See us in Munich, Germany, at the TRIOPTICS Booth in Hall A2 Booth 405

Many features
(in a low cost system!)

  • Easy to use, 4 inch aperture downward looking, rigid platform
  • High throughput, vibration isolation table not required
  • High resolution, low distortion 1x and 4x optical zoom
  • Low coherence, no spurious backside fringes
  • High reliability LED light source at 633nm
  • Turn-key system with integrated staging
  • Sub-nanometer precision

Stop using laser Fizeau interferometers for flat work!

Add capacity for flat testing with lower cost OptoFlat.
Free up other laser interferometers for spherical work.

Measure flatness

Of thin glass without backside fringes

Measure wavefront

With optional reflection flat fixture

Measure process fingerprint

High-pass filtered maps show polishing marks

OptoFlat, designed for production quality control and incoming quality assurance of polished plano optical components is a low cost, high performance flatness interferometer. Quickly and efficiently measure surface flatness of mirrors, coated and uncoated, beamsplitters, windows, prisms, thin glass wafers and glass hard drive substrates in a small footprint, rigid platform that does not need a vibration isolation table in typical lab and production enviroments. Measure the flatness of precision polished metal and ceramic components as well.


See the many interferometer features

OptoFlat technology

See what makes OptoFlat unique

Recent News

June 24, 2019 Monday

Paper Presentation - Optical Measurement Systems for Industrial Inspection XI

Dr Klaus Freischlad will be presenting a paper titled "Topography measurement of glass disk substrates with subnanometer resolution", during Session 3 Interferometry II, SPIE Optical Metrology Conference in Munich Germany. InterOptics is a SPIE Corporate Member.

February 5-7, 2019

See us at Photonics West, Moscone Center South, Booth #128

Come and see us at SPIE Photonics West! We will be displaying OptoFlat, the low coherence flatness interferometer, a Prism Award Finalist, at Booth #128 as part of the Arizona Optics Valley pavilion. InterOptics is a SPIE Corporate Member and a member of the Arizona Technology Council Optics Valley.

Bring samples to measure!

November 30, 2018

OptoFlat is a 2019 Prism Award Finalist

SPIE and Photonics Media Prism Award program recognizes outstanding examples of the imaginative range and innovation reach of photonics R&D. "The Prism Awards give well-deserved recognition to technical teams in the industry who have climbed over one of the most challenging walls, bringing a leading-edge product from an R&D lab to the market." -Laura A. Smoliar, Managing Director at Berkeley Catalyst Fund, and 2018 Prism Award judge.

August 20, 2018

SPIE Optics + Photonics, San Diego

InterOptics exhibits at the SPIE Optics + Photonics Conference.

August 20, 2018

Presenting OptoFlat

InterOptics introduces OptoFlat, flatness interferometer incorporating engineered coherence for high precision and capability to measure plane parallel optical components without spurious interference from the backside.


InterOptics Building

InterOptics operates from the Shamrock Optics Center, an 18,000 square foot facility with temperature controlled metrology rooms supporting optical fabrication and precision CNC machining. Assembly areas include HEPA clean airflow benches.

We are growing, looking for more people to join us in creating new precision optical metrology systems.