4D Technology specializes in innovative metrology products for measuring surface quality and defects on precision surfaces, along with assessing surface and wavefront quality of optics. With over 20 years of experience, their patented Dynamic Interferometry(r) technology enables accurate measurements in challenging environments. Their interferometers have been utilized by NASA for projects like the James Webb Space Telescope. Through their award-winning laser interferometer technology, they cater to various sectors including factory-floor inspection, telescope systems, biomedical research, and environmental sensing.