Nov 12, 2025 · 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 …

Tap the creativity and expertise of our team to solve your metrology challenges. 4D custom interferometers and laser interferometers overcome difficult environments, complex setups …

For over 20 years, 4D Technology has been a leader in innovative metrology products for measuring surface quality and surface defects on precision surfaces, as well as the surface …

4D Technology pioneered the use of Dynamic Interferometry and has been the major innovator in the field for nearly two decades. 4D holds multiple US and international patents on the …

4D polarization-based sensors have enabled scientific discoveries in fields ranging from astronomy to biomedical to oceanography. Compact, fast and field-proven, these unique …

4D Technology is a leader in innovative metrology products for measuring surface quality and surface defects on precision surfaces, as well as the surface and wavefront quality of optics. …

Whether you require a highly repeatable test rig for production measurement or a complex setup for a unique measurement, 4D mounts and accessories will help you maximize measurement …

Non-contact, high-resolution 4D interferometers, profilers and sensors aid science and production in industries from astronomy to medical, enabling new engineering and manufacturing …

4D Technology interferometers have been instrumental in the development and testing of the most innovative ground- and spaced-based telescopes. Learn how 4D has paved the way for …

4Di automated measurement systems combine 4D InSpec surface gages with collaborative robots and other automation. Rapidly measure surface quality and features with high precision to …