Zygo Corporation is a global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.

Our mission is to enable customer success by delivering innovative precision optical and metrology solutions that exceed expectations.

ZYGO is comprised of these groups:

  • 3D Optical Profilers
  • Laser Interferometers
  • Nano Position Sensors
  • Precision Optical Components & Systems

ZYGO's competencies and success stem from the core values embedded in the DNA of the company – a passion for precision, an obsession with quality, integrity in customer relationships, and pride in everything we do.

We have a large and highly knowledgeable team of experts in the fields of precision metrology and optics who deliver exceptional results for our customers by constantly pushing the boundaries of what is possible. Our passion for innovation is evidenced by approximately 750 patents awarded since the Company's founding. As a vertically integrated company, our teams work collaboratively under one roof.

Founded in 1970, and headquartered in Middlefield, Connecticut, ZYGO's global presence is supported by approximately 500 dedicated and highly skilled individuals.

In 2014, ZYGO became part of the Ultra Precision Technologies Division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electro-mechanical devices. ZYGO enjoys mutually beneficial relationships with its AMETEK sister companies, collaborating on technologies and sharing resources in order to provide the best possible experience for our customers.


Zygo Corporation

Laurel Brook Road

Middlefield, CT 06455-0448


Phone: 1-800-ZYGO-NOW

Fax: 860-347-8372

Contact: Neil Curtis


  • As manufacturers continue to produce a growing number of different optics of varying size and shape, they need a flexible metrology system that can measure multiple parts without major re-tooling.

  • Non-contact metrology can help overcome the quality assurance challenges that come with producing consumer electronics devices featuring a wide variety of materials and design complexity.

  • Freeform optical surface shapes have evolved from an intriguing optical design concept to a practical necessity for applications ranging from space and defense to consumer electronics. The demand is no more strongly felt than in the development of digital immersive displays for AR/MR. 

  • Government regulations and health and safety standards guide the development process for optical medical devices from beginning to end. Unlike other industries where engineers can correct an optical design misstep after the prototype phase, governmental compliance, schedules, and budgets leave little room for changes or improvements after product introduction. Learn some of the key measuring mistakes to avoid ahead of time. 

  • Fuel cells have recently penetrated the electric vehicle market due to their efficiency, quick refueling, and longevity. Many of today’s larger truck manufacturers are looking to fuel cells as a long-haul goods transport solution that can also reduce harmful emissions.

  • Did Denis Gabor build the first all-optical computer for processing interference fringe patterns? Was Isaac Newton the first to create a synthetic off-axis hologram? Is my white-light 3D profiler actually a digital holography system? These are some of the questions addressed in this paper, which considers the many contributions of holography to the advancement of interferometry for surface topography measurement.

  • In this case study, Zygo Advanced Imaging Group's TINT Virtual Stepper Defect Analysis System's ability to predict CD printability of various known features on photomasks is tested. The validation of this tool will help keep both mask makers and wafer makers on schedule.

  • Ignoring materials, intended usage, manufacturability, or measurability often leads to an asphere lens that's too expensive to produce and too difficult to measure. The pieces need to fit together to ensure maximized performance and cost effectiveness.

  • Metronom Health, an early-stage medical device company developing an innovative, opto-enzymatic continuous blood glucose monitoring technology, found that ZYGO’s metrology tools were a key enabling technology that helped to drive their product innovation by providing valuable process and component information.

  • Understanding surface roughness as it relates to a machined part, polished item, or manufactured part is crucial in determining how a part will perform, wear, appear, or function. One tool that can be used with high confidence is a 3D non-contact optical profiler such as the ZYGO Nexview, NewView, or ZeGage.