Case Studies
EXPLORE MRF APPLICATIONS
Our Magnetorheological Finishing (MRF) case studies highlight how the MRF technology from QED Technologies® is used to solve complex optical manufacturing challenges. Dive into real examples that showcase technical insights, application-specific outcomes, and the precision advantages MRF brings to every project.
Print-Through Correction on Lightweight Silicon Carbide Mirrors
Case Study Summary Lightweighted silicon carbide mirrors are commonly used in space and large-aperture optical systems but are prone to print-through and quilting errors when polished using convention...
Manufacturing Super-Flat Optical Flats Using SSI and MRF
Case Study Summary QED Technologies combined Subaperture Stitching Interferometry (SSI) with Magnetorheological Finishing (MRF) to manufacture a fused silica optical flat with peak-to-valley flatness ...
Aspheric Form Generation Using MRF Technology
Case Study Summary This case study illustrates how Magnetorheological Finishing (MRF) can be used not only for correction but also for inducing aspheric form. A 170 mm diameter BK7 optic with an initi...
Improving Optical Mold Surface Roughness and Figure with MRF
Case Study Summary QED Technologies applied Magnetorheological Finishing (MRF) to smooth mid-spatial-frequency errors, reduce micro-roughness, and correct figure on a tungsten carbide optical mold. Th...
High Precision Sphere Correction Using MRF Technology
Case Study Summary This case study demonstrates the use of Magnetorheological Finishing (MRF) to correct both large convex and deep concave spherical optics to ultra-high precision. Using QED Technolo...
High NA Concave Polishing Using Extended MRF™ Capability
Case Study Summary QED Technologies developed an extended high numerical aperture (NA) rotational polishing mode for Magnetorheological Finishing (MRF) to enable deterministic finishing of steep conca...
EXPLORE SSI APPLICATIONS
Explore real-world case studies showing how Subaperture Stitching Interferometry (SSI) supports complex optical measurement. These examples showcase detailed surface data, application-driven solutions, and reliable measurement performance across a range of optical components.
High-Precision Sphere Measurements with SSI™
Case Study Summary Focusing on the repeatability of SSI-based measurements, this study confirms the system’s ability to provide consistent results across multiple scans of the same concave spherical...
High-Precision Asphere Measurements Using SSI™
Case Study Summary This case study showcases SSI’s ability to perform sub-nanometer precision measurements on high-precision aspheres. By analyzing two sets of 10 stitched measurements with slightly...
Cross-Test Results with SSI™ for High-Precision Sphere Measurements
Case Study Summary This case study explores the accuracy and repeatability of QED Technologies’ Subaperture Stitching Interferometry (SSI®) in measuring high-precision spherical optics. Using a con...
Applications of SSI™: High Precision Sphere Measurements
Case Study Summary This study highlights the exceptional measurement repeatability and accuracy of QED’s Subaperture Stitching Interferometry (SSI) technology. Through rigorous testing on a small, f...
EXPLORE NMF APPLICATIONS
The NMF case studies demonstrate how advanced form metrology enables accurate, non-contact measurement of complex and freeform optical surfaces. Each example highlights measurement strategy, application outcomes, and the precision achieved with NMF technology.
Measurement of Non-Uniform AR Coated Surfaces Using Optical CMM
Case Study Summary This case study demonstrates how QED’s NMF metrology systems can accurately measure challenging AR-coated optical surfaces, even in the presence of non-uniform coatings that disto...
Dual Sided Surface Form and Lens Centering Tolerance Characterization
Case Study Summary In this application note, QED explores how NMF metrology provides comprehensive dual-sided measurement of high-precision lenses. By enabling simultaneous surface form analysis and l...
Flexible and Fast Measurement of a Large Off-Axis Non Circular Freeform Optic
Case Study Summary This case study highlights the power of QED’s NMF system in handling large, complex freeform optics with off-axis geometries. The non-contact, cylindrical-coordinate measurement a...
Combine Optical and Tactile Measurements
Combine Optical and Tactile Measurements for Sub-Aperture Form Evaluation This study presents a hybrid approach that leverages NMF’s high-resolution optical scanning alongside tactile profilometry t...
NMF™ Application: High point-density mid-spatial frequency measurement on polished and ground surfaces
Next to polished surfaces, the optical probe of the NMF machines can also measure ground surfaces. This brings the versatility, speed and accuracy to surfaces that can normally only be measured after ...
Interested in learning more?
If you are interested in learning more about these case studies or our technology, contact us a info@qedtech.com.