ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,333, issued on Sept. 9, was assigned to LEIBNIZ-INSTITUT FUR PHOTONISCHE TECHNOLOGIEN E.V. (Jena, Germany).

"Hybrid optical fiber, endoscopic system, and method for examining a sample" was invented by Tomas Cizmar (Weimar, Germany), Yang Du (Weimar, Germany) and Katrin Wondraczek (Jena, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a hybrid optical fiber (1) which comprises a plurality of fiber cores (2), a first cladding (3) which encloses the plurality of fiber cores (2), and a second cladding (4) which surrounds the first cladding (3). In this case, the fiber cores (2) have a first refractive index n1, the first...