ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,243, issued on April 29, was assigned to WOOPTIX S.L. (Madrid).

"Method and optical system for characterizing displays" was invented by David Carmona Ballester (Santa Cruz de Tenerife, Spain), Juan Manuel Trujillo Sevilla (Santa Cruz de Tenerife, Spain), Sergio Bonaque Gonzalez (Santa Cruz de Tenerife, Spain) and Jose Manuel Rodriguez Ramos (San Cristobal de la Laguna, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a method for characterizing and operating a display, such as a light-field display or a display with or without a phase screen, comprising: an input stage wherein at least one test signal is provided as inpu...