DISPLAY OF INDICATOR LIGHT IN NIGHT VISION DEVICE USING OPTICAL FIBER SCREEN

摘要

PROBLEM TO BE SOLVED: To provide an improved method visually notifying a user of the status of a night vision device. SOLUTION: The night vision device includes an image intensifier tube (14), and an optical fiber screen (20) disposed in operative relationship to each other. The optical fiber screen includes a longitudinal bundle of multiple optical fibers. A groove (24) is formed in the optical fiber screen and extends transversely to the longitudinal bundle. An indicator (16, 18) is positioned adjacent to the outer surface of the bundle, and is proximate to the groove, where the groove is configured to redirect light emitted from the indicator for observation by a user. The groove may be formed circumferentially around a portion of the outer surface of the longitudinal bundle. The groove includes a surface of ends of multiple cut optical fibers. COPYRIGHT: (C)2007,JPO&INPIT