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.
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
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
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
4Di InSpec AMS
- Automated surface defect and feature inspection
- High-throughput, high-resolution
- Measure dozens of features and defects in minutes rather than days
4D SurfSpec Coating Gauge
- Coating assurance gauge
- < 15nm resolution
- Raw materials, e-coat, & painted surfaces
- Portable handheld or robot-mounted
References for Optical Testing
Why Choose 4D?
What’s New
3D Chamfer, Rounding and Edge Break Measurements
Edge Break: Measuring Chamfer and edge radiiIntroducing 4D InSpec's Edge Break application As an optional expansion for 4D InSpec owners, we are offering Edge-Break as a new application in the 4D InSpec software. The Edge Break optional analysis package provides...
Portable backpack metrology kit released
If the part will not come to you, you must go to the partIntroducing 4D InSpec's Backpack Portability Kit The 4D InSpec 3D inspection gauge has amazing portability: not only is it handheld, now you can walk around the factory or the flightline with it. Our aerospace...
Developing Chamfer and Edge Break Measurements
Measuring edges and corner radii with 4D InSpec The Superiority of 3D Measurements "Breaking" an edge refers to rounding a corner or adding a flat chamfer. Edge break is often done to improve the longevity of a part, or improve the safety of humans handling the part....
NanoCam on Robot
Put a Nano-roughness Profiler on a robot!With NanoCam surface roughness profiler mounted on a robot, you can measure sub-angstrom polishing results on flats, spheres or complex objects easily. Make quick, accurate work of getting sub-angstrom measurements of your...
