The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Dec. 10, 2021
Universiteit Twente, Enschede, NL;
Pepijn Pinkse, Enschede, NL;
Matthijs Velsink, Amsterdam, NL;
UNIVERSITEIT TWENTE, Enschede, NL;
Abstract
A key holder includes a ferrule, a multimode light guide at least partly embedded inside the ferrule, an optical key which has a light scattering material, and a mechanical mount which mounts each of the ferrule, the multimode light guide, and the optical key. The multimode light guide has a front facet and a back facet which are arranged at opposite ends. The back facet of the multimode light guide contacts the optical key. Light can enter into the multimode light guide via the front facet, propagate through the multimode light guide, be scattered by the optical key, and propagate back through the multimode light guide and exit via the front facet. The mechanical mount is detachably connected to a mechanical mount terminator. The front facet of the multimode light guide is oriented in a direction of the mechanical mount terminator.