Optics Innovations
Zygo Corp. Measures 40 Years
This year marks the 40th anniversary of Zygo Corp., a worldwide supplier of optical metrology instruments and precision optical components. One of the company’s founders refl ects on the company’s past and the factors that have contributed to its success.
Paul Forman (left) shows the GH interferometer to Marty Saepoff of Dynasil Corp.
Zygo Corp. began with the recognition of an unmet need. In the late 1960s, when I was a Princeton postdoc working with Prof. Henry Hill at Wesleyan University, we found ourselves frustrated that no companies could reliably produce high-precision non-circular plano optics with very low scatter and low surface defects—nor had they the metrology capability to verify quality. Of course, we realized this just when we needed such an optic for a research project.
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