Where precision meets innovation

4D Technology is the leader in high-resolution, vibration-insensitive surface and wavefront measurements for challenging applications.

Measure right on the shop floor

With ultra-fast imaging times, the 4D InSpec products bring 3D portable, high-resolution inspection right to the shop floor – either handheld or robot-mounted configurations.

Discover our Products & Solutions

From the world’s premiere astronomical observatories, to optical manufacturing shops, to aircraft flight lines, 4D gauges and interferometers provide 3D measurements accurately, despite vibration and noise that stop other instruments in their tracks.

Reinventing metrology

Vibration-insensitive measurements. Anywhere.

High-resolution SWIR interferometers

From 1535nm – 1635nm, designed for component qualification and optical alignment in aerospace, space and satellite communications, and earth-observing in the infrared.

Leverage CGHs for freeform optics

Combine CGHs with our PhaseCam or AccuFiz systems to qualify freeform and aspheric optics.

Reinventing inspection

Automated inspection

Vastly improve inspection throughput and quality in aviation, aerospace, and precision machining.

Industry standard for precision and innovation: vibration-insensitive 3D measurement

4D Technology is the leader in high-resolution surface, geometry and wavefront measurements for challenging locations and applications.

Discover our Products & Solutions

Optical Metrology

Astronomy, Optics Manufacturing, Aerospace & Defense, Free-space Optics & Research 

4D Technology’s Optical Metrology Products assure the quality of precision optics and optical systems. Our Dynamic Interferometry assures the surface and wavefront quality, despite vibration or turbulence.

It’s no surprise that virtually every space- and ground-based telescope for the last two decades has been tested with 4D instruments.

Across the spectrum, from UV to LWIR, 4D instruments, technology and software are everywhere optics are made and used.

Industrial Inspection

Aerospace, Aviation, MRO, Precision Machining, Medical Devices, Renewable Energy & Automotive

High-resolution, optical 3D measurement gauges you can bring right to your part.  With one-button operation, quickly and accurately quantify defects such as pits, scratches, and corrosion and geometries such as edge break, chamfers, and radius. 

Handheld, shop floor, and automated capabilities.

Measurement anywhere.

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PhaseCam Twyman Green

 

  • Twyman-Green interferometer
  • Patented instantaneous, vibration-immune technology
  • Concave optics, meter-class telescope optics, large imaging system alignment, moving parts
  • VISIBLE-NIR-SWIR-LWIR
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AccuFiz Fizeau

 

  • Fizeau interferometer with dynamic interferometry
  • Flats, lenses, vacuum/environmental chambers
  • VISIBLE-NIR-SWIR

NanoCam Optical Profiler

 

  • Patented instantaneous, vibration-immune surface roughness profiler
  • Optical polish and surface finish
  • Angstrom-level resolution
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4D InSpec Optical Surface Gauge

 

  • Patented instantaneous 3D surface measurement
  • Portable, shop floor measurements
  • Measure features such as edge break, chamfers, and radii and defects such as pits, dents, and corrosion
  • Measure down to 2 microns
  • Handheld, workstation, or robot-mounted
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4Di InSpec AMS

 

  • Automated surface defect and feature inspection
  • High-throughput, high-resolution
  • Measure dozens of features and defects in minutes rather than days
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4D SurfSpec Coating Gauge

 

  • Coating assurance gauge
  • < 15nm resolution
  • Raw materials, e-coat, & painted surfaces
  • Portable handheld or robot-mounted

References for Optical Testing

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Tsphere selection calculator
Calculator
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Optical testing setups
Setups Guide

Why Choose 4D?

4D Technology’s customer service and technical support is second to none. As a small company it can be difficult to stay current with cutting edge technology, but the 4D team worked with us to make it happen quickly.  Since we’ve received the 4D InSpec, it has been instrumental in speeding up inspections and reducing scrap and rework. I can’t say enough good things about their willingness to help small businesses succeed.”

John Coates

President TomCat Aviation, an FAA Certificated Repair Station specializing in jet engine hardware service

Our graduates are equipped with the necessary skills to immediately become valuable technicians in the optics industry. To ensure that, we partner with industry leaders in their fields, such as 4D, to incorporate and teach modern, advanced technologies. The NanoCam provides opportunity for LaserTech students to gain applied experience measuring optical surface roughness, and to see first-hand the effects of various polish levels on the texture of an optical surface. This includes learning about the limits of the measurement technique. 4D’s service and support continues to surpass expectations, as we have relied on in-person hardware demonstrations from 4D field service engineers for the past decade. As an industrial advisor, we also leverage 4D’s metrology expertise to review and refine our curriculum.”

Brian Monacelli

Laser Technology Professor, Pasadena City College

They are able to measure around a curved surface, they are able to measure in a divot, or measure many different areas of the engine we were not able to measure before accurately, you could just not do it. There was nothing out there that could do it.”

Kevin Hughes

Director of Maintenance, BP AERO

Our three 4D InSpecs paid for themselves in a week.”

Machining/Rework Process Engineer, US Air Force

The 4D Technology interferometer has enabled us to make measurements that were not previously possible, including measurements that are crucial to the success of the James Webb Space Telescope Project. The 4D system has exceeded our expectations.”

Babik Saif

Space Telescope Science Institute

It is such a pleasure using the 4D Technology machine (The Ferrari of interferometers). Thank you for supplying us with such a great product.”

PhaseCam Customer

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