US Patent Issued to Associated Universties on Oct. 6 for "Image-plane self-calibration in interferometry using closed triad imaging" (British, American, Australian Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,009, issued on Oct. 6, was assigned to Associated Universties Inc. (Vienna, Va.).

"Image-plane self-calibration in interferometry using closed triad imaging" was invented by Nithyanandan Thyagarajan (Myaree, Australia), Christopher L. Carilli (Socorro, N.M.) and Bojan Nikolic (Cambridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method to derive phase-coherent images with an interferometer, in situations where interferometric phase errors can be factorized into element-based terms ('piston phases') is disclosed. The method is preferably implemented completely in the image domain, without resort to aperture plane measurements of v...