Computer Generated Holograms for Null Testing
Arizona Optical Metrology is well-known for our CGH null correctors that allow interferometric measurements of aspheric surfaces, lenses, and optical systems.
CGH null correctors are:
- Well understood, mature technology
- Easy and quick to specify and purchase
- Easy to install, align, and perform measurements
- incredibly accurate
- Capable of measuring nearly anything: aspheres, freeforms, cylinders, systems
How A CGH is used for measuring aspherical surfaces
Custom Manufactured CGH Nulls for Measuring Aspheric Surfaces
AOM makes optical testing with CGH Nulls accessible to all levels of expertise. Below we have broken the process of ordering and using a CGH Null from AOM into 6 easy-to-follow steps.
CGHs for measurement of optical systems
Computer Generated Holograms accurately create virtually any wavefront that we design. These wavefronts are used for measuring optical systems as well as optical surfaces. Some examples of systems measured by AOM holograms are:
- Assemblies of lenses, such as the field lenses for the Rubin Telescope (Aka LSST)
- Multiple field angle testing for wide-field telescopes
AOM Certified Accuracy
Arizona Optical Metrology applies rigorous quality control for the design, manufacture, and documentation of all product. Each CGH is provided with a certificate of accuracy, listing the QC measurements and verifications.