US Patent Issued to The Johns Hopkins University on Oct. 21 for "Compensating for polarization changes introduced by components with retardation in polarization-sensitive retinal scanning systems" (Maryland Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,776, issued on Oct. 21, was assigned to The Johns Hopkins University (Baltimore).

"Compensating for polarization changes introduced by components with retardation in polarization-sensitive retinal scanning systems" was invented by Boris Gramatikov (Baltimore) and David Guyton (Baltimore).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical apparatus uses polarized light to interrogate birefringence properties of the retina to detect the fixation condition of the eye by sensing characteristic birefringence patterns of the retinal structures. Optical components, as well as optional additional components, interfere with the polarization measurement...