and interferometry accessories, for accurate measurement of optics, optical systems and precision machined surfaces. Our innovative products utilize state-of-the-art technology that can be deployed in production environments, even in the presence of severe vibration and turbulence.

4D interferometers and optical profilometers are used daily in critical applications in astronomy, aerospace, optical testing and many other industries. 4D's history of innovation has changed how and where interferometric measurement can be used, from unique space-based projects to high throughput production of precision components.
4D Technology is a wholly owned subsidiary of Onto Innovation.

4D Technology Corporation

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